打印WPF BitmapImage的 [英] Printing a WPF BitmapImage

问题描述

什么是打印的BitmapImage的最好方法是什么？我来自于System.Drawing中一个背景，所以我想将其转换为位图，然后打印出来，但我想有可能是一个更好的办法。

What's the best way to print a BitmapImage? I come from a background in System.Drawing so I was thinking about converting it to a Bitmap and then printing it, but I'm thinking there's probably a better way.

谢谢！

推荐答案

在德鲁的答案大厦，这是最好的衡量，并安排被交给PrintVisu​​al方法的容器。这将prevent的图像比从被切断一个8.5×11张纸上变大。下面是我的打印方式，这是部分可见图像的例子在屏幕上：

Building upon Drew's answer, it is best to measure and arrange the container that is handed to the PrintVisual method. This will prevent an image that is larger than a 8.5 x 11 sheet of paper from being cut off. Here is an example of how I printed an image that was partially visible on-screen:

PrintDialog dlg = new PrintDialog();
bool? result = dlg.ShowDialog();

if (result.HasValue && result.Value)
{
    ImageViewer.Measure(new Size(dlg.PrintableAreaWidth, dlg.PrintableAreaHeight));
    ImageViewer.Arrange(new Rect(new Point(0, 0), ImageViewer1.DesiredSize));

    dlg.PrintVisual(ImageViewer, "Print a Large Image");
}

图像浏览在我的例子，可以与任何UIElement的容器代替，例如一个StackPanel上，帆布，网格，等。 ImageViewer.Source应设置为所述的BitmapImage即准备好进行打印。

ImageViewer in my example could be replaced with any UIElement container such as a stackpanel, canvas, grid, ect. ImageViewer.Source should be set to the BitmapImage that is ready to be printed.

我从这个网页的想法： HTTP：//www.switchonthe$c$c.com/tutorials/printing -in-WPF

I got the idea from this page: http://www.switchonthecode.com/tutorials/printing-in-wpf

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