setting the depth of a gtkwindow

[Frank Felfe <innerspace iname com>]

Hi,

I have a simple question: Is it possible to set the depth of a GtkWindow
in gtk?

I want to send a dialog window to the top of the window stack. I only
found a function gdk_window_get_geometry which has a parameter named
depth. But I don't know what it is for. Please help!

Greetings
FF