The ICAbout macro notifies a video compression driver to display its About dialog box. You can use this macro or explicitly call the ICM_ABOUT message.
DWORD ICAbout(
hic,
hwnd
);
You can also determine if a driver has an About dialog box by specifying -1 in this parameter, as in the ICQueryAbout macro. The driver returns ICERR_OK if it has an About dialog box or ICERR_UNSUPPORTED otherwise.
Returns ICERR_OK if the driver supports this message or ICERR_UNSUPPORTED otherwise.
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 Macros, ICM_ABOUT, ICQueryAbout