May 26, 2018
Gimp Toolkit for X11 GUI (previous stable version)
GTK is a library for creating graphical user interfaces similar to the Motif “look and feel”. It is designed to be small and efficient, but still flexible enough to allow the programmer freedom in the interfaces created. GTK allows the programmer to use a variety of standard user interface widgets such as push, radio and check buttons, menus, lists and frames. It also provides several “container” widgets which can be used to control the layout of the user interface elements.
GTK provides some unique features. At least, I know of no other widget library which provides them. For example, a button does not contain a label, it contains a child widget, which in most instances will be a label. However, the child widget can also be a pixmap, image or any combination possible the programmer desires. This flexibility is adhered to throughout the library.