ICM_COMPRESS_QUERY

wParam = (DWORD) (LPVOID) lpbiInput;
lParam = (DWORD) (LPVOID) lpbiOutput;
 

Queries a video compression driver to determine if it supports a specific input format or if it can compress a specific input format to a specific output format.

wParam
Address of a BITMAPINFO structure describing the input format.
lParam
Address of a BITMAPINFO structure describing the output format. You can specify zero for this parameter to indicate any output format is acceptable.

On receiving this message, the driver should examine the BITMAPINFO structure associated with wParam to determine if it can compress the input format.

See Also

ICM_COMPRESS_GET_FORMAT