Hi,
the metafun function positionwidth doesn't seems to be available, so I triy to use wdpart positionwhd.
But in the MVE, the green point is not at the expected position (on the right border of the frame).
%%%%%%%%%%%%%
\setupheadertexts[]
\setuppapersize[A8,landscape]
\setupbodyfont[40pt]
\startuseMPgraphic{MPMyPage}
StartPage ;
draw
positionbox("locA")
withpen pencircle scaled 5pt
withcolor transparent(1,0.5,blue);
pair ThePoint;
ThePoint := positionxy("locA");
draw ThePoint
withpen pencircle scaled 5pt
withcolor red ;
draw ThePoint
shifted (wdpart positionwhd("locA"),0)
withpen pencircle scaled 5pt
withcolor green ;
StopPage ;
\stopuseMPgraphic
\defineoverlay
[OLMyPage]
[\useMPgraphic{MPMyPage}]
\setupbackgrounds
[page]
[background={foreground,OLMyPage}]
\starttext
A
\framed
[region=locA,
offset=overlay,
frame=off]
{\TeX}.
\stoptext
%%%%%%%%%%%%%
