QMainWindow changeEvent() - window is minimized

MainWindow is not maximized: I minimize the window and restore it from taskbar. Signals mainWindowMinimalize() and mainWindowRestore() are emitted.

MainWindow is maximized: I minimize the window and restore it from taskbar. Signal mainWindowMinimalize() is emitted twice.

Qt 4.7.4 no problem.

code example:

class MainWindow : public QMainWindow
{
...
}

void MainWindow::changeEvent(QEvent *e)
{
static int n = 0;

QMainWindow::changeEvent(e);

if (isMinimized())

{ qDebug() << "Minimized" << n++; emit mainWindowMinimalize(); }

else

{ qDebug() << "Restore" << n++; emit mainWindowRestore(); }

}