4 short questions about the use of GTK

[tjas ni <fdredk gmail com>]

Hi

I just got 4 questions for you. I would be glad if you can take your time to answer them.

1. Is it possible to create a window with no frame? With that I mean
the frame with, minimize, maximize, quit buttons. If so, how?
2. Is it possible to make a box appear/disappear (or change content)
with a button click? I've seen labels can be edited by this, but can
the content of a box change?
3. How can I customize font styles? E.g I want a headline to be
displayed in font size: 16, and some other label should be displayed in
bold text style.
4. Can I connect an event to a gtk.Image? Like when it's clicked it will execute a function? Like a button?


Thanks for any input!