[vtkusers] vtkRenderWindow catch the arrow keys

[Stéphane CALANDE]

Thank you very much Denis.

The answer is :



std::string key_sym (interactor->GetKeySym());

  if ((key_sym.compare("Up")==0) || (key_sym.compare("KP_Up")==0))

      {
            // CODE
      }



Have a nice day,


Stéphane




2008/11/13 Denis Barbier <bouzim at gmail.com>

> On 2008/11/13 Stéphane CALANDE wrote:
> > Hi vtk-list,
> >
> > I have a question about vtkRenderWindow.
> >
> > I don't manage to catch the hits of arrow keys.
> [...]
> > if (event == vtkCommand::KeyPressEvent)
> >       {
> >       int code = ????
>
> >       if ( code == ????(LEFT_ARROW) )
> >           {
> >                  // CODE
> >           }
> [...]
>
> You can set DebugOn on your vtkRenderWindowInteractor to print some useful
> information. vtkRenderWindowInteractor::GetKeyCode returns a char, so it
> won't
> help.  I guess that you could use GetKeySym instead and check for
> Left/Right/Up/Down.
> After quickly browsing source files, I believe that these strings are
> platform agnostic,
> but you will have to check if portability is an issue for you.
>
> Denis
>
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