beginPath beginShape bezierTo clearCachedBitmap clearRect clipPath clipRect closePath drawBitmap drawEllipse drawHandle drawLine drawPath drawRect drawTextAt drawTextAt endShape lineTo moveTo quadTo restoreClip saveClip setBrush setPen ~GiCanvas

quadTo() virtual void GiCanvas::quadTo ( float  cpx, float  cpy, float  x, float  y  ) pure virtual Add a quadratic bezier segment to the current subpath. 在 GiGdipCanvas, GiShapeAdapter, GiCanvasAdapter, GiRecordCanvas , 以及 GiSvgCanvas 内被实现. 这是这个函数的调用关系图: