button state change event

[flori89]

Hi,

i need a simple way to check not the state of a button but i need a signal if the state is changed.

And is it possible i need the same to check if a number changed.

Thanks

Florian

[altenbach]

Typically, you would use a shift register, then compare the current with the previous value using "not equal". It will be true whenever the data has changed from the previous iteration.

You could also use an event strucure with "value changed". It will fire whenever the control is changed by the operator.

As an alternative, there is an openG tool has a "data changed?"  node  for this purpose. ( www.openg.org ).

[dliechti]

Both you can solve with an event structure. Just place your button control inside the event structure and choose the event 'Value Change'. The same states for the numeric control.

David

[flori89]

Thanks!!!

the event structure was the thing i am searching for, because the shift register are bad when you have a lot of buttons to check.

Florian