See also ICDecompress, ICM_COMPRESS_BEGIN, ICM_DECOMPRESS_BEGIN, ICM_DECOMPRESS_END, ICM_DRAW_BEGIN
wParam = (DWORD) (LPVOID) &icd;
lParam = sizeof(ICDECOMPRESS);
Notifies a video decompression driver to decompress a frame of data into an application-supplied buffer.
If you want the driver to decompress data directly to the screen, send the ICM_DRAW message.
The driver returns an error if this message is received before the ICM_DECOMPRESS_BEGIN message.
ICM_ABOUT, ICM_GETINFO, ICM_GETSTATE, ICM_SETSTATE