public static extern int AVIFileInfo( int pfile, ref AVIFILEINFO pfi, int lSize);
public static extern int AVIFileInfo( int pfile, ref AVIFILEINFO pfi, int lSize);
public static extern int AVIFileInfo( int pfile, ref AVIFILEINFO pfi, int lSize);
public static extern int AVIFileInfo( int pfile, ref AVIFILEINFO pfi, int lSize);