<div dir="ltr"><span id="result_box" class="" lang="en"> <span class="">Hi,</span><br> <span class="">I try to</span> <span class="">understand how</span> <span class="">this macro</span> <span class="">by testing</span> <span class="">a simple example</span><span>.</span> <span class="">Why</span> <span class="">pdf</span> <span class="">file is empty</span><span> ?</span><br> <span class="">This</span> <span class="">question follows</span> <span class="">my question</span> <span class="">Cover</span> <span class="">page</span> <span class="">(</span><span>Metafun</span><span>)</span> <a href="http://www.ntg.nl/pipermail/ntg-context/2015/083078.html">http://www.ntg.nl/pipermail/ntg-context/2015/083078.html</a><br> <span class="">Thank you.<br><br>\setuppagenumbering[location=]<br><br>\setupcolors<br>  [state=start]<br><br>\setMPtext{text}{MATHEMATIQUES}<br><br><br>\starttext<br>\startuseMPgraphic{test}<br>picture pic ;<br>pic := image(graphictext \MPstring{text}<br>withdrawcolor red <br>withpen pencircle scaled 1pt ; ) ;<br>addto currentpicture also pic ;<br>\stopuseMPgraphic<br>\stoptext<br></span></span></div>