This is an example showing the use of, and accuracy of the following functions.   _PointInEllipse() _WinAPI_PtInRectEx() _PointInPoly()   All functions return true if the specified point is witin the closed area of the shape, And, False if the specified point is outside the shape.   A circle can be used with _PointInEllipse() function. A circle being an equal sided ellipse. A triangle can be used with _PointInPoly(). A triangle being a three sided polygon. For right angle rectangle shape use _Wi