Print Visual(Canvas) : UI Element « Windows Presentation Foundation « C# / C Sharp






Print Visual(Canvas)

Print Visual(Canvas)
    
<Window x:Class="Printing.PrintVisual"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="PrintVisual" Height="259" Width="282">
    <StackPanel>
      <Canvas Name="canvas">
        <TextBlock Canvas.Top="50" Canvas.Left="20" FontSize="25" FontWeight="Bold">Hello There</TextBlock>

        <Path Fill="Yellow" Stroke="Blue" Margin="5" Canvas.Top="10" Canvas.Left="10" >
          <Path.Data>
            <GeometryGroup>
              <RectangleGeometry Rect="0 0 100 100"></RectangleGeometry>
              <EllipseGeometry Center="50 50" RadiusX="35" RadiusY="25"></EllipseGeometry>
            </GeometryGroup>
          </Path.Data>
        </Path>
      </Canvas>
      <Button Grid.Row="3" Click="cmdPrint_Click">Print</Button>
    </StackPanel>
</Window>

//File:Window.xaml.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace Printing
{
    public partial class PrintVisual : System.Windows.Window
    {

        public PrintVisual()
        {
            InitializeComponent();
        }

        private void cmdPrint_Click(object sender, RoutedEventArgs e)
        {
            PrintDialog printDialog = new PrintDialog();
            
            if (printDialog.ShowDialog() == true)
            {             
                double zoom = 30;                 

                canvas.Background = Brushes.LightSteelBlue;                                    
                    
                canvas.LayoutTransform = new ScaleTransform(zoom / 100, zoom / 100);

                Size pageSize = new Size(printDialog.PrintableAreaWidth - 20, printDialog.PrintableAreaHeight - 20);
                    
                canvas.Measure(pageSize);
                canvas.Arrange(new Rect(10, 10, pageSize.Width, pageSize.Height));

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

                canvas.Background = null;
                canvas.LayoutTransform = null;                        
            }
        }
    }
}

   
    
    
    
  








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