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VFP 6 - Getting at hidden picture information

eric43 (Programmer)

(OP)

9 Jan 06 01:00

If you right click an image in Explorer and go to 'Properties' there are 3 tabs. If you are lucky the summary tag screen will contain a mess of details about the image - obviously stored by the camera.

Is there a way to access this information on an image file via VFP?

Thanks

Eric

GriffMG (Programmer) · Answer 1 · 2006-01-09 04:12:53

Hi Eric,

I'm assuming you are after things like the size (in pixels) and other file specific information.

Try downloading the image file from the camera, onto a hard disc on your machine - then use Explorer to see the properies. You *should* find that they are still visible - i.e. not stored in the camera, but in the file itself.

Now all you need to do is read the file in binary for (as Explorer does for files it recognises - such as JPG etc).

After that, you need to know a fair bit about the file format for JPG files - which I don't! - but this is not so bad, as some kind soul has done the bulk of the hard work for you here:

http://www.freevbcode.com/ShowCode.Asp?ID=112

Albeit in VB (not VFP), but that shouldn't be too hard to convert.

Good luck

Martin

Regards

Griff
Keep ing

Neil Toulouse (Programmer) · Answer 2 · 2006-01-09 08:00:06

Isn't this know as the EXIF information? I know there are ActiveXs out there for reading that info ( if you don't mind apending the money!!). Do a google on "EXIF ACTIVEX"

Neil

I like work. It fascinates me. I can sit and look at it for hours...

Mike Gagnon (Programmer) · Answer 3 · 2006-01-09 12:06:53

eric43

You can use WIA (Windows image acquisition)

CODE

Img = CreateObject("WIA.ImageFile")
Img.LoadFile ("C:WINDOWS\Web\WallpaperBliss.bmp")
s = "Width = " + TRANSFORM(Img.Width) + chr(13) + ;
    "Height = " + TRANSFORM(Img.Height) + chr(13) + ;
    "Depth = " + TRANSFORM(Img.PixelDepth) + chr(13) + ;
    "HorizontalResolution = " + TRANSFORM(Img.HorizontalResolution) + chr(13) + ;
    "VerticalResolution = " + TRANSFORM(Img.VerticalResolution) + chr(13) + ;
    "FrameCount = " + TRANSFORM(Img.FrameCount) + chr(13)
If Img.IsIndexedPixelFormat
    s = s + "Pixel data contains palette indexes" + chr(13)
EndIf
If Img.IsAlphaPixelFormat
    s = s + "Pixel data has alpha information" + chr(13)
EndIf
If Img.IsExtendedPixelFormat
    s = s + "Pixel data has extended color information (16 bit/channel)" + chr(13)
EndIf
If Img.IsAnimated
    s = s + "Image is animated" + chr(13)
EndIf
If Img.Properties.Exists("40091")
            v = Img.Properties("40091").Value
    s = s + "Title = " + v.String + chr(13)
EndIf
If Img.Properties.Exists("40092")
            v = Img.Properties("40092").Value
    s = s + "Comment = " + v.String + chr(13)
EndIf
If Img.Properties.Exists("40093")
            v = Img.Properties("40093").Value
    s = s + "Author = " + v.String + chr(13)
EndIf
If Img.Properties.Exists("40094")
            v = Img.Properties("40094").Value
    s = s + "Keywords = " + v.String + chr(13)
EndIf
If Img.Properties.Exists("40095")
            v = Img.Properties("40095").Value
    s = s + "Subject = " + v.String + chr(13)
EndIf
MESSAGEBOX( s)

You can find more information on WIA here (sorry its french)

http://www.atoutfox.com/articles.asp?ACTION=FCONSULTER&ID=0000000080

Mike Gagnon

If you want to get the best response to a question, please check out FAQ184-2483 first.
ReFox XI (www.mcrgsoftware.com)

eric43 (Programmer) · Answer 4 · 2006-01-11 06:07:31

I'm already using the code U provided before Mike and it works well - but of course there is a heap of other information in a digicam file.

It seems that different cameras start there information at a different byte in the image file header.

Someone may want to try the following form with a letter drop down for the search letter - then an edit box with the cleaned up image header - then a text box with the
byte number of the found chr instances then a drop down with the strings found. FWIW

CODE

** Form : frmimagdata
**********************************************************************
frmimagdata ***  Form1
PROCEDURE Load

PUBLIC search_chr
ENDPROC
** procedure end ***************************************************

frmimagdata ***  Combo1
PROCEDURE InteractiveChange
search_chr = this.value
*!*    SET step on
Delete FILE points.txt
PUBLIC ARRAY aMyStrlist[1]

myworkfile = getfile()
thisform.label1.caption = myworkfile
myfile=filetostr(myworkfile )

mynewstring = ''
N = 1
a = 1
DO while !eof()

    mystring = ASC(subst(myfile,n,1))

    IF mystring < 32 OR mystring > 126
        mychar = chr(128)
        K =1
    ELSE
        mychar = subst(myfile,n,1)
        K = 1
        IF mychar = search_chr

            STRTOFILE(transform(n)+ chr(10),'points.txt',.t.)

        ENDIF

    ENDIF
    N = n + 1
    IF n = 1000
        EXIT
    ENDIF
ENDDO

newline = subst(myfile,159,25)
aMyStrlist(a) = newline
a= a +1
DIMENSION aMyStrlist(a)
newline = subst(myfile,179,25)
aMyStrlist(a) = newline
a= a +1
DIMENSION aMyStrlist(a)
newline = subst(myfile,213,25)
aMyStrlist(a) = newline
a= a +1
DIMENSION aMyStrlist(a)

myfile2 = filetostr('points.txt')

thisform.edit1.value = mynewstring
thisform.text1.value = myfile2
thisform.combo1.value = aMyStrlist

ENDPROC
** procedure end ***************************************************

frmimagdata ***  Combo1
PROCEDURE Init
PUBLIC ARRAY aMyChrlist[1]

a = 1
FOR n = 65 to 90

    aMyChrlist(a) = chr(n)
    a= a +1
    DIMENSION aMyChrlist(a)

ENDFOR

ENDPROC
** procedure end ***************************************************

**********************************************************************
** End of form procedures....: frmimagdata

So I hope someone can throw some light on the mystery

- where is the

craigsboyd (IS/IT--Management) · Answer 5 · 2006-01-16 20:02:56

Hi Eric,

Cut-n-paste the following code into a PRG and execute it. If will prompt you to select an image file and then display the properties GDI+ can retrieve into a grid. Hopefully this will give you what you're looking for. NOTE: This example relies on the _gdiplus.vcx that comes with Visual FoxPro.

