Simple EditBox widget

Hi everyone,

I am looking for a simple EditBox (a.k.a. TextBox) widget within which
to edit plain text. Basically, a text window to use in a program. Not
much is required: cursor movements via arrows (left, right, up an
down) and, possibly, text selection via shift+arrows (like in
Windows).
Both a text-based solution (ncurses-like) and a GUI-based solution
would be fine.
My priority its simplicity of use at the programming stage.

Thanks

sergei