The ICM_GETINFO message queries a video compression driver to return a description of itself in an ICINFO structure.
ICM_GETINFO
wParam = (DWORD) (LPVOID) lpicinfo;
lParam = sizeof(icinfo);
Returns the size, in bytes, of ICINFO or zero if an error occurs..
Typically, applications send this message to display a list of the installed compressors.
The driver should fill all members of the ICINFO structure except szDriver.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in vfw.h.
Video Compression Manager Overview, Video Compression Messages, ICINFO