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.
| 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. |
lpfnHandler
Pointer to the function used as the compressor or decompressor.
Return Values
Returns a handle to a compressor or decompressor if successful or zero 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.
** Library:** Use Vfw32.lib.
See Also