3 files changed, 7 insertions, 4 deletions
diff --git a/src/gui/doc/snippets/code/src_gui_kernel_qapplication.cpp b/src/gui/doc/snippets/code/src_gui_kernel_qapplication.cpp
index 8177927a8b..cbe476bc5a 100644
--- a/src/gui/doc/snippets/code/src_gui_kernel_qapplication.cpp
+++ b/src/gui/doc/snippets/code/src_gui_kernel_qapplication.cpp
@@ -89,7 +89,8 @@ QSize MyWidget::sizeHint() const
 //! [4]
 void showAllHiddenTopLevelWidgets()
 {
-    foreach (QWidget *widget, QApplication::topLevelWidgets()) {
+    const auto topLevelWidgets = QApplication::topLevelWidgets();
+    for (QWidget *widget : topLevelWidgets) {
         if (widget->isHidden())
             widget->show();
     }
@@ -100,7 +101,8 @@ void showAllHiddenTopLevelWidgets()
 //! [5]
 void updateAllWidgets()
 {
-    foreach (QWidget *widget, QApplication::allWidgets())
+    const auto topLevelWidgets = QApplication::topLevelWidgets();
+    for (QWidget *widget : topLevelWidgets)
         widget->update();
 }
 //! [5]
diff --git a/src/gui/doc/snippets/code/src_gui_kernel_qguiapplication.cpp b/src/gui/doc/snippets/code/src_gui_kernel_qguiapplication.cpp
index 4ddf8c8acb..63fdb3bdd0 100644
--- a/src/gui/doc/snippets/code/src_gui_kernel_qguiapplication.cpp
+++ b/src/gui/doc/snippets/code/src_gui_kernel_qguiapplication.cpp
@@ -53,6 +53,7 @@ int main(int argc, char *argv[])
 MyMainWidget::MyMainWidget(QWidget *parent)
     :QWidget(parent)
 {
+    QGuiApplication::setFallbackSessionManagementEnabled(false);
     connect(qApp, SIGNAL(commitDataRequest(QSessionManager)), SLOT(commitData(QSessionManager)));
 }
 
diff --git a/src/gui/doc/snippets/droparea.cpp b/src/gui/doc/snippets/droparea.cpp
index 13cf540d5e..ff77a1609e 100644
--- a/src/gui/doc/snippets/droparea.cpp
+++ b/src/gui/doc/snippets/droparea.cpp
@@ -127,10 +127,10 @@ void DropArea::clear()
 
 QPixmap DropArea::extractPixmap(const QByteArray &data, const QString &format)
 {
-    QList<QByteArray> imageFormats = QImageReader::supportedImageFormats();
+    const QList<QByteArray> imageFormats = QImageReader::supportedImageFormats();
     QPixmap pixmap;
 
-    foreach (const QByteArray &imageFormat, imageFormats) {
+    for (const QByteArray &imageFormat : imageFormats) {
         if (format.mid(6) == QString(imageFormat)) {
             pixmap.loadFromData(data, imageFormat);
             break;