The AVIFileReadData function reads optional header data that applies to the entire file, such as author or copyright information.
STDAPI AVIFileReadData( PAVIFILE pfile, DWORD ckid, LPVOID lpData, LONG * lpcbData );
Handle to an open AVI file.
RIFF chunk identifier (four-character code) of the data.
Pointer to the buffer used to return the data read.
Pointer to a location indicating the size of the memory block referenced by lpData. If the data is read successfully, the value is changed to indicate the amount of data read.
Returns zero if successful or an error otherwise. The return value AVIERR_NODATA indicates that data with the requested chunk identifier does not exist.
The optional header information is custom and does not have a set format.
The argument pfile is a pointer to an IAVIFile interface.
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.