[vtkusers] In OSX vtk window does not get the focus

[Eleftherios Garyfallidis]

Hi David,

Thank you for your quick answer.

Just to make something clear here. I am not talking about keyboard focus
here. The window doesn't take the focus at all. So, what happens is that
the window appears but it is hidden behind other windows and you need to
press Command + Tab to try to find the VTK window. The same happens even
when you use pythonw. After finding the window and click on it then you
have the keyboard events working.
As you understand this is frustrating for many of our users because they
don't get any indication that the application is running.

Also, I am not happy going into the direction of making an application
bundle because I want to open vtk windows from inside ipython in a module
like fashion as you do matlplotlib.show().
And all this works absolutely fine with VTK in Linux. We use vtk
visualization from inside a python library called Dipy which is  a module
(a python library) rather than a standalone application. But perhaps there
is something that I am missing here. Let me know what you think.

Best regards,
Eleftherios





On Thu, Nov 12, 2015 at 5:58 PM, David Gobbi <david.gobbi at gmail.com> wrote:

> Hi Eleftherios,
>
> On OS X the system python is properly set up to receive keyboard focus,
> but the anaconda python is not.  In general, in order for a program to
> receive keyboard events, it must be part of an app bundle, though I'm
> sure there are exceptions.  I remember that many, many years ago it
> was necessary to run "pythonw" to get a functional GUI app in python.
>
> If you create a bundle for your python program, you can get keyboard
> events regardless of whose python you use.
>
>  - David
>
>
>
> On Thu, Nov 12, 2015 at 3:32 PM, Eleftherios Garyfallidis <
> garyfallidis at gmail.com> wrote:
>
>> Hello all,
>>
>> In OSX using vtk 6 or vtk 5 installed from anaconda the window does not
>> get the focus.
>>
>> This should be trivial to test. You can just run the hello world example
>> and see it by yourself.
>> http://www.vtk.org/Wiki/VTK/Examples/Python/Cylinder
>>
>> We observed the same issue both with osx 10.9 and 10.11
>>
>> Best regards,
>> Eleftherios
>>
>
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