to find a workaround for my problem I tried to catch the DockspaceSeperatorResize event from the KryptonDockingManager. The event fires, when I was clicking the seperator bar besides and above the docked pages. But when I arrange to document pages so that they are in tabbed order, then the seperator bars between these tabbed documents do not fire a DockspaceSeperatorResize event. I need this event to obscure my control (OpenGL) in the document page with my own code, because these controls are based on OpenGL surfaces and not on standard GDI surfaces and therefor your method to obscure the controls during Splitter bar moving does not work (it works only if Aero is turned off!).
So what can I do to get these events? In addition it would be fine to get an event from KryptonDockingManager, when moving the Splitter bar has finished.
With best regards