AnalogOutput BeginWriteMultiSample - when is Callback executed?

[Camell]

The BeginWriteMultiSample method for analog output has a callback.

When exactly is this callback executed?

Example:

I write samples for 10 seconds to the buffer (writing should last a few milliseconds if buffer has space).

Is the callback executed after writing to the buffer is finished (= few milliseconds if buffer has space) or is the callback executed after the samples has been generated at the output (= at least 10 seconds).

I hope, it will be executed after writing to the buffer is finished, because then you can easily use it to generate continuous analog output. 

[Camell]

Seems like the CallbackMethod is called quite immediately, which means it is called after writing into buffer (but not analog output) is finished.

I seems like I can't use the CallbackMethod to immediately begin another writing without using any timeouts. Right?

I am missing examples or documentation about how to use the callback for continuous analog output 😞 

[Duffy2007 · Accepted solution]

Hi Camell

i hope this explanation helps a little bit

When Do DAQmx Analog/Digital WriteMultiSample Methods Return?

Have you looked into the examples?