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ICM_COMPRESS
The ICM_COMPRESS message notifies a video compression driver to compress a
frame of data into an application-defined buffer.
ICM_COMPRESS
wParam = (DWORD) (LPVOID) &icc;
lParam = sizeof(ICCOMPRESS);
Parameters
icc
Address of an ICCOMPRESS structure. The following members of this structure specify the compression
parameters: lpbiInput, lpInput, lpbiOutput, lpOutput, lpbiPrev, lpPrev, lpckid, lpdwFlags, dwFrameSize, and dwQuality.
The driver should also use the biSizeImage member of the BITMAPINFOHEADER structure associated with lpbiOutput of ICCOMPRESS to return the size of the compressed frame.
lParam
Size, in bytes, of ICCOMPRESS.
Return Values
Returns ICERR_OK if successful or an error otherwise.
See Also
BITMAPINFOHEADER, ICCOMPRESS
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