Thanks by the answer, but I had already thought in this. I would like something more definitive.<br><br>By the way, at <a href="http://wiki.contextgarden.net/Reference/en/setupcaptions">http://wiki.contextgarden.net/Reference/en/setupcaptions</a> I can see a command argument. I was wondering if a custom command can do the trick, but I don&#39;t know how I should use this arg and what it is for.<br>

<br clear="all">--<br>Wagner Macedo <br>
<br><br><div class="gmail_quote">On 8 February 2012 21:43, Marco <span dir="ltr">&lt;<a href="mailto:netuse@lavabit.com">netuse@lavabit.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div class="im">I don&#39;t know if  I get you right, but I think  you are talking about<br>
the width  of the  caption. It  adaptes to the  with of  the figure.<br>
There is the “minwidth” parameter  for \setupcaptions, but since the<br>
short captions  will not be centred  it&#39;s probably not what  you aim<br>
for.  I don&#39;t  have a  solution, but  a workaround  that alters  the<br>
global width setting for an individual caption:</div></blockquote></div><br>