[vtkusers] cleaning frame buffer

[Giancarlo Amati]

Hello everybody,

I have the following problem: whan I start my application, my frame buffer 
is completely black this mean that is empty and this is ok. After my first 
visualization I stop my program closing it. When I will start again, my 
visualization area contains my privious visualization image for few 
seconds, this mean that the memory is not completely clear at that moment.
Is there a vtk class of function that clean the framebuffer that I can 
call before closing my application?

thank you very much.
Giancarlo

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dott. Giancarlo Amati                  |
(amati at ira.cnr.it)                     |
                                       |
National Research Council              |
RadioAstronomical Institute            |
office phone n. +39 051 6399405        |
via Gobetti 101 - Bologna (Italy)      |
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