Hello,
I have tried many approaches, but it still does not work. Everything is
passed to the dm-1.tex file (font, footer) but not the header.
Have you tested the files, does it work for you ?
Sorry to insist, but I really need this way of doingThank you
Fabrice

##########
MyLayout.mkvi
##########

\startenvironment MyLayout

\setupbodyfont[12pt,pagella]

\definelayout
   [noheader]
   [header=2\lineheight,
    headerdistance=\lineheight,
    backspace=2cm,
    width=middle,
    topspace=\dimexpr 2cm-\headerheight-\headerdistance\relax,
    footer=\lineheight,
    height=middle]

\setuplayout
   [header=\zeropoint,
    headerdistance=\lineheight,
    backspace=2cm,
    width=middle,
    topspace=\dimexpr 2cm-\headerheight-\headerdistance\relax,
    footer=\lineheight,
    height=middle]

\definelayout[1][noheader]

\setuppagenumbering[alternative=doublesided,location=]

\setupfootertexts[\tfxx Page \pagenumber\,/\,\lastpage][]

\definecolor[darkgray]   [s=.25]

\setupbackgrounds
  [header]
  [text]
  [
    frame=off,
    bottomframe=on,
    framecolor=darkgray,
    rulethickness=2pt,
  ]

\defineframed[headerframed]
             [
               frame=off, % For visualization set this to on
               height=fit,
               width=fit,
               location=bottom,
               boffset=\lineheight,
             ]

\starttexdefinition MyHeader #where #day #month #year #title #number #time

    \setupheadertexts
      [{\headerframed[align=middle, foregroundstyle=bold,
foregroundcolor=red]
            {#title n\high{o}\,#number}}]

    \setupheadertexts
      [{\headerframed[align=flushleft, foregroundstyle=\ssx]
          {Lycée JANSON DE SAILLY \\ \date[d=#day,m=#month,y=#year]}}]
      [{\headerframed[align=flushright, foregroundstyle=\ssx]
          {#where \\ {#time}}}]

\stoptexdefinition

\stopenvironment


#######
dm-1.tex
#######

\startcomponent dm-1

  \component MyLayout

  \MyHeader{Seconde}{17}{08}{2017}{Devoir surveillé}{1}{1h\,30m}

  \input knuth

\stopcomponent

2017-08-19 1:29 GMT+02:00 Jeong Dal <haksan@me.com>:

> Hi, Otared,
>
> I am also able to typeset Aditya’s example without problem, so example
> file is OK for me.
> There may be something which is not in the file.
> I am using MKIV beta 6. 21 version under OSX.
>
> This is LuaTeX, Version 1.05.0 (TeX Live 2017)
>  system commands enabled.
> open source     > level 1, order 1, name '/Users/graph/ConTeXt/tex/
> texmf-context/tex/context/base/mkiv/cont-yes.mkiv'
> system          >
> system          > ConTeXt  ver: 2017.06.21 23:03 MKIV beta  fmt:
> 2017.6.25  int: english/english
>
> Best regards,
>
> Dalyoung
>
>
> 2017. 8. 19. 오전 7:14, ntg-context-request@ntg.nl 작성:
>
> About \setupheadertexts : simplify a code
>
>
>
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