[vtkusers] Question for C++ Gurus!

[Chase Yarbrough]

"I would like to have a pointer to the parent class (CSdiogl2View)."  You
can not have pointers to classes, but rather instances of classes.  If it is
a static method it is not associated with any instance of the class.  If you
want it to have access to an instance of CSdiogl2View, you could keep a
static CSdiogl2View* around in the class.

chase

On 3/22/06, Jessica Weiner <suspended at gmail.com> wrote:
>
> I am capturing left mouse click events in my vtk scene. Whenever the left
> mouse button is released I want to change the vtk scene somehow. My event
> handler method (myKeyPressCallback) is a static method and therefor it
> does
> not have access to the variables of the class it belongs to. I would like
> to
> have a pointer to the parent class (CSdiogl2View) inside the event handler
> which has all the actors. How can this be done? I have written my code
> like
> this:
>
>
> vtkCallbackCommand * keypressCB = vtkCallbackCommand::New();
> keypressCB->SetCallback(&CSdiogl2View::myKeyPressCallback);
>
> style = vtkInteractorStyleTrackballActor::New();
> style->AddObserver(vtkCommand::LeftButtonReleaseEvent,keypressCB);
> iren->SetInteractorStyle(style);
>
> Thanks.
> Jess
>
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