Changing the contens of boxes

[Jorge Santos <jsf ciencias unam mx>]

Hello, I'm just starting to use GTK+ for an Interfaces Design course
I'm taking at school and I need to change part of a window at the
press of a button, is this possible? or do do I have to create a new
window?, if this is so, how do I go about destroying the new window
and creating the new one?

Any help, pointers, etc. greatly appreciated.


TIA,

jorge