[vtkusers] ChoosePixelFormat failed error

[David Gobbi]

By the way, I did a quick google search, and people have been
asking about this Java/PixelFormat problem for years and years.
I didn't look around enough to see if anyone reported a fix.

On Wed, Feb 16, 2011 at 5:42 PM, David Gobbi <david.gobbi at gmail.com> wrote:
> Hi Mark,
>
> I've seen this sort of ChoosePixelFormat issue before, it seems
> to occur sometimes when VTK is used together with a GUI toolkit,
> and is even more likely when a wrapper-language is involved.
>
> As far as I understand it, when the VTK render window is
> embedded within a GUI window (in your case, the Java
> canvas/panel), the GUI sometimes generates a window that has
> a pixel format that is incompatible with VTK, and then embeds
> a vtkRenderWindow in that window.
>
> For VTK/wxPython, I remember having to do lots of tweaks in
> order to get wx and VTK to play nice with each other.  My
> debugging technique was to add print statements to the code
> on both the GUI side and the VTK side when either one of them
> made any calls related to setting up Windows, so that I could
> make sure that everything was happening in the correct order.
>
> It seems like a waste now, since I never really used wx after
> that.   Anyways, a similar technique could be used to sort out
> what VTK/Java might be doing wrong.
>
>  - David
>
>
> On Wed, Feb 16, 2011 at 4:38 PM, Mark Roden <mmroden at gmail.com> wrote:
>> Hi all,
>>
>> I have vtk 5.9 (git sync to head) wrapped in java, compiled in vs2008
>> release mode.  Every three to five times I run my app (three
>> imageviewer2 objects, one vtkSmartVolumeMapper to a 3D rendering), I
>> get a ChoosePixelFormat error that crashes the program abruptly when
>> running on Windows 7 64 bits.
>>
>> What's going on here?  If it's a driver bug, it's persistent across
>> three different machines with three different graphics cards (one is a
>> homebuilt machine, the other two are laptops).  Is there a way to
>> debug this?  It's becoming a showstopping bug.
>>
>> Thanks,
>> Mark
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>