1 files changed, 12 insertions, 0 deletions
diff --git a/tools/qml/qmlruntime.cpp b/tools/qml/qmlruntime.cpp
index 109de7d..e0482cf 100644
--- a/tools/qml/qmlruntime.cpp
+++ b/tools/qml/qmlruntime.cpp
@@ -623,6 +623,8 @@ QDeclarativeViewer::QDeclarativeViewer(QWidget *parent, Qt::WindowFlags flags)
     autoStopTimer.setRunning(false);
     recordTimer.setRunning(false);
     recordTimer.setRepeating(true);
+
+    QObject::connect(qApp, SIGNAL(aboutToQuit()), this, SLOT(appAboutToQuit()));
 }
 
 QDeclarativeViewer::~QDeclarativeViewer()
@@ -1277,6 +1279,16 @@ void QDeclarativeViewer::ffmpegFinished(int code)
     qDebug() << "ffmpeg returned" << code << frame_stream->readAllStandardError();
 }
 
+void QDeclarativeViewer::appAboutToQuit()
+{
+    // avoid QGLContext errors about invalid contexts on exit
+    canvas->setViewport(0);
+
+    // avoid crashes if messages are received after app has closed
+    delete loggerWindow;
+    loggerWindow = 0;
+}
+
 void QDeclarativeViewer::autoStartRecording()
 {
     setRecording(true);