qt or gtk?

[Courageous]

>Now I feel stupid. I thought Qt was free to use if your software is free, 
>but costs money if you plan to sell it. There are two versions - commercial 
>and free software, and you have to buy a license if you want to use the 
>commercial version. I assumed the difference between the two is only in 
>name and license, and the source is the same, however.

Actually, I believe that what you said is correct for the Linux platform,
but I'm not sure. What I am sure of is that Qt is not free for Windows,
irrespective of how you intend to use it.

C//