Win32 API

[Daniel Kanev]

When I declare a WIN32 API like this Private Declare Function GetScrollPos Lib "user32" (ByVal hWnd As IntPtr, ByVal nBar As Integer) As Integer I receive an error message by the compiler - "User-defined type not defined" Do you know what it means? P.S. This is VB6

[nitin3]

i think there is no primitive datatype named IntPtr invb6. u can use long instead of IntPtr in this function.

[MohammadAmiry]

You may use (Byref hWnd As Long) instead.

[Dave Kreskowiak]

This Declare is for VB.NET, not VB6. The VB6 equivilent would be:

Private Declare Function GetScrollPos Lib "user32" (ByVal hWnd As Long, ByVal nBar As Long) As Long

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[Thomas Stockwell]

Consider using API Viewer or API Guide for determining API calls from whatever the language.

Regards, Thomas Stockwell Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. Visit my homepage Oracle Studios[^]