When I using QFont to change font size from qlabel and It'll worked.
But if I changed mainwindow It have same size.
How can I resizing font size when mainwindow changed.
c++/Qt creator
Thanks :)
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Not exactly what you're looking for but maybe helpful: [SO: How to automatically increase/decrease text size in label in Qt](https://stackoverflow.com/a/42690033/7478597) – Scheff's Cat Apr 26 '21 at 08:49
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You can reimplement resizeEvent function for your QMainWindow class and set font in there, check this [link](https://stackoverflow.com/questions/12828825/how-to-assign-callback-when-the-user-resizes-a-qmainwindow) – Karen Melikyan Apr 26 '21 at 10:00