RegQueryValueEx 1

[figler]

A pretty typical story, I think:
I downloaded someone else's code, hoping that with it I wouldn't have to deal with Windows API to query/write to Registry. Then I get some funny behavior and, not knowing even where to start, I come to Tek-Tips for some expert advice.
Well, the code is attached. The weird thing is that the key (a String) looks normal when I view it using regedit. But when I use RegQueryValueEx, I get a weird string returned to me. The value is the path of an Access database:
C:\Documents And Settings\AUser\My Documents\Database.MDB
What I get back is:
C:\Documents And Settings\AUser\My Documents\Database.MDB o c u m e n t s \ d a t a b a s e . m d b

Does anyone have *ANY* idea why this happens?

Thanks! -Brad

Function GetStringValue(SubKey As String, Entry As String)

Call ParseKey(SubKey, MainKeyHandle)

If MainKeyHandle Then
   rtn = RegOpenKeyEx(MainKeyHandle, SubKey, 0, KEY_READ, HKey) 'open the key
   If rtn = ERROR_SUCCESS Then 'if the key could be opened then
      sBuffer = Space(255)     'make a buffer
      lBufferSize = Len(sBuffer)
      rtn = RegQueryValueEx(HKey, Entry, 0, REG_SZ, sBuffer, lBufferSize)
'...
End Function

ps I only included a chunk of code here, because sBuffer is messd up as of the RegQueryValueEx function (the last line)...

 

[GlynA]

I think you need to add the line
sbuffer = left$(sbuffer,lbuffersize)

Many API functions return a null terminated string rather than a VB string. Since the functions also returns the length of the string the above line of code will truncate the buffer at the appropriate place.

Glyn.