如何使用 PyGI 通过 Wnck 获取窗口列表？

发布于 2024-11-03 04:56:43 字数 377 浏览 4 评论 0原文

我刚刚开始使用 PyGI（在 Ubuntu Natty 上），尽管我以前从未使用过 pygtk。不过，我在 wxPython 程序中使用了 wnck，并且很容易获得当前打开的窗口的列表。在 PyGI 中，窗口列表始终为空。相关代码位：

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()

这样，wins == []。谢谢！

原文

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!

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善良天后 2024-11-10 04:56:43

您需要调用 screen.force_update()< /code>在 screen.get_windows() 返回窗口列表之前。不幸的是文档缺少这部分:(

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)>]

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)>]

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