ICM_DECOMPRESS

The ICM_DECOMPRESS message notifies a video decompression driver to decompress a frame of data into an application-defined buffer.

ICM_DECOMPRESS 
wParam = (DWORD) (LPVOID) &icd; 
lParam = sizeof(ICDECOMPRESS); 
 

Parameters

icd

Address of an ICDECOMPRESS structure.

lParam

Size, in bytes, of ICDECOMPRESS.

Return Values

Returns ICERR_OK if successful or an error otherwise.

Remarks

If you want the driver to decompress data directly to the screen, send the ICM_DRAW message.

The driver returns an error if this message is received before the ICM_DECOMPRESS_BEGIN message.

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, ICDECOMPRESS, ICM_DECOMPRESS_BEGIN, ICM_DRAW