Quick question, is there a way (or what's the easiest way) to open a window as modal... i.e. only that window accepts kayboard and mouse input, all other windows ignore input until the modal window is closed?

you will need to specify 'disabled' for all other windows

I feared that might be the answer... got a lot of windows. Oh well, thanks anyway.

I just had an idea:
you could create custom class WindowOverlay : Window
extend its draw method and just render semi-transparent black rectangle over the screen
set its rectangle to full screen
set the Window::level of the window that its between all others and the modal window
background windows level=0
WindowOverlay level=1
modal window level=2

clicking outside of modal window will always detect the overlay window because it's stretched fullscreen and is above the background windows

Hey, great idea. I came up with a similar idea, but your method is cleaner. I'll give it a try.