Question

从标题中你可以看到，这个问题已在过去讨论过了。我已将之前的帖子作为参考，并尝试在Zebra标签打印机上打印位图图像。我无法打印我要查找的图像。请不要忽视它的讨论。

请查看下面提到的代码段：

private string TestImage()
    {
        string filepath = Application.StartupPath + "\\ImageSymbols\\CSA.bmp";

        byte[] bitmapFileData = System.IO.File.ReadAllBytes(filepath);
        int fileSize = bitmapFileData.Length;

        // Retrieve the image.
        Bitmap image1 = new Bitmap(filepath, true);


        //Siva - Not in use
        Rectangle rect1 = new Rectangle(0, 0, image1.Width, image1.Height);
        System.Drawing.Imaging.BitmapData bmpData1 =
        image1.LockBits(rect1, System.Drawing.Imaging.ImageLockMode.ReadWrite,
        image1.PixelFormat);



        //Gets the height and width of the bitmap file
        int bitmapDataHeight = image1.Height;
        int bitmapDataWidth = image1.Width;

        //Gets the size of the bitmap file
        long bitmapDataFileSize = new FileInfo(filepath).Length;


        //Gets the size of the bitmap file in integer
        int bitmapDataFileSizeInt = Convert.ToInt32(bitmapDataFileSize);

        //Gets the bitmap offset data in bytes. 
        byte[] test = bitmapFileData.Skip(10).Take(1).ToArray();

        //assigns the bitmap offset data to a array value
        byte bitmapDataOffset = test[0]; // i am getting offset value = 62

        //changes the bitmap offset data to a integer value
        int bitmapDataOffsetInt = Convert.ToInt32(bitmapDataOffset);

        //gets the bitmap data file size by subtracting the file size with the bitmap offset data size
        int bitmapDataSize = bitmapDataFileSizeInt - bitmapDataOffset;

        //int width = 80;
        //int height = 80;
        int bitsPerPixel = 1; // Monochrome image required!
        //int bitmapDataLength = 8160;

        double widthInBytes = Math.Ceiling(bitmapDataWidth / 8.0);


        // Copy over the actual bitmap data from the bitmap file.
        // This represents the bitmap data without the header information.
        byte[] bitmap = new byte[bitmapDataSize];
        //bmpData1
        Buffer.BlockCopy(bitmapFileData, bitmapDataOffset, bitmap, 0, bitmapDataSize);

        // Invert bitmap colors
        for (int i = 0; i < bitmapDataSize; i++)
        {
            bitmap[i] ^= 0xFF;
        }

        // Create ASCII ZPL string of hexadecimal bitmap data
        string ZPLImageDataString = BitConverter.ToString(bitmapFileData);
        ZPLImageDataString = ZPLImageDataString.Replace("-", string.Empty);

        string str = "";
        return str = "^XA^FO100,100^GFA," + //At Postion 100, 100
            bitmapDataSize.ToString() + "," +     // Total bytes of data to be placed
            bitmapDataSize.ToString() + "," +     // Total bytes of data to be placed, repeats as per API
            widthInBytes + "," + //
            ZPLImageDataString + "^XZ";

使用上面的示例代码，我无法在Zibra标签打印机上打印位图图像。我不想使用Zebra网桥将bmp转换为GRF图像类型。

任何人都可以告诉我我犯错误的地方吗？我得到偏移值的方式是错误的吗？（当前它的62，不知道我的图像是否正确。任何人都可以建议我找到位图图像偏移值的公式）

Answer 1

您可以下载具有库功能的Zebra SDK here来执行此转换和打印。它需要通过几个阶段，抖动以获得每像素1位的黑白需要首先发生，然后调整大小/缩放，然后最终为它创建ZPL。 SDK为你做了所有这些......

在ZPL标签打印机上打印位图图像

1 个答案: