Ubuntu - getAllWindows returns empty string titles

[cedricscheepers]

This was still working in version 0.0.43 on Ubuntu.

If I call getAllWindows, I get a list ['', '', '', '', 'LXQt Panel']. If I call getAllAppsWindowsTitles, I get the dict {'pcmanfm-qt': [''], 'chrome': ['', ''], 'java': [''], 'lxqt-panel': ['LXQt Panel']}.

With the same windows open, rolling back to version 0.0.43, I get (for the same 2 functions mentioned above): ['pcmanfm-qt', 'PB Trust Admin | Home - Google Chrome', 'New Tab - Google Chrome', 'rpa ? requirements.txt', 'LXQt Panel'] {'pcmanfm-qt': ['pcmanfm-qt'], 'chrome': ['PB Trust Admin | Home - Google Chrome', 'New Tab - Google Chrome'], 'java': ['rpa ? requirements.txt'], 'lxqt-panel': ['LXQt Panel']}

I trust you will be able to fix this, as I love your library.

[Kalmat]

Hi! Thank you so much for your feedback!

Please, let me know some more details about your setup:

• Ubuntu version
• Desktop Manager (I guess you are using GNOME/X11, right?)
• PyWinCtl version (I recently uploaded v0.0.44, v.0.0.45 and v0.0.50)

I have uploaded (not published on PyPi yet) a new version (v.0.1). I have tested both functions on my own Ubuntu (with GNOME/X11) and they are working OK in this last version. Can you please give it a try to check if this problem persists? You can download the wheel from here.

In the meantime I will download a copy of v0.0.43 to compare. I am not conscious of having modified those functions in particular, but clearly I did (somewhere else in the module, I guess).

Thank you again!

[Kalmat]

FOUND!!!

The problem was in the new ewmhlib module... Surprisingly, this doesn't work in all cases (like Chrome):

import pywinctl
import Xlib.display
display = Xlib.display.Display()

for win in pywinctl.getAllWindows():
    w = display.create_resource_object('window', win.getHandle())
    print(w.get_wm_name())   # In some cases this is EMPTY!!!

So I had to replace it by querying the property itself instead of using native Xlib function (partial code, not working):

ret: Optional[Xlib.protocol.request.GetProperty] = self.getProperty("_NET_WM_NAME")
res: Optional[Union[List[int], List[str]]] = getPropertyValue(ret)
if res:
        print(str(res[0]))

Thank you SO MUCH for finding and reporting it!!!

I will try to prepare an intermediate version (v0.0.51) fixing this issue, or perhaps I will try to finish all v0.1 tests to upload everything at once (are you in a hurry with this?)

EDIT I eventually decided to upload new v0.1 version to PyPi since the differences between v0.0.50 and v0.1 are slight, and all possible issues will likely be common, so I can solve them all at once when they arise. Please, give a try to new v0.1 version to check if everything is working OK in your case.

[cedricscheepers]

Thats great news! Glad you found it! Thank you for your really quick response, and even better finding a solution! Keep up the great work