Shareholders are the owners of C corporations.
If they (or others) perform services for the corporation, they are typically compensated with a salary/wage (they're employees of the corporation as such).
Otherwise, payments made to shareholders by C corporations are dividends (or return of capital in certain instances).
Please don't take this the wrong way but if you do not have a rudimentary knowledge of the foregoing you need to consult with a local tax professional.