summaryrefslogtreecommitdiffstats
path: root/examples/datavisualization/draggableaxes/main.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'examples/datavisualization/draggableaxes/main.cpp')
-rw-r--r--examples/datavisualization/draggableaxes/main.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/examples/datavisualization/draggableaxes/main.cpp b/examples/datavisualization/draggableaxes/main.cpp
index a511935b..8d9bc8ec 100644
--- a/examples/datavisualization/draggableaxes/main.cpp
+++ b/examples/datavisualization/draggableaxes/main.cpp
@@ -26,6 +26,7 @@
#include <QtWidgets/QHBoxLayout>
#include <QtWidgets/QVBoxLayout>
#include <QtWidgets/QCommandLinkButton>
+#include <QtWidgets/QMessageBox>
int main(int argc, char **argv)
{
@@ -33,6 +34,13 @@ int main(int argc, char **argv)
Q3DScatter *graph = new Q3DScatter();
QWidget *container = QWidget::createWindowContainer(graph);
+ if (!graph->hasContext()) {
+ QMessageBox msgBox;
+ msgBox.setText("Couldn't initialize the OpenGL context.");
+ msgBox.exec();
+ return -1;
+ }
+
container->setMinimumSize(800, 600);
container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
container->setFocusPolicy(Qt::StrongFocus);