XForms is a GUI toolkit based on Xlib. It comes with a rich set of objects such as buttons, browsers, sliders, and menus integrated into an elegant event/object callback execution model that allows for fast and easy construction of X applications. In addition, the library supports loading and writing images, format conversion, and simple image processing. It consists of a flexible set of C-routines that can be used in C and C++ programs, is efficient and portable, and runs on all major Unix platforms and OpenVMS, OS/2, and Windows NT.
