SaveGraphics

    class SaveGraphics    {        //使用方法        //Graphics g = chartControl1.CreateGraphics();        //FromGraphics(g, chartControl1.Width, chartControl1.Height).Save("D:/a.jpg");        public static Bitmap FromGraphics(Graphics g, int w, int h)        {            const int SRCCOPY = 0xcc0020;            Bitmap b = new Bitmap(w, h);            Graphics gd = Graphics.FromImage(b);

            BitBlt(new HandleRef(null, gd.GetHdc()), 0, 0, w, h,             new HandleRef(null, g.GetHdc()), 0, 0, SRCCOPY);            gd.ReleaseHdc(); g.ReleaseHdc();            return b;        }        [DllImport("gdi32.dll", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)]        public static extern int BitBlt(HandleRef hDesDC, int x, int y, int w, int h, HandleRef hSrcDC, int xSrc, int ySrc, int dwRop);    }

转载于:https://www.cnblogs.com/_zjl/archive/2010/04/16/1713601.html

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