[JW Lua] Progress bar doesn't update / Finale screen doesn't update on long scripts

[Jari Williamsson]

Jan,

Finale is basically single-threaded in how it handles data (which is 
basically the same way as 16-bit Finale back in the early days), and the 
main thread is also the thread that paints the screen. So a JW Lua 
script is executed in the main thread.

Finale 25 seems to have some multithreading going on (I strongly suspect 
that HP processes data parallel to the playback thread in Finale 25), so 
I don't know how this will be in the future.


Best regards,

Jari Williamsson


On 2017-07-27 11:57, Jan Angermüller wrote:
> Jari,
> 
> when running long scripts, Finale (or Windows?) sometimes freezes the 
> screen update.
> 
> If you look at this video ( https://www.youtube.com/watch?v=0ugMNTzJAPg 
> ), you see that Finale's screen update freezes after about 15 seconds 
> although it internally still changes part scopes and views regularly. 
> Finale is still working fine in the background until it finishes (in the 
> video at 25 seconds) and finally refreshes the screen.
> 
> Do you know of the cause? Is this a general Finale or OS 
> multi-thread/multi-tasking problem when running long scripts/functions? 
> I know that things like this used to happen in other software as well - 
> but this was years ago in Windows XP. All software I use nowadays 
> regularly updates the screen during processing.
> Would adding another refresh, repaint, update, etc. function to the 
> progress bar solve the problem? Its value actually updates during the 
> freeze, but it's not visible.
> 
> Best,
> Jan
> 
> 
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