核心代码：
/// <summary>
/// 打印一维码
/// </summary>
/// <param name="codeText"></param>
/// <param name="g"></param>
/// <param name="pointX"></param>
/// <param name="pointY"></param>
/// <param name="width"></param>
/// <param name="height"></param>
public void PrintBarcode(string codeText, Graphics g, int pointX, int pointY, int width, int height)
{
C1BarCode code = new C1BarCode();
code.CodeType = CodeTypeEnum.Code128;
code.Text = codeText;
try
{
g.DrawImage(code.Image, pointX, pointY, width, height);
}
catch (Exception ex)
{
if (code.Image == null)
{
MessageBox.Show("需要打印的字段中存在空值,条码会出现残缺，请检查是否维护了某些需要打印的字段" + ex.Message + "\n Some Information Need To Be Printed Is null, Please Contact Maintain It");
}
} }
/// <summary>
/// 图片压缩式生成二维码，***添
/// </summary>
/// <param name="e">e</param>
/// <param name="QrBarcodeInfo">条码扫描出的信息</param>
/// <param name="mapSize_x">bitmap x坐标</param>
/// <param name="mapSize_y">bitmap y坐标</param>
/// <param name="Qrbarcode_x">条码 x坐标</param>
/// <param name="Qrbarcode_y">条码 y坐标</param>
/// <param name="Qrbarcode_size">条码 长宽</param>
public void Print_Image_Qrcode(System.Drawing.Printing.PrintPageEventArgs e, string QrBarcodeInfo, int mapSize_x, int mapSize_y, int Qrbarcode_x, int Qrbarcode_y, int Qrbarcode_size)
{
DotNetBarcode qrCode = new DotNetBarcode(DotNetBarcode.Types.QRCode);
qrCode.QRQuitZone = ;
//qrCode.PrintChar = true;
Bitmap bitmap = new Bitmap(mapSize_x, mapSize_y); //50 * 4， 50 * 4
Graphics gp = Graphics.FromImage(bitmap); //取图片作为 Graphics
qrCode.QRWriteBar(QrBarcodeInfo, , , , gp); //画出二维码，图片的大小为二维码大小
gp.Dispose();
//pictureBox1.Image = bitmap;
e.Graphics.DrawImage(bitmap, Qrbarcode_x, Qrbarcode_y, Qrbarcode_size, Qrbarcode_size); //将二维码图片 打印出来，缩放 35*4， 35*4
} /// <summary>
/// 打印二维码
/// </summary>
/// <param name="codeText"></param>
/// <param name="pointX"></param>
/// <param name="pointY"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="g"></param>
public void PrintBarcode_QrCode(string codeText, float pointX, float pointY, float width, float height, Graphics g)
{
DotNetBarcode qrCode = new DotNetBarcode(DotNetBarcode.Types.QRCode);
qrCode.QRQuitZone = ;
qrCode.WriteBar(codeText, pointX, pointY, width, height, g);
}
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