CODE

PUBLIC oform1

oform1=NEWOBJECT("form1")
oform1.Show
RETURN

DEFINE CLASS form1 AS form

    Top = 0
    Left = 17
    Height = 350
    Width = 400
    DoCreate = .T.
    Caption = "Get Image Properties (EXIF)"
    Name = "Form1"

    ADD OBJECT grid1 AS grid WITH ;
        Anchor = 14, ;
        Height = 351, ;
        Left = 0, ;
        Top = 0, ;
        Width = 400, ;
        Name = "Grid1"

    PROCEDURE createpropertycursor
        CREATE CURSOR crsProps (PropName C(50), IDValue I)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsVer", 0x0000)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsLatitudeRef", 0x0001)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsLatitude", 0x0002)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsLongitudeRef", 0x0003)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsLongitude", 0x0004)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsAltitudeRef", 0x0005)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsAltitude", 0x0006)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsGpsTime", 0x0007)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsGpsSatellites", 0x0008)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsGpsStatus", 0x0009)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsGpsMeasureMode", 0x000A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsGpsDop", 0x000B)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsSpeedRef", 0x000C)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsSpeed", 0x000D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsTrackRef", 0x000E)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsTrack", 0x000F)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsImgDirRef", 0x0010)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsImgDir", 0x0011)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsMapDatum", 0x0012)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsDestLatRef", 0x0013)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsDestLat", 0x0014)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsDestLongRef", 0x0015)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsDestLong", 0x0016)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsDestBearRef", 0x0017)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsDestBear", 0x0018)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsDestDistRef", 0x0019)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsDestDist", 0x001A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagNewSubfileType", 0x00FE)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagSubfileType", 0x00FF)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagImageWidth", 0x0100)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagImageHeight", 0x0101)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagBitsPerSample", 0x0102)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagCompression", 0x0103)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPhotometricInterp", 0x0106)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThreshHolding", 0x0107)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagCellWidth", 0x0108)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagCellHeight", 0x0109)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagFillOrder", 0x010A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagDocumentName", 0x010D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagImageDescription", 0x010E)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagEquipMake", 0x010F)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagEquipModel", 0x0110)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagStripOffsets", 0x0111)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagOrientation", 0x0112)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagSamplesPerPixel", 0x0115)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagRowsPerStrip", 0x0116)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagStripBytesCount", 0x0117)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagMinSampleValue", 0x0118)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagMaxSampleValue", 0x0119)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagXResolution", 0x011A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagYResolution", 0x011B)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPlanarConfig", 0x011C)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPageName", 0x011D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagXPosition", 0x011E)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagYPosition", 0x011F)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagFreeOffset", 0x0120)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagFreeByteCounts", 0x0121)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGrayResponseUnit", 0x0122)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGrayResponseCurve", 0x0123)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagT4Option", 0x0124)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagT6Option", 0x0125)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagResolutionUnit", 0x0128)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPageNumber", 0x0129)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagTransferFunction", 0x012D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagSoftwareUsed", 0x0131)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagDateTime", 0x0132)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagArtist", 0x013B)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagHostComputer", 0x013C)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPredictor", 0x013D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagWhitePoint", 0x013E)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPrimaryChromaticities", 0x013F)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagColorMap", 0x0140)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagHalftoneHints", 0x0141)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagTileWidth", 0x0142)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagTileLength", 0x0143)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagTileOffset", 0x0144)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagTileByteCounts", 0x0145)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagInkSet", 0x014C)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagInkNames", 0x014D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagNumberOfInks", 0x014E)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagDotRange", 0x0150)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagTargetPrinter", 0x0151)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExtraSamples", 0x0152)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagSampleFormat", 0x0153)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagSMinSampleValue", 0x0154)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagSMaxSampleValue", 0x0155)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagTransferRange", 0x0156)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGProc", 0x0200)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGInterFormat", 0x0201)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGInterLength", 0x0202)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGRestartInterval", 0x0203)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGLosslessPredictors", 0x0205)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGPointTransforms", 0x0206)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGQTables", 0x0207)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGDCTables", 0x0208)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGACTables", 0x0209)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagYCbCrCoefficients", 0x0211)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagYCbCrSubsampling", 0x0212)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagYCbCrPositioning", 0x0213)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagREFBlackWhite", 0x0214)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGamma", 0x0301)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagICCProfileDescriptor", 0x0302)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagSRGBRenderingIntent", 0x0303)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagImageTitle", 0x0320)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagResolutionXUnit", 0x5001)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagResolutionYUnit", 0x5002)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagResolutionXLengthUnit", 0x5003)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagResolutionYLengthUnit", 0x5004)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPrintFlags", 0x5005)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPrintFlagsVersion", 0x5006)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPrintFlagsCrop", 0x5007)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPrintFlagsBleedWidth", 0x5008)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPrintFlagsBleedWidthScale", 0x5009)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagHalftoneLPI", 0x500A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagHalftoneLPIUnit", 0x500B)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagHalftoneDegree", 0x500C)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagHalftoneShape", 0x500D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagHalftoneMisc", 0x500E)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagHalftoneScreen", 0x500F)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagJPEGQuality", 0x5010)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGridSize", 0x5011)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailFormat", 0x5012)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailWidth", 0x5013)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailHeight", 0x5014)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailColorDepth", 0x5015)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailPlanes", 0x5016)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailRawBytes", 0x5017)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailSize", 0x5018)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailCompressedSize", 0x5019)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagColorTransferFunction", 0x501A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailData", 0x501B)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailImageWidth", 0x5020)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailImageHeight", 0x5021)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailBitsPerSample", 0x5022)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailCompression", 0x5023)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailPhotometricInterp", 0x5024)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailImageDescription", 0x5025)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailEquipMake", 0x5026)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailEquipModel", 0x5027)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailStripOffsets", 0x5028)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailOrientation", 0x5029)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailSamplesPerPixel", 0x502A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailRowsPerStrip", 0x502B)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailStripBytesCount", 0x502C)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailResolutionX", 0x502D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailResolutionY", 0x502E)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailPlanarConfig", 0x502F)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailResolutionUnit", 0x5030)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailTransferFunction", 0x5031)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailSoftwareUsed", 0x5032)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailDateTime", 0x5033)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailArtist", 0x5034)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailWhitePoint", 0x5035)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailPrimaryChromaticities", 0x5036)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailYCbCrCoefficients", 0x5037)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailYCbCrSubsampling", 0x5038)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailYCbCrPositioning", 0x5039)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailRefBlackWhite", 0x503A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagThumbnailCopyRight", 0x503B)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagLuminanceTable", 0x5090)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagChrominanceTable", 0x5091)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagFrameDelay", 0x5100)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagLoopCount", 0x5101)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGlobalPalette", 0x5102)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagIndexBackground", 0x5103)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagIndexTransparent", 0x5104)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPixelUnit", 0x5110)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPixelPerUnitX", 0x5111)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPixelPerUnitY", 0x5112)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagPaletteHistogram", 0x5113)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagCopyright", 0x8298)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifExposureTime", 0x829A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFNumber", 0x829D)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifIFD", 0x8769)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagICCProfile", 0x8773)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifExposureProg", 0x8822)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifSpectralSense", 0x8824)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagGpsIFD", 0x8825)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifISOSpeed", 0x8827)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifOECF", 0x8828)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifVer", 0x9000)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifDTOrig", 0x9003)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifDTDigitized", 0x9004)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifCompConfig", 0x9101)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifCompBPP", 0x9102)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifShutterSpeed", 0x9201)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifAperture", 0x9202)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifBrightness", 0x9203)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifExposureBias", 0x9204)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifMaxAperture", 0x9205)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifSubjectDist", 0x9206)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifMeteringMode", 0x9207)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifLightSource", 0x9208)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFlash", 0x9209)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFocalLength", 0x920A)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifMakerNote", 0x927C)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifUserComment", 0x9286)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifDTSubsec", 0x9290)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifDTOrigSS", 0x9291)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifDTDigSS", 0x9292)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFPXVer", 0xA000)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifColorSpace", 0xA001)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifPixXDim", 0xA002)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifPixYDim", 0xA003)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifRelatedWav", 0xA004)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifInterop", 0xA005)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFlashEnergy", 0xA20B)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifSpatialFR", 0xA20C)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFocalXRes", 0xA20E)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFocalYRes", 0xA20F)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFocalResUnit", 0xA210)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifSubjectLoc", 0xA214)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifExposureIndex", 0xA215)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifSensingMethod", 0xA217)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifFileSource", 0xA300)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifSceneType", 0xA301)
        INSERT INTO crsProps (PropName, IDValue) values("PropertyTagExifCfaPattern", 0xA302)
        INDEX ON IDValue TO IDValue
    ENDPROC

