wxGLCanvas confusion, can't find out how to use it

[rucs_hack]

I'm using wxWidgets to create an opengl viewer for a project of mine (porting an existing app to wxWidgets). I've built the gui and put the wxGLCanvas widget on the main window inside a BoxSizer,where it shares the main wndow with some sliders for basic rotations. It all compiles fine but I can't for the life of me find out how I'm supposed to actually draw with it.

Specifically, the wxGLCanvas widget is declared private, and I can't find out how I'm meant to access its Render/refresh/resize events. All the examples I've found have people inheriting from wxGLCanvas and using that, and that doesn't seem to apply, since I used the wxGLCanvas from the 'Advanced' tab. The most I can get is:

void handleDisplay(wxGLCanvas * canvas) {

}

from double clicking on the wxGLCanvas itself. I can't find any documentation about that either

Pretty much going round in circles here, any nudges in the right direction would be vastly appreciated.