Timeout to close dialog if user does not react

asn1_value_editor/sdlHandler.py

@@ -823,15 +823,20 @@ class sdlHandler(QObject):
         to let the user decide if continuous signals shall be processed '''
         # res is of type ctypes.POINTER(c_int) -> res[0]=0 to set False,
         # meaning that there is no message pending in the queue
+        ans = -1
+
+        def timeout(question):
+            question.close()
         question = QMessageBox(self.parent,
                                'Evaluate Continuous States', '')
-        question.setText('Do you want to send a new message'
-                         ' or evaluate continuous signals (default)?')
+        question.setText('Do you want to send a new message or evaluate '
+                         'evaluate continuous signals (default in 3 sec)?')
         question.addButton('Send message', QMessageBox.AcceptRole)
         question.addButton('Evaluate continuous signals',
                            QMessageBox.RejectRole)
-        ans = question.exec_()
-        if ans == QMessageBox.AcceptRole:
+        QTimer().singleShot(3000, partial(timeout, question))
+        _ = question.exec_()
+        if question.result() == QMessageBox.AcceptRole:
             res[0] = 1
         else:
             res[0] = 0