ICDecompressOpen macro (vfw.h)

The ICDecompressOpen macro opens a decompressor that is compatible with the specified formats.

Syntax

HIC ICDecompressOpen(
    DWORD fccType,
    DWORD fccHandler,
    LPBITMAPINFOHEADER lpbiIn,
    LPBITMAPINFOHEADER lpbiOut
);

Parameters

fccType

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

fccHandler

Four-character code indicating the preferred stream handler to use. Typically, this information is stored in the stream header in an AVI file.

lpbiIn

Pointer to a structure defining the input format. A decompressor handle is not returned unless it can decompress this format. For bitmaps, this parameter refers to a BITMAPINFOHEADER structure.

lpbiOut

Pointer to a structure defining an optional decompression format. You can also specify zero to use the default output format associated with the input format.

If this parameter is nonzero, a compressor handle is not returned unless it can create this output format. For bitmaps, this parameter refers to a BITMAPINFOHEADER structure.

Return value

Type: HIC

Returns a handle of a decompressor if successful or zero otherwise.

Remarks

The ICDecompressOpen macro is defined as follows:

#define ICDecompressOpen(fccType, fccHandler, lpbiIn, lpbiOut) \ 
    ICLocate(fccType, fccHandler, lpbiIn, lpbiOut, ICMODE_DECOMPRESS); 

Requirements

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

See also

Video Compression Macros

Video Compression Manager