Has the cancel message command changed?

[Ron Zellner]

I have a stack that I developed a couple of years ago that had a cancel message command in it, I believe it worked then:

else cancel Next checkMouseWithin

The intent is to cancel the "checkMouseWithin" command if a box is checked (the "checkMouseWithin" is in a loop that calls itself and continues otherwise)

I get a "cancel: message id is not an integer" error message.

Is there a better way to do this?

Here is the original script as it appears in the current editor:

Code: Select all

on mouseUp
  if the hilite of me is true
  then send "checkMouseWithin" to group 1
    else cancelNextCheckMouseWithin
end mouseUp

[Klaus]

Hi Ron,

nope, the way "cancel" works has not been changed, you said "I believe it worked then..." but I bet it didn't

Please check the docs for "send ... in..."!

After you fired a "send in" you will have to check "the result" immediately and store it in a variable or custom prop for later use, since "the result" will contain the "message id" that you can cancel later. And that explains your error message.

...
global message_id_2_cancel
send "do_this_or_that" to me in 2 secs
put the result into message_id_2_cancel
...

And later, maybe in another handler:
...
global message_id_2_cancel
cancel message_id_2_cancel
...


Best from germany

Klaus