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<p class=MsoNormal>I have been using VTK in Java, and recently we switched to
using Visual C#.NET 2005.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I successfully added a vtkFormsWindowControl to my Windows
application. I have all of the DotNet libraries and the vtkFormsWindow
library. However, when I drag a vtkFormsWindowControl onto the
application, I get this error embedded on the control instead of getting the
red cone that I should get:<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>System.NullReferenceException:
Object reference not set to an instance of an object.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
vtk.vtkFormsWindowControl.OnResize(EventArgs ea) in
c:\dev\out\t2\control\vtkformswindow\vtkformswindowcontrol.cpp:line 297<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Control.OnSizeChanged(EventArgs e) <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Control.UpdateBounds(Int32 x, Int32 y, Int32 width, Int32
height, Int32 clientWidth, Int32 clientHeight)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Control.UpdateBounds()<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Control.WmWindowPosChanged(Message& m)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Control.WndProc(Message& m)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
vtk.vtkFormsWindowControl.WndProc(Message& m) in
c:\dev\out\t2\control\vtkformswindow\vtkformswindowcontrol.cpp:line 620<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Design.ControlDesigner.DesignerWindowTarget.DefWndProc(Message&
m) <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Design.ControlDesigner.WndProc(Message& m)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'>at
System.Windows.Forms.Design.ControlDesigner.DesignerWindowTarget.OnMessage(Message&
m)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal>What is causing this error? I’m new to Visual C# .NET.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b><i><span style='font-size:10.0pt;font-family:"Verdana","sans-serif";
color:#00337F'>Bill Lucarell</span></i></b><span style='font-size:8.0pt'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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