[vtkusers] Visual Studio .NET -- problem with vtkFormsWindowControl

[Ben Held]

Bill,

 

We had some trouble with this some time ago. Our experience was with a C++
Windows Forms application so I don't know if it is relevant, but if my
memory is correct, it had to do with making sure we were using the same
configuration that the vtkFormsWindow was built with - in our case it was
built for Win32 and we could not use it with a 64-bit version of our
application.  

 

As a result we ended up placing the code for vtkFormsWindow inside our
application and inserting it into our controls programmatically.

 

Ben

 

From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
Of William E. Lucarell
Sent: Thursday, September 18, 2008 7:17 AM
To: vtkusers at vtk.org
Subject: Re: [vtkusers] Visual Studio .NET -- problem with
vtkFormsWindowControl

 

Now I'm getting a System.AccessViolationException meaning memory is corrupt.
If anyone has had this problem or can help me, I'd greatly appreciate it.

 

Thanks,

 

Bill

 

From: vtkusers-bounces at vtk.org [mailto:vtkusers-bounces at vtk.org] On Behalf
Of William E. Lucarell
Sent: Wednesday, September 17, 2008 1:58 PM
To: vtkusers at vtk.org
Subject: [vtkusers] Visual Studio .NET -- problem with vtkFormsWindowControl

 

I have been using VTK in Java, and recently we switched to using Visual
C#.NET 2005.

 

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:

 

System.NullReferenceException: Object reference not set to an instance of an
object.

 

at vtk.vtkFormsWindowControl.OnResize(EventArgs ea) in
c:\dev\out\t2\control\vtkformswindow\vtkformswindowcontrol.cpp:line 297

at System.Windows.Forms.Control.OnSizeChanged(EventArgs e) 

at System.Windows.Forms.Control.UpdateBounds(Int32 x, Int32 y, Int32 width,
Int32 height, Int32 clientWidth, Int32 clientHeight)

at System.Windows.Forms.Control.UpdateBounds()

at System.Windows.Forms.Control.WmWindowPosChanged(Message& m)

at System.Windows.Forms.Control.WndProc(Message& m)

at vtk.vtkFormsWindowControl.WndProc(Message& m) in
c:\dev\out\t2\control\vtkformswindow\vtkformswindowcontrol.cpp:line 620

at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) 

at
System.Windows.Forms.Design.ControlDesigner.DesignerWindowTarget.DefWndProc(
Message& m) 

at System.Windows.Forms.Design.ControlDesigner.WndProc(Message& m)

at
System.Windows.Forms.Design.ControlDesigner.DesignerWindowTarget.OnMessage(M
essage& m)

 

What is causing this error? I'm new to Visual C# .NET.

 

Bill Lucarell

 

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20080918/16660e97/attachment.htm>