Is there any way to get the + operator to work for the Point object?
Take, for example, this tiny snippet:
this.cm1.Show((MouseEventArg
I read the documentation for System.Drawing.Point (linked in Cody Gray's answer), and it has an instance method Offset. That method mutates the current Point (the designers chose to make Point a mutable struct!).
So here's an example:
var p1 = new Point(10, 20);
var p2 = new Point(6, 7);
p1.Offset(p2); // will change p1 into the sum!
In the same doc I also see an explicit conversion from Point to Size. Therefore, try this:
var p1 = new Point(10, 20);
var p2 = new Point(6, 7);
Point pTotal = p1 + (Size)p2; // your solution?