[vtkusers] callback function is called only once

[rakesh patil]

What exactly you want to implement with the callback function?

On Sat, Mar 10, 2012 at 5:07 PM, Khan <hammadtahirkhan at hotmail.com> wrote:

> Hi,
> I have a problem with callback function I have added observer for :
>
> vtkCommand::LeftButtonPressEvent
> vtkCommand::LeftButtonReleaseEvent
> vtkCommand::MouseMoveEvent
>
> if it is once called for *LeftButtonPressEvent* it is not called again
> I also *intitialize * and *start * my interactor after
> *LeftButtonPressEvent*
> if I do not  *intitialize * and *start * my callback function is called
> again and again but I can not move my objects in widget.
>
> kindly help me in this regard.
>
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