[vtkusers] wglMakeCurrent failed error

[Giancarlo Amati]

Hello everybody,

well...this is an error that I don't know how to manage.
I have a vtkAssembly object which has a set of vtkSphereSource object part. Now, as I am doing a software for real time gesture visualization I keep the vtkAssembly object stored in a variable and 
using its setUserMatrix I want to update its position in the space.
Now, the problem is that whenever I update/refresh the QVTK class by calling the Renderer() function of the renderer I receive this message:

vtkWin32OpenglRenderWindow.cxx line 244:
vtkWin32OpenglRenderwindow.cxx (01B0EE68): wglMakeCurrent failed in MakeCurrent(), error: The requested resource is in use.

what does that mean? can't I update an object that is already in the pipeline? 

Any help is really appreciated!!

Kind Regards.
GC.

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