Get ID of checkbox inside of listview item in OnItemClick listener

I got a listview with items. Each item has a chekbox. Now if a item is clicked, I want to change the state of this checkbox. How can I get the ID of the checkbox when the listview item is clicked?

I got this code:

cList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapter, View v, int position, long arg3) {
                Client currentClient = (Client) mAdapter.getItem(position);

            }
        });