1、

 

System.Windows.Controls.PrintDialog printDialog = new System.Windows.Controls.PrintDialog(); if (printDialog.ShowDialog() == true) {

string doc = "茶位费 3.00 1 3.00\n" + "基围虾 0.00 1 0.00\n" + "火爆肥肠 38.00 1 38.00\n";

Run run = new Run(doc); TextBlock visual = new TextBlock(); visual.Inlines.Add(run); visual.Margin = new Thickness(20, 5, 5, 5); visual.TextWrapping = TextWrapping.Wrap; visual.LayoutTransform = new ScaleTransform(1, 1); Size pageSize = new Size(printDialog.PrintableAreaWidth, printDialog.PrintableAreaHeight); visual.Measure(pageSize); visual.Arrange(new Rect(0, 0, pageSize.Width, pageSize.Height)); printDialog.PrintVisual(visual, "doc");

}

 

2、

System.Windows.Controls.PrintDialog printDialog = new System.Windows.Controls.PrintDialog(); if (printDialog.ShowDialog() == true) {

Run run = new Run("this is sad story!");

TextBlock visual = new TextBlock(); visual.Inlines.Add(run);

visual.Margin = new Thickness(15);

visual.TextWrapping = TextWrapping.Wrap; visual.LayoutTransform = new ScaleTransform(5, 5);

Size pageSize = new Size(printDialog.PrintableAreaWidth, printDialog.PrintableAreaHeight); visual.Measure(pageSize);

visual.Arrange(new Rect(0, 0, pageSize.Width, pageSize.Height));

printDialog.PrintVisual(visual, "A Scaled Drawing");

}

 

3、

WPF 中保存 window(窗口)或者canvas成图片

 

最近需要用到这个功能,搜了一下不少代码有问题 ,找到一个效果比较好的，支持多级子元素 记一下.

private void button_save_window_Click(object sender, RoutedEventArgs e) { util.SaveWindow(this,96,"d:\\window.png"); } private void button_save_canvas_Click(object sender, RoutedEventArgs e) { util.SaveCanvas(this,this.canvas1, 96, "d:\\canvas.png"); } } public static class util { public static void SaveWindow(Window window, int dpi, string filename) { var rtb = new RenderTargetBitmap( (int)window.Width, //width (int)window.Width, //height dpi, //dpi x dpi, //dpi y PixelFormats.Pbgra32 // pixelformat ); rtb.Render(window); SaveRTBAsPNG(rtb, filename); } public static void SaveCanvas(Window window, Canvas canvas, int dpi, string filename) { Size size = new Size(window.Width , window.Height ); canvas.Measure(size); //canvas.Arrange(new Rect(size)); var rtb = new RenderTargetBitmap( (int)window.Width, //width (int)window.Height, //height dpi, //dpi x dpi, //dpi y PixelFormats.Pbgra32 // pixelformat ); rtb.Render(canvas); SaveRTBAsPNG(rtb, filename); } private static void SaveRTBAsPNG(RenderTargetBitmap bmp, string filename) { var enc = new System.Windows.Media.Imaging.PngBitmapEncoder(); enc.Frames.Add(System.Windows.Media.Imaging.BitmapFrame.Create(bmp)); using (var stm = System.IO.File.Create(filename)) { enc.Save(stm); } }

转载于:https://www.cnblogs.com/MiLu/p/6028298.html

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