Draws a set of line segments connecting the points specified by lpPoints.
Points to an array of POINT structures or CPoint objects to be connected.
Specifies the number of points in the array. This value must be at least 2.
Nonzero if the function is successful; otherwise 0.
The lines are drawn from the first point through subsequent points using the current pen. Unlike the LineTo member function, the Polyline function neither uses nor updates the current position.
For more information, see PolyLine in the Windows SDK.