Should "dispatch" be extended for timers?
Bob Sneidar
bobsneidar at iotecdigital.com
Wed Aug 27 11:16:59 EDT 2014
You cannot dispatch in time. But you can send in time. If you:
send doSomething to me in 0 seconds
do someotherthingsfirst
then someotherthingsfirst will run and anything else that comes after it. doSomething will run the next idle message.
Bob S
On Aug 27, 2014, at 07:46 , dunbarx at aol.com wrote:
> Richard.
>
>
> When you say "send" is blocking, in what way? Is this really any different that calling any handler? For example:
>
>
> on mouseUp
> doSomething
> end mouseUp
>
>
> on MouseUp
> send "doSomething" to this card
> end mouseUp
>
>
> Can you explain the difference?
>
>
> Craig
>
>
>
> -----Original Message-----
> From: Richard Gaskin <ambassador at fourthworld.com>
> To: use-livecode <use-livecode at lists.runrev.com>
> Sent: Wed, Aug 27, 2014 10:18 am
> Subject: Re: Should "dispatch" be extended for timers?
>
>
> Peter Haworth wrote:
>
>> Sounds like a great idea to me. I seem to remember that one of
>> dispatch/send is blocking and the other isn't. Could that be a
>> possible reason for the lack of "in" with dispatch?
>
> Both are blocking when called immediately; "send" can become on-blocking
> by specifying a later time to send the message.
>
>
> dunbarx wrote:
>
>> "Send' can, er, send parameters as well as a command. In a button
>> script:
>>
>> on mouseUp
>> send "putArg" && random(99) && random(99) && "XYZ" to me in 5
>> end mouseUp
>>
>> on putArg var
>> put var
>> end putArg
>>
>> You get pairs of random numbers and the text as well. All parameters
>> come across as a batch.
>>
>> Or you can separate in the usual way:
>> on mouseUp
>> send "putArg" && random(99) & "," & any char of "ABCD" to me in 5
>> end mouseUp
>>
>> on putArg var,var2
>> put var2 --or the first one or both
>> end putArg
>
> Yes, both "send" and "dispatch" allow passing arguments, but as we saw
> with yesterday's forum post it seems unintuitive to have to put quotes
> around things that aren't strings, making "dispatch" feel more natural.
>
> Of course in a certain Zen sort of way even variable names are
> technically strings on some level, but having to quote them to pass them
> with "send" is something I see a lot of newcomers guess wrong.
>
> FWIW I submitted a request to have "dispatch" extended with "in" for timers:
>
> <http://quality.runrev.com/show_bug.cgi?id=13287>
>
> --
> Richard Gaskin
> Fourth World Systems
> Software Design and Development for the Desktop, Mobile, and the Web
> ____________________________________________________________________
> Ambassador at FourthWorld.com http://www.FourthWorld.com
>
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