Why "limit maximum instances of this event in the queue" in the dialog box change events?

Why I "would limit the maximum instances of this event in the queue" in the dialog box change events?

I think that this is new for LV 2014, but I couldn't find an explanation for an instance of good use. A research on OR displays only the 2014 help text, which explains what it does, but not why?

Does anyone know good arguments to use this option?

Thanks in advance.

Justin Tyme

It is useful for user interface elements that can enqueue actions as quickly as they can be made.

For example, say it takes takes 1 second to take a picture and save it. The user presses the button "Take a photo", but they do not see a new image file again after a wait of 250 ms (human beings humans can be impatient) so they press twice. Finally, they see a new file image... and then another... and then another... To get rid of this possibility, check this box.

Or that you have a cursor to adjust some settings. Moving the cursor updates very fast! If the user swipes from 0 to 1 then the program might try to send all the rest as a parameter to your instrument, which takes some time. Instead of sending all of these values, it is probably better if the software can keep up with the cursor and send a value of about 1 at the same time, the cursor said 1. If you do not check this box, the user can be 1, but the unit will continue to receive values from 0.53, 0.54, 0.55...

Tags: NI Software

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