Detecting peaks in realtime from a microphone

[Buzzyous]

I viewed some of these, and found some interesting. Still reading, there are many articles. Thank you for the addressing.

But, you said the difficult part is to sample the audio; there are API functions that record the input audio to save it in a file. Could that data be read or interpreted as sampled audio in RT, block by block, instead of sending them to a file on memory? Do I really need to do the sampling on my own?

I mean, when I have a HWAVEIN received with WaveIn function, could I navigate the data related to it as an "array of samples", or something like that?