[vtkusers] Error during cleanup: wglMakeCurrent failed in Clean()

Zamir Khan zkhan at modusmed.com
Thu Nov 26 12:15:11 EST 2009 

Francois, I have confirmed that the suggested fix resolves the issue I 
was seeing - it now works as expected on both platforms.

Thanks a lot for your help,
Zamir

Francois Bertel wrote:
> Thanks for pointing at to this bug report.
>
> Can you try it on your local copy by changing line 111 (void
> vtkWin32OpenGLRenderWindow::Clean() ):
>
> from
>
> if (wglMakeCurrent(NULL, NULL) != TRUE)
>
> to
> if (wglMakeCurrent(this->DeviceContext, NULL) != TRUE)
>
>
> and tell us if it fixes your issue with Intel. If so, I'll commit the 
> patch.
>
> On Thu, Nov 26, 2009 at 9:53 AM, Zamir Khan <zkhan at modusmed.com> 
> <mailto:zkhan at modusmed.com%3E> wrote:
> > My apologies, I misread the status, it is still open and not fixed. I am
> > fairly certain that this is the problem I'm seeing.
> >
> > Zamir Khan wrote:
> >>
> >> I think I've found the issue I'm encountering:
> >> http://www.cmake.org/Bug/bug_view_advanced_page.php?bug_id=7119, but it
> >> is supposed to be fixed? Was it possibly fixed in one location but not
> >> another, or perhaps fixed and later reverted? I am unable to see the
> >> diff for that particular code change.
> >>
> >> Zamir Khan wrote:
> >> > Yes. First of all, thank you André for relaying that experience.
> >> > However, I did update the Intel driver (to 7.14.10.1504) and I 
> still see
> >> > the issue. As another test, I disabled the Intel graphics 
> acceleration
> >> > altogether and then I do not see this error occur.
> >> >
> >> > Francois Bertel wrote:
> >> > > Zamir, have you tried to upgrade your Intel driver as André did?
> >> > >
> >> > >
> >> > > On Thu, Nov 26, 2009 at 9:08 AM, Zamir Khan 
> <zkhan at modusmed.com> <mailto:zkhan at modusmed.com%3E>
> >> > > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > wrote:
> >> > > > I'm developing on a Windows 7/ VS 2008 platform with an 
> NVIDIA card
> >> > > - the
> >> > > > error does not occur on this system. The test system that
> >> > reproduces the
> >> > > > error is running Windows Vista and has Intel integrated graphics.
> >> > > >
> >> > > > Francois Bertel wrote:
> >> > > >>
> >> > > >> error 6 is ERROR_INVALID_HANDLE
> >> > > >>
> >> > > >> ref: 
> http://help.netop.com/support/errorcodes/win32_error_codes.htm
> >> > > >>
> >> > > >> the line vtkWin32OpenGLRenderWindow::Clean() that triggers this
> >> > > error code
> >> > > >> is:
> >> > > >>
> >> > > >> wglMakeCurrent(NULL, NULL);
> >> > > >>
> >> > > >> According to the spec, NULL is a valid handle. Maybe it is a bug
> >> > on MFC
> >> > > >> side?
> >> > > >> Which Windows version/Visual Studio do you have?
> >> > > >>
> >> > > >>
> >> > > >> On Wed, Nov 25, 2009 at 4:41 PM, Zamir Khan 
> <zkhan at modusmed.com> <mailto:zkhan at modusmed.com%3E>
> >> > > >> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > >> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > >> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > wrote:
> >> > > >> > I believe I've fixed the activation context exception (thanks
> >> > for the
> >> > > >> > help
> >> > > >> > there!), but the initial problem still remains - changing the
> >> > > order of
> >> > > >> > the
> >> > > >> > cleanup did not help, any other thoughts?
> >> > > >> >
> >> > > >> > Is there a good example of the specific order that VTK object
> >> > cleanup
> >> > > >> > should
> >> > > >> > occur in and any specialized calls to be aware of (i.e. 
> Finalize,
> >> > > >> > RemoveAllViewProps, etc)?
> >> > > >> >
> >> > > >> > Francois Bertel wrote:
> >> > > >> >>
> >> > > >> >> Googling the error message you just gave, shows it has to do
> >> > > with MFC
> >> > > >> >> and maybe related to call to
> >> > > >> >> ActivateActCtx(); / DeactivateActCtx(); in some wrong order.
