gtk_menu_popup () and GtkMenuPositionFunc ()

["Steve ." <iteration69 gmail com>]

I'm having trouble manually positioning a popup menu.

Looking at the prototype of gtk_menu_popup ():

http://developer.gnome.org/gtk/2.24/GtkMenu.html#gtk-menu-popup

And here is GtkMenuPositionFunc ():

http://developer.gnome.org/gtk/2.24/GtkMenu.html#GtkMenuPositionFunc

I see there  is a position function (arg4 of gtk_menu_popup) and data to be passed to the position function (arg5 of gtk_menu_popup)

I cant seem to get the menu to position using a function, so then i tried to manually place the menu by modifying the event data, and this still did not work. The only example i found on this matter was in Syd logons book, but it did not help.

My last resort was to try this;

gtk_menu_popup(GTK_MENU(callback_data),NULL,NULL,NULL,NULL,NULL,NULL); 

Somehow gtk_menu_popup is fetching the cursor position,  internal access i suppose.

Obviously I don't understand how the menu is suppose to be positioned and i'm having a difficult time finding information.

Any help would be greatly appreciated.

Steve