Trapping the Option or Command keys

[Sarah Reichelt]

On Tue, Jul 28, 2009 at 8:52 AM, <DunbarX at aol.com> wrote:
> Sarah:
>
> Just curious. Do you use "command" instead of (good ol') "on"?
>

"command" was introduced in 3.? (3.5 I think) and I am gradually
training myself to use it.
The idea is that system messages still use "on", so you have "on
mouseUp", "on preOpenStack" etc.
But your own handlers use "command" instead of "on" to make it clearer
what's what.
"function" remains unchanged.

However it's just a matter of style, I don't think either way is
inherently more correct and as far as I know, RunRev is not going to
make either one compulsory any time soon.

Cheers,
Sarah