path: root/src/gui/kernel/qopenglcontext.cpp
diff options
Diffstat (limited to 'src/gui/kernel/qopenglcontext.cpp')
1 files changed, 11 insertions, 2 deletions
diff --git a/src/gui/kernel/qopenglcontext.cpp b/src/gui/kernel/qopenglcontext.cpp
index 3fccd6ba9a..90e9235353 100644
--- a/src/gui/kernel/qopenglcontext.cpp
+++ b/src/gui/kernel/qopenglcontext.cpp
@@ -590,10 +590,10 @@ QVariant QOpenGLContext::nativeHandle() const
bool QOpenGLContext::create()
- if (isValid())
+ Q_D(QOpenGLContext);
+ if (d->platformGLContext)
- Q_D(QOpenGLContext);
d->platformGLContext = QGuiApplicationPrivate::platformIntegration()->createPlatformOpenGLContext(this);
if (!d->platformGLContext)
return false;
@@ -676,6 +676,15 @@ QOpenGLContext::~QOpenGLContext()
Returns if this context is valid, i.e. has been successfully created.
+ On some platforms the return value of \c false for a context that was
+ successfully created previously indicates that the OpenGL context was lost.
+ The typical way to handle context loss scenarios in applications is to
+ check via this function whenever makeCurrent() fails and returns \c false.
+ If this function then returns \c false, recreate the underlying native
+ OpenGL context by calling create(), call makeCurrent() again and then
+ reinitialize all OpenGL resources.
\sa create()
bool QOpenGLContext::isValid() const