Here is an example of spawning a child window in the main window. The child window will be automatically destroyed on main window close.
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| import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QAction, QStatusBar, QDialog, QMenuBar
class MainWindow(QMainWindow):
def __init__(self, *args, **kwargs): super(MainWindow, self).__init__(*args, **kwargs) self.setWindowTitle("My Fancy App")
menu_bar = QMenuBar()
self.window_about = AboutWindow(self) button_action_about = QAction("About", self) button_action_about.setStatusTip("About this application") button_action_about.triggered.connect(self.on_button_action_about_click) menu_bar.addAction(button_action_about)
self.setMenuBar(menu_bar)
self.setStatusBar(QStatusBar(self))
def on_button_action_about_click(self): self.window_about.show()
class AboutWindow(QDialog): def __init__(self, *args, **kwargs): super(AboutWindow, self).__init__(*args, **kwargs) self.setWindowTitle("About")
if __name__ == '__main__': app = QApplication(sys.argv) window = MainWindow() window.show() sys.exit(app.exec_())
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Note the AboutWindow
class in the child of QDialog
, inherit from QWdget
does not work. I dunno why though.