void thisBox_Click(object sender, EventArgs e)
        {
            Coordinates_Form showForm = new Coordinates_Form(isMap);

            showForm.Set_Coordinates(coordObject);
            showForm.Read_Only = read_only;
            showForm.ShowDialog();

            if (showForm.Changed)
            {
                OnDataChanged();
            }

            show_coord_value();
        }
        void thisBox_KeyDown(object sender, KeyEventArgs e)
        {
            if ((e.KeyCode != Keys.Control) && (e.KeyCode != Keys.PrintScreen) && (e.KeyCode != Keys.Down))
            {
                Coordinates_Form showForm = new Coordinates_Form(isMap);
                showForm.Set_Coordinates(coordObject);
                showForm.Read_Only = read_only;
                showForm.ShowDialog();

                if (showForm.Changed)
                {
                    OnDataChanged();
                }

                show_coord_value();
            }
        }