Mouse clicks not recognized on File Drop down menu List widgets......Need Help

["svalbard colaco" <svalbardcolaco gmail com>]

Hi all;

I'm porting an application on GTK-DirectFB backend, And now my  UI gets
rendered but
The File drop down menu list *does'nt highlight most of the widgets(submenu
items)* and hence it does'nt recognize any mouse button clicks;But i can
successfully navigate via the Keyboard (Key press Events are recognized);

What could be the issue with the drop down submenu items(
e.g. File->New->Window not highlighted) *not getting highlighted with mouse
movements* over them??

Which are the functions in GTK-DFB which are responsible for highlighting
submenu items on mouse movement over them.........??

Any pointers will be of great help...

Thanks & Regards,
Sv.