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RibbonMainWindow backstage is not drawn when the application use a QOpenGLWindow

3 months 1 day ago #1 by GEOPIXEL
RibbonMainWindow backstage is not drawn when the application use a QOpenGLWindow was created by GEOPIXEL
Our application main window is inheriting from a RibbonMainWindow and we are using a backstage view which is shown when triggering the system button, as in your example.
We are also using a DockMainWindow as the central widget of our RibbonMainWindow.

The DockMainWindow is populated with several document panels.
One of the document panel is actually a widget container from a QOpenGLWindow. When this document panel is active, the backstage view is not correctly drawn : the client area of the QOpenQLWindow is drawn on top of the backstage so we can only see the backstage area outside of the GOpenGLWindow. This is quite a serious issue for us as we are using a third party component from OpenDesignAlliance which is relying on a QOpenGLWindow and we haven't found any workaround yet.

As a test we have tried to integrate a dummy QOpenGLWidget and the issue is not present in this case : only when it is a QOpenGLWidget.

Thanks in advance for your support, have a nice day.

Note : We are still using TitanComponent version 2023.1 but found the issue is also present in version 2023.1.
The environment is Windows 11, Qt 6.6.3 MsVC2019.

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2 months 2 weeks ago #2 by GEOPIXEL
Replied by GEOPIXEL on topic RibbonMainWindow backstage is not drawn when the application use a QOpenGLWindow
It seems this issue is not related to Titan but the normal behavior of the QOpenGLWindow.

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1 week 6 days ago #3 by PolywickStudio
Replied by PolywickStudio on topic RibbonMainWindow backstage is not drawn when the application use a QOpenGLWindow
You need to pause the OpenGL window renderer and restore context.

This is a QT issue, not a DevMachine issue...

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