[Paraview-developers] Crash in vtkTkRenderWidget on exiting (in my modified version of ParaView)

[Utkarsh Ayachit]

Not necessarily sure that the line 747 crash is for the same reason, 
however, if the RenderModuleProxy if not getting destroyed when
vtkPVApplication.cxx (line 1409) releases the proxy (with a 
SetRenderModuleProxy(0) call), it usually leads to errors while exiting.

Ensure that everyone maintaining a reference to the RenderModuleProxy
let's go of the proxy before vtkPVApplication::RemoveWindow gets called.

vtkPVWindow has a PrepareForDelete method where one can enforce the 
releasing of the render module proxy.

Hopefully, this will help.

Utkarsh.

Stanton, Eric T wrote:
> I'm making changes/improvements to the Lookmark Manager code but
> *sometimes* when I exit ParaView, I get an access violation in
> vtkTkRenderWidget at line 747. 
> 
> I've been chasing this bug around for a while and can't figure out what
> I changed to cause this behavior.
> 
> The problem is that I don't understand the error and so don't know what
> to look for in debugging my code. If someone could help me with this I'd
> be most grateful.
> 
> Thanks,
> 
> Eric Stanton
> Sandia National Laboratories
> Data Analysis and Visualization
> 505-284-4422
> 
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