[vtkusers] Error during cleanup: wglMakeCurrent failed in Clean()

[Zamir Khan]

I believe I've fixed the activation context exception (thanks for the 
help there!), but the initial problem still remains - changing the order 
of the cleanup did not help, any other thoughts?

Is there a good example of the specific order that VTK object cleanup 
should occur in and any specialized calls to be aware of (i.e. Finalize, 
RemoveAllViewProps, etc)?

Francois Bertel wrote:
> Googling the error message you just gave, shows it has to do with MFC
> and maybe related to call to
> ActivateActCtx(); / DeactivateActCtx(); in some wrong order.
>
> On Wed, Nov 25, 2009 at 11:51 AM, Zamir Khan <zkhan at modusmed.com> 
> <mailto:zkhan at modusmed.com%3E> wrote:
> > Thanks Francois - I have tried this before (it *does* seem the 
> logical thing
> > to do), but the initial problem remains and I also then see an 
> additional
> > exception occur on all platforms:
> >
> > "Unhandled exception at 0x77644401 in XXXX.exe: 0xC015000F: The 
> activation
> > context being deactivated is not the most recently activated one."
> >
> > It could be that this is a step in the right direction, but more 
> changes are
> > needed - I'm not sure!
> >
> > Francois Bertel wrote:
> >>
> >> Hello,
> >>
> >> Swap your two parts: delete the renderer first and then the 
> renderwindow.
> >>
> >>
> >> The reason is that RemoveAllViewProps() (implemented in
> >> vtkViewport.cxx, superclass of vtkRenderer) calls
> >> ReleaseGraphicsResources() on each prop which requires (indirectly) a
> >> valid window. For example, a prop like vtkActor will call
> >> ReleaseGraphicsResources() on its texture to release the OpenGL
> >> texture object id.
> >>
> >>
> >> On Wed, Nov 25, 2009 at 11:19 AM, Zamir Khan <zkhan at modusmed.com> 
> <mailto:zkhan at modusmed.com%3E>
> >> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> wrote:
> >> > I am seeing the following errors from a VTK 5 / MFC application 
> when I
> >> > close
> >> > it:
> >> >
> >> > ERROR: In ..\..\Rendering\vtkWin32OpenGLRenderWindow.cxx, line 113
> >> > vtkWin32OpenGLRenderWindow (0685AF70): wglMakeCurrent failed in 
> Clean(),
> >> > error: 6
> >> >
> >> > ERROR: In ..\..\Rendering\vtkWin32OpenGLRenderWindow.cxx, line 113
> >> > vtkWin32OpenGLRenderWindow (0698BAE8): wglMakeCurrent failed in 
> Clean(),
> >> > error: 6
> >> >
> >> > The error will appear 2 or 3 times in the debug output file, 
> depending
> >> > on
> >> > what actions I have taken in the program (I assume for the 
> instances of
> >> > vtkRenderWindow that are problematic). Also, I can only reproduce 
> it on
> >> > certain platforms (doesn't happen on machine with NVIDIA, but does on
> >> > machine with Intel integrated graphics). I have searched the mailing
> >> > list
> >> > and the recommendation appears to be to make sure to Finalize() the
> >> > vtkRenderWindow (there are 3 of them being instantiated in this
> >> > application). In the destructor of each of the classes that 
> instantiate
> >> > vtkRenderWindows, I have the following code snippets:
> >> >
> >> >   if (renWin)
> >> >   {
> >> >       renWin->Finalize();
> >> >       renWin->Delete();
> >> >   }
> >> >   if (renderer)
> >> >   {
> >> >       renderer->RemoveAllViewProps();
> >> >       renderer->Delete();
> >> >   }
> >> >
> >> > However, this does not resolve the issue. Any help is appreciated!
> >> >
> >> > Thanks,
> >> > Zamir
> >> >
> >> > --
> >> > Zamir Khan
> >> > Modus Medical Devices
> >> > e-mail: zkhan at modusmed.com <mailto:zkhan at modusmed.com> 
> <mailto:zkhan at modusmed.com> <mailto:zkhan at modusmed.com%3E>
> >> >
> >> > _______________________________________________
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> >>
> >>
> >>
> >> --
> >> François Bertel, PhD | Kitware Inc. Suite 204
> >> 1 (518) 371 3971 x113 | 28 Corporate Drive
> >> | Clifton Park NY 12065, USA
> >> _______________________________________________
> >> Powered by www.kitware.com
> >>
> >> Visit other Kitware open-source projects at
> >> http://www.kitware.com/opensource/opensource.html
> >>
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> >
> >
>
>
>
> -- 
> François Bertel, PhD | Kitware Inc. Suite 204
> 1 (518) 371 3971 x113 | 28 Corporate Drive
> | Clifton Park NY 12065, USA
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at 
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: 
> http://www.vtk.org/Wiki/VTK_FAQ
>
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