ICM_DECOMPRESS_QUERY

The ICM_DECOMPRESS_QUERY message queries a video decompression driver to determine if it supports a specific input format or if it can decompress a specific input format to a specific output format. You can send this message explicitly or by using the ICDecompressQuery macro.

ICM_DECOMPRESS_QUERY

wParam = (DWORD) (LPVOID) lpbiInput;

lParam = (DWORD) (LPVOID) lpbiOutput;

Parameters

lpbiInput

Address of a BITMAPINFO structure containing the input format.

lpbiOutput

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

Return Values

Returns ICERR_OK if the specified decompression is supported or ICERR_BADFORMAT otherwise.

See Also

BITMAPINFO, ICDecompressQuery

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