<![CDATA[PyQt5 - Dialog pops up immediately on opening for the first time, but far slower on subsequent uses.]]>https://forum.qt.io/topic/139453/pyqt5-dialog-pops-up-immediately-on-opening-for-the-first-time-but-far-slower-on-subsequent-usesRSS for NodeThu, 05 Nov 2026 07:34:53 GMTTue, 20 Sep 2022 13:43:45 GMT60<![CDATA[Reply to PyQt5 - Dialog pops up immediately on opening for the first time, but far slower on subsequent uses. on Tue, 20 Sep 2022 14:33:41 GMT]]>@KASULA
Not really: get rid of all this "thread handling" stuff, and saving data etc., and see how the dialog behaves.

Since you (seem to) intend to create a brand new dialog each time, try setting the Qt.WA_DeleteOnClose flag/attribute on the dialog, does that make any difference?

def return_cancel(self,new_form):
    new_form().reject()

Do you press Cancel in your timings? Because this code is wrong.

]]>https://forum.qt.io/post/729499https://forum.qt.io/post/729499Tue, 20 Sep 2022 14:33:41 GMT