System.Drawing Namespace
Structs
Represents an ordered pair of integer x and ycoordinates that defines a point in a twodimensional plane. 

Represents an ordered pair of floatingpoint x and ycoordinates that defines a point in a twodimensional plane. 

Stores a set of four integers that represent the location and size of a rectangle 

Stores a set of four floatingpoint numbers that represent the location and size of a rectangle. For more advanced region functions, use a System.Drawing.Region object. 

Stores an ordered pair of integers, which specify a Height and Width. 

Stores an ordered pair of floatingpoint numbers, typically the width and height of a rectangle. 