Here is the promised code
Private Sub cmdExportPictures_Click()
' Exports all OLE Pictures to files via MSPAINT
' and keystrokes.
' The original pictures have been dragged and dropped to
' the table to the corresponding matricule (=ID).
On Error GoTo Err_Export_Click
DoCmd.GoToRecord , , acFirst
Dim Matricule As String
Dim ReturnValue
Matricule = "AVALUE"
While Matricule <> ""
Forms!FormElevesImportExportPictures!Matricule.SetFocus
Matricule = Me!Matricule.Text
Forms!FormElevesImportExportPictures!Image.SetFocus
SendKeys "^(c)", True
ReturnValue = Shell("MSPAINT.EXE", 1)
SendKeys "^(v)", True
SendKeys "{ENTER}", True
SendKeys "%fs", True
SendKeys Matricule, True
SendKeys "{Tab}", True
SendKeys "{DOWN}", True
SendKeys "{DOWN}", True
SendKeys "{DOWN}", True
SendKeys "%s", True
SendKeys "%{F4}", True ' Send ALT+F4 to close paint
DoCmd.GoToRecord , , acNext
Wend
Exit_Export_Click:
Exit Sub
Err_Export_Click:
MsgBox Err.Description
Resume Exit_Export_Click
End Sub
Private Sub cmdImport_Click()
' Import Pictures to corresponding Matricules
Dim Matricule As String
Dim Source As String
Dim ReturnValue
Dim BytesRead As Variant, BytesWritten As Variant
Dim Msg As String
Dim db As Database
Dim rstTemp As Recordset
DoCmd.GoToRecord , , acFirst
Matricule = "AVALUE"
While Matricule <> ""
Forms!FormElevesImportExportPictures!Matricule.SetFocus
Matricule = Me!Matricule.Text
' DoCmd.GoToRecord , , acNext
Source = "C:\Documents and Settings\Administrator\My Documents\My Pictures\" & Matricule & ".JPG"
' Open the BLOB table.
Set db = CurrentDb()
Set rstTemp = db.OpenRecordset _
("SELECT * FROM tblEleves WHERE Matricule='" & Matricule & "'", dbOpenDynaset, dbOptimistic)
ReturnValue = ReadBLOB(Source, rstTemp, "Image"
Forms!FormElevesImportExportPictures!Image.SetFocus
DoCmd.GoToRecord , , acNext
Wend
End Sub
Option Compare Database
Const BlockSize = 32768
'**************************************************************
' FUNCTION: ReadBLOB()
'
' PURPOSE:
' Reads a BLOB from a disk file and stores the contents in the
' specified table and field.
'
' PREREQUISITES:
' The specified table with the OLE object field to contain the
' binary data must be opened in Visual Basic code (Access Basic
' code in Microsoft Access 2.0 and earlier) and the correct record
' navigated to prior to calling the ReadBLOB() function.
'
' ARGUMENTS:
' Source - The path and filename of the binary information
' to be read and stored.
' T - The table object to store the data in.
' Field - The OLE object field in table T to store the data in.
'
' RETURN:
' The number of bytes read from the Source file.
'**************************************************************
Public Function ReadBLOB(Source As String, T As Recordset, sField As String)
Dim NumBlocks As Integer, SourceFile As Integer, i As Integer
Dim FileLength As Long, LeftOver As Long
Dim FileData As String
Dim RetVal As Variant
On Error GoTo Err_ReadBLOB
' Open the source file.
SourceFile = FreeFile
Open Source For Binary Access Read As SourceFile
' Get the length of the file.
FileLength = LOF(SourceFile)
If FileLength = 0 Then
ReadBLOB = 0
Exit Function
End If
' Calculate the number of blocks to read and leftover bytes.
NumBlocks = FileLength \ BlockSize
LeftOver = FileLength Mod BlockSize
' SysCmd is used to manipulate status bar meter.
RetVal = SysCmd(acSysCmdInitMeter, "Reading BLOB", FileLength \ 1000)
' Put the record in edit mode.
T.Edit
' Read the leftover data, writing it to the table.
