ICM_COMPRESS_QUERY

See also ICM_COMPRESS_GET_FORMAT

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.

• Returns ICERR_OK if the specified compression is supported or ICERR_BADFORMAT otherwise.

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.