AutoCAD Command as Trigger for AutoLISP Execution

Is there a way to run an AutoLISP file every time a particular AutoCAD command is executed by the user? For example, I want to run CHECKMOVE.LSP when ever the user executes the "Move" command. Any ideas how this can be done? (I am hoping for a solution I can implement with AutoLISP.)

Thanks,

Landon

 

Try Undefining the Move command and replace it with your own which includes
your lisp.

(command ".undefine" "move")

(defun c:move ()

;;your code here

)

cj

command is executed by the user? For example, I want to run CHECKMOVE.LSP
when ever the user executes the "Move" command. Any ideas how this can be
done? (I am hoping for a solution I can implement with AutoLISP.)

 

Thanks for the tip CJ.

Is there a way to reset a refined command to its original state in case I mess something up? Or is this automatically done when a new AutoCAD session is started?

Thanks Again,

The Sunburned Surveyor

 

(command "redefine" <commandname)

Even when a command is redefined, you can always run the original version by
prefixing it with a period, e.g. (command ".move"). That's why it's
recommended that all lisps or menu macros which run commands should use the
period-prefixed forms -- so the normal command will run even if it gets
redefined for some reason.

And any redefinitions are only in effect in the document session in which
you did it. Reopen the drawing and the normal command is back You can't
permanently mess up the built-in commands.

 

typically you redefine the command in your startup functions, either in
acaddoc.lsp, acad.lsp or your mnl file. That way it's set everytime you load
a drawing.

if you need to have the original back, use (command ".redefine" "move")

cj

mess something up? Or is this automatically done when a new AutoCAD session
is started?

 

You may want to check into reactors, and run your code when the command
is complete.

Perhaps if you explained what you want to do (after the move).

Terry