pass color parameter from one evant function to another

// form thet evant function 


 private void recgreen_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            

        }



// to that evant function

  private void myCanvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {

            
            _startPoint = e.GetPosition(myCanvas);
            _line = new Polyline();
// Here I want to change the color according to evant function activated

            _line.Stroke = new SolidColorBrush(Colors.Black); //the black shoude be any color according to evant function activated
            _line.StrokeThickness = 1;

            myCanvas.Children.Add(_line);

        }