AddRectangle (TRegion)

Assign (TRegion)

pt 

Changed (TGraphicsObject)

pt 

Changing (TGraphicsObject)

Create (TRegion)

Destroy (TRegion)

pt 

GetClipRect (TRegion)

pt 

Lock (TGraphicsObject)

pt 

SetClipRect (TRegion)

pt 

UnLock (TGraphicsObject)