<div>You can use vtkImageTracerWidget.<br> </div>
<div>Mark</div>
<div><br> </div>
<div><span class="gmail_quote">On 9/8/05, <b class="gmail_sendername">LI XIN</b> <<a href="mailto:xli16@jhem.jhmi.edu">xli16@jhem.jhmi.edu</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Hello vtkusers,<br><br>I have a question about doing ROI using MFC and VTK. I have displayed the image by assigning a vtkRenderWindow to a pre-existing window in my MFC MDI app. Then I would like to use MFC's LineTo function to draw on the image with mouse. But I found that it didn't work. It seemed that I could not draw on a vtkRenderWindow.
<br><br>What should I do?<br><br>Thanks!<br><br>Xin<br>_______________________________________________<br>This is the private VTK discussion list.<br>Please keep messages on-topic. Check the FAQ at: <a href="http://www.vtk.org/Wiki/VTK_FAQ">
http://www.vtk.org/Wiki/VTK_FAQ</a><br>Follow this link to subscribe/unsubscribe:<br><a href="http://www.vtk.org/mailman/listinfo/vtkusers">http://www.vtk.org/mailman/listinfo/vtkusers</a><br></blockquote></div><br>