XBasic

XBasic is a comprehensive program development environment that integrates a powerful editor, compiler, debugger, function libraries and GuiDesigner into a seamless working environment that encompasses the whole process of creating fast, efficient, reliable, portable 32-bit programs.  XBasic screenshot.

XBasic programs can create any number of windows, each of which supports input from keyboard & mouse, and output of text & graphics.  And sophisticated GUI programs are easy to develop with the interactive graphical GuiDesigner built right into the program development environment.