[C#/WPF] MouseButtonEventArgs 클래스 : GetPosition 메소드를 사용해 마우스 좌표 구하기

■ MouseButtonEventArgs 클래스의 GetPosition 메소드를 사용해 마우스 좌표를 구하는 방법을 보여준다.

▶ MainWindow.xaml


<Window x:Class="TestProject.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="800"
    Height="600"
    Title="MouseButtonEventArgs 클래스 : GetPosition 메소드를 사용해 마우스 좌표 구하기"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*"    />
            <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <Grid Name="grid" Grid.Row="0"
            Margin="10"
            Background="Gray">
            <Canvas Name="canvas"
                Margin="10"
                Width="300"
                Height="300"
                Background="Orange">
                <Rectangle Name="rectangle" Canvas.Left="50" Canvas.Top="50"
                    Width="150"
                    Height="150"
                    Fill="Blue" />
            </Canvas>
        </Grid>
        <Label Name="messageLabel" Grid.Row="1"
            Margin="10"
            Content="" />
    </Grid>
</Window>

<Window x:Class="TestProject.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Width="800"

Height="600"

Title="MouseButtonEventArgs 클래스 : GetPosition 메소드를 사용해 마우스 좌표 구하기"

FontFamily="나눔고딕코딩"

FontSize="16">

<Grid>

<Grid.RowDefinitions>

</Grid.RowDefinitions>

<Grid Name="grid" Grid.Row="0"

Margin="10"

Background="Gray">

<Canvas Name="canvas"

Margin="10"

Width="300"

Height="300"

Background="Orange">

<Rectangle Name="rectangle" Canvas.Left="50" Canvas.Top="50"

Width="150"

Height="150"

Fill="Blue" />

</Canvas>

</Grid>

<Label Name="messageLabel" Grid.Row="1"

Margin="10"

Content="" />

</Grid>

</Window>

▶ MainWindow.xaml.cs


using System.Text;
using System.Windows;
using System.Windows.Input;

namespace TestProject
{
    /// <summary>
    /// 메인 윈도우
    /// </summary>
    public partial class MainWindow : Window
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainWindow()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainWindow()
        {
            InitializeComponent();

            MouseDown += Window_MouseDown;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region 윈도우 마우스 DOWN 처리하기 - Window_MouseDown(sender, e)

        /// <summary>
        /// 윈도우 마우스 DOWN 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Window_MouseDown(object sender, MouseButtonEventArgs e)
        {
            Point windowMousePoint    = e.GetPosition(null          ); // null 대신 this도 가능하다.
            Point gridMousePoint      = e.GetPosition(this.grid     );
            Point canvasMousePoint    = e.GetPosition(this.canvas   );
            Point rectangleMousePoint = e.GetPosition(this.rectangle);

            StringBuilder stringBuilder = new StringBuilder();

            stringBuilder.AppendLine($"SENDER          : {sender.GetType()          }");
            stringBuilder.AppendLine($"ORIGINAL SOURCE : {e.OriginalSource.GetType()}");
            stringBuilder.AppendLine($"WINDOW          : {windowMousePoint          }");
            stringBuilder.AppendLine($"GRID            : {gridMousePoint            }");
            stringBuilder.AppendLine($"CANVAS          : {canvasMousePoint          }");
            stringBuilder.AppendLine($"RECTANGLE       : {rectangleMousePoint       }");

            this.messageLabel.Content = stringBuilder.ToString();
        }

        #endregion
    }
}

using System.Text;

using System.Windows;

using System.Windows.Input;

namespace TestProject

{

/// <summary>

/// 메인 윈도우

/// </summary>

public partial class MainWindow : Window

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainWindow()

/// <summary>

/// 생성자

/// </summary>

public MainWindow()

{

InitializeComponent();

MouseDown += Window_MouseDown;

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

#region 윈도우 마우스 DOWN 처리하기 - Window_MouseDown(sender, e)

/// <summary>

/// 윈도우 마우스 DOWN 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private void Window_MouseDown(object sender, MouseButtonEventArgs e)

{

Point windowMousePoint = e.GetPosition(null ); // null 대신 this도 가능하다.

Point gridMousePoint = e.GetPosition(this.grid );

Point canvasMousePoint = e.GetPosition(this.canvas );

Point rectangleMousePoint = e.GetPosition(this.rectangle);

StringBuilder stringBuilder = new StringBuilder();

stringBuilder.AppendLine($"SENDER : {sender.GetType() }");

stringBuilder.AppendLine($"ORIGINAL SOURCE : {e.OriginalSource.GetType()}");

stringBuilder.AppendLine($"WINDOW : {windowMousePoint }");

stringBuilder.AppendLine($"GRID : {gridMousePoint }");

stringBuilder.AppendLine($"CANVAS : {canvasMousePoint }");

stringBuilder.AppendLine($"RECTANGLE : {rectangleMousePoint }");

this.messageLabel.Content = stringBuilder.ToString();

}

#endregion

}

TestProject.zip