Question

I want to extend the .NET’s built-in Color struct to add new operators like + or -.
I will use them like:

Color c1 = Color.FromName("Red");
Color c2 = Color.FromName("Blue");
Color result = c2 - c1;

Is it possible? if yes, how?

Answer 1

There is no way to do it with the built in operators.

You could write an extension method to kind of fake it though:

public static class Extensions
{
    public static Color Substract(this Color color, Color theOtherColor)
    {
        //perform magic here! 
        //be sure to return something or this won't compile
    }
}

Color c1 = Color.FromName("Red");
Color c2 = Color.FromName("Blue");
Color result = c2.Subtract(c1);