reactor help!

who can help me!
I want design a reactor which is linked with the attrib of block. the
block will changed when his attrib is modified by DDATTE or ATTedit.
how will i do?

Thanks
deger

 

You'll need two different reactors: an object reactor to control
modification of the ATTRIB entity, and an editor reactor to control
the commands.

The object reactor should fire only when the ATTRIB entity has been
modified. The reaction function will simply add the ATTRIB's entity
name to a list in a global variable.

The editor reactor makes use of two reaction functions. One will be
fired upon begincommand, it will simply set the global variable to
NIL. The second will be fired upon commandended, and it looks for the
command name which just has ended. In case that it one of your
controled commands the function will look for the global variable and
modify all blocks of the modified ATTRIB entities.

Tom Berger