platform support

["ahmet alper parker" <aaparker gmail com>]

Dear all, I am planning to develop a c/c++ application and I am searching
for a good gui designer and found gtk+ and glade. I have a simple question.
If I develop a gui with glade will it be platform independent? (or how I can
achieve this?) Do I need gtk+ to be supported at all platforms (in ex.
linux/unix mac windows etc...)
Thanks for your answers
regards
Ahmet Alper Parker