GDI+ 学习记录(20) 绘图质量[转]

//绘图质量

var

  g: TGPGraphics;

  p: TGPPen;

begin

  g := TGPGraphics.Create(Canvas.Handle);

  p := TGPPen.Create(MakeColor(255,0,0),2);

 

  g.SetSmoothingMode(SmoothingModeHighQuality); {高质量}

  g.DrawLine(p,11,11,111,111);

  g.SetSmoothingMode(SmoothingModeHighSpeed);   {高速度,低质量}

  g.DrawLine(p,66,11,222,128);

 

  p.Free;

  g.Free;

end;

 

绘图质量参数:

SmoothingModeInvalid     = -1; {指定一个无效模式}

SmoothingModeDefault     = 0;  {指定不消除锯齿}

SmoothingModeHighSpeed   = 1;  {指定高速度、低质量呈现}

SmoothingModeHighQuality = 2;  {指定高质量、低速度呈现}

SmoothingModeNone        = 3;  {指定不消除锯齿}

SmoothingModeAntiAlias   = 4;  {指定消除锯齿的呈现}