question about the calling of api BitBlt

[phillip]

i want to captuare my desktop to Clipboard in labview via win api. but when call the function BitBlt(HDC hdcDest,int nXDest,int nYDest,int nWidth,int nHeight,HDC hdcSrc,int nXSrc,int nYSrc,DWORD dwRop) i don't know how to input the last para in labview. The data type is DWORD. Should i input SRCCOPY directly?

When i call function SetClipboardData(UINT uFormat, HANDLE hMem) to set the bitmap to clipboard i met the same question. How to input the first para which type is UINT.

help ~thanks~~

[TobyD]

QUOTE(phillip @ Mar 2 2008, 07:37 PM)

i want to captuare my desktop to Clipboard in labview via win api. but when call the function BitBlt(HDC hdcDest,int nXDest,int nYDest,int nWidth,int nHeight,HDC hdcSrc,int nXSrc,int nYSrc,DWORD dwRop) i don't know how to input the last para in labview. The data type is DWORD. Should i input SRCCOPY directly?

When i call function SetClipboardData(UINT uFormat, HANDLE hMem) to set the bitmap to clipboard i met the same question. How to input the first para which type is UINT.

help ~thanks~~

I don't know if this will help, but have you seen this thread? It discusses how to capture an image of the desktop to the windows clipboard by simulating the print screen key. I have attached an updated sample VI.

Download File:post-8758-1204567862.vi

[Yair]

The thread Toby linked to also includes a link to the code capture tool, which includes VIs which allow writing an image to the clipboard.

[phillip]

haha! it works~ thank u very much^^

but still i want to know what problam with my code:

[Yair]

QUOTE(phillip @ Mar 4 2008, 03:01 AM)

but still i want to know what problam with my code:

I'm not sure you're using the functions correctly, but I don't feel like starting to read up on them to understand how they work. Essentially, a UINT should be a U32.