> >> > > >> >>
> >> > > >> >> On Wed, Nov 25, 2009 at 11:51 AM, Zamir Khan
> >> > > <zkhan at modusmed.com> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > >> >> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > > >> >> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
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> >> > > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E%3E>
> >> > > wrote:
> >> > > >> >> > Thanks Francois - I have tried this before (it *does* 
> seem the
> >> > > >> >> > logical
> >> > > >> >> > thing
> >> > > >> >> > to do), but the initial problem remains and I also then 
> see an
> >> > > >> >> > additional
> >> > > >> >> > exception occur on all platforms:
> >> > > >> >> >
> >> > > >> >> > "Unhandled exception at 0x77644401 in XXXX.exe: 0xC015000F:
> >> > > >> >> > The
> >> > > >> >> > activation
> >> > > >> >> > context being deactivated is not the most recently 
> activated
> >> > one."
> >> > > >> >> >
> >> > > >> >> > It could be that this is a step in the right direction, but
> >> > > >> >> > more
> >> > > >> >> > changes
> >> > > >> >> > are
> >> > > >> >> > needed - I'm not sure!
> >> > > >> >> >
> >> > > >> >> > Francois Bertel wrote:
> >> > > >> >> >>
> >> > > >> >> >> Hello,
> >> > > >> >> >>
> >> > > >> >> >> Swap your two parts: delete the renderer first and 
> then the
> >> > > >> >> >> renderwindow.
> >> > > >> >> >>
> >> > > >> >> >>
> >> > > >> >> >> The reason is that RemoveAllViewProps() (implemented in
> >> > > >> >> >> vtkViewport.cxx, superclass of vtkRenderer) calls
> >> > > >> >> >> ReleaseGraphicsResources() on each prop which requires
> >> > > (indirectly)
> >> > > >> >> >> a
> >> > > >> >> >> valid window. For example, a prop like vtkActor will call
> >> > > >> >> >> ReleaseGraphicsResources() on its texture to release the
> >> > > >> >> >> OpenGL
> >> > > >> >> >> texture object id.
> >> > > >> >> >>
> >> > > >> >> >>
> >> > > >> >> >> On Wed, Nov 25, 2009 at 11:19 AM, Zamir Khan
> >> > > <zkhan at modusmed.com> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > >> >> >> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E>
> >> > > >> >> >> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > > >> >> >> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E>
> >> > > >> >> >> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
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> >> > > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
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> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E%3E>
> >> > > >> >> >> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E>
> >> > > >> >> >> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
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> >> > > <mailto:zkhan at modusmed.com%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
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> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
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> >> > > >> >> >> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > >> >> >> <mailto:zkhan at modusmed.com%3E%3E%3E> 
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> >> > > <mailto:zkhan at modusmed.com%3E%3E%3E> 
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> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
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> >> > > <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E%3E%3E>
> >> > > >> >> >> wrote:
> >> > > >> >> >> > I am seeing the following errors from a VTK 5 / MFC
> >> > application
> >> > > >> >> >> > when
> >> > > >> >> >> > I
> >> > > >> >> >> > close
> >> > > >> >> >> > it:
> >> > > >> >> >> >
> >> > > >> >> >> > ERROR: In 
> ..\..\Rendering\vtkWin32OpenGLRenderWindow.cxx,
> >> > > line 113
> >> > > >> >> >> > vtkWin32OpenGLRenderWindow (0685AF70): wglMakeCurrent
> >> > failed in
> >> > > >> >> >> > Clean(),
> >> > > >> >> >> > error: 6
> >> > > >> >> >> >
> >> > > >> >> >> > ERROR: In 
> ..\..\Rendering\vtkWin32OpenGLRenderWindow.cxx,
> >> > > line 113
> >> > > >> >> >> > vtkWin32OpenGLRenderWindow (0698BAE8): wglMakeCurrent
