1 files changed, 8 insertions, 0 deletions
diff --git a/examples/datavisualization/customitems/main.cpp b/examples/datavisualization/customitems/main.cpp
index 1e96a64a..138b1467 100644
--- a/examples/datavisualization/customitems/main.cpp
+++ b/examples/datavisualization/customitems/main.cpp
@@ -27,6 +27,7 @@
 #include <QtWidgets/QVBoxLayout>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QLabel>
+#include <QtWidgets/QMessageBox>
 
 int main(int argc, char **argv)
 {
@@ -34,6 +35,13 @@ int main(int argc, char **argv)
     Q3DSurface *graph = new Q3DSurface();
     QWidget *container = QWidget::createWindowContainer(graph);
 
+    if (!graph->hasContext()) {
+        QMessageBox msgBox;
+        msgBox.setText("Couldn't initialize the OpenGL context.");
+        msgBox.exec();
+        return -1;
+    }
+
     container->setMinimumSize(QSize(800, 600));
     container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
     container->setFocusPolicy(Qt::StrongFocus);