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-rw-r--r--examples/quick/rendercontrol/window_singlethreaded.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/examples/quick/rendercontrol/window_singlethreaded.cpp b/examples/quick/rendercontrol/window_singlethreaded.cpp
index 993c508c0a..c72d11ade5 100644
--- a/examples/quick/rendercontrol/window_singlethreaded.cpp
+++ b/examples/quick/rendercontrol/window_singlethreaded.cpp
@@ -165,6 +165,8 @@ void WindowSingleThreaded::render()
m_quickWindow->resetOpenGLState();
QOpenGLFramebufferObject::bindDefault();
+ m_context->functions()->glFlush();
+
m_quickReady = true;
// Get something onto the screen.