ICOpenFunction

The ICOpenFunction function opens a compressor or decompressor defined as a function.

HIC ICOpenFunction(
  DWORD fccType,       
  DWORD fccHandler,    
  UINT wMode,          
  FARPROC lpfnHandler  
);
 

Parameters

fccType

Type of compressor to open. For video, the value of this parameter is ICTYPE_VIDEO.

fccHandler

Preferred handler of the specified type. Typically, this comes from the stream header in an AVI file.

wMode

Flag to define the use of the compressor or decompressor. The following values are defined:

ICMODE_COMPRESS

Compressor will perform normal compression.

ICMODE_DECOMPRESS

Decompressor will perform normal decompression.

ICMODE_DRAW

Decompressor will decompress and draw the data directly to hardware.

ICMODE_FASTCOMPRESS

Compressor will perform fast (real-time) compression.

ICMODE_FASTDECOMPRESS

Decompressor will perform fast (real-time) decompression.

ICMODE_QUERY

Queries the compressor or decompressor for information.

lpfnHandler

Address of the function used as the compressor or decompressor.

Return Values

Returns a handle to a compressor or decompressor if successful or zero otherwise.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vfw.h.
  Import Library: Use vfw32.lib.

See Also

Video Compression Manager Overview, Video Compression Functions