Another example of the screen refresh problem on the Mac?
jhurley0305 at sbcglobal.net
Mon Oct 10 23:29:59 CDT 2011
> Message: 26
> Date: Mon, 10 Oct 2011 22:16:04 -0500
> From: "J. Landman Gay" <jacque at hyperactivesw.com>
> To: How to use LiveCode <use-livecode at lists.runrev.com>
> Subject: Re: Another examples of the screen refresh problem on the
> Message-ID: <4E93B4F4.1010405 at hyperactivesw.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> On 10/10/11 6:04 PM, James Hurley wrote:
>> Thanks for your careful test. This is driving me nuts and I can't
>> find a work-around.
> The workaround might be LiveCode 5.0, where animation has been greatly
> That said, I have a script that moves two objects together that also
> misbehaves in both 4.6.4 and 5.0. What I had to do was make the second
> object move faster than the first. Both move commands use a time factor, so:
> move btn btn1 to x,y in 500 milliseconds
> move btn btn2 to x,y in 100 milliseconds
> Then they both move together, only at the faster rate.
> Jacqueline Landman Gay | jacque at hyperactivesw.com
> HyperActive Software | http://www.hyperactivesw.com
Thanks. I hadn't upgraded to 5 on the assumption that the changes from 4 were for the mobile apps. Happy to see that animation has not been neglected.
A screen refresh is still required in 5.0 if there is a rapid sequence in the change to the location of an object--on the Mac. It is odd however that "unlock screen" no longer forces a screen refresh on the Mac. However, wait 0 millisec does still work. Something like this works in 4 and 5:
if char 1 to 2 of the systemVersion = 10 then wait 0 millisec
...or there is no visible change on the screen--only the final location is seen. And for reasons that I do not understand, setting the syncRate to 6 (Brnd's suggestion) improves the smoothness of the motion.
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