"I first want to deploy it using a terminal interface instead of a GUI interface for the simple reason that there will be times when it's better to run thin machines without installing X11, and it might be easier to implement rather than jumping right into GTK or some X11 widget toolkit. So does anyone know of any character based UI libraries that are available for C?"
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Lysol asks: "Many years ago I wrote a POS (Point of Sale System) in a language (that's amazingly still around) called PowerBasic. One thing I really liked about it was the ability to do inline assembly and compile to machine code, which was a very big deal for DOS-based Basic code. For my POS app I used many text graphic libraries that gave me a poor-mans GUI for DOS. Now I'm going back to school and I need to brush up on my C, and that got me thinking about developing it in Linux. When I deployed this system it ran on old 386 machines. A lot of newer systems run on expensive hardware and it would be cool to provide a free GPL POS on Linux that can function as aterminal/text based solution. If you've ever used a cash register, sometimes GUI stuff with a mouse is not the best...especially for end users." One only has to look at FreshMeat to find examples of text UI libraries (and I'm sure that list isn't a complete one), but which ones have you used that you found enjoyable to develop in? How easy would it be to develop a text-mode application that has a UI that is just as capable as any GUI?