'Value(Signaling)' execution?

[kimdino]

Does 'Val(Sgnl)' cause an immediate execution of the Event code inline (like a subroutine) or add to a queue to be executed later?

Thanks, K.Giles

[TCPlomp]

Value Signalling, just triggers the event case just like a normal user value change. The value will update immediatly but the event code will process whenever the event-case is idle.

Ton

[altenbach]

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@TonP wrote:
Value Signalling, just triggers the event case just like a normal user value change.

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... with the added bonus that it always triggers, even if the value actually does not change. For example of the current value is zero and you feed a zero to a value(sgl) property, the event will still trigger. 🙂

[gtb1234]

Is there a way to get a val signal to work just like a user clicking a button to get a value change event (boolean in my case). It just repeatedly keeps triggering the events even though the value is not changing. I'm sure this may be useful in some situations but I need the programmatic signaling  to work only when the value changes.

gtb

[mikeporter]

Well, you can't get the val(sgnl) event to fire only when the value "really" changes, but the event data contains OldVal and NewVal data so in the event case you can test yourself to see if the datavalue really changed and only perform the desired action when they are not equal.

Mike...

[altenbach]

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@gtb1234 wrote:

Is there a way to get a val signal to work just like a user clicking a button to get a value change event (boolean in my case). It just repeatedly keeps triggering the events even though the value is not changing. I'm sure this may be useful in some situations but I need the programmatic signaling  to work only when the value changes.

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Place the property node inside one case of a case structure and  execute the case only when the value changes (e.g. compare with shift register value from the previous iteration). The other case is empty and executed when the value did not change.

Simple enought? 🙂

[gtb1234]

Thanks for the suggestions.

gtb