developing postgresql app using gtk

[paragasu <paragasu gmail com>]

i am very new to gtk programming. still struggling to learn how to
develop program using gtk.
i am using debian linux workstation. but i have to develop gtk program
that run in windows.
is it possible to develop gtk in linux and later on run on windows
without any code modification?

i search all over the internet for tutorial about developing gtk
application that connect to
postgresql database. To my disappointment, i found none. can somebody
point me any information about this?

thank you..