SDPGTK wraps GTK using simple, clean C++ classes and a straightforward hierarchy. It integrates well with existing GTK code, and, unlike existing wrappers for GTK, does not force the developer into a UI "framework". Of particular interest is the sdpGtkObjectContainer class, which implements the proposed GTKML standard, for loading a GTK hierarchy and events from an XML document.
ClassyTk is an extension of Tk based on the ClassyTcl Object system. It adds a lot of improvements to Tk, ranging from drag and drop support (between Tk apps) and a configuration system to a large set of new widgets and commands, written using the object system. It also contains a GUI Builder that can be used to graphically create interfaces. It is invoked via the cbuild command in the bin directory. There are also some sample (but useable) applications created with ClassyTk: a very useable editor, a calculator, a drawing program, and more.
The Xmt Library provides nine custom widgets and over 260 convenience functions designed to make Motif user interface development easier for beginning and advanced programmers. It provides an alternative tool chain that avoids the use of GUI builders. The essence of this approach is to program from the resources file using an extended vocabulary for automatic creation of the widget hierarchy, dynamic layout, and to provide a rapid prototype environment.
Gamma is a dynamically-typed, object-oriented, interpreted programming language that has been designed and optimized to reduce the time required for building applications. It supports the QNX/Photon and Linux/GTK GUI environments, and has a built-in library of over 300 functions. It cuts development times and offers run-time debugging by wedding a C-like syntax to a Lisp interpreter that has been optimized specifically for performance and memory usage.
Fl_Editor is a word-wrapping text editor widget for the FLTK toolkit. It supports CUA-style editing keys, automatic scrollbar display, load and save to file or buffer, and more. Fl_Editor includes subclasses with status and position display, find and replace, a couple of utility widgets, a status panel and a progress bar that can be used independent of any of the editors.
DLDialog offers the capability to draw a variety of widgets, in order to ease the human user in feeding input to the script. The program is designed to be particularly useful to implement system administration scripts. It includes a definition language similar to Tcl/Tk. It can display dialogs (with the same definition) using characters with the tvision/ncurses interface or using graphical windows with the QT/X11 interface.