C# ZXing.Net生成二維碼、識別二維碼、生成帶Logo的二維碼（二）

{
//構造二維碼寫(xiě)碼器
myGraphic.DrawImage(logo,middleL,middleT,middleW,middleH);

myGraphic.FillRectangle(Brushes.White,middleL,middleT,middleW,middleH);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
}
Dictionary<EncodeHintType, object> hint = new Dictionary<EncodeHintType, object>();
/// </summary>
BarcodeWriter barcodeWriter = new BarcodeWriter();
Graphics myGraphic = Graphics.FromImage(bmpimg);
//獲取二維碼實(shí)際尺寸（去掉二維碼兩邊空白后的實(shí)際尺寸）

//保存成圖片
/// 生成帶Logo的二維碼
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;

調用：

Bitmap logo = new Bitmap(@"H:\桌面\截圖\102.jpg");
using (Graphics g=Graphics.FromImage(bmpimg))
//Logo 圖片
static void Generate3(string text)
BitMatrix bm = writer.encode(text,BarcodeFormat.QR_CODE,300,300,hint);
Bitmap map = barcodeWriter.Write(bm);

g.DrawImage(map,0,0);

//生成帶圖片的二維碼 Generate3("https://www.baidu.com/"); Generate3("ionic是一個(gè)強大的混合式/hybrid HTML5移動(dòng)開(kāi)發(fā)框架，特點(diǎn)是使用標準的HTML、CSS和JavaScript，開(kāi)發(fā)跨平臺的應用 ，只需要幾步就可以快速創(chuàng )建您的Ionic應用，創(chuàng )建應用從這里開(kāi)始");

hint.Add(EncodeHintType.CHARACTER_SET,"UTF-8");
}

?

//白底

/// <summary>

//將img轉換成bmp格式，否則后面無(wú)法創(chuàng )建Graphics對象
int middleW = Math.Min((int)(rectangle[2] / 3.5), logo.Width);

1.使用ZXint.Net生成帶logo的二維碼

hint.Add(EncodeHintType.ERROR_CORRECTION,ErrorCorrectionLevel.H);

//計算插入圖片的大小和位置
bmpimg.Save(@"H:\桌面\截圖\generate3.png",ImageFormat.Png);
Bitmap bmpimg = new Bitmap(map.Width,map.Height,PixelFormat.Format32bppArgb);
{
/// <param></param>
int middleL = (map.Width - middleW) / 2;
int[] rectangle = bm.getEnclosingRectangle();

//將二維碼插入圖片
int middleH = Math.Min((int)(rectangle[3]/3.5),logo.Height);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;

//生成二維碼
int middleT = (map.Height - middleH) / 2;

MultiFormatWriter writer = new MultiFormatWriter();