[2005] Win32 API Error: "Attempted to read or write protected memory."

[GottaGetITDone]

Hey Merrion,

You got it! But didn't....

I simply changed the vbNull to 0 and BOOM, my device handle is returned!

So I was very happy for a second until I then tried to move the file pointer using SetFilePointer() and got the same error!

<DllImport("kernel32.dll")> _
    Public Function SetFilePointer( _
        ByVal hFile As Long, _
        ByVal lDistanceToMove As Long, _
        ByVal lpDistanceToMoveHigh As Long, _
        ByVal dwMoveMethod As Long) As Long
    End Function
 
    Public Const FILE_BEGIN As Long = 0
    Public Const FILE_EOF As Long = &HFFFFFFFF

Used like so:

If SetFilePointer(hDevice, (iSectorSize * iSectorNumber), 0, FILE_BEGIN) = FILE_EOF Then
   MessageBox.Show("Unable to find sector " & iSectorNumber, "Error!", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
   Return baDataBuffer
End If

This threw the same "Attempted to read or write....." error. Hmmmmmm

Thanks Merrion,
Matt.