I am creating my own application for manage of Antminer S9.
I found source with API here: https://github.com/ckolivas/cgminer
And there is file api.c with functions i need and example in api-example.c
But how i can use API from api.c and create my own application for send command?
Is it possible to create library from cgminer for using functions in my C++ project? How is possible to use functions from this project?
Look for the word api in the filenames.
If that doesn't help, you'll not be able to write anything anyway.
It's a simple socket, you just send a command and get a reply then close the socket.
The "library" is called socket programming.