Window position

[Jiang XU <jiang xu echostar com>]

I need to show a GtkWindow at the specific position ( described by x,y )
on screen.

But I found that gtk_window_set_position only support three types of the
position, which are Middle, NONE, MOUSE.

I wonder whether I can show the GtkWindow at the specific position
without auto move mouse?
I also wonder what does gtk_widget_popup do? and when to use that
function?

If anyone knows, please teach me ASAP.

Thanks very much

Jiang