Mouse Position and TranslateTransform : Mouse « Windows Presentation Foundation « C# / C Sharp

1. C# / C Sharp
2. Windows Presentation Foundation
3. Mouse

Mouse Position and TranslateTransform

  

<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
  xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
  xmlns:d="http://schemas.microsoft.com/expression/interactivedesigner/2006"
  mc:Ignorable="d"
  x:Class="InputExamples.MousePosition" Width="640" Height="480">
  <Rectangle Width="Auto" Height="Auto" x:Name="Rectangle" StrokeDashCap="Square" />
  <Ellipse Width="14" Height="14" x:Name="secondEllipse"/>
  <Ellipse d:LayoutOverrides="Height" Margin="20" Width="14" Height="14" x:Name="firstEllipse"/>
  <Ellipse d:LayoutOverrides="Width" Margin="30" Width="14" Height="14" x:Name="fourthEllipse"/>
  <Ellipse d:LayoutOverrides="Width" Margin="20" Width="14" Height="14" x:Name="thirdEllipse"/>
  <Ellipse Fill="Red" Margin="10" Width="16" Height="16" x:Name="DragEllipse"/>
</Grid>

//File:Window.xaml.cs
using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace InputExamples
{
  public partial class MousePosition
  {
    private TranslateTransform ellipseTransform = new TranslateTransform();
    
    public MousePosition()
    {
      this.InitializeComponent();
    }
    
    protected override void OnInitialized(EventArgs e)
    {
      base.OnInitialized(e);
      
      DragEllipse.RenderTransform = ellipseTransform;
      CompositionTarget.Rendering += this.CompositionTarget_Rendering;
    }

    private void CompositionTarget_Rendering(object sender, EventArgs e)
    {
          Point mouse1 = Mouse.GetPosition(firstEllipse);
          Point mouse2 = Mouse.GetPosition(secondEllipse);
          Point mouse3 = Mouse.GetPosition(thirdEllipse);
          Point mouse4 = Mouse.GetPosition(fourthEllipse);
              
          Console.WriteLine(mouse1.ToString());
          Console.WriteLine(mouse2.ToString());
          Console.WriteLine(mouse3.ToString());
          Console.WriteLine(mouse4.ToString());
          
          Point position = Mouse.GetPosition(DragEllipse);
          ellipseTransform.X += position.X - (DragEllipse.Width / 2);
          ellipseTransform.Y += position.Y - (DragEllipse.Height / 2);
    }
  }
}

   
    
  

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3.	Mouse Position
4.	Detect whether the mouse button is pressed or released using the MouseButtonState property.
5.	Handler MouseLeftButtonDown and MouseLeftButtonUp events
6.	Mouse Enter and leave a Border
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
11.	Grid MouseMove
12.	Grid MouseLeftButtonDown
13.	Grid MouseLeftButtonUp
14.	UI Element Mouse Clicked Events
15.	Handles the MouseDown event on the Canvas
16.	Handles the MouseDown event on the UniformGrid
17.	Mouse cursor override and clear
18.	Check the mouse event source
19.	Use the Mouse Wheel action methods that are defined by the IScrollInfo interface
20.	Mouse.LostMouseCaptureEvent
21.	Use Mouse.Capture to let a Control capture an event
22.	Capture Mouse Ellipse
23.	Get mouse position with Mouse.GetPosition
24.	Point Hit Test
25.	Replease mouse with Mouse.Capture(null)
26.	Hit Result Behavior