Share via

ICM_DECOMPRESSEX_QUERY

  • Article

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

Pointer to 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.

Requirements

**  Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
**  Windows 95/98/Me:** Included in Windows 95 and later.
**  Header:** Declared in Vfw.h.

See Also

Video Compression Manager, Video Compression Messages, ICDECOMPRESSEX