<br><div><span class="gmail_quote">On 4/17/06, <b class="gmail_sendername">Kjeld Vestberg Hansen</b> <<a href="mailto:kjeld@aub.dk">kjeld@aub.dk</a>> wrote:</span><blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">
Hi Ashley<br><br>You
should use a vtkCommand instead of then you can get yours
OnLeftButtonDown event to be excurse direct on an object. You use the
method<br>AddObserver and RemoveObserver and you schall only implement execute in the class the inherent from vtkCommand.<br><br>Best regards Kjeld<br><br></blockquote></div><br>
This is exactly the problem I am trying to solve. Would you please be so kind to elaborate?<br>
<br>
Are you telling us we should:<br>
<br>
1. create a callback function.<br>
2. create a vtkCallbackCommand object<br>
3. assign the callback function to vtkCallbackCommand (ie vtkCallbackCommand->SetCallback( callback ))<br>
<br>
4. what next? where do we use AddObserver?<br>
<br>
Thank you in advance!<br clear="all"><br>-- <br><a href="mailto:stoptv@gmail.com">stoptv@gmail.com</a>