[vtkusers] Store a BMP image in a uchar array

[Subhas Hati]

Hi
     I am a novice to VTK. I am able to read a VTK
File and able to display through imageActor. May I
know how to store the bmp image content in a uchar
array.
Please find below my code. 

Regards
Subhas 

vtkBMPReader  *bmpReader = vtkBMPReader::New();
bmpReader->SetFileName("/home/subhas/software/VTK/MyExamples/masonry.bmp");
    bmpReader->Update();
                                                      
                                                      
                                                      
                                                      
                                                      
                                             
  vtkImageActor *imageActor = vtkImageActor::New();
    imageActor->SetInput( bmpReader->GetOutput() );
                                                      
                         
  vtkImageData  *imageData = imageActor->GetInput();
                                                      
                           vtkUnsignedCharArray 
*array = vtkUnsignedCharArray::New();




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