    PROCEDURE retrievepropname
        LPARAMETERS tnPropertyID
        LOCAL lcReturn
        lcReturn = "Unknown"
        IF SEEK(tnPropertyID, "crsProps", "IDValue")
            lcReturn = crsProps.PropName<

eric43 (Programmer) · Answer 6 · 2006-01-16 20:31:46

Hi Craig,

That's clearly what I would like to do BUT I did say in VFP 6.

I have Gdiplus.dll but not the vcx.

Is there any way I can use this?

many thanks

Eric

craigsboyd (IS/IT--Management) · Answer 7 · 2006-01-16 23:19:51

Eric,

OK, I would like to encourage you to upgrade to VFP9. It's well worth the price of admission. smile

Having said that, here's the converted code that should work in VFP 6.

CODE

PUBLIC oform1

oform1=NEWOBJECT("form1")
oform1.SHOW
RETURN

DEFINE CLASS form1 AS FORM

    TOP = 0
    LEFT = 17
    HEIGHT = 350
    WIDTH = 400
    DOCREATE = .T.
    CAPTION = "Get Image Properties (EXIF)"
    NAME = "Form1"
    gpImageHandle = 0

    ADD OBJECT grid1 AS GRID WITH ;
        ANCHOR = 14, ;
        HEIGHT = 351, ;
        LEFT = 0, ;
        TOP = 0, ;
        WIDTH = 400, ;
        NAME = "Grid1"

    PROCEDURE createpropertycursor
        CREATE CURSOR crsProps (PropName C(50), IDValue I)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsVer", 0x0000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLatitudeRef", 0x0001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLatitude", 0x0002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLongitudeRef", 0x0003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLongitude", 0x0004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsAltitudeRef", 0x0005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsAltitude", 0x0006)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsTime", 0x0007)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsSatellites", 0x0008)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsStatus", 0x0009)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsMeasureMode", 0x000A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsDop", 0x000B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsSpeedRef", 0x000C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsSpeed", 0x000D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsTrackRef", 0x000E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsTrack", 0x000F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsImgDirRef", 0x0010)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsImgDir", 0x0011)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsMapDatum", 0x0012)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLatRef", 0x0013)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLat", 0x0014)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLongRef", 0x0015)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLong", 0x0016)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestBearRef", 0x0017)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestBear", 0x0018)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestDistRef", 0x0019)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestDist", 0x001A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagNewSubfileType", 0x00FE)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSubfileType", 0x00FF)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageWidth", 0x0100)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageHeight", 0x0101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagBitsPerSample", 0x0102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCompression", 0x0103)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPhotometricInterp", 0x0106)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThreshHolding", 0x0107)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCellWidth", 0x0108)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCellHeight", 0x0109)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFillOrder", 0x010A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDocumentName", 0x010D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageDescription", 0x010E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagEquipMake", 0x010F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagEquipModel", 0x0110)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagStripOffsets", 0x0111)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagOrientation", 0x0112)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSamplesPerPixel", 0x0115)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagRowsPerStrip", 0x0116)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagStripBytesCount", 0x0117)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagMinSampleValue", 0x0118)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagMaxSampleValue", 0x0119)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagXResolution", 0x011A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYResolution", 0x011B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPlanarConfig", 0x011C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPageName", 0x011D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagXPosition", 0x011E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYPosition", 0x011F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFreeOffset", 0x0120)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFreeByteCounts", 0x0121)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGrayResponseUnit", 0x0122)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGrayResponseCurve", 0x0123)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagT4Option", 0x0124)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagT6Option", 0x0125)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionUnit", 0x0128)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPageNumber", 0x0129)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTransferFunction", 0x012D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSoftwareUsed", 0x0131)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDateTime", 0x0132)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagArtist", 0x013B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHostComputer", 0x013C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPredictor", 0x013D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagWhitePoint", 0x013E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrimaryChromaticities", 0x013F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagColorMap", 0x0140)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneHints", 0x0141)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileWidth", 0x0142)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileLength", 0x0143)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileOffset", 0x0144)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileByteCounts", 0x0145)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagInkSet", 0x014C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagInkNames", 0x014D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagNumberOfInks", 0x014E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDotRange", 0x0150)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTargetPrinter", 0x0151)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExtraSamples", 0x0152)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSampleFormat", 0x0153)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSMinSampleValue", 0x0154)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSMaxSampleValue", 0x0155)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTransferRange", 0x0156)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGProc", 0x0200)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGInterFormat", 0x0201)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGInterLength", 0x0202)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGRestartInterval", 0x0203)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGLosslessPredictors", 0x0205)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGPointTransforms", 0x0206)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGQTables", 0x0207)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGDCTables", 0x0208)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGACTables", 0x0209)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrCoefficients", 0x0211)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrSubsampling", 0x0212)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrPositioning", 0x0213)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagREFBlackWhite", 0x0214)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGamma", 0x0301)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagICCProfileDescriptor", 0x0302)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSRGBRenderingIntent", 0x0303)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageTitle", 0x0320)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionXUnit", 0x5001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionYUnit", 0x5002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionXLengthUnit", 0x5003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionYLengthUnit", 0x5004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlags", 0x5005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsVersion", 0x5006)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsCrop", 0x5007)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsBleedWidth", 0x5008)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsBleedWidthScale", 0x5009)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneLPI", 0x500A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneLPIUnit", 0x500B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneDegree", 0x500C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneShape", 0x500D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneMisc", 0x500E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneScreen", 0x500F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGQuality", 0x5010)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGridSize", 0x5011)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailFormat", 0x5012)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailWidth", 0x5013)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailHeight", 0x5014)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailColorDepth", 0x5015)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPlanes", 0x5016)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRawBytes", 0x5017)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSize", 0x5018)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCompressedSize", 0x5019)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagColorTransferFunction", 0x501A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailData", 0x501B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageWidth", 0x5020)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageHeight", 0x5021)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailBitsPerSample", 0x5022)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCompression", 0x5023)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPhotometricInterp", 0x5024)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageDescription", 0x5025)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailEquipMake", 0x5026)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailEquipModel", 0x5027)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailStripOffsets", 0x5028)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailOrientation", 0x5029)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSamplesPerPixel", 0x502A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRowsPerStrip", 0x502B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailStripBytesCount", 0x502C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionX", 0x502D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionY", 0x502E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPlanarConfig", 0x502F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionUnit", 0x5030)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailTransferFunction", 0x5031)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSoftwareUsed", 0x5032)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailDateTime", 0x5033)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailArtist", 0x5034)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailWhitePoint", 0x5035)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPrimaryChromaticities", 0x5036)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrCoefficients", 0x5037)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrSubsampling", 0x5038)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrPositioning", 0x5039)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRefBlackWhite", 0x503A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCopyRight", 0x503B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagLuminanceTable", 0x5090)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagChrominanceTable", 0x5091)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFrameDelay", 0x5100)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagLoopCount", 0x5101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGlobalPalette", 0x5102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagIndexBackground", 0x5103)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagIndexTransparent", 0x5104)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelUnit", 0x5110)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelPerUnitX", 0x5111)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelPerUnitY", 0x5112)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPaletteHistogram", 0x5113)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCopyright", 0x8298)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureTime", 0x829A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFNumber", 0x829D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifIFD", 0x8769)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagICCProfile", 0x8773)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureProg", 0x8822)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSpectralSense", 0x8824)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsIFD", 0x8825)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifISOSpeed", 0x8827)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifOECF", 0x8828)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifVer", 0x9000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTOrig", 0x9003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTDigitized", 0x9004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCompConfig", 0x9101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCompBPP", 0x9102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifShutterSpeed", 0x9201)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifAperture", 0x9202)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifBrightness", 0x9203)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureBias", 0x9204)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMaxAperture", 0x9205)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSubjectDist", 0x9206)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMeteringMode", 0x9207)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifLightSource", 0x9208)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFlash", 0x9209)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalLength", 0x920A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMakerNote", 0x927C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifUserComment", 0x9286)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTSubsec", 0x9290)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTOrigSS", 0x9291)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTDigSS", 0x9292)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFPXVer", 0xA000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifColorSpace", 0xA001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifPixXDim", 0xA002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifPixYDim", 0xA003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifRelatedWav", 0xA004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifInterop", 0xA005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFlashEnergy", 0xA20B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSpatialFR", 0xA20C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalXRes", 0xA20E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalYRes", 0xA20F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalResUnit", 0xA210)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSubjectLoc", 0xA214)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureIndex", 0xA215)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSensingMethod", 0xA217)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFileSource", 0xA300)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSceneType", 0xA301)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCfaPattern", 0xA302)
        INDEX ON IDValue TO IDValue
    ENDPROC

