1 files changed, 7 insertions, 6 deletions
diff --git a/examples/widgets/mainwindows/sdi/mainwindow.cpp b/examples/widgets/mainwindows/sdi/mainwindow.cpp
index 301c85c144..62a74b26e6 100644
--- a/examples/widgets/mainwindows/sdi/mainwindow.cpp
+++ b/examples/widgets/mainwindows/sdi/mainwindow.cpp
@@ -338,9 +338,9 @@ void MainWindow::loadFile(const QString &fileName)
     }
 
     QTextStream in(&file);
-    QApplication::setOverrideCursor(Qt::WaitCursor);
+    QGuiApplication::setOverrideCursor(Qt::WaitCursor);
     textEdit->setPlainText(in.readAll());
-    QApplication::restoreOverrideCursor();
+    QGuiApplication::restoreOverrideCursor();
 
     setCurrentFile(fileName);
     statusBar()->showMessage(tr("File loaded"), 2000);
@@ -434,9 +434,9 @@ bool MainWindow::saveFile(const QString &fileName)
     }
 
     QTextStream out(&file);
-    QApplication::setOverrideCursor(Qt::WaitCursor);
+    QGuiApplication::setOverrideCursor(Qt::WaitCursor);
     out << textEdit->toPlainText();
-    QApplication::restoreOverrideCursor();
+    QGuiApplication::restoreOverrideCursor();
 
     setCurrentFile(fileName);
     statusBar()->showMessage(tr("File saved"), 2000);
@@ -472,11 +472,12 @@ MainWindow *MainWindow::findMainWindow(const QString &fileName) const
 {
     QString canonicalFilePath = QFileInfo(fileName).canonicalFilePath();
 
-    foreach (QWidget *widget, QApplication::topLevelWidgets()) {
+    const QList<QWidget *> topLevelWidgets = QApplication::topLevelWidgets();
+    for (QWidget *widget : topLevelWidgets) {
         MainWindow *mainWin = qobject_cast<MainWindow *>(widget);
         if (mainWin && mainWin->curFile == canonicalFilePath)
             return mainWin;
     }
 
-    return 0;
+    return nullptr;
 }