[Interest] QOpenGLWidget inside QDockWidget

[Alexandre Ribeiro]

Hi,

I've placed a QOpenGLWidget inside a QDockWidget and everything works as
expected.

However when I drag the dockwidget from the main window there's a blue
flicker in the QOpenGLWidget. This blue flicker has nothing to do with my
OpenGL code (right now it's merely clearing the background with red).

Any idea on what might be happening?

Best regards,
Alex
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