Hi Jo!
JES>In "the MagiC programming docs" which has been available for ages.
As far as I know SMC_M_SPECIAL is defined in magic.h but nowhere documented.
If you know more than me, please send me a mail with the part of the
documentation
In spite of that I think it's a conceptional hack to switch, terminate or
hide applications by sending a message to the screen manager
Bye
Joerg