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Question on Pyqt5

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I am using Pyqt5 version 5.15.4 and am using windows 11.
I have been converting an application in vb.net into python code. I have a few major questions but I will ask only one for now. It is about needing code to populate a second window listboxes and textboxes. What I need but cannot find is a way to run code before opening the second window to populate the boxes automatically. Similar to On_Load function in vb.net. I have been looking for a solution for days now with any luck. Can anyone offer me advise?
Feb 22 '22 #1
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