diff options
Diffstat (limited to 'examples/datavisualization/customitems/main.cpp')
-rw-r--r-- | examples/datavisualization/customitems/main.cpp | 8 |
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); |