When detects that a tk-command must be called, parameters are processed to be recognized by the corresponding toolkit function. Since the Tk toolkit is left (mostly) unmodified, all its primitives ``think'' there is a running Tcl interpreter behind the scene. Consequently, to work with the Tk toolkit, a little set of rewriting rules must be known. These rules are described hereafter.


\begin{note}
This appendix is placed here to permit an {\stk} user to make progr...
...al pages nor to the excellent book by
J.~Ousterhout\cite{Ouster-book}
\end{note}