[vtkusers] Swing Based vtkPanel

Tim Hutton T.Hutton at eastman.ucl.ac.uk
Tue Mar 5 10:58:52 EST 2002 

I'm on Win2K, with the latest VTK4.0 code, with JDK 1.3.1 and it doesn't 
work for me from the command line.

I compile using

javac SimpleVTK.java

and run using

java SimpleVTK

The cone window plus button appears but I also get a dialog pop up saying:

java.exe - No Disk

There is no disk in the drive. Please insert a disk into drive 
\Device\Harddisk1\DR1.

Cancel | Try Again  | Continue

which persists whichever button I click until the program crashes.

Just throwing in my experiences!

Tim.

At 09:48 05/03/2002 -0600, you wrote:
>i am using windows 2000, and vtk3.2. If you run the *.java from command line
>everything is fine. But if you are using a windows IDE then it will be a
>problem. I have seen a lot of posting on this issue In public user groups
>(not connected with vtk, but related to JNI)
>Since this runs from command prompt with out problem it is not a java/native
>interface problem. It is some IDE problem. So I don't mind....
>
>Gowri
>
>
>-----Original Message-----
>From: Jeff Lee [mailto:jeff at cdnorthamerica.com]
>Sent: 05 March 2002 15:42
>To: anast.jm at pg.com
>Cc: vtkusers at public.kitware.com
>Subject: Re: [vtkusers] Swing Based vtkPanel
>
>It works fine for me - on win2000, SunOS, linux.  I have never heard of
>this problem before on win2k systems.  What are your details - os, vtk
>version, etc...  I added the lock/unlock mechanism to allow native code
>to call render/makeCurrent/other calls which affect the drawing surface.
>-Jeff
>
>anast.jm at pg.com wrote:
>
> >Satheesh....I'm not even getting that far with SimpleVTK......the window
>and
> >button display okay but even if I do nothing the app crashes in 1
>sec...just too
> >new to figure this out on my own...john
> >
> >An unexpected exception has been detected in native code outside the VM.
> >Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x77f67616
> >Function name=RtlLeaveCriticalSection
> >Library=C:\WINNT\System32\ntdll.dll
> >
> >Current Java thread:
> >        at vtkPanel.UnLock(Native Method)
> >        at vtkPanel.Render(vtkpanel.java:82)
> >        at vtkPanel.paint(vtkpanel.java:90)
> >        at sun.awt.RepaintArea.paint(Unknown Source)
> >        at sun.awt.windows.WComponentPeer.handleEvent(Unknown Source)
> >        at java.awt.Component.dispatchEventImpl(Unknown Source)
> >        at java.awt.Component.dispatchEvent(Unknown Source)
> >        at java.awt.EventQueue.dispatchEvent(Unknown Source)
> >        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown
>Source)
> >
> >        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown
>Source)
> >        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
> >        at java.awt.EventDispatchThread.run(Unknown Source)
> >
> >
> >
> > Internet Mail Message
> > Received from host:      public.kitware.com
> > [208.136.18.25]
> >
> >
> >
> >From: Satheesh Maheswaran
><s.maheswaran at eastman.ucl.ac.uk>@public.kitware.com on
> >03/05/2002 03:23 PM GMT
> >
>
> >                                 Satheesh Maheswaran           To:
>"Gopalakrishnan, Gowri"
> > <s.maheswaran at eastman.ucl.ac.uk>@public.kitware.com
><Gowri.Gopalakrishnan at inteq.com>
> >                                                               Cc:
>"'da5y-ngmn at asahi-net.or.jp'"
> >
><da5y-ngmn at asahi-net.or.jp>,
> >         Sent by:  vtkusers-admin at public.kitware.com
>vtkusers at public.kitware.com (bcc: John
> >                                 03/05/2002 10:23 AM        Anast-JM/PGI)
>
> >                                                       Subject:      Re:
>[vtkusers] Swing Based vtkPanel
> >
>
> >
>
> >
> >
> >
> >
> >hello users
> >
> >I am trying to get vtkPanel.java work with SimpleVTK.java given with VTK.
>Its in
> >vtk/wrapping/java
> >
> >All works, and the panel gets displayed with cone and an exit button.  Here
>awt
> >and swing
> >components are mixed, and the vtkPanel.java extends Canvas, which I think
>is
> >awt.
> >
> >So when i run it and try to interact with it, all key events work and the
>exit
> >button work,
> >but when trying the mouse events. like zooming, it crashes :)
> >
> >has anyone come across the same problem !!! or may be even a solution for
>the
> >problem !!
> >
> >satheesh
> >
> >"Gopalakrishnan, Gowri" wrote:
> >
> >>If you look in the sun's web site on JNI (java native interface) and the
> >>native code for vtkPanel.java you will see that they are quite identical.
> >>It used to be that you could grab drawing surface information and the
>window
> >>handle only from canvas (it is a undocumented codes in jdk). But I have
>come
> >>across something similar in Swing. In vtk 3.2 it is done using canvas, but
> >>in vtk4.0 I do not know. You cannot use anything else other than canvas
>(now
> >>a swing component - I forgot which )to get this information from sun's
>jdk.
> >>
> >>Also with your swing problem - even if you got it to work now you might
>end
> >>up with strange behaviours in swing components when they are put on the
>awt
> >>component. Event handling especially can be troublesome. If you have not
> >>done too much dev. already it is a good/wise idea to change to completely
> >>swing. Mixing awt and swing leads to frustration.
> >>
> >>Gowri
> >>
> >>_______________________________________________
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> >>
> >http://public.kitware.com/cgi-bin/vtkfaq>
> >
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> >>
> >
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> >
> >
> >
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> >
>
>
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>Please keep messages on-topic. Check the FAQ at:
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