Hi, one of our customers is trying to display 3d with opencascade using our java docking framework (www.vlsolutions.com) which supports heavyweight (3d) canvases.
We have found a problem which looks a bit like this old one : http://www.opencascade.org/org/forum/thread_1294
problem : when a 3d canvas changes of state (e.g. docked to maximized) its containment hierarchy changes (it's attached to a new parent container). And then : the grey rect (related to an error with wglMakeCurrent), as if the parent window was not reachable anymore.
Problem does not occur when moving/resizing the canvas, only related to the containment hierarchy.
If anyone has ever encountered such an error, help would be appreciated (it might also be an error on our side : a missing validate() somewhere ?)
anyhow, many thanks for reading.