c# 仿微信二维码生成

来源：互联网发布：网络人工投票公司编辑：程序博客网时间：2024/05/01 22:11

  /// <summary>        /// 生成二维码.        /// </summary>        /// <param name="data">需要添加进去的文本</param>        /// <returns></returns>        public System.Drawing.Image GCode(String data)        {            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();            qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;            qrCodeEncoder.QRCodeScale = 5;            qrCodeEncoder.QRCodeVersion = 7;            qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;            var pbImg = qrCodeEncoder.Encode(data, System.Text.Encoding.UTF8);            var width = pbImg.Width / 10;            var dwidth = width * 2;            Bitmap bmp = new Bitmap(pbImg.Width + dwidth, pbImg.Height + dwidth);            Graphics g = Graphics.FromImage(bmp);            var c = System.Drawing.Color.White;            g.FillRectangle(new SolidBrush(c), 0, 0, pbImg.Width + dwidth, pbImg.Height + dwidth);            g.DrawImage(pbImg, width, width);            g.Dispose();            return bmp;        }        /// <summary>        /// 调用此函数后使此两种图片合并，类似相册，有个        /// 背景图，中间贴自己的目标图片        /// </summary>        /// <param name="sourceImg">粘贴的源图片</param>        /// <param name="destImg">粘贴的目标图片</param>        public static System.Drawing.Image CombinImage(System.Drawing.Image imgBack, string destImg)        {            System.Drawing.Image img = System.Drawing.Image.FromFile(destImg);        //照片图片              if (img.Height != 50 || img.Width != 50) {                img = KiResizeImage(img, 50, 50, 0);            }            Graphics g = Graphics.FromImage(imgBack);            g.DrawImage(imgBack, 0, 0, imgBack.Width, imgBack.Height);      //g.DrawImage(imgBack, 0, 0, 相框宽, 相框高);             //g.FillRectangle(System.Drawing.Brushes.White, imgBack.Width / 2 - img.Width / 2 - 1, imgBack.Width / 2 - img.Width / 2 - 1,1,1);//相片四周刷一层黑色边框            //g.DrawImage(img, 照片与相框的左边距, 照片与相框的上边距, 照片宽, 照片高);            g.DrawImage(img, imgBack.Width / 2 - img.Width / 2, imgBack.Width / 2 - img.Width / 2 , img.Width, img.Height);            GC.Collect();            return imgBack;        }        /// <summary>        /// Resize图片        /// </summary>        /// <param name="bmp">原始Bitmap</param>        /// <param name="newW">新的宽度</param>        /// <param name="newH">新的高度</param>        /// <param name="Mode">保留着，暂时未用</param>        /// <returns>处理以后的图片</returns>        public static System.Drawing.Image KiResizeImage(System.Drawing.Image bmp, int newW, int newH, int Mode)        {            try            {                System.Drawing.Image b = new Bitmap(newW, newH);                Graphics g = Graphics.FromImage(b);                 // 插值算法的质量                g.InterpolationMode = InterpolationMode.HighQualityBicubic;                g.DrawImage(bmp, new Rectangle(0, 0, newW, newH), new Rectangle(0, 0, bmp.Width, bmp.Height), GraphicsUnit.Pixel);                g.Dispose();                return b;            }            catch            {                return null;            }        }

调用

CombinImage(GCode(Text), linkpath).Save(SavePath);