Introduction - If you have any usage issues, please Google them yourself
This process is a smooth curve (parametric cubic spline curve) to connect discrete points PicHdc express in the above parameters to deal with the form of equipment, the environment handle PicHwnd express in the above parameters to deal with the window handle of the form parameters of X () , Y () express the coordinates of the discrete points that the curve parameters Color Color Mode parameters express the three parameters of the spline curve constraint conditions: where 0 is the free end, one for the parabolic-side (does not take gripping side)