path: root/examples
diff options
authorTor Arne Vestbø <>2020-06-08 20:00:36 +0200
committerTor Arne Vestbø <>2020-07-02 10:27:50 +0200
commit6ff79478a44fce12ca18832a56db4a370a9ff417 (patch)
tree2bcd7ab7bac46fe28e0828e0a704649bbc025e8f /examples
parent037dce81fc27ec241edb6829f6df41927b80666e (diff)
Introduce platform API abstraction for QOpenGLContext
The API is available by including qopenglcontext.h as usual, but scoped in the QPlatformInterface namespace. The namespace exposes platform specific type-safe interfaces that provide: a) Factory functions for adopting native contexts, e.g. QCocoaGLContext::fromNative(nsContext, shareContext); b) Access to underlying native handles, e.g. openGLContext->platformInterface<QCocoaGLContext>->nativeContext() c) Platform specific functionality, e.g. static QWGLContext::openGLModuleHandle() openGLContext->platformInterface<QEGLContext>->doSomething(); The platform interfaces live close to the classes they extend, removing the need for complex indirection and plumbing, and avoids kitchen-sink modules and APIs such as the extras modules, QPlatformFunctions, or QPlatformNativeInterface. In the case of QOpenGLContext these platform APIs are backed by the platform plugin, so dynamic_cast is used to ensure the platform plugin supports the requested interface, but this is and implementation detail. The interface APIs are agnostic to where the implementation lives, while still being available to the user as part of the APIs they extend/augment. The documentation will be restored when the dust settles. Task-number: QTBUG-80233 Change-Id: Iac612403383991c4b24064332542a6e4bcbb3293 Reviewed-by: Friedemann Kleint <>
Diffstat (limited to 'examples')
1 files changed, 4 insertions, 1 deletions
diff --git a/examples/opengl/contextinfo/widget.cpp b/examples/opengl/contextinfo/widget.cpp
index 0762c91662..ee3161eae7 100644
--- a/examples/opengl/contextinfo/widget.cpp
+++ b/examples/opengl/contextinfo/widget.cpp
@@ -381,8 +381,11 @@ void Widget::renderWindowReady()
const char *gltype[] = { "Desktop", "GLES 2", "GLES 1" };
m_output->append(tr("Qt OpenGL configuration: %1")
+#if defined(Q_OS_WIN)
+ using namespace QPlatformInterface;
m_output->append(tr("Qt OpenGL library handle: %1")
- .arg(QString::number(qintptr(QOpenGLContext::openGLModuleHandle()), 16)));
+ .arg(QString::number(qintptr(QWGLContext::openGLModuleHandle()), 16)));
QList<QByteArray> extensionList = context->extensions().values();
std::sort(extensionList.begin(), extensionList.end());