LiveCode Forums.

Posted: **Mon May 21, 2018 9:33 pm**

What's the difference between the following for creating custom commands ?

command doSomething
-- code
end doSomething

VS

Code: Select all

on doSomething
--code
end doSomething

Is is something to do with the message path ? The reason I ask is because my app was crashing occasionally when I was using "command" in a button script. I changed it to "on" and it seems much more stable ...

I still use "command" for custom commands in the card script. It doesn't seem to affect anything.

Can anyone clarify,
thanks,
Ricard

Posted: **Mon May 21, 2018 11:25 pm**

Switching between "on" and "command" should make no functional difference. Please post the code in question and we may be able to help figure out what you're seeing.

Posted: **Tue May 22, 2018 1:38 pm**

Hi Ricard,

what Richard said!

Once upon a time (some years ago) Livecode advised use to use COMMAND for custom handlers to differ them from the build-in commands like "on mouseup" etc.

They said that at some point in the future this would really matter.
This day did not arrive yet, however!

Best

Klaus

Posted: **Tue May 22, 2018 1:50 pm**

Thanks Klaus and Richard. That answers my question. I didn't think it made any difference. The crashing issue I had, thats now fixed, must be something else I did.

cheers,
Richard

LiveCode Forums.

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