[vtkusers] vtkWindowToImageFilter and TvtkBorlandRenderWindow

[Jim]

You do not need to create new vtkRenderWindow. Instead you do this:
 
//TvtkBorlandRenderWindow *vtkRenderWindow1 
vtkWindowToImageFilter *w2i = vtkWindowToImageFilter::New();
w2i->SetInput(vtkRenderWindow1 ->GetRenderWindow());
 
Jim

Anders Vestbo <anders at fmri.no> wrote:
hi,

I am trying to use the vtkWindowToImageFilter to save some snapshots to 
a (tiff-)file. I have encapsulated a vtk render window on a standard 
TForm component in Borland C++ Builder using the TvtkBorlandRenderWindow 
component class (provided in Examples/GUI/Win32/vtkBorland). However, 
the following code does not seem to work, i.e. it simply crashes with an 
"Access violation":

//TvtkBorlandRenderWindow *vtkRenderWindow1

vtkRenderWindow *renWin = vtkRenderWindow1->GetRenderWindow();

vtkWindowToImageFilter *filter = vtkWindowToImageFilter::New();
vtkTIFFWriter *writer = vtkTIFFWriter::New();

filter->SetInput(renWin);
filter->Update(); <-----crash
...

anyone have any idea why this happens??

Anders Vestbo

		
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