[vtkusers] bug with multiple render windows?

[Jeff Lee]

John Biddiscombe wrote:

>the next week is wild guessing. If you have any hints for me and Nick,
>I'd be very happy.
><<<
>
>My prime enemy for leaks is when the ReleaseGraphicsResources is called on actors/textures etc
>
>If a renderwindow is freed, sometimes, actors that have resources linked to the display context still exist and need to free themselves first. I'm very careful in my code to ensure all acttors are checked before any windows are destroyed and also, when an actor is removed from a window, that it needs to call release graphics resources too.
>
Yes, I have the same problem in java with ReleaseGraphicsResources 
getting called when the RenderWindow is freed - you need to be sure that 
all the actors are cleaned up first though, or really bad things can 
happen.  I'm not sure if this is a design problem or a bug.  Any 
comments from someone at vtk?
-Jeff

>
>I'm rambling, but these are places to double check. I have a fix in my own local code that I've not committed for a year or more because "I can't believe" such a bug would really exist...
>
>JB
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