lock screen gotcha revisited

[prothero at earthlearningsolutions.org]

Seems like it would be much simpler if lockscreen just kept the screen locked until unlockscreen was invoked, but there was an update screen command when forced updates were needed. No counters to keep track of. 

Best
Bill 

William Prothero
http://ed.earthednet.org

> On Aug 21, 2017, at 10:40 AM, Bob Sneidar via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> I would have to recreate it as my production stack has already been gone through, and it seems to be working as advertised, which would argue against it being an engine issue. I'll see if I can create a sample stack in the next couple days. Right now I have a couple service calls to go out on and that will probably eat up the rest of my day. 
> 
> Bob S
> 
> 
>> On Aug 21, 2017, at 10:28 , Mark Waddingham via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> On 2017-08-19 04:41, J. Landman Gay via use-livecode wrote:
>>> Except when it doesn't. There seems to be an override in the lock
>>> count if any unlock uses a visual effect. I'm not sure if that's on
>>> purpose or not.
>> 
>> Internally there is a counter - and only one - the engine uses it too when it needs to.
>> 
>> The lock is dropped as soon as you get back to a wait with messages though (IIRC) (certainly the main runloop).
>> 
>> Unbalanced lock screens can cause problems though - the IDE has had a fair few in the past - it might still... Do you have an example of the abberent behavior you've seen? It would be useful to know if there is an engine issue lurking here, or a misplaced lock/unlock screen in the IDE.
>> 
>> Warmest Regards,
>> 
>> Mark.
>> 
>> -- 
>> Mark Waddingham ~ mark at livecode.com ~ http://www.livecode.com/
>> LiveCode: Everyone can create apps
> 
> 
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