Replease mouse with Mouse.Capture(null)

     
<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MouseInput" Height="300" Width="300">
    <Grid>
      <Ellipse Fill="Blue" x:Name="myEllipse" />
    </Grid>
</Window>


//File:Window.xaml.vb
Imports System
Imports System.Collections.Generic
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Shapes
Imports System.Diagnostics


Namespace WpfApplication1
  Public Partial Class Window1
    Inherits System.Windows.Window
    Public Sub New()
      InitializeComponent()


      AddHandler myEllipse.MouseUp, AddressOf myEllipse_MouseUp
    End Sub

    Private Sub myEllipse_MouseUp(sender As Object, e As MouseButtonEventArgs)
      Mouse.Capture(Nothing)
    End Sub


  End Class
End Namespace

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4.	Grid MouseLeftButtonDown action and PreviewMouseLeftButtonDown action
5.	Detect whether the mouse button is pressed or released using the MouseButtonState property.
6.	Handler MouseLeftButtonDown and MouseLeftButtonUp events
7.	Make an object follow the mouse pointer as it moves on the screen.
8.	Use Mouse.AddPreviewMouseDownHandler(myEllipse, PreviewMouseDownEllipse);
9.	Use Mouse.AddMouseDownHandler(myEllipse, MouseDownEllipse);
10.	Use Mouse.PreviewMouseDown /Mouse.MouseDown Attribute from Grid element
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14.	Get mouse position with Mouse.GetPosition
15.	Retrieving the mouse position relative to controls on a Window
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18.	Use the Mouse Wheel action methods that are defined by the IScrollInfo interface
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20.	Use EventSetter to add mouse event handler
21.	Mouse.LostMouseCaptureEvent
22.	Use Mouse.Capture to let a Control capture an event
23.	Point Hit Test

Replease mouse with Mouse.Capture(null) : Mouse « Windows Presentation Foundation « VB.Net

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