The Point class is a small class holding the x and y position of a two-dimensional point:

Point.h

namespace SmallWindows { 
  class Point { 
    public: 

The default constructor initializes the x and y value to zero. The point can be initialized by, and assigned to, another point:

      Point(); 
      Point(int x, int y); 
      Point(const Point& point); 

Similar to the Size class mentioned earlier, Point uses the assignment operator:

      Point& operator=(const Point& point); 

Similar to SIZE in the preceding section, there is a POINT Win32 API structure. A Point object can be initialized by, and assigned to, a POINT structure, and a Point object can be converted to POINT:

      Point(const POINT& point); 
      Point& operator=(const POINT& point); 
      operator POINT() const; 

When comparing two points, the x values are first compared. If they are equal, the y values are then compared:

      bool...