What is GDK?

GDK is basically a wrapper around the standard Xlib function calls. If you are at all familiar with Xlib, a lot of the functions in GDK will require little or no getting used to. All functions are written to provide an way to access Xlib functions in an easier and slightly more intuitive manner. In addition, since GDK uses GLib (see below), it will be more portable and safer to use on multiple platforms.