    PROCEDURE retrievepropname
        LPARAMETERS tnPropertyID
        LOCAL lcReturn
        lcReturn = "Unknown"
        IF SEEK(tnPropertyID, "crsProps", "IDValue")
            lcReturn = crsPr

eric43 (Programmer) · Answer 8 · 2006-01-17 00:31:40

Craig,

Thank you very much - there are reasons I'm still with VFP 6.

with the code

CODE

*************************
    FUNCTION GGetImageHandle(tcFilename)
*************************
        LOCAL lnHandle
        m.lnHandle = 0
        GdipLoadImageFromFile(STRCONV(m.tcFilename + CHR(0), 5), @m.lnHandle)
        RETURN m.lnHandle
    ENDFUNC

Unfortunately I get this error on the GdipLoadImageFromFile line

Regards

Eric

Declare DLL call caused an exception

craigsboyd (IS/IT--Management) · Answer 9 · 2006-01-17 01:45:31

Eric,

I seemed to have missed the STRCONV(). Sorry about that. Here is what the equivalent would be in Visual FoxPro 6.0.

CODE

GdipLoadImageFromFile(a2u(m.tcFilename + CHR(0)), @m.lnHandle)

******************************
FUNCTION a2u(cText)
******************************
*!* http://www.news2news.com/vfp/?example=14&function=488
******************************
    DECLARE INTEGER WideCharToMultiByte IN kernel32;
        INTEGER CodePg, INTEGER dwFlags,;
        STRING lpWideCharStr, INTEGER cchWideChar,;
        STRING @lpMultiByteStr, INTEGER cbMultiByte,;
        STRING lpDefaultChar, INTEGER lpUsedDefaultChar

    DECLARE INTEGER MultiByteToWideChar IN kernel32;
        INTEGER CodePage, LONG dwFlags, STRING lpMultiByteStr,;
        INTEGER cbMultiByte, STRING @lpWCharStr, INTEGER cchWChar

    LOCAL lcBuffer, lnBufsize

    * first calling to define required buffer size
    lcBuffer = ""
    lnBufsize = MultiByteToWideChar(0, 1,;
        cText, Len(cText), @lcBuffer, 0)

    lcBuffer = Repli(Chr(0), lnBufsize*2)  && in wide chars
    = MultiByteToWideChar(0, 1,;
        cText, Len(cText), @lcBuffer, lnBufsize)
RETURN lcBuffer

SweetPotato Software Website
My Blog

eric43 (Programmer) · Answer 10 · 2006-01-18 01:31:44

Craig,

I now get an error

I renamed the a2u Function for clarity.

vfp declare dll caused an exception

at GdipLoadImageFromFile(stringconvert(m.tcFilename+ CHR(0)), @m.lnHandle)

I've looked at the site U sent and it looks Ok but the parameters being passed are not correct.

Any ideas please?

Eric

eric43 (Programmer) · Answer 11 · 2006-01-18 02:05:22

Craig - oops I see the bracket missing but I still get an error there

craigsboyd (IS/IT--Management) · Answer 12 · 2006-01-22 16:56:00

eric43,

Can you give me more information on the error you are getting (such as the error number, the error message, etc.)? It is always a good idea to provide this sort of information when asking for help with an error. Also, did you make StringConvert() a standalone function or did you add it to the form in the code above? If so then you would need to use this.stringconvert to call it.

