C#中间含图片的二维码生成实例

1、中间含图片的二维码生成实例这是一个简单的二维码生成实例，我们就用c#的windows程序来写吧。1.新建一个 windows 程序，然后引用 ThoughtWorks.QRCode.dll 这个 dll 没 有可以到网上去copy 一个下来。首先画好这样一个界面，界面非常简单，但是太丑一点，我们做好了再放一个皮肤上去。接下来我们开始写后台代码吧！using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.

2、Text;using System.Windows.Forms;using ThoughtWorks.QRCode.Codec;using System.IO;using System.Drawing.Imaging;namespace WindowsFormsApplication1Public partial class Form1:Form public Form1()InitializeComponent();Private object logoImg; /用于存放 logo 图片Private void Form1_Load(object sender, EventArgs e)t

3、his.skinEngine1.SkinFile = "Calmness.ssk"/<summary>/ 获取二维码生成图片/</summary>/<returns></returns>publicBitmap getcode(string writeStr)QRCodeEncoder qRCodeEncoder =newQRCodeEncoder ();qRCodeEncoder.QRCodeEncodeMode =QRCodeEncoder.ENCODE_MODE.BYTE置二维码编码格式qRCodeEncoder.QRC

4、odeScale = 4;设置编码测量度/qRCodeEncoder.QRCodeVersion =7;设置编码版本/ qRCodeEncoder.QRCodeErrorCorrect =QRCodeEncoder.ERROR_CORRECTIO慢M; 置错误校验Bitmap image = qRCodeEncoder.Encode(writeStr);return image;/<summary>/ 获取 logo/</summary>/<returns></returns>Public Bitmap getlogo()Bitmap newBm

5、p = new Bitmap ("logo.jpg");获取图片 对象Bitmap bmp = new Bitmap (newBmp, 30, 30); /缩放return bmp;/<summary>/ 二维码保存/</summary>/<param name="sender"></param>/<param name="e"></param>Private void Save_Btn_Click(object sender, EventArgs e)SaveF

6、ileDialog saveFile = new SaveFileDialog ();/创建保存对话框/saveFile.Filter ="JPEG|*jpeg;*jpg|位图文件 |*.bmp| 所有文件 |*”; 设置保 存的图片格式if (pictureBox1.Image != null)if (saveFile.ShowDialog() = DialogResult.OK)string sFilePathName = saveFile.FileName;Image img = pictureBox1.Image;img.Save(sFilePathName);else Me

7、ssageBox.Show(情先生成二维码！ ");/<summary>/ 二维码生成/ </summary>/<param name="sender"></param>/<param name="e"></param>Private void ShengCheng_Btn_Click(object sender, EventArgs e)if (Str_Tbx.Text.Trim() != "") /验证输入的生成内容是否为空 Bitmap bCode

8、 = getcode(Str_Tbx.Text);/获取二维码图片if (logoImg = null)pictureBox1.Image = bCode;else Bitmap bLogo = logoImg as Bitmap; / 获取 logo 图片对象bLogo = new Bitmap(bLogo, 30, 30); /改变图片的大小这里我们设置为/30int Y = bCode.Height;int X = bCode.Width;Point point = new Point(X / 2 - 15, Y / 2 - 15);/logo 图片绘制到二维码上，这 里将简单计算一下l

9、ogo 所在的坐标Graphics g = Graphics.Fromlmage(bCode);创建一个画布g.DrawImage(bLogo, point);将logo图片绘制到二维码图片上 pictureBox1.Image = bCode;else MessageBox.Show骐!入生成内容！ ");/<summary>/ logo 上传/</summary>/<param name="sender"></param>/ <param name="e"></param>Private void UpLogo_Btn_Click(object sender, EventArgs e)OpenFileDialog openFileDialog = new OpenFileDialog();欣件打开对话框openFileDialog.Filter ="JPEG|*jpeg;*jpg|位图文件 |*bmp| 所有文件 |*" 只 能打开我们设置的这几类文件if (openFileDialog.ShowDialog() = DialogResult.OK)string fileName = openFi