What is the difference between System.Drawing.Point and System.Windows.Point?

问题

1. What's the difference between System.Drawing.Point and the System.Windows.Point?
2. In what context should which one be used?

I'm working with WPF.

回答1:

System.Drawing.Point represents a GDI point and is used in Windows Forms. It can only hold integer values.

WPF doesn't use GDI anymore, so it has its own System.Windows.Point type to represents a point, which can have non integer values.

回答2:

One is used with the classes in System.Drawing namespaces, and one is used with WPF.

The System.Drawing.Point is not so surprisingly used with the classes in the System.Drawing namespaces. The System.Windows.Point is used with WPF.

来源：https://stackoverflow.com/questions/2659520/what-is-the-difference-between-system-drawing-point-and-system-windows-point