To perhaps save us both some time I should have just posted the entire thing with the a2u function integrated into it. So here is the code again:

CODE

PUBLIC oform1

oform1=NEWOBJECT("form1")
oform1.SHOW
RETURN

DEFINE CLASS form1 AS FORM

    TOP = 0
    LEFT = 17
    HEIGHT = 350
    WIDTH = 400
    DOCREATE = .T.
    CAPTION = "Get Image Properties (EXIF)"
    NAME = "Form1"
    gpImageHandle = 0

    ADD OBJECT grid1 AS GRID WITH ;
        ANCHOR = 14, ;
        HEIGHT = 351, ;
        LEFT = 0, ;
        TOP = 0, ;
        WIDTH = 400, ;
        NAME = "Grid1"

*************************
    PROCEDURE createpropertycursor
*************************
        CREATE CURSOR crsProps (PropName C(50), IDValue I)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsVer", 0x0000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLatitudeRef", 0x0001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLatitude", 0x0002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLongitudeRef", 0x0003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLongitude", 0x0004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsAltitudeRef", 0x0005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsAltitude", 0x0006)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsTime", 0x0007)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsSatellites", 0x0008)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsStatus", 0x0009)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsMeasureMode", 0x000A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsDop", 0x000B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsSpeedRef", 0x000C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsSpeed", 0x000D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsTrackRef", 0x000E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsTrack", 0x000F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsImgDirRef", 0x0010)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsImgDir", 0x0011)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsMapDatum", 0x0012)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLatRef", 0x0013)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLat", 0x0014)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLongRef", 0x0015)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLong", 0x0016)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestBearRef", 0x0017)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestBear", 0x0018)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestDistRef", 0x0019)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestDist", 0x001A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagNewSubfileType", 0x00FE)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSubfileType", 0x00FF)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageWidth", 0x0100)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageHeight", 0x0101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagBitsPerSample", 0x0102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCompression", 0x0103)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPhotometricInterp", 0x0106)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThreshHolding", 0x0107)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCellWidth", 0x0108)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCellHeight", 0x0109)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFillOrder", 0x010A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDocumentName", 0x010D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageDescription", 0x010E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagEquipMake", 0x010F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagEquipModel", 0x0110)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagStripOffsets", 0x0111)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagOrientation", 0x0112)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSamplesPerPixel", 0x0115)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagRowsPerStrip", 0x0116)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagStripBytesCount", 0x0117)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagMinSampleValue", 0x0118)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagMaxSampleValue", 0x0119)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagXResolution", 0x011A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYResolution", 0x011B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPlanarConfig", 0x011C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPageName", 0x011D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagXPosition", 0x011E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYPosition", 0x011F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFreeOffset", 0x0120)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFreeByteCounts", 0x0121)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGrayResponseUnit", 0x0122)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGrayResponseCurve", 0x0123)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagT4Option", 0x0124)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagT6Option", 0x0125)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionUnit", 0x0128)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPageNumber", 0x0129)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTransferFunction", 0x012D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSoftwareUsed", 0x0131)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDateTime", 0x0132)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagArtist", 0x013B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHostComputer", 0x013C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPredictor", 0x013D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagWhitePoint", 0x013E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrimaryChromaticities", 0x013F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagColorMap", 0x0140)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneHints", 0x0141)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileWidth", 0x0142)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileLength", 0x0143)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileOffset", 0x0144)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileByteCounts", 0x0145)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagInkSet", 0x014C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagInkNames", 0x014D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagNumberOfInks", 0x014E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDotRange", 0x0150)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTargetPrinter", 0x0151)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExtraSamples", 0x0152)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSampleFormat", 0x0153)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSMinSampleValue", 0x0154)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSMaxSampleValue", 0x0155)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTransferRange", 0x0156)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGProc", 0x0200)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGInterFormat", 0x0201)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGInterLength", 0x0202)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGRestartInterval", 0x0203)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGLosslessPredictors", 0x0205)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGPointTransforms", 0x0206)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGQTables", 0x0207)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGDCTables", 0x0208)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGACTables", 0x0209)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrCoefficients", 0x0211)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrSubsampling", 0x0212)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrPositioning", 0x0213)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagREFBlackWhite", 0x0214)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGamma", 0x0301)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagICCProfileDescriptor", 0x0302)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSRGBRenderingIntent", 0x0303)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageTitle", 0x0320)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionXUnit", 0x5001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionYUnit", 0x5002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionXLengthUnit", 0x5003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionYLengthUnit", 0x5004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlags", 0x5005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsVersion", 0x5006)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsCrop", 0x5007)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsBleedWidth", 0x5008)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsBleedWidthScale", 0x5009)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneLPI", 0x500A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneLPIUnit", 0x500B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneDegree", 0x500C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneShape", 0x500D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneMisc", 0x500E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneScreen", 0x500F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGQuality", 0x5010)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGridSize", 0x5011)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailFormat", 0x5012)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailWidth", 0x5013)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailHeight", 0x5014)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailColorDepth", 0x5015)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPlanes", 0x5016)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRawBytes", 0x5017)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSize", 0x5018)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCompressedSize", 0x5019)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagColorTransferFunction", 0x501A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailData", 0x501B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageWidth", 0x5020)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageHeight", 0x5021)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailBitsPerSample", 0x5022)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCompression", 0x5023)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPhotometricInterp", 0x5024)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageDescription", 0x5025)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailEquipMake", 0x5026)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailEquipModel", 0x5027)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailStripOffsets", 0x5028)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailOrientation", 0x5029)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSamplesPerPixel", 0x502A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRowsPerStrip", 0x502B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailStripBytesCount", 0x502C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionX", 0x502D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionY", 0x502E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPlanarConfig", 0x502F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionUnit", 0x5030)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailTransferFunction", 0x5031)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSoftwareUsed", 0x5032)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailDateTime", 0x5033)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailArtist", 0x5034)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailWhitePoint", 0x5035)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPrimaryChromaticities", 0x5036)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrCoefficients", 0x5037)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrSubsampling", 0x5038)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrPositioning", 0x5039)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRefBlackWhite", 0x503A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCopyRight", 0x503B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagLuminanceTable", 0x5090)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagChrominanceTable", 0x5091)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFrameDelay", 0x5100)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagLoopCount", 0x5101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGlobalPalette", 0x5102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagIndexBackground", 0x5103)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagIndexTransparent", 0x5104)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelUnit", 0x5110)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelPerUnitX", 0x5111)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelPerUnitY", 0x5112)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPaletteHistogram", 0x5113)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCopyright", 0x8298)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureTime", 0x829A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFNumber", 0x829D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifIFD", 0x8769)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagICCProfile", 0x8773)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureProg", 0x8822)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSpectralSense", 0x8824)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsIFD", 0x8825)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifISOSpeed", 0x8827)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifOECF", 0x8828)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifVer", 0x9000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTOrig", 0x9003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTDigitized", 0x9004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCompConfig", 0x9101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCompBPP", 0x9102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifShutterSpeed", 0x9201)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifAperture", 0x9202)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifBrightness", 0x9203)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureBias", 0x9204)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMaxAperture", 0x9205)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSubjectDist", 0x9206)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMeteringMode", 0x9207)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifLightSource", 0x9208)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFlash", 0x9209)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalLength", 0x920A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMakerNote", 0x927C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifUserComment", 0x9286)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTSubsec", 0x9290)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTOrigSS", 0x9291)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTDigSS", 0x9292)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFPXVer", 0xA000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifColorSpace", 0xA001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifPixXDim", 0xA002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifPixYDim", 0xA003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifRelatedWav", 0xA004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifInterop", 0xA005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFlashEnergy", 0xA20B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSpatialFR", 0xA20C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalXRes", 0xA20E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalYRes", 0xA20F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalResUnit", 0xA210)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSubjectLoc", 0xA214)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureIndex", 0xA215)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSensingMethod", 0xA217)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFileSource", 0xA300)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSceneType", 0xA301)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCfaPattern", 0xA302)
        INDEX ON IDValue TO IDValue
    ENDPROC

*************************
    PROCEDURE retrievepropname
*************************

eric43 (Programmer) · Answer 13 · 2006-01-22 18:33:39

Craig,

Thanks for your continued interest.

