What shall I do to use GTK+ libs in a Free Pascal program for Windows? I'm trying to do it, but several errors occurs. I use fpc 1.0 and have gtk-1.3.dll, gdk-1.3.dll, glib-1.3.dll. Is there another way to display windows.. buttons ..etc.. with Free Pascal for both Linux and Windows? (Excuse my poor English, I understand quite a lot but I can't write it correctly.)

To use gtk under win32 you need the 1.0.2 release. See the examples and lazarus code how to use gtk. When you don't use any other system dependent calls then gtk apps can be compiled for linux and win32.