//Add the Form parameter in the constructor, so this control can get the ID
        public formLayout(communicationForm parentForm)
        {
            InitializeComponent();

            this.parentForm = parentForm;

            this.sendButton = sendMessageButton;
        }
        //Constructor of the communication with known receiver form
        public communicationForm(communicationForm receiverForm)
        {
            InitializeComponent();

            this.receiverForm = receiverForm;

            layout = new formLayout(this);

            layout.Dock = DockStyle.Fill;

            this.Controls.Add(layout);

            this.AcceptButton = layout.sendButton;
        }