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Specifies the different methods by which two regions can be combined.
public enum RegionCombineMode
Exclude = 3
The second region is excluded from the first.
Intersect = 1
The two regions are combined by taking their intersection.
Union = 0
The two regions are combined by taking the union of both.
Xor = 2
The two regions are combined by taking the area that exists in the first region but not the second and the area that exists in the second region but not the first.