[vtkusers] Re: VTk and MFC application

[Nigel Nunn]

Vineet Gupta [vineetseema at hotmail.com] wrote: 
 
> I am creating VTK application using MFC in Visual C++.  
> I have created the application that generates the volume 
> in VTK window using classes written in MFC application.  
> I have a picture window in the MFC application that I want
> the vtk volume to be displayed in.  Can someone tell me 
> how get the VTK window to display on the Picture Window 
> of the MFC Application.

Hi Vineet Gupta,
 
Many of us MFC users begin with the Vtk/MFC example called 
"Sample" that you can get with the current nightlies, or 
by downloading vtkNightlyCpp.EXE. 
 
This approach is to fill a vtkPropCollection with actors, 
then add them to your "picture view" during OnUpdate(): 
Notice that the vtkPropCollection is held as a member 
in the CDocument-derived class: 
 
  propc = this->GetDocument()->GetProps(); 

See:  /vtkNightly/Sample/SampleView.cpp 
 
 
 
 
// CPictureView message handlers 
// ... 
// ... 
 
void CPictureView::OnUpdate(CView*, LPARAM, CObject*) 
{ 
  vtkPropCollection *propc; 
  vtkProp *prop; 
 
  // first remove any old actors 
  this->Renderer->GetProps()->RemoveAllItems(); 
  propc = this->GetDocument()->GetProps(); 
  propc->InitTraversal(); 
  while (prop = propc->GetNextProp()) 
    { 
    this->Renderer->AddProp(prop); 
    this->Renderer->ResetCamera(); 
    } 
  
  this->vtkMFCRenderView::OnUpdate(pSender, lHint, pHint); 
} 
 
 
If this is confusing, you can familiarise yourself with 
the implied Document/View architecture by working through 
the Scribble tutorial that comes with Visual C++. 
 
Good luck, 
Nigel