Introduction This paper describes a portable interface for Tk. If you don't know what is Tk, read the www documents about Tcl/Tk. Porting Tk to new UI environments has been a matter of debate for a long time. Our project was to find out is it possible to make an portable interface for Tk and if it is, how it can be done. The result is a proof of the Tk's portability concept. In this document we ...