1 files changed, 6 insertions, 0 deletions
diff --git a/examples/datavisualization/audiolevels/main.cpp b/examples/datavisualization/audiolevels/main.cpp
index a8de6adb..a526c2ef 100644
--- a/examples/datavisualization/audiolevels/main.cpp
+++ b/examples/datavisualization/audiolevels/main.cpp
@@ -31,6 +31,12 @@ int main(int argc, char *argv[])
     QGuiApplication app(argc, argv);
 
     Q3DBars window;
+
+    if (!window.hasContext()) {
+        qWarning() << QStringLiteral("Couldn't initialize the OpenGL context.") ;
+        return -1;
+    }
+
     window.setFlags(window.flags() ^ Qt::FramelessWindowHint);
     window.resize(800, 500);
     window.setTitle("Qt Data Visualization - Microphone audio levels visualizer");