How can I get a list of windows with Wnck, using PyGI?

Question

I just started using PyGI (on Ubuntu Natty), although I have never used pygtk before. I have used wnck in a wxPython program though, and it was easy enough to get a list of currently opened windows. From PyGI, the window list is always empty. relevant code bits:

from gi.repository import Gtk, Wnck

while Gtk.events_pending():
    Gtk.main_iteration()
#... in my app class...
    screen = Wnck.Screen.get_default()
    wins = screen.get_windows()

with that, wins == []. Thanks!

Thanks, ptomato! How can I do that myself? – crazedpsyc Apr 26 '11 at 20:04 — crazedpsyc, Apr 26 '11 at 20:04

score 6 · Accepted Answer · answered May 23 '11 at 12:38

6

You need to call screen.force_update() before screen.get_windows() returns list of windows. Unfortunately docs are lacking this part :(

In [1]: from gi.repository import Gtk, Wnck

In [2]: Gtk.main_iteration()
Out[2]: True

In [3]: screen = Wnck.Screen.get_default()

In [4]: screen.force_update()

In [5]: screen.get_windows()
Out[5]: 
[<Window object at 0x167bd20 (WnckWindow at 0x195d0e0)>,
 <Window object at 0x167bf00 (WnckWindow at 0x195d740)>,
 <Window object at 0x167bf50 (WnckWindow at 0x195d850)>]

answered May 23 '11 at 12:38

plaes

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Can you please share the link to available doc? I couldn't find it – ganesshkumar Oct 23 '13 at 14:56
1

Mentioned under the Examples heading: https://developer.gnome.org/libwnck/stable/getting-started.html – Cas Aug 17 '15 at 21:09
This does not seem to work for new windows opened since first starting the script. Is there something else that needs to be done? – Ben Davis Dec 11 '18 at 07:10

score 1 · Answer 2 · answered Apr 28 '11 at 07:50

1

In your example you have to use: Gtk.main_iteration_do(False) instead of Gtk.main_iteration().

answered Apr 28 '11 at 07:50

gpoo

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How can I get a list of windows with Wnck, using PyGI?

2 Answers2