1 files changed, 29 insertions, 0 deletions
diff --git a/examples/opengl/hellogl2/mainwindow.py b/examples/opengl/hellogl2/mainwindow.py
new file mode 100644
index 000000000..69b9b66fe
--- /dev/null
+++ b/examples/opengl/hellogl2/mainwindow.py
@@ -0,0 +1,29 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from PySide6.QtCore import Slot, Qt
+from PySide6.QtGui import QKeySequence
+from PySide6.QtWidgets import QMainWindow, QMessageBox
+
+from window import Window
+
+
+class MainWindow(QMainWindow):
+
+    def __init__(self):
+        super().__init__()
+        menuWindow = self.menuBar().addMenu("Window")
+        menuWindow.addAction("Add new", QKeySequence(Qt.CTRL | Qt.Key_N),
+                             self.onAddNew)
+        menuWindow.addAction("Quit", QKeySequence(Qt.CTRL | Qt.Key_Q),
+                             qApp.closeAllWindows)  # noqa: F821
+
+        self.onAddNew()
+
+    @Slot()
+    def onAddNew(self):
+        if not self.centralWidget():
+            self.setCentralWidget(Window(self))
+        else:
+            QMessageBox.information(self, "Cannot Add Window()",
+                                    "Already occupied. Undock first.")