clickTk is a graphical editor to generate Perl/Tk GUI.
Create modal forms to input values with a few lines of code.
C/C++ library to add light and intuitive GUI to OpenGL and DX programs
A Lua and XML Graphical User Interface
Advanced script editor IDE for squirrel/pawn/lua and more
Qt chart widget.
Windows Winfroms clean and simple
A C++ Implementation of the MIT OpenBlocks Java Code
A visual markup editor that runs in a browser.