> >> > failed in
> >> > > >> >> >> > Clean(),
> >> > > >> >> >> > error: 6
> >> > > >> >> >> >
> >> > > >> >> >> > The error will appear 2 or 3 times in the debug output
> >> > > >> >> >> > file,
> >> > > >> >> >> > depending
> >> > > >> >> >> > on
> >> > > >> >> >> > what actions I have taken in the program (I assume 
> for the
> >> > > >> >> >> > instances
> >> > > >> >> >> > of
> >> > > >> >> >> > vtkRenderWindow that are problematic). Also, I can only
> >> > > reproduce
> >> > > >> >> >> > it
> >> > > >> >> >> > on
> >> > > >> >> >> > certain platforms (doesn't happen on machine with 
> NVIDIA,
> >> > > but does
> >> > > >> >> >> > on
> >> > > >> >> >> > machine with Intel integrated graphics). I have searched
> >> > > >> >> >> > the
> >> > > >> >> >> > mailing
> >> > > >> >> >> > list
> >> > > >> >> >> > and the recommendation appears to be to make sure to
> >> > Finalize()
> >> > > >> >> >> > the
> >> > > >> >> >> > vtkRenderWindow (there are 3 of them being instantiated
> >> > in this
> >> > > >> >> >> > application). In the destructor of each of the 
> classes that
> >> > > >> >> >> > instantiate
> >> > > >> >> >> > vtkRenderWindows, I have the following code snippets:
> >> > > >> >> >> >
> >> > > >> >> >> > if (renWin)
> >> > > >> >> >> > {
> >> > > >> >> >> > renWin->Finalize();
> >> > > >> >> >> > renWin->Delete();
> >> > > >> >> >> > }
> >> > > >> >> >> > if (renderer)
> >> > > >> >> >> > {
> >> > > >> >> >> > renderer->RemoveAllViewProps();
> >> > > >> >> >> > renderer->Delete();
> >> > > >> >> >> > }
> >> > > >> >> >> >
> >> > > >> >> >> > However, this does not resolve the issue. Any help is
> >> > > appreciated!
> >> > > >> >> >> >
> >> > > >> >> >> > Thanks,
> >> > > >> >> >> > Zamir
> >> > > >> >> >> >
> >> > > >> >> >> > --
> >> > > >> >> >> > Zamir Khan
> >> > > >> >> >> > Modus Medical Devices
> >> > > >> >> >> > e-mail: zkhan at modusmed.com 
> <mailto:zkhan at modusmed.com> <mailto:zkhan at modusmed.com> 
> <mailto:zkhan at modusmed.com%3E>
> >> > > >> >> >> > <mailto:zkhan at modusmed.com> 
> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E>
> >> > <mailto:zkhan at modusmed.com> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > >> >> >> > <mailto:zkhan at modusmed.com> 
> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > > >> >> >> > <mailto:zkhan at modusmed.com> 
> <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > > >> >> >> > <mailto:zkhan at modusmed.com%3E> 
> <mailto:zkhan at modusmed.com%3E%3E>
> >> > > >> >> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E> <mailto:zkhan at modusmed.com%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E>
> >> > > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E>
> >> > <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E> 
> <mailto:zkhan at modusmed.com%3E%3E%3E%3E%3E%3E>
> >> > > >> >> >> >
> >> > > >> >> >> > _______________________________________________
> >> > > >> >> >> > Powered by www.kitware.com
> >> > > >> >> >> >
> >> > > >> >> >> > Visit other Kitware open-source projects at
> >> > > >> >> >> > http://www.kitware.com/opensource/opensource.html
> >> > > >> >> >> >
> >> > > >> >> >> > Please keep messages on-topic and check the VTK FAQ at:
> >> > > >> >> >> > http://www.vtk.org/Wiki/VTK_FAQ
> >> > > >> >> >> >
> >> > > >> >> >> > Follow this link to subscribe/unsubscribe:
> >> > > >> >> >> > http://www.vtk.org/mailman/listinfo/vtkusers
> >> > > >> >> >> >
> >> > > >> >> >>
> >> > > >> >> >>
> >> > > >> >> >>
> >> > > >> >> >> --
> >> > > >> >> >> François Bertel, PhD | Kitware Inc. Suite 204
> >> > > >> >> >> 1 (518) 371 3971 x113 | 28 Corporate Drive
> >> > > >> >> >> | Clifton Park NY 12065, USA
> >> > > >> >> >> _______________________________________________
> >> > > >> >> >> Powered by www.kitware.com
> >> > > >> >> >>
> >> > > >> >> >> Visit other Kitware open-source projects at
> >> > > >> >> >> http://www.kitware.com/opensource/opensource.html
> >> > > >> >> >>
> >> > > >> >> >> Please keep messages on-topic and check the VTK FAQ at:
> >> > > >> >> >> http://www.vtk.org/Wiki/VTK_FAQ
> >> > > >> >> >>
> >> > > >> >> >> Follow this link to subscribe/unsubscribe:
