lock screen gotcha revisited

Bob Sneidar bobsneidar at iotecdigital.com
Mon Aug 21 11:08:12 EDT 2017


Yup. My troubles came when I had a handler unlock the screen 5 times straight and I do not lock the screen to that many levels. It still did no unlock the screen, so now it may be that one handler cannot unlock another handler's lock screen, which I was unaware of. 

Bob S


> On Aug 18, 2017, at 18:37 , Mark Wieder via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> On 08/18/2017 03:50 PM, Bob Sneidar via use-livecode wrote:
>> Hard to say. I'm almost done finding every place I lock the screen and adding an unlock screen in the same handler.
> 
> And that, of course, is the best procedure. Locking/unlocking the screen works on sort of a reference-counting approach. In general, locking the screen increments a counter, unlocking the screen decrements it. When the counter reaches zero, the screen is unlocked and all the pending updates take place.
> 
> -- 
> Mark Wieder
> ahsoftware at gmail.com





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