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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I’m trying to use the ProgressEvt of the vtkRenderWindow to display the progress of the rendering operation in Activiz.NET. When Is set the ProgressEvt to a function, that function never gets called. For example, here’s some code I use:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> vRendWin.ProgressEvt += <span style='color:blue'>new</span> <span style='color:#2B91AF'>vtkObject</span>.<span style='color:#2B91AF'>vtkObjectEventHandler</span>(vRendWin_ProgressEvt); // this is my vtkRenderWindow<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> progressBar.Show(); // show my progress bar<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> progressBar.Message = <span style='color:#A31515'>"Rendering volume... Please wait."</span>;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> progressBar.Refresh();<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> vRendWin.Render(); // tell the render window to render<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> vRendWin.WaitForCompletion();<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> progressBar.Hide(); <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> // Here’s my progress event function<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New";color:blue'> void</span><span style='font-size:10.0pt;font-family:"Courier New"'> vRendWin_ProgressEvt(<span style='color:#2B91AF'>vtkObject</span> sender, <span style='color:#2B91AF'>vtkObjectEventArgs</span> e)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:"Courier New"'> <span style='color:blue'>throw</span> <span style='color:blue'>new</span> <span style='color:#2B91AF'>NotImplementedException</span>(); // I have implemented anything yet<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> }<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal>Is ProgressEvt not supported for vtkRenderWindow or am I doing something wrong? Or is this a bug?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Sean<o:p></o:p></p></div></body></html>