> >> > > >> >> >> http://www.vtk.org/mailman/listinfo/vtkusers
> >> > > >> >> >>
> >> > > >> >> >>
> >> > > >> >> >>
> >> > >
> >> > > 
> ------------------------------------------------------------------------
> >> > > >> >> >
> >> > > >> >> >
> >> > > >> >>
> >> > > >> >>
> >> > > >> >>
> >> > > >> >> --
> >> > > >> >> François Bertel, PhD | Kitware Inc. Suite 204
> >> > > >> >> 1 (518) 371 3971 x113 | 28 Corporate Drive
> >> > > >> >> | Clifton Park NY 12065, USA
> >> > > >> >> _______________________________________________
> >> > > >> >> Powered by www.kitware.com
> >> > > >> >>
> >> > > >> >> Visit other Kitware open-source projects at
> >> > > >> >> http://www.kitware.com/opensource/opensource.html
> >> > > >> >>
> >> > > >> >> Please keep messages on-topic and check the VTK FAQ at:
> >> > > >> >> http://www.vtk.org/Wiki/VTK_FAQ
> >> > > >> >>
> >> > > >> >> Follow this link to subscribe/unsubscribe:
> >> > > >> >> http://www.vtk.org/mailman/listinfo/vtkusers
> >> > > >> >>
> >> > > >> >>
> >> > >
> >> > > 
> ------------------------------------------------------------------------
> >> > > >> >
> >> > > >> >
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >> --
> >> > > >> François Bertel, PhD | Kitware Inc. Suite 204
> >> > > >> 1 (518) 371 3971 x113 | 28 Corporate Drive
> >> > > >> | Clifton Park NY 12065, USA
> >> > > >> _______________________________________________
> >> > > >> Powered by www.kitware.com
> >> > > >>
> >> > > >> Visit other Kitware open-source projects at
> >> > > >> http://www.kitware.com/opensource/opensource.html
> >> > > >>
> >> > > >> Please keep messages on-topic and check the VTK FAQ at:
> >> > > >> http://www.vtk.org/Wiki/VTK_FAQ
> >> > > >>
> >> > > >> Follow this link to subscribe/unsubscribe:
> >> > > >> http://www.vtk.org/mailman/listinfo/vtkusers
> >> > > >>
> >> > >
> >> > > 
> ------------------------------------------------------------------------
> >> > > >
> >> > >
> >> > >
> >> > >
> >> > > --
> >> > > François Bertel, PhD | Kitware Inc. Suite 204
> >> > > 1 (518) 371 3971 x113 | 28 Corporate Drive
> >> > > | Clifton Park NY 12065, USA
> >> > > _______________________________________________
> >> > > Powered by www.kitware.com
> >> > >
> >> > > Visit other Kitware open-source projects at
> >> > > http://www.kitware.com/opensource/opensource.html
> >> > >
> >> > > Please keep messages on-topic and check the VTK FAQ at:
> >> > > http://www.vtk.org/Wiki/VTK_FAQ
> >> > >
> >> > > Follow this link to subscribe/unsubscribe:
> >> > > http://www.vtk.org/mailman/listinfo/vtkusers
> >> > >
> >> > > 
> ------------------------------------------------------------------------
> >> > _______________________________________________
> >> > Powered by www.kitware.com
> >> >
> >> > Visit other Kitware open-source projects at
> >> > http://www.kitware.com/opensource/opensource.html
> >> >
> >> > Please keep messages on-topic and check the VTK FAQ at:
> >> > http://www.vtk.org/Wiki/VTK_FAQ
> >> >
> >> > Follow this link to subscribe/unsubscribe:
> >> > http://www.vtk.org/mailman/listinfo/vtkusers
> >> > 
> ------------------------------------------------------------------------
> >> _______________________________________________
> >> Powered by www.kitware.com
> >>
> >> Visit other Kitware open-source projects at
> >> http://www.kitware.com/opensource/opensource.html
> >>
> >> Please keep messages on-topic and check the VTK FAQ at:
> >> http://www.vtk.org/Wiki/VTK_FAQ
> >>
> >> Follow this link to subscribe/unsubscribe:
> >> http://www.vtk.org/mailman/listinfo/vtkusers
> >> 
> ------------------------------------------------------------------------
> >
>
>
>
> -- 
> François Bertel, PhD | Kitware Inc. Suite 204
> 1 (518) 371 3971 x113 | 28 Corporate Drive
> | Clifton Park NY 12065, USA
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at 
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the VTK FAQ at: 
> http://www.vtk.org/Wiki/VTK_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.vtk.org/mailman/listinfo/vtkusers
> ------------------------------------------------------------------------

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