[maemo-developers] dealing with non-GTK windows

[From: Austin Che]

Tapani Pälli <tapani.palli at nokia.com> wrote:

>>     - Is it possible to force such a window into fullscreen? I don't
>>       care if it needs to be done manually. For example, is it
>>       possible to have a program that takes whatever window is
>>       currently on top/in focus and makes it fullscreen?
>>   
> Yes, by giving hints to window manager. This can be achieved by setting
> _NET_WM_STATE to _NET_WM_STATE_FULLSCREEN.

    Thanks! I found it easier to use gdk_window_foreign_new and then
    gdk_window_fullscreen. I've now got a semi-working hack using my
    powerlaunch program to force any window into fullscreen by
    pressing power,fullscreen.
    
    For example, I can now run NX in fullscreen and get a full KDE
    desktop on the N800:
    http://austinche.name/maemo/nx-fullscreen.png
    
    The one remaining issue I have is how to reliably get the ID of
    the top window or focused window. I'm using XQueryPointer to get
    the window under the pointer but it appears to sometimes give
    windows that no longer exist (cache?) and thereby giving BadWindow
    errors.