I did have stringconvert() as a separate prg file.

I pasted your new code directly into a prg and ran it.

I got the

Program Error
Declare DLL caused an exception at the line

GdipLoadImageFromFile(THIS.a2u(m.tcFilename + CHR(0)), @m.lnHandle)

This is pretty much what I said before - there is no error number shown.

Regards

Eric

craigsboyd (IS/IT--Management) · Answer 14 · 2006-01-22 20:15:14

eric43,

All I can think of is that GDI+ is choking on the image you are trying to load. Try it with some other images, such as the ones that come with Visual FoxPro.

I'm not sure what you're running into here. The declare and what a2u return is correct, so the only thing I can guess is that GDI+ is unable to load the image and return an image handle for you.

I really don't have much else to offer in way of code or additional ways to fix this. If GDI+ is choking on your images then even upgrading to Visual FoxPro 9.0 wouldn't help you with this. The VFP code I have posted is now completely compatible with Visual FoxPro 6.0. Sorry, I'm out of ideas.

SweetPotato Software Website
My Blog

eric43 (Programmer) · Answer 15 · 2006-01-22 20:33:17

Craig,

As I had picked a particular image each time, I tried another from my recent photography but no luck - still the same error. I aslo tried fox.bmp.

Is this code completely stand alone? Is there anything else that you think I am doing and may not be?

Is registering the dll needed?

Thank you for all your help in this quest.

Regards

Eric

craigsboyd (IS/IT--Management) · Answer 16 · 2006-01-23 20:15:19

Sorry Eric, I'm all out of ideas. Usually a Declare error like you are getting has to do with the way the DLL function was declared, but the code that I posted above can be copied and pasted into a prg and run just the way it is. Assuming that the code is exactly as it appears in my post, there shouldn't be any errors, even in Visual FoxPro 6.

Does anyone else (beside Eric) have a copy of VFP 6.0 still installed that they could run the above code with and report back if they are seeing the same problem as Eric? I'd appreciate it, thanks.

SweetPotato Software Website
My Blog

craigsboyd (IS/IT--Management) · Answer 17 · 2006-01-23 20:19:29

Eric,

What version of the GDIPlus.dll do you have on that system? Also, is the GDIPlus.dll somewhere along the PATH of your system so that VFP can find it? Lastly, just to answer one of your questions... neither GDIPlus.dll or Kernel32.dll need to be registered. They are C DLLs as opposed to COM DLLs.

SweetPotato Software Website
My Blog

eric43 (Programmer) · Answer 18 · 2006-01-23 21:07:06

Hi Craig

My GdiPluss.dll is Version 5.1.3102.2180 and I have a copy of it in the app Home folder. 4 Aug 2004 1,672 Kb

Regards

Eric

eric43 (Programmer) · Answer 19 · 2006-01-23 21:15:50

Tried Version 5.1.3102.1360 from Dll-files Same result

Eric

Neil Toulouse (Programmer) · Answer 20 · 2006-01-24 07:28:38

I get the same error as Eric, same DLL version (5.1.3102.2180). VFP6 on XP pro.

I like work. It fascinates me. I can sit and look at it for hours...

craigsboyd (IS/IT--Management) · Answer 21 · 2006-01-24 14:23:51

Thanks eric43 and FatSlug. OK, when the a2u function returns, is it returning a Unicode string? What you should see is a string that looks like it has little boxes in-between each of the letters.

SweetPotato Software Website
My Blog

eric43 (Programmer) · Answer 22 · 2006-01-24 20:14:51

Craig,

Relieved its not only my problem.

lcBuffer in a2u is a 'spaced out' filename - I guess this is unicode - but no little boxes shown.

'O F F I C E . J P G ' FOR EXAMPLE

Eric

Neil Toulouse (Programmer) · Answer 23 · 2006-01-25 03:56:36

...and I get the same as Eric. No boxes but a spaced out filename.

I like work. It fascinates me. I can sit and look at it for hours...

Olaf Doschke (Programmer) · Answer 24 · 2006-01-25 06:23:18

Hi Craig, Neil, Eric,

Try this as a replacement of a2u():

CODE

    PROTECTED Function a2u(tcStr)
#if Version(5) >= 700
        Return Strconv(tcStr + Chr(0), 5)
#else
        Local lnLen, lcWideStr
        lnLen = 2 * (Len(tcStr) + 1)
        lcWideStr = Replicate(Chr(0), lnLen)
        MultiByteToWideChar(0, 0, @tcStr, Len(tcStr), @lcWideStr, lnLen)
        Return lcWideStr
#endif
    ENDFUNC

I think it's important to initialise the Unicodestring-Buffer with chr(0).

Bye, Olaf.

Olaf Doschke (Programmer) · Answer 25 · 2006-01-25 06:26:57

Hi again,

please remove the PROTECTED keyword. this function was stolen fram a class...

Bye, Olaf.

Neil Toulouse (Programmer) · Answer 26 · 2006-01-25 07:47:45

Hi Olaf!

On my system it still has the same problem, spaced out return value and the same DLL error message.

Neil

I like work. It fascinates me. I can sit and look at it for hours...

Olaf Doschke (Programmer) · Answer 27 · 2006-01-25 08:52:56

Hi all,

I found it: There is no GdiplusStartup (and Shutdown).

You need these 2 declares:

CODE

Declare Long GdiplusStartup in GdiPlus.dll ;
Long @ token, String @ input, Long @ output

Declare Long GdiplusShutdown in GdiPlus.dll ;
Long token

The class needs a gdiplusToken property and then use the Startup/Shutdown API calls this way:

CODE

    PROCEDURE GdipStartup()

          Local gdiplusStartupInput, lcToken
    *    struct GdiplusStartupInput
    *    {
    *        UINT32 GdiplusVersion;                // Must be 1
    *        DebugEventProc DebugEventCallback;    // Ignored on free builds
    *        BOOL SuppressBackgroundThread;        // FALSE unless you're prepared to call
    *                                            // the hook/unhook functions properly
    *        BOOL SuppressExternalCodecs;        // FALSE unless you want GDI+ only to use
    *                                            // its internal image codecs.
    *    }
        gdiplusStartupInput = Chr(1) + Replicate(Chr(0), 15)    && GdiplusStartupInput structure (sizeof = 16)

        * Initialize GDI+.
        lcToken = 0
        If GdiplusStartup(@lcToken, @gdiplusStartupInput, 0) != 0
            Return .F.
        EndIf
        This.gdiplusToken = lcToken

    ENDPROC

    PROCEDURE GdipShutdown()
       GdiplusShutdown(This.gdiplusToken)
    ENDPROC

You can call GdipStartup() from class Init() and GdipShutdown() from Destroy.

The next call causing a problem for me is GdipGetPropertyCount. I haven't found out the reason yet.

Bye, Olaf.

Olaf Doschke (Programmer) · Answer 28 · 2006-01-25 09:03:25

Hi all,

It works (in VFP7). I just needed to restart.

Here are the last changes:

CODE

*************************
    PROCEDURE fillpropertygrid
*************************
        WITH THIS
            .createpropertycursor()
            .getimageproperties()
            .grid1.RECORDSOURCE = "crsEXIF"
            .grid1.REFRESH()
            * .grid1.AUTOFIT()
        ENDWITH
    ENDPROC

*************************
    PROCEDURE INIT
*************************
        LOCAL lcImageFile
        lcImageFile = GETPICT()
        IF EMPTY(lcImageFile)
           RETURN .F.
        ENDIF
        THIS.DeclareAPIs()
        IF This.GdipStartup()
           THIS.gpImageHandle = THIS.GGetImageHandle(lcImageFile)
           THIS.fillpropertygrid()
        ELSE
           RETURN .F.
        ENDIF
    ENDPROC

*************************
    PROCEDURE DESTROY
*************************
        This.GdipShutdown()
        USE IN SELECT("crsProps")
        USE IN SELECT("crsEXIF")
    ENDPROC

And don't forget the token property:

CODE

DEFINE CLASS form1 AS FORM

    gdiplusToken = ''
    TOP = 0
    LEFT = 17
* ...

Bye, Olaf.

Neil Toulouse (Programmer) · Answer 29 · 2006-01-25 09:36:47

Hi Olaf!

Seems like Eric has given up with this! Anyway, I have made the changes specified, and I no longer get the error, BUT nothing is appearing in the grid.

Just in case I have done something wrong, could you post the complete code please!

Neil

I like work. It fascinates me. I can sit and look at it for hours...

Olaf Doschke (Programmer) · Answer 30 · 2006-01-25 10:56:36

Hi Neil,

I think everything's fine with the code. Only there are little Exif informations. I also get no records for the foxpro BMPs in the graphics folder. Download the upper left picture on www.universalthread.com (called top1.jpg), there many Exif properties are included.

Nevertheless, here my completed prg:

CODE

PUBLIC oform1

oform1=NEWOBJECT("form1")
oform1.SHOW
RETURN

DEFINE CLASS form1 AS FORM

    gdiplusToken = '
    TOP = 0
    LEFT = 17
    HEIGHT = 350
    WIDTH = 400
    DOCREATE = .T.
    CAPTION = "Get Image Properties (EXIF)"
    NAME = "Form1"
    gpImageHandle = 0


    ADD OBJECT grid1 AS GRID WITH ;
        ANCHOR = 14, ;
        HEIGHT = 351, ;
        LEFT = 0, ;
        TOP = 0, ;
        WIDTH = 400, ;
        NAME = "Grid1"

*************************
    PROCEDURE createpropertycursor
*************************
        CREATE CURSOR crsProps (PropName C(50), IDValue I)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsVer", 0x0000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLatitudeRef", 0x0001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLatitude", 0x0002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLongitudeRef", 0x0003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsLongitude", 0x0004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsAltitudeRef", 0x0005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsAltitude", 0x0006)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsTime", 0x0007)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsSatellites", 0x0008)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsStatus", 0x0009)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsMeasureMode", 0x000A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsGpsDop", 0x000B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsSpeedRef", 0x000C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsSpeed", 0x000D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsTrackRef", 0x000E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsTrack", 0x000F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsImgDirRef", 0x0010)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsImgDir", 0x0011)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsMapDatum", 0x0012)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLatRef", 0x0013)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLat", 0x0014)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLongRef", 0x0015)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestLong", 0x0016)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestBearRef", 0x0017)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestBear", 0x0018)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestDistRef", 0x0019)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsDestDist", 0x001A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagNewSubfileType", 0x00FE)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSubfileType", 0x00FF)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageWidth", 0x0100)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageHeight", 0x0101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagBitsPerSample", 0x0102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCompression", 0x0103)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPhotometricInterp", 0x0106)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThreshHolding", 0x0107)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCellWidth", 0x0108)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCellHeight", 0x0109)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFillOrder", 0x010A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDocumentName", 0x010D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageDescription", 0x010E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagEquipMake", 0x010F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagEquipModel", 0x0110)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagStripOffsets", 0x0111)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagOrientation", 0x0112)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSamplesPerPixel", 0x0115)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagRowsPerStrip", 0x0116)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagStripBytesCount", 0x0117)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagMinSampleValue", 0x0118)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagMaxSampleValue", 0x0119)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagXResolution", 0x011A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYResolution", 0x011B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPlanarConfig", 0x011C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPageName", 0x011D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagXPosition", 0x011E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYPosition", 0x011F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFreeOffset", 0x0120)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFreeByteCounts", 0x0121)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGrayResponseUnit", 0x0122)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGrayResponseCurve", 0x0123)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagT4Option", 0x0124)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagT6Option", 0x0125)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionUnit", 0x0128)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPageNumber", 0x0129)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTransferFunction", 0x012D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSoftwareUsed", 0x0131)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDateTime", 0x0132)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagArtist", 0x013B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHostComputer", 0x013C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPredictor", 0x013D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagWhitePoint", 0x013E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrimaryChromaticities", 0x013F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagColorMap", 0x0140)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneHints", 0x0141)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileWidth", 0x0142)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileLength", 0x0143)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileOffset", 0x0144)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTileByteCounts", 0x0145)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagInkSet", 0x014C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagInkNames", 0x014D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagNumberOfInks", 0x014E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagDotRange", 0x0150)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTargetPrinter", 0x0151)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExtraSamples", 0x0152)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSampleFormat", 0x0153)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSMinSampleValue", 0x0154)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSMaxSampleValue", 0x0155)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagTransferRange", 0x0156)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGProc", 0x0200)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGInterFormat", 0x0201)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGInterLength", 0x0202)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGRestartInterval", 0x0203)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGLosslessPredictors", 0x0205)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGPointTransforms", 0x0206)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGQTables", 0x0207)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGDCTables", 0x0208)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGACTables", 0x0209)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrCoefficients", 0x0211)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrSubsampling", 0x0212)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagYCbCrPositioning", 0x0213)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagREFBlackWhite", 0x0214)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGamma", 0x0301)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagICCProfileDescriptor", 0x0302)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagSRGBRenderingIntent", 0x0303)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagImageTitle", 0x0320)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionXUnit", 0x5001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionYUnit", 0x5002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionXLengthUnit", 0x5003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagResolutionYLengthUnit", 0x5004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlags", 0x5005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsVersion", 0x5006)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsCrop", 0x5007)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsBleedWidth", 0x5008)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPrintFlagsBleedWidthScale", 0x5009)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneLPI", 0x500A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneLPIUnit", 0x500B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneDegree", 0x500C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneShape", 0x500D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneMisc", 0x500E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagHalftoneScreen", 0x500F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagJPEGQuality", 0x5010)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGridSize", 0x5011)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailFormat", 0x5012)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailWidth", 0x5013)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailHeight", 0x5014)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailColorDepth", 0x5015)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPlanes", 0x5016)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRawBytes", 0x5017)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSize", 0x5018)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCompressedSize", 0x5019)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagColorTransferFunction", 0x501A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailData", 0x501B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageWidth", 0x5020)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageHeight", 0x5021)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailBitsPerSample", 0x5022)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCompression", 0x5023)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPhotometricInterp", 0x5024)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailImageDescription", 0x5025)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailEquipMake", 0x5026)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailEquipModel", 0x5027)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailStripOffsets", 0x5028)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailOrientation", 0x5029)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSamplesPerPixel", 0x502A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRowsPerStrip", 0x502B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailStripBytesCount", 0x502C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionX", 0x502D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionY", 0x502E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPlanarConfig", 0x502F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailResolutionUnit", 0x5030)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailTransferFunction", 0x5031)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailSoftwareUsed", 0x5032)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailDateTime", 0x5033)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailArtist", 0x5034)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailWhitePoint", 0x5035)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailPrimaryChromaticities", 0x5036)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrCoefficients", 0x5037)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrSubsampling", 0x5038)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailYCbCrPositioning", 0x5039)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailRefBlackWhite", 0x503A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagThumbnailCopyRight", 0x503B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagLuminanceTable", 0x5090)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagChrominanceTable", 0x5091)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagFrameDelay", 0x5100)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagLoopCount", 0x5101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGlobalPalette", 0x5102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagIndexBackground", 0x5103)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagIndexTransparent", 0x5104)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelUnit", 0x5110)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelPerUnitX", 0x5111)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPixelPerUnitY", 0x5112)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagPaletteHistogram", 0x5113)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagCopyright", 0x8298)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureTime", 0x829A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFNumber", 0x829D)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifIFD", 0x8769)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagICCProfile", 0x8773)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureProg", 0x8822)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSpectralSense", 0x8824)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagGpsIFD", 0x8825)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifISOSpeed", 0x8827)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifOECF", 0x8828)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifVer", 0x9000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTOrig", 0x9003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTDigitized", 0x9004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCompConfig", 0x9101)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCompBPP", 0x9102)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifShutterSpeed", 0x9201)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifAperture", 0x9202)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifBrightness", 0x9203)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureBias", 0x9204)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMaxAperture", 0x9205)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSubjectDist", 0x9206)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMeteringMode", 0x9207)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifLightSource", 0x9208)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFlash", 0x9209)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalLength", 0x920A)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifMakerNote", 0x927C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifUserComment", 0x9286)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTSubsec", 0x9290)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTOrigSS", 0x9291)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifDTDigSS", 0x9292)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFPXVer", 0xA000)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifColorSpace", 0xA001)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifPixXDim", 0xA002)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifPixYDim", 0xA003)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifRelatedWav", 0xA004)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifInterop", 0xA005)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFlashEnergy", 0xA20B)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSpatialFR", 0xA20C)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalXRes", 0xA20E)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalYRes", 0xA20F)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFocalResUnit", 0xA210)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSubjectLoc", 0xA214)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifExposureIndex", 0xA215)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSensingMethod", 0xA217)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifFileSource", 0xA300)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifSceneType", 0xA301)
        INSERT INTO crsProps (PropName, IDValue) VALUES("PropertyTagExifCfaPattern", 0xA302)
        INDEX ON IDValue TO IDValue
    ENDPROC

*************************
    PROCEDURE retrievepropname
*************************
        LPARAMETERS tnPropertyID

Neil Toulouse (Programmer) · Answer 31 · 2006-01-25 11:12:46

Good point, if there is no EXIF data to report on, no values in the grid!

However(!!), STREXTRACT() function does not exist in VFP6 so I have an error a new error.

Neil

I like work. It fascinates me. I can sit and look at it for hours...

Olaf Doschke (Programmer) · Answer 32 · 2006-01-25 11:36:13

Hi Neil,

There is only one occurance of STREXTRACT and it seems rather useless to me, as the GetMemString() Procedure already cares to get rid off and limit the string to the delimiter CHR(0)...

Simply search for "CASE 2 ==" and replace the CASE with:

CODE

CASE 2 == m.lnPropertyTagType
lvReturn = THIS.GetMemString(m.lnValuePtr, m.lnValueLen)

It's located in the GGetPropertyItem Function.

Bye, Olaf.

Neil Toulouse (Programmer) · Answer 33 · 2006-01-25 11:50:16

That's cracked it! Well done mate!

This should be turned into an FAQ methinks, as it could be a useful tool to some.

Eric, you sorted now?

I like work. It fascinates me. I can sit and look at it for hours...

craigsboyd (IS/IT--Management) · Answer 34 · 2006-01-25 15:17:13

Olaf,

Thanks for jumping in and sorting out the remaining problems with this. Great job and Star for you.

SweetPotato Software Website
My Blog

eric43 (Programmer) · Answer 35 · 2006-01-25 20:11:38

Hey Guys,

Jolly well done -I certainly haven't given up on it - its just that we sleep at different times downunder.

Thank you so much for all the effort - to see the final result after 6 months of trying after I first got the idea is truly something.

Stars to all who have helped me. This is the best return I've had amongst the 'hundreds' of questions I have asked in this forum.

And could someone please make a FAQ to help others.

Eric

eric43 (Programmer) · Answer 36 · 2006-01-25 21:15:49

One last question ( promise).

I want to control the width of the two columns in the grid .

Anyone help?

Thanks Eric

eric43 (Programmer) · Answer 37 · 2006-01-25 21:53:21

Belay that last request - I modified the procedure to

CODE

    PROCEDURE fillpropertygrid
*************************
    WITH THIS
        .createpropertycursor()
        .getimageproperties()
        .grid1.RECORDSOURCE = "crsEXIF"

        WITH .grid1.Column1
            .Header1.Caption= 'EXIF'
            .Header1.Backcolor= RGB(255,255,255)
            .Header1.Forecolor = RGB(255,0,0)
            .Header1.FontBold = .t.
            .ReadOnly = .t.
            .Backcolor= RGB(255,255,255)
            .Forecolor = RGB(255,0,0)
            .Width = 300
            .FontBold = .t.
        ENDWITH

        WITH .grid1.Column2
            .Header1.Caption= 'DATA'
            .ReadOnly = .t.
            .Width = 300
        ENDWITH

        .grid1.REFRESH()
* .grid1.AUTOFIT()
    ENDWITH
ENDPROC

Thanks again everyone.

Eric

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