自定义窗口1、图形方式

<Window x:Class="WpfApplication5.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300"  AllowsTransparency="True" WindowStyle="None"
        MouseLeftButtonDown="Window_MouseLeftButtonDown">
    <Window.Background>
        <ImageBrush ImageSource="shapes.png"></ImageBrush>
    </Window.Background>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition />
        </Grid.ColumnDefinitions>
        <Button  Name="button1"  Grid.Row="1" Grid.Column="1" Margin="10,40,10,40" Click="button1_Click">关闭不规则的窗口</Button>
    </Grid>
</Window>

private void button1_Click(object sender, RoutedEventArgs e)
{
      this.Close();
}
private void Window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
      this.DragMove();}
}