addlistener in legacy based interface

2013 6 10
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更新时间：2021 8 20
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Is it not possible to use 'addlistener' in legacy based programming style? lh = addlistener(Hsource,'EventName',callback) What is 'HSource'? I want to excecute a callback function every 1sec when the data available in the input card exceeds say'5000' points.

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Jan
Jan 2013-6-10
What is "legacy based programming style"? What exactly does "data available" mean? When you are talking of a serial connection, a simple callback might be easier.
jenni
jenni 2013-6-11
I am talking about the session based & legacy based interface in data acquisition.I want a function to be called every second when the input data collected by the data acquisition card exceeds some fixed pointsin legacy interface programming.'addlistener' calls a function when 'data available' event occurs. But i dont know its exact usage like what Hsource' means.

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jenni
2013-6-10

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