![](https://secure.gravatar.com/avatar/3abe5a26c84c897ec3b38d6a6c3ec04a.jpg?s=120&d=mm&r=g)
12 May
2010
12 May
'10
11:22 a.m.
Hello, I'm having some trouble with a macro using \processaction inside a metapost graphic. Here is a minimal example. \def\Shape#1% {\processaction[#1] [square=>unitsquare, circle=>unitcircle]} \starttext \startuseMPgraphic{test} fill \Shape{square} scaled 1cm; \stopuseMPgraphic \useMPgraphic{test} \stoptext It stops with the error "Use of \p!compareprocessaction doesn't match its definition." Any ideas? Vianney