[Visualpython-users] Zoom event

[Arthur <ajs...@op...>]

Having more trouble than expected trying to accomplish some feedback when a
scene is being zoomed.  Specifically, I have reason to want to know the
distance of the camera from the scene.center throughout the zoom.

But I am finding that the mouse events that would allow me to accomplish
this easily only apply to the left mouse events.

I can identify a "middle" press, but if I do a 

while scene.mouse.press == 'middle':
   <get me the distance>

I can't find a way to get an event that will turn it off.  Same with
scene.mouse.button.

Anyone have ideas?

Art