c++ - GetPath() 是否返回三次或二次贝塞尔曲线控制点？

Question

微软的文档说:

Specifies that the corresponding point in lpPoints is a control point or ending point for a Bèzier curve. PT_BEZIERTO values always occur in sets of three. The point in the path immediately preceding them defines the starting point for the Bèzier curve. The first two PT_BEZIERTO points are the control points, and the third PT_BEZIERTO point is the ending (if hard-coded) point.

http://msdn.microsoft.com/en-us/library/dd144908%28v=VS.85%29.aspx

这是否意味着它返回三次曲线或二次曲线？

谢谢

Answer 1

它是一个具有共享端点的立方体。 p[0]、p[1]、p[2]、p[3]组成第一段； p[3]、p[4]、p[5] 和 p[6] 组成第二段。等等。