使用 code128.BarHeight 时在条形码下方显示文本

Question

我正在尝试在条形码下方显示文本，但到目前为止没有成功。

这是我目前尝试过的；

Bitmap bmpButton = new Bitmap(206, 38);
Bitmap bmpBackground = new Bitmap(CreateBarcode("AA12334566"));

// We use the default image as a background brush
TextureBrush objBrush = new TextureBrush(bmpBackground);

Graphics objGraphics;
objGraphics = Graphics.FromImage(bmpButton);
// objGraphics.TextRenderingHint = Drawing.Text.TextRenderingHint.AntiAlias

// We draw the background image...
objGraphics.FillRectangle(objBrush, 0, 0, 206, 38);

objGraphics.DrawString("AA1234567", new System.Drawing.Font("Arial", 8, FontStyle.Regular), SystemBrushes.WindowText, new Point(0, 14));

Response.ContentType = "image/jpeg";
bmpButton.Save(Response.OutputStream, ImageFormat.Jpeg);


private System.Drawing.Image CreateBarcode(string data)
{
Barcode128 code128 = new Barcode128();
code128.Code = data;
System.Drawing.Image barCode = code128.CreateDrawingImage(System.Drawing.Color.Black, System.Drawing.Color.White);
return barCode;
}

Answer 1

代码

        private void Form1_Load(object sender, EventArgs e)
        {
            Bitmap bmpButton = new Bitmap(206, 48);
            Graphics graphics = Graphics.FromImage(bmpButton);

            graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
            graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
            graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
            graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;


            graphics.FillRectangle(Brushes.White, new Rectangle(0, 0, 206, 48));
            graphics.DrawImage(CreateBarcode("AA12334566"), 5, 5);
            graphics.DrawString("AA12334566",new Font(FontFamily.GenericSansSerif, 12), Brushes.Black, new RectangleF(0, 28, 206, 20));

            graphics.Save();
            bmpButton.Save(@"D:3.jpeg", ImageFormat.Jpeg);
        }

        private System.Drawing.Image CreateBarcode(string data)
        {
            Barcode128 code128 = new Barcode128();
            code128.Code = data;
            System.Drawing.Image barCode = code128.CreateDrawingImage(System.Drawing.Color.Black, System.Drawing.Color.White);
            return barCode;
        }

结果图片

并且请不要拉伸条形码图像，因为它会导致错误的转换

////// 旧答案 /////

objGraphics.DrawString("AA1234567", new System.Drawing.Font("Arial", 8, FontStyle.Regular), SystemBrushes.WindowText, new Point(0, 14));

in above line at the end [new Point(0, 14)] 指定文本的位置为 x-axis 和 y-axis 并且如果你想要降低文本的位置你可以增加 y 而不是 14 使用 28

使用 code128.BarHeight 时在条形码下方显示文本

Display text underneath barcode when using code128.BarHeight

c#

image

image-processing

barcode

itext