Ahoi,
 
Following a previous discussion, I've been advised to "try to avoid \switchtobodyfont and use \definedfont or \definefont instead".
 
(1) What's the difference between \definefont and \definedfont ?
 
(2) In the underneath example...
 
(2a) how to implement \define(d)font for font switching ?
 
(2b) how to define \myFontHook ?
 
Thanks,
Alan
 
\usemodule[t-lettrine]
 
\usetypescriptfile[tps_arial]
\usetypescript[arial]
\definetypeface[myFont][arial]
 
\usetypescriptfile[tps_timesnewroman]
\usetypescript[timesnewroman]
\definetypeface[myOtherFont][timesnewroman]
 
\def\myFontSize{12pt}
\def\myOtherFontSize{20pt}
 
\setupbodyfont[myFont,\myFontSize]
 
\setuphead[chapter][style={\switchtobodyfont[myOtherFont,\myOtherFontSize]}]
 
\starttext
 
\chapter{Chapter One}
 
%\lettrine[FontHook={\myFontHook}]{T}{hus}, I came to the conclusion that the designer of a new
\lettrine{T}{hus}, I came to the conclusion that the designer of a new
system must not only be the implementer and first large-- scale user; the designer should also write
the first user manual.
 
\stoptext