Set cursor area

   
  

<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="cursors" Height="450" Width="600" Loaded="OnLoaded">
  <Window.Resources>
    <Style TargetType="{x:Type RadioButton}">
      <Setter Property="Margin" Value="3" />
    </Style>
    <Style TargetType="{x:Type Label}">
      <Setter Property="FontSize" Value="14" />
      <Setter Property="HorizontalAlignment" Value="Center" />
    </Style>
    <Style TargetType="{x:Type Border}">
      <Setter Property="BorderBrush" Value="LightBlue" />
      <Setter Property="BorderThickness" Value="2" />
      <Setter Property="Margin" Value="10" />
    </Style>
  </Window.Resources>

  <StackPanel>
    <Border Width="300">
      <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
        <StackPanel Margin="10">
          <Label HorizontalAlignment="Left">Cursor Type</Label>
          <ComboBox Width="100" SelectionChanged="CursorTypeChanged" HorizontalAlignment="Left" Name="CursorSelector">
            <ComboBoxItem Content="AppStarting" />
            <ComboBoxItem Content="ArrowCD" />
          </ComboBox>
        </StackPanel>
        <StackPanel Margin="10">
          <Label HorizontalAlignment="Left">Scope of Cursor</Label>
          <StackPanel>
            <RadioButton Name="rbScopeElement" IsChecked="True" Checked="CursorScopeSelected">Display Area Only</RadioButton>
            <RadioButton Name="rbScopeApplication" Checked="CursorScopeSelected">Entire Appliation</RadioButton>
          </StackPanel>
        </StackPanel>
      </StackPanel>
    </Border>
    <Border Name="DisplayArea" Height="250" Width="400" Margin="20" Background="AliceBlue">
      <Label HorizontalAlignment="Center">
        Move Mouse Pointer Over This Area
      </Label>
    </Border>
  </StackPanel>
</Window>

//File:Window.xaml.cs

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Input;
using System.IO;
using System.Collections;


namespace WpfApplication1
{
    public partial class Window1 : Window
    {
        Cursor CustomCursor;
       
        public Window1()
        {
            CustomCursor = new Cursor(Directory.GetCurrentDirectory() +Path.DirectorySeparatorChar + "CustomCursor.cur");
        }
        public void CursorTypeChanged(object sender, SelectionChangedEventArgs e)
        {
            ComboBox source = e.Source as ComboBox;

            if (source != null)
            {
                ComboBoxItem selectedCursor = source.SelectedItem as ComboBoxItem;
                
                switch (selectedCursor.Content.ToString())
                {
                    case "AppStarting":
                        DisplayArea.Cursor = Cursors.AppStarting;
                        break;
                    case "ArrowCD":                        
                        DisplayArea.Cursor = Cursors.ArrowCD;
                        break;
                    default:
                        break;
                }

                if (cursorScopeElementOnly == false)
                {
                    Mouse.OverrideCursor = DisplayArea.Cursor;
                }
            }
        }
        public void CursorScopeSelected(object sender, RoutedEventArgs e)
        {
            RadioButton source = e.Source as RadioButton;

            if (source != null)
            {
                if (source.Name == "rbScopeElement")
                {
                    cursorScopeElementOnly = true;
                    Mouse.OverrideCursor = null;
                }
                if (source.Name == "rbScopeApplication")
                {
                   cursorScopeElementOnly = false;
                   Mouse.OverrideCursor = DisplayArea.Cursor;
                }
            }
        }
        public void OnLoaded(object sender, RoutedEventArgs e)
        {
            ((ComboBoxItem)CursorSelector.Items[0]).IsSelected = true;
        }
        private bool cursorScopeElementOnly = true;
    }
}