IUP (software)
The IUP Portable User Interface is a computer software development kit that provides a portable, scriptable toolkit for GUI building using C and Lua. This allows rapid, zero-compile prototyping and refinement of deployable GUI applications.
It provides this functionality by binding Lua with its C/C++ code, or simply writing C to the API. It supports calling native Windows graphics, native Motif/Lesstif or GTK+ elements, or the developers' own CanvasDraw elements from the Lua scripts or natively in a C/C++ application.
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