I’m making an app and wish it to be compatible with UNIX and win32. I’ve split the app up so hopefully only 1 layer out of 4 needs to be changed (because of the fundamental differences).

So what I’m asking is has anyone played with the following or are there others.

What’s the most accepted cross platform GUI?

Here’s a few I have found...

GTK: http://www.dropline.net/gtk/
WxWidgets: http://www.wxwidgets.org/
Qt: http://www.trolltech.com/products/qt/index.html

BTW: I didn’t really have a clue where to post this mods...