![](https://secure.gravatar.com/avatar/1f1420d2f042c8497d63406a4033a676.jpg?s=120&d=mm&r=g)
25 Jul
2008
25 Jul
'08
8:40 a.m.
How come this doesn't work ? \defineblock[prev] \defineblock[full] \hideblocks[full] %\hideblocks[prev] \def\previewMsg{This part is hidden} \def\showPreviewMsg{\beginprev \hairline \previewMsg \hairline \endprev} \starttext \input tufte \showPreviewMsg % it doesn't show %\beginprev % \hairline % \previewMsg % \hairline %\endprev \beginfull \input knuth \endfull \input tufte \stoptext Alan P.S. What is the \processblocks command for ?