FileData = String$(LeftOver, 32)
Get SourceFile, , FileData
T(sField).AppendChunk (FileData)
RetVal = SysCmd(acSysCmdUpdateMeter, LeftOver / 1000)
' Read the remaining blocks of data, writing them to the table.
FileData = String$(BlockSize, 32)
For i = 1 To NumBlocks
Get SourceFile, , FileData
T(sField).AppendChunk (FileData)
RetVal = SysCmd(acSysCmdUpdateMeter, BlockSize * i / 1000)
Next i
' Update the record and terminate function.
T.Update
RetVal = SysCmd(acSysCmdRemoveMeter)
Close SourceFile
ReadBLOB = FileLength
Exit Function
Err_ReadBLOB:
ReadBLOB = -Err
Exit Function
End Function
'**************************************************************
' FUNCTION: WriteBLOB()
'
' PURPOSE:
' Writes BLOB information stored in the specified table and field
' to the specified disk file.
'
' PREREQUISITES:
' The specified table with the OLE object field containing the
' binary data must be opened in Visual Basic code (Access Basic
' code in Microsoft Access 2.0 or earlier) and the correct
' record navigated to prior to calling the WriteBLOB() function.
'
' ARGUMENTS:
' T - The table object containing the binary information.
' sField - The OLE object field in table T containing the
' binary information to write.
' Destination - The path and filename to write the binary
' information to.
'
' RETURN:
' The number of bytes written to the destination file.
'**************************************************************
Public Function WriteBLOB(T As Recordset, sField As String, Destination As String)
Dim NumBlocks As Integer, DestFile As Integer, i As Integer
Dim FileLength As Long, LeftOver As Long
Dim FileData As String
Dim RetVal As Variant
On Error GoTo Err_WriteBLOB
' Get the size of the field.
FileLength = T(sField).FieldSize()
If FileLength = 0 Then
WriteBLOB = 0
Exit Function
End If
' Calculate number of blocks to write and leftover bytes.
NumBlocks = FileLength \ BlockSize
LeftOver = FileLength Mod BlockSize
' Remove any existing destination file.
DestFile = FreeFile
Open Destination For Output As DestFile
Close DestFile
' Open the destination file.
Open Destination For Binary As DestFile
' SysCmd is used to manipulate the status bar meter.
RetVal = SysCmd(acSysCmdInitMeter, _
"Writing BLOB", FileLength / 1000)
' Write the leftover data to the output file.
FileData = T(sField).GetChunk(0, LeftOver)
Put DestFile, , FileData
' Update the status bar meter.
RetVal = SysCmd(acSysCmdUpdateMeter, LeftOver / 1000)
' Write the remaining blocks of data to the output file.
For i = 1 To NumBlocks
' Reads a chunk and writes it to output file.
FileData = T(sField).GetChunk((i - 1) * BlockSize _
+ LeftOver, BlockSize)
Put DestFile, , FileData
RetVal = SysCmd(acSysCmdUpdateMeter, _
((i - 1) * BlockSize + LeftOver) / 1000)
Next i
' Terminates function
RetVal = SysCmd(acSysCmdRemoveMeter)
Close DestFile
WriteBLOB = FileLength
Exit Function
Err_WriteBLOB:
WriteBLOB = -Err
Exit Function
End Function
Private Sub Form_Current()
' Show picture from BLOB Object from db
Dim db As Database
Dim rst As Recordset
Dim strFilterRecords As String
Dim strMatricule As String
Dim ReturnValue
Dim TempDir, TempFileName As String
Dim ByteData() As Byte 'Byte array for picture file.
TempDir = Environ("Temp"
Set db = CurrentDb()
Me!Matricule.SetFocus
strMatricule = Me!Matricule.Text
strFilterRecords = "SELECT Image FROM tblEleves" _
& " WHERE tblEleves.Matricule Like """ & strMatricule & "*"" "
' Open the BLOB table.
Set db = CurrentDb()
Set rst = db.OpenRecordset(strFilterRecords, dbOpenSnapshot)
TempFileName = TempDir & "\" & strMatricule & ".jpg"
ReturnValue = BLOB.WriteBLOB(rst, "Image", TempFileName)
Me!Image.Visible = True
Me!Image.Picture = TempFileName
Kill TempFileName
End Sub
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