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2.1.26 Point Enumeration

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The Point enumeration is used to specify how a point is to be used in a drawing call.

 typedef  enum 
 {
   PT_CLOSEFIGURE = 0x01,
   PT_LINETO = 0x02,
   PT_BEZIERTO = 0x04,
   PT_MOVETO = 0x06
 } Point;

PT_CLOSEFIGURE: A PT_LINETO or PT_BEZIERTO type can be combined with this value by using the bitwise operator OR to indicate that the corresponding point is the last point in a figure and the figure is closed.

The current position is set to the ending point of the closing line.

PT_LINETO: Specifies that a line is to be drawn from the current position to this point, which then becomes the new current position.

PT_BEZIERTO: Specifies that this point is a control point or ending point for a Bezier curve.

PT_BEZIERTO types always occur in sets of three. The current position defines the starting point for the Bezier curve. The first two PT_BEZIERTO points are the control points, and the third PT_BEZIERTO point is the ending point. The ending point becomes the new current position. If there are not three consecutive PT_BEZIERTO points, an error results.

PT_MOVETO: Specifies that this point starts a disjoint figure. This point becomes the new current position.