Lookout 4.5.1 b18 nested expressions on startup

Question

There seem to be a problem with nested expressions on process
startup.
We used to program a delay on process startup so that audio
alarms (if any) acivate after given period of time.
Here's code example of how we used to do that.
Normally PlayWave should play ONCE after
5 second delay upon process startup.
/* doesn't work correctly on 4.5.1 b18 - plays TWICE */
/* !TimerStartupDelay->ExpStartupDelay->ExpPlayWave->PlayWave */
ExpPlayWave = new ExpStartupDelay;
/* It works OK ... */
/* !TimerStartupDelay->ExpPlayWave->PlayWave */
ExpPlayWave = new !TimerStartupDelay;
ExpStartupDelay = new !TimerStartupDelay;
Panel1 = new Panel ("Control Panel", 0, 239, 109, 16, 35,
0xC0C0C0, 0,
0, 0,
TimerStartupDelay.status
{l= 130,t= 7,w=
38,h= 20
ExpPlayWave {l= 105,t= 12,w= 16,h=
16,opt=8193,
type=2},
ExpStartupDelay {l= 105,t= 37,w= 16,h=
16,opt=8193,
type=2},
"ExpPlayWave" {l= 8,t= 8,w= 87,h=
20,opt=3,fwt=400
"ExpStartupDelay" {l= 4,t= 35,w= 100,h=
20,opt=3,fwt=400
Panel1.activate= true;
PlayWave = new PlayWave (ExpPlayWave, "c:\windows\media\ding.wav");
TimerStartupDelay= new OneShot (true, :05);
In other words a signal received by PlayWave
should be identical in both cases:
!TimerStartupDelay->ExpStartupDelay->ExpPlayWave->PlayWave
!TimerStartupDelay->ExpPlayWave->PlayWave
In fact it is't in 4.5.1 build 18.
It was OK with earlier Lookout versions/builds.
I would mostly appreciate to hear from NI on the problem.
We have many processes with timer values 'hidden'
within nested expressions. And it used to work fine for years.
I feel sick thinking of rewriting / debugging
dozens of programs.
Best Regards,
Sergei

Answer 1

Further to my previous posting, I just found out that
renaming ExpStartupDelay to Exp1 eliminates the problem.
The problem seems to occur only on process startup.
Can anybody comment on that? How can it be that
expression name affects it's value?
Best Regards,
Sergei
[email protected] wrote:
> There seem to be a problem with nested expressions on process
> startup.
>
> We used to program a delay on process startup so that audio
> alarms (if any) acivate after given period of time.
>
> Here's code example of how we used to do that.
>
> Normally PlayWave should play ONCE after
> 5 second delay upon process startup.
>
> ------------------
> /* doesn't work correctly on 4.5.1 b18 - plays TWICE */
> /* !TimerStartupDelay->ExpStartupDelay->ExpPlayWave->PlayWave */
>
> ExpPlayWave = new ExpStartupDelay;
>
> /* It works OK ... */
> /* !TimerStartupDelay->ExpPlayWave->PlayWave */
>
> /*
> ExpPlayWave = new !TimerStartupDelay;
> */
>
> ExpStartupDelay = new !TimerStartupDelay;
>
> Panel1 = new Panel ("Control Panel", 0, 239, 109, 16, 35,
> 0xC0C0C0, 0,
> 0, 0,
> TimerStartupDelay.status
> {l= 130,t= 7,w=
> 38,h= 20
> },
> ExpPlayWave {l= 105,t= 12,w= 16,h=
> 16,opt=8193,
> type=2},
> ExpStartupDelay {l= 105,t= 37,w= 16,h=
> 16,opt=8193,
> type=2},
> "ExpPlayWave" {l= 8,t= 8,w= 87,h=
> 20,opt=3,fwt=400
> },
> "ExpStartupDelay" {l= 4,t= 35,w= 100,h=
> 20,opt=3,fwt=400
> });
> Panel1.activate= true;
>
> PlayWave = new PlayWave (ExpPlayWave, "c:\windows\media\ding.wav");
>
> TimerStartupDelay= new OneShot (true, :05);
>
> ---------------
>
> In other words a signal received by PlayWave
> should be identical in both cases:
>
> !TimerStartupDelay->ExpStartupDelay->ExpPlayWave->PlayWave
>
> !TimerStartupDelay->ExpPlayWave->PlayWave
>
> In fact it is't in 4.5.1 build 18.
> It was OK with earlier Lookout versions/builds.
>
> I would mostly appreciate to hear from NI on the problem.
>
> We have many processes with timer values 'hidden'
> within nested expressions. And it used to work fine for years.
> I feel sick thinking of rewriting / debugging
> dozens of programs.
>
> Best Regards,
>
> Sergei