How To call a function in c++

[DYann.1]

Hi,

I recovered a program and I would like to use but I do not understand very well. Could you give me some info.

Thank you for your helps

Regards

[DYann.1]

I have this function and I would like to call from my Main.

Thank you for your helps

[DYann.1]

Hello,

Now I declared a variable of class SGTL500

And when I want to initialize with the method (void sgtl5000 :: init(void))

I call it that way

audio.init();

But after I'm stuck at this feature :

I feel like I'm stuck at this function but I don't know what it's for. Do you have any idea where my problem comes from ?

Thank you for your helps.

I am attaching a copy of my project.