diff options
Diffstat (limited to 'examples/opengl')
-rw-r--r-- | examples/opengl/hellogl2/glwidget.cpp | 7 | ||||
-rw-r--r-- | examples/opengl/hellogl2/main.cpp | 4 |
2 files changed, 9 insertions, 2 deletions
diff --git a/examples/opengl/hellogl2/glwidget.cpp b/examples/opengl/hellogl2/glwidget.cpp index 9738dcda20..6505ad3141 100644 --- a/examples/opengl/hellogl2/glwidget.cpp +++ b/examples/opengl/hellogl2/glwidget.cpp @@ -55,8 +55,11 @@ GLWidget::GLWidget(QWidget *parent) // --transparent causes the clear color to be transparent. Therefore, on systems that // support it, the widget will become transparent apart from the logo. m_transparent = QCoreApplication::arguments().contains(QStringLiteral("--transparent")); - if (m_transparent) - setAttribute(Qt::WA_TranslucentBackground); + if (m_transparent) { + QSurfaceFormat fmt = format(); + fmt.setAlphaBufferSize(8); + setFormat(fmt); + } } GLWidget::~GLWidget() diff --git a/examples/opengl/hellogl2/main.cpp b/examples/opengl/hellogl2/main.cpp index 4dc67f6e15..554e37e19b 100644 --- a/examples/opengl/hellogl2/main.cpp +++ b/examples/opengl/hellogl2/main.cpp @@ -59,6 +59,10 @@ int main(int argc, char *argv[]) QSurfaceFormat::setDefaultFormat(fmt); MainWindow mainWindow; + if (QCoreApplication::arguments().contains(QStringLiteral("--transparent"))) { + mainWindow.setAttribute(Qt::WA_TranslucentBackground); + mainWindow.setAttribute(Qt::WA_NoSystemBackground, false); + } mainWindow.resize(mainWindow.sizeHint()); int desktopArea = QApplication::desktop()->width() * QApplication::desktop()->height(); |