GTK window hints

I'm trying to get a window to cover the whole screen. Its positioning and dimensions is fine but it gets covered by the Gnome panel. To complicate things I have two monitors and this app needs to support people with multiple screens.

WINDOW_TYPE_HINT_SPLASHSCREEN is a good start. It covers both screens but not the panel. It's still there, just behind the panel.

WINDOW_TYPE_HINT_DOCK looked ideal but I need this window to take focus to listen to a keyboard event. _DOCK seems like it purposely ignores keyboard events (which kind of makes sense). Can I force it to ta开发者_运维技巧ke keyboard focus?

Is there some way I can force a hinted window to cover the panel?

There's window.fullscreen() which you can call on a normal "un-hinted" window. I assume this lets the window manager decide whether the window should cover the panel or not.

If you use the WINDOW_TYPE_HINT_MENU, you can give the focus to the window by calling the gtk_window_present() function. However, I don't know if you will be able to cover the panel.

Another hint: the panel probably change its _NET_WM_STRUT property so that other windows cannot cover it. Maybe you will have to play with this property (or another) in your window.