c＃如何在多页中打印出一个图像框的数组

Question

使用C＃，我编写了以下代码，以在picturebox pictureboxarr []的数组（size = TotalToprint）中打印出图像，每个代码的大小为100x100像素。我想垂直打印它们，它们之间的20像素距离高度distanceBetemages Imimages的问题是，它仅在1页上打印（例如字母尺寸），无论它只有多少张图像（然后仅打印8张图像并删除其余图像）。如何解决此问题并在多页上打印？

    int totalToPrint;
    int xFirstAncorPoint = 100;
    int yFirstAncorPoint = 100;
    int ImagSize = 100; // Squre of 100x100 pixel 
    int heightDistanceBetweenImages = 20;



  PrintDialog pd = new PrintDialog();
        PrintDocument pDoc = new PrintDocument();
        pDoc.PrintPage += PrintPicture;
        pd.Document = pDoc;
        if (pd.ShowDialog() == DialogResult.OK)
        {
            pDoc.Print();
        }

    }


    public void PrintPicture(Object sender, PrintPageEventArgs e)
    {
        Bitmap bmp1 = new Bitmap(ImagSize , totalToPrint * (ImagSize + heightDistanceBetweenImages));
        for (int i = 0; i < totalToPrint; i++)
        {
            pictureBoxArr[i].DrawToBitmap(bmp1, new Rectangle(0, i * (heightDistanceBetweenImages + ImagSize), pictureBoxArr[0].Width, pictureBoxArr[0].Height));
        }
        e.Graphics.DrawImage(bmp1, xFirstAncorPoint, yFirstAncorPoint);
        bmp1.Dispose();
    }

Answer 1

你大约在那里。 将是您的未来参考。

printPage不仅为您提供了绘图空间；它还具有您的页面范围，页面边距等。如果您需要打印更多页面，它还设置了HASMOREPAGES属性。此属性默认为false，因此您仅打印1页。另外，如果在页面的边界之外，它不会打印出来。随着这里和那里的一点变化，您最终会得到类似的东西。

// using queue to manage images to print
Queue<Image> printImages = new Queue<Image>();
int totalToPrint;
int xFirstAncorPoint = 100;
int yFirstAncorPoint = 100;
int ImagSize = 100; // Squre of 100x100 pixel 
int heightDistanceBetweenImages = 20;

private void btnPrintTest_Click(object sender, EventArgs e) {
    PrintDialog pd = new PrintDialog();
    PrintDocument pDoc = new PrintDocument();
    pDoc.PrintPage += PrintPicture;
    pd.Document = pDoc;
    if (pd.ShowDialog() == DialogResult.OK) {
        // add image references to printImages queue.
        for (int i = 0; i < pictureBoxArr.Length; i++) {
            printImages.Enqueue(pictureBoxArr[i].Image);
        }
        pDoc.Print();
    }
}

private void PrintPicture(object sender, PrintPageEventArgs e) {
    int boundsHeight = e.MarginBounds.Height;       // Get height of bounds that we are expected to print in.
    int currentHeight = yFirstAncorPoint;

    while (currentHeight <= boundsHeight && printImages.Count > 0) {
        var nextImg = printImages.Peek();
        int nextElementHeight = nextImg.Height + heightDistanceBetweenImages;

        if (nextElementHeight + currentHeight <= boundsHeight) {
            e.Graphics.DrawImage(nextImg, new PointF(xFirstAncorPoint, currentHeight + heightDistanceBetweenImages));

            printImages.Dequeue();
        }

        currentHeight += nextElementHeight;
    }

    // how we specify if we may have more pages to print
    e.HasMorePages = printImages.Count > 0;
}

希望这能使您走上正确的道路，并为您的代码进行一些较小的调整，您将拥有所需的东西。