How can I change a QLabel in an infinite loop? Those. it is necessary to update QLabel , but if you cram such a cycle into the code, QTGui not initialized.

    2 answers 2

    After each update, call processEvents

      First, first initiate and display a window with your QLabel, and only after that in a separate function, implement a change in QLabel. brief example

      app = QApplication ([]);

      wnd = Window ();

      wnd.show ();
      wnd.labelProgress ();

      app.exec_ ();