WPF C# Tutorial

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="NonRectangularWindowSample" Width="210" Height="170"
  WindowStyle="None" AllowsTransparency="True" Background="Transparent">
  
    
      
        
          
            
            
            
            
          

        
      

      
        
          
            
              
              
              
              
              
              
              
            
          

        

      

      
        
      

    
    
      x
    
  


//File:Window.xaml.cs
using System;
using System.Windows;
using System.Windows.Input;
namespace Windows {
    public partial class TransparentWithShapes : Window
    {
        public TransparentWithShapes()
        {
            InitializeComponent();
        }
        private void window_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            this.DragMove();
        }
        private void cmdClose_Click(object sender, RoutedEventArgs e)
        {
            this.Close();
        }
    }
}