wxPython: Splitter Window, set size of panel?

[WolfShield]

Hey guys,
I actually have two questions here. I've made a splitter window with two panels and set the min size to '200'. But how do I make one panel not be allowed to re-size to larger than '200'?

And the second question is: if I wanted to put a button in one of the panels that, when pressed, would hide the panel ( make it very small to the left, with a button that would show, or "un-hide" it ), how would I go about that?

Thanks in advance,

- WolfShield