Load image from file and print it using WPF… how?

问题

I'm looking for an example of how to load an image from file and print it on a page using WPF. I'm having a hard time finding good information about WPF printing.

回答1:

var bi = new BitmapImage();
bi.BeginInit();
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.UriSource = new Uri("");
bi.EndInit();

var vis = new DrawingVisual();
using (var dc = vis.RenderOpen())
{
    dc.DrawImage(bi, new Rect { Width = bi.Width, Height = bi.Height });
}

var pdialog = new PrintDialog();
if (pdialog.ShowDialog() == true)
{
    pdialog.PrintVisual(vis, "My Image");
}

回答2:

Just load the image and apply it to a visual. Then use the PrintDialog to do the work.

...
PrintDialog printer = new PrintDialog();

if (printer.ShowDialog()) {
  printer.PrintVisual(myVisual, "A Page Title");
}

回答3:

If you want more control then PrintDialog.PrintVisual gives you you have to wrap your image in a FixedDocumet.

You can find simple code that creates a fixed document here: http://www.ericsink.com/wpf3d/B_Printing.html

来源：https://stackoverflow.com/questions/265062/load-image-from-file-and-print-it-using-wpf-how