■ UIElement 클래스를 사용해 키 이벤트를 추적하는 방법을 보여준다.
▶ MainWindow.xaml
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<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="UIElement 클래스 : 키 이벤트 추적하기" FontFamily="나눔고딕코딩" FontSize="16"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto" /> <RowDefinition Height="*" /> </Grid.RowDefinitions> <TextBlock Name="headerTextBlock" Grid.Row="0" FontWeight="Bold" /> <ScrollViewer Name="scrollViewer" Grid.Row="1"> <StackPanel Name="outputStackPanel" /> </ScrollViewer> </Grid> </Window> |
▶ MainWindow.xaml.cs
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using System.Windows; using System.Windows.Controls; using System.Windows.Input; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 헤더 /// </summary> private string header = "Event Key Sys-Key Text Ctrl-Text Sys-Text Ime KeyStates" + " IsDown IsUp IsToggled IsRepeat"; /// <summary> /// 키 포맷 문자열 /// </summary> private string keyFormatString = "{0,-10} {1,-10} {2,-10} " + "{3,-10} {4,-15} {5,-10} {6,-10} {7,-10} {8,-10}"; /// <summary> /// 텍스트 포맷 문자열 /// </summary> private string textFormatString = "{0,-10} {1,-10} {2,-10} {3,-10}"; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); this.headerTextBlock.Text = header; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 키 DOWN 처리하기 - OnKeyDown(e) /// <summary> /// 키 DOWN 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnKeyDown(KeyEventArgs e) { base.OnKeyDown(e); string message = string.Format ( this.keyFormatString, e.RoutedEvent.Name , e.Key , e.SystemKey , e.ImeProