/// <summary>
/// 创建带图片的二维码
/// </summary>
/// <param name="message">信息</param>
/// <param name="middleImg">图片</param>
/// <param name="pixel">大小</param>
/// <returns></returns>
private Bitmap CreateQrCode(string message, string imagePath, int pixel)
{
using (Image middleImg = new Bitmap(imagePath))
{
//构造二维码写码器
MultiFormatWriter mutiWriter = new MultiFormatWriter();
Dictionary <EncodeHintType, object> encodeHint = new Dictionary <EncodeHintType, object>();
encodeHint.Add(EncodeHintType.CHARACTER_SET, "UTF-8");
encodeHint.Add(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
//生成二维码
BitMatrix bitMatrix = mutiWriter.encode(message, BarcodeFormat.QR_CODE, pixel, pixel, encodeHint);
ZKWebNet.BarcodeWriter barcodeWriter = new ZKWebNet.BarcodeWriter();
Bitmap bitmap = barcodeWriter.Write(bitMatrix);
//获取二维码实际尺寸（去掉二维码两边空白后的实际尺寸）
int[] rectangle = bitMatrix.getEnclosingRectangle();
//计算插入图片的大小和位置
int middleImgW = Math.Min((int)(rectangle[2] / 3.5), middleImg.Width);
int middleImgH = Math.Min((int)(rectangle[3] / 3.5), middleImg.Height);
int middleImgL = (bitmap.Width - middleImgW) / 2;
int middleImgT = (bitmap.Height - middleImgH) / 2;
//将img转换成bmp格式，否则后面无法创建 Graphics对象
Bitmap bmpimg = new Bitmap(bitmap.Width, bitmap.Height, PixelFormat.Format32bppArgb);
using (Graphics graphics = Graphics.FromImage(bmpimg))
{
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.SmoothingMode = SmoothingMode.HighQuality;
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.DrawImage(bitmap, 0, 0);
}
//在二维码中插入图片
using (Graphics myGraphic = Graphics.FromImage(bmpimg))
{
//白底
myGraphic.FillRectangle(Brushes.White, middleImgL, middleImgT, middleImgW, middleImgH);
myGraphic.DrawImage(middleImg, middleImgL, middleImgT, middleImgW, middleImgH);
}
bitmap.Dispose();
return(bmpimg);
}
}
/// <summary>
/// 创建一维码
/// </summary>
/// <param name="message"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <returns></returns>
private Bitmap CreateBarCode(string message, int width, int height)
{
CodaBarWriter codaBarWriter = new CodaBarWriter();
BitMatrix bitMatrix = codaBarWriter.encode(message, BarcodeFormat.ITF, width, height);
ZKWebNet.BarcodeWriter barcodeWriter = new ZKWebNet.BarcodeWriter();
barcodeWriter.Options = new EncodingOptions()
{
Margin = 3,
PureBarcode = true
};
Bitmap bitmap = barcodeWriter.Write(bitMatrix);
return(bitmap);
}
/// <summary>
/// 创建不带图片的二维码
/// </summary>
/// <param name="message">信息</param>
/// <param name="pixel">大小</param>
/// <returns></returns>
private Bitmap CreateQrCode(string message, int pixel)
{
ZKWebNet.BarcodeWriter barcodeWriter = new ZKWebNet.BarcodeWriter();
EncodingOptions encodingOptions = new QrCodeEncodingOptions
{
DisableECI = true,
CharacterSet = "UTF-8",
Width = pixel,
Height = pixel,
ErrorCorrection = ErrorCorrectionLevel.H,
};
barcodeWriter.Format = BarcodeFormat.QR_CODE;
barcodeWriter.Options = encodingOptions;
Bitmap bitmap = barcodeWriter.Write(message);
return(bitmap);
}
