scaling?

[blurk <blurk telia com>]

Hello.
Im trying to make a simple game..
But i cant seem to find any info about how you make the "window"
so it scales as you resize it..
like.. as it is now.. if you make it bigger.. it will result in a lot of 
uggly emty space..  not a "bigger but the same" window.. 

sorry for my bad english.. :(
i am reading the howto wich i found in some ftp somewhere..
but i cant seem to find that info..
please.. can you just show me an example.. 
Thanks.
/kent.