Programming technologies 21th century.
The development of visual programming system today is the most dynamic and quickly developing part of tool software. It's a future of programming and today possible to say about a new algorithm-programming meta-language - VISUAL LANGUAGE, wich operates with widgets(properties and methods) and events.
System-independence is characteristic of VISUAL METALANGUAGE, but it is also adaptable to some of the existing programming language.
Ada-95 plus Tcl/Tk is the way to build powerful GUI application.easy