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I want to create an app, where the user will decide it the main window will stay always on top of the other apps.

In PyQt4 it is easy to create a window that will stay always on top. This is covered here : PyQt: Always on top

What I want to have a widget (menu item, checkbox etc) that will toggle this behavior on or off. So far i haven't found a way to reset the original behavior.

thank you

UPDATE After the suggestion of İsmail 'cartman' Dönmez, I searched a bit more and I found an implementation of the WindowFlags example in PyQt4.

It can be found here

Community
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pmav99
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4 Answers4

17

This should disable it:

window.setWindowFlags(window.windowFlags() & ~QtCore.Qt.WindowStaysOnTopHint)

This should enable it:

window.setWindowFlags(window.windowFlags() | QtCore.Qt.WindowStaysOnTopHint)
Rosh Oxymoron
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    It took me a while to find that one should call `windowFlags()` to preserve `Qt.WindowFlags` type. If I try to use XOR and build up flags from scratch (in my case `Qt.Dialog ^ Qt.WindowContextHelpButtonHint`), I get `TypeError` as I end up with `int` instead of `Qt.WindowFlags`. – mlt Jul 18 '12 at 07:13
  • This should be the accepted answer. It shows way to disable/enable this – swdev Jul 05 '14 at 06:27
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Rosh is correct. But don't forget to include window.show() after you change the flag. Your window will be hidden when the flag is changed. I have also included the code for toggling the flag.

This will clear it:

window.setWindowFlags(window.windowFlags() & ~QtCore.Qt.WindowStaysOnTopHint)

This will enable it:

window.setWindowFlags(window.windowFlags() | QtCore.Qt.WindowStaysOnTopHint)

This will toggle it:

window.setWindowFlags(window.windowFlags() ^ QtCore.Qt.WindowStaysOnTopHint)

Chad
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4

You want the Qt::WindowStaysOnTopHint hint, see Window Flags Example.

ismail
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    Thank you for your answer. Actually the PyQt version of the example can be found here : http://blindvic.livejournal.com/9437.html – pmav99 Feb 02 '11 at 09:22
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I'm not able to comment on Rosh's answer, so noting here - for PyQt 5.7 on Devuan, if you toggle the WindowStaysOnTopHint flag on a QDialog after it is shown, the window disappears and you need to show() it again immediately after. Other than this it works.

Omega Weapon
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