The menu popup direction

[XiuHua Wu <xhwu grandstream com>]

Hi All:
      Can GTK+ control the menu popup direction ?? When I create a 
popup menu and use the function gtk_menu_popup to show the menu, and the 
menu alway pops from up to down. Is it possible to pop the menu from 
down to up ?? I try to find solution for this from the Google search and 
the GTK document, but with no luck. Any help is highly appreciated.

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Sincerely,
Vanevan
xhwu grandstream com