[vtkusers] How to get Qt QPushButton to work with VTK

[Richard Haney]

Hello All,

I am new to Qt and VTK and I finally got the correct installation of the 
vtk-5.0.1 to work with Qt4.1.4 and have built a simple GUI with QVTKWidget 
but now have ran into another (probably simple problem) regarding 
QPushButton and the QVTKWidget.  I am building a GUI that I want to display 
the "cone" actor from VTK after the user clicks the QPushButton displayed on 
the GUI.  I know that Qt uses SLOTS and SIGNALS to handle events.

What is the simplest way to get a Qt button (QPushButton) to load a Cone 
actor to the QVTKWidget (which is displayed in the GUI)?  Initially I would 
like the GUI to display a Blank canvas which the user will fill with a newly 
created CONE when he/she pushes the Qt QPushButton Object.

Thanks in advance for any help/hints.