问题
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
回答1:
This should disable it:
window.setWindowFlags(window.windowFlags() & ~QtCore.Qt.WindowStaysOnTopHint)
This should enable it:
window.setWindowFlags(window.windowFlags() | QtCore.Qt.WindowStaysOnTopHint)
回答2:
You want the Qt::WindowStaysOnTopHint hint, see Window Flags Example.
回答3:
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)
回答4:
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.
来源：https://stackoverflow.com/questions/4850584/pyqt4-how-can-i-toggle-the-stay-on-top-behavior