1 files changed, 17 insertions, 13 deletions
diff --git a/examples/widgets/widgets/windowflags/controllerwindow.cpp b/examples/widgets/widgets/windowflags/controllerwindow.cpp
index e2abad89f4..0e9a916988 100644
--- a/examples/widgets/widgets/windowflags/controllerwindow.cpp
+++ b/examples/widgets/widgets/windowflags/controllerwindow.cpp
@@ -48,10 +48,15 @@
 **
 ****************************************************************************/
 
-#include <QtWidgets>
-
 #include "controllerwindow.h"
 
+#include <QCheckBox>
+#include <QCoreApplication>
+#include <QGroupBox>
+#include <QHBoxLayout>
+#include <QPushButton>
+#include <QRadioButton>
+
 //! [0]
 ControllerWindow::ControllerWindow(QWidget *parent)
     : QWidget(parent)
@@ -63,7 +68,7 @@ ControllerWindow::ControllerWindow(QWidget *parent)
 
     quitButton = new QPushButton(tr("&Quit"));
     connect(quitButton, &QPushButton::clicked,
-            qApp, &QApplication::quit);
+            qApp, &QCoreApplication::quit);
 
     QHBoxLayout *bottomLayout = new QHBoxLayout;
     bottomLayout->addStretch();
@@ -83,26 +88,25 @@ ControllerWindow::ControllerWindow(QWidget *parent)
 //! [1]
 void ControllerWindow::updatePreview()
 {
-    Qt::WindowFlags flags = 0;
+    Qt::WindowFlags flags;
 
-    if (windowRadioButton->isChecked()) {
+    if (windowRadioButton->isChecked())
         flags = Qt::Window;
-    } else if (dialogRadioButton->isChecked()) {
+    else if (dialogRadioButton->isChecked())
         flags = Qt::Dialog;
-    } else if (sheetRadioButton->isChecked()) {
+    else if (sheetRadioButton->isChecked())
         flags = Qt::Sheet;
-    } else if (drawerRadioButton->isChecked()) {
+    else if (drawerRadioButton->isChecked())
         flags = Qt::Drawer;
-    } else if (popupRadioButton->isChecked()) {
+    else if (popupRadioButton->isChecked())
         flags = Qt::Popup;
-    } else if (toolRadioButton->isChecked()) {
+    else if (toolRadioButton->isChecked())
         flags = Qt::Tool;
-    } else if (toolTipRadioButton->isChecked()) {
+    else if (toolTipRadioButton->isChecked())
         flags = Qt::ToolTip;
-    } else if (splashScreenRadioButton->isChecked()) {
+    else if (splashScreenRadioButton->isChecked())
         flags = Qt::SplashScreen;
 //! [1] //! [2]
-    }
 //! [2] //! [3]
 
     if (msWindowsFixedSizeDialogCheckBox->isChecked())