Windows Transparent Background : Window Style « Windows Presentation Foundation « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Windows Presentation Foundation
3. Window Style

<Window x:Class="Windows.TransparentBackground"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Windows" Height="300" Width="300"
    WindowStyle="None" AllowsTransparency="true">
  <Window.Background>    
    <ImageBrush ImageSource="c:\image.png"></ImageBrush>
  </Window.Background>
    <Grid>
      <Grid.RowDefinitions>
        <RowDefinition></RowDefinition>
        <RowDefinition></RowDefinition>
        <RowDefinition></RowDefinition>
        <RowDefinition></RowDefinition>
      </Grid.RowDefinitions>
      <Button Margin="20" Grid.Row="2">Close</Button>   
    </Grid>
</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 Windows
{
    public partial class TransparentBackground : System.Windows.Window
    {
        public TransparentBackground()
        {
            InitializeComponent();
        }

    }
}

24.72.Window Style
	24.72.1.	Window Background
	24.72.2.	Create a non-rectangular window
	24.72.3.	Transparent Window
	24.72.4.	Non-Rectangular window
	24.72.5.	Windows Transparent Background
	24.72.6.	Set WindowStyle = WindowStyle.ToolWindow
	24.72.7.	Set brush to Window background