ICOpen function (vfw.h)

The ICOpen function opens a compressor or decompressor.

Syntax

HIC VFWAPI ICOpen(
  DWORD fccType,
  DWORD fccHandler,
  UINT  wMode
);

fccType

Four-character code indicating the type of compressor or decompressor to open. For video streams, the value of this parameter is "VIDC".

fccHandler

Preferred handler of the specified type. Typically, the handler type is stored in the stream header in an AVI file.

wMode

Flag defining the use of the compressor or decompressor. The following values are defined.

Value	Meaning
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.

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

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	vfw.h
Library	Vfw32.lib
DLL	Msvfw32.dll