Size::IsEmpty

inline bool IsEmpty() const;

IsEmpty determines whether the size is empty. In order to be considered empty, one or both of the components must be less than one. The following expression may be used to represent the result:

    (Width < 1) || (Height < 1)

A Boolean value of 1 (true) if the size is empty and 0 (false) if it is not.

IsNull IsValid