[Wxart2d-users_dev] Delete all objects off a canvas

[Mike G. <mik...@da...>]

How do you delete all the objects off an a2dCanvas?

In previous builds, we used to do this simply by requesting the root 
from the a2dCanvas (which at that time returned an a2dCanvasDocument), 
and then calling DeleteContents(). But now a2dCanvas does not have a 
method for that.

Now, I don't see ANY way to get an a2dCanvasDocument, except through an 
a2dCanvasView. But you can only get an a2dCanvasView from an 
a2dViewCanvas. And to construct an a2dViewCanvas, you have to have an 
a2dCanvasView!

So what is the new equivalent of the old 
a2dCanvas::GetRoot()->DeleteContents()?