The swf_shapecurveto() function draws a quadratic bezier curve from the current location, though the x coordinate given by x1 and the y coordinate given by y1 to the x coordinate given by x2 and the y coordinate given by y2.
swf_shapecurveto() dessine la courbe de Bézier quadratique entre les points de coordonnées (x1, y1) et (x2, y2).