ICM_DECOMPRESSEX_QUERY

The ICM_DECOMPRESSEX_QUERY message queries a video compression driver to determine if it supports a specific input format or if it can decompress a specific input format to a specific output format.

ICM_DECOMPRESSEX_QUERY 
wParam = (DWORD) (LPVOID) &icdex; 
lParam = sizeof(ICDECOMPRESSEX); 
 

Parameters

icdex

Address of a ICDECOMPRESSEX structure containing the input format.

lParam

Size, in bytes, of ICDECOMPRESSEX.

Return Values

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

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vfw.h.

See Also

Video Compression Manager Overview, Video Compression Messages, ICDECOMPRESSEX