Thank you Hans, the code would be :

\unexpanded\def\HeadTitle#1#2%
  {\hbox to \hsize \bgroup
   \hfill
   \setupframed[offset=0.5em,frame=off]
   \inframed[width=fit,align=left,frame=off]{\darkred#1}%

\inframed[width=fit,align=right,leftframe=on,rulethickness=4pt,framecolor=darkred]{#2}%
   \egroup}

Thank you Hans, the code would be:
Could I ask you how to have the chapter number is like the
http://www.pragma-ade.nl/general/manuals/cont-enp.pdf book?
This is a macro Metafun but I do not quite understand the mechanism.
thank you,
Fabrice

2016-07-06 15:03 GMT+02:00 Hans Hagen <pragma@wxs.nl>:

> On 7/6/2016 1:37 PM, Fabrice Couvreur wrote:
>
>>
>> Hello,
>> In the manual, there is the macro below.
>> Why theword "Matrice" is not on the same baseline as the number "1" ?
>> thank you,
>> Fabrice
>>
>> \unexpanded\def\HeadTitle#1#2%
>>   {\hbox to \hsize \bgroup
>>    \setupframed[height=1cm,offset=0.5em,frame=on]
>>    \framed[width=fit,align=left]{\darkred#1}%
>>
>>
>> \framed[width=fit,align=right,leftframe=on,rulethickness=4pt,framecolor=darkred]{#2}%
>>     \egroup}
>>
>> \setuphead
>>    [chapter]
>>    [command=\HeadTitle]
>>
>> \starttext
>>
>> \startchapter
>>   [title={Matrice}]
>>
>>
>> \stopchapter
>>
>> \stoptext
>>
>
> fonts and such ... better use:
>
> \unexpanded\def\HeadTitle#1#2%
>   {\hbox to \hsize \bgroup
>    \inframed[width=fit,align=left]{\darkred#1}%
>
>
> \inframed[width=fit,align=right,leftframe=on,rulethickness=4pt,framecolor=darkred]{#2}%
>    \egroup}
>
> -----------------------------------------------------------------
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