ICInstall function (vfw.h)

The ICInstall function installs a new compressor or decompressor.


  DWORD  fccType,
  DWORD  fccHandler,
  LPARAM lParam,
  LPSTR  szDesc,
  UINT   wFlags



Four-character code indicating the type of data used by the compressor or decompressor. Specify "VIDC" for a video compressor or decompressor.


Four-character code identifying a specific compressor or decompressor.


Pointer to a null-terminated string containing the name of the compressor or decompressor, or the address of a function used for compression or decompression. The contents of this parameter are defined by the flags set for wFlags.


Reserved; do not use.


Flags defining the contents of lParam. The following values are defined.

Value Meaning
ICINSTALL_DRIVER The lParam parameter contains the address of a null-terminated string that names the compressor to install.
ICINSTALL_FUNCTION The lParam parameter contains the address of a compressor function. This function should be structured like the DriverProc entry point function used by compressors.

Return value

Returns ICERR_OK if successful or an error otherwise.


Applications must open an installed compressor or decompressor before using it.

If your application installs a function as a compressor or decompressor, it should remove the function with the ICRemove function before it terminates. This prevents other applications from trying to access the function when it is not available.


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

See also

Video Compression Functions

Video Compression Manager