diff options
Diffstat (limited to 'examples/datavisualization/custominput')
-rw-r--r-- | examples/datavisualization/custominput/main.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/examples/datavisualization/custominput/main.cpp b/examples/datavisualization/custominput/main.cpp index a104854d..28d06d4f 100644 --- a/examples/datavisualization/custominput/main.cpp +++ b/examples/datavisualization/custominput/main.cpp @@ -30,6 +30,7 @@ #include <QtWidgets/QComboBox> #include <QtWidgets/QFontComboBox> #include <QtWidgets/QLabel> +#include <QtWidgets/QMessageBox> #include <QtGui/QScreen> #include <QtGui/QFontDatabase> @@ -39,6 +40,13 @@ 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; + } + QSize screenSize = graph->screen()->size(); container->setMinimumSize(QSize(screenSize.width() / 2, screenSize.height() / 1.5)); container->setMaximumSize(screenSize); |