[Insight-users] Problem with itk-vtk in MFC

[Wang Minyou]

Hi everyone,

I'm a freshman using itk. I have some problem with itk-vtk in MFC. I wrote 
a Win32 Project in VC6. I want to use itk to readin a pic and view it with 
vtk. Here is a portion of codes.

*********************************
CString strFile="";

char szFilter[]="bmp文件(*.bmp)|*.bmp|All files(*.*)|*.*||";
CFileDialog 
dlg(TRUE,"bmp",NULL,OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT,szFilter,this);
dlg.m_ofn.lpstrInitialDir=".";

if(dlg.DoModal()==IDOK)
{
	strFile=dlg.GetPathName();
}

imageReader2D_1->SetFileName( strFile );

typedef itk::ImageToVTKImageFilter<ImageType2D> ConnectorType2D;
ConnectorType2D::Pointer connector=ConnectorType2D::New();
vtkImageViewer* viewer=vtkImageViewer::New();
vtkRenderWindowInteractor* 
ImgRenderWindowInteractor=vtkRenderWindowInteractor::New();

connector->SetInput(imageReader2D_1->GetOutput());

HWND hwnd = this->GetSafeHwnd();

viewer->SetParentId(hwnd);
viewer->SetPosition(0,0);
viewer->SetSize(512,512);
viewer->SetupInteractor(ImgRenderWindowInteractor);
	
viewer->SetInput(connector->GetOutput());
viewer->Render();

viewer->SetColorWindow(255);
viewer->SetColorLevel(128);
ImgRenderWindowInteractor->Start();
**************************

There is no problem when compiling and linking, but when running it results 
in a "Runtime Error". Using Debug, I found it occurs when running 
"viewer->Render();". 
Does anyone can give some informations about where the wrong lie. Thank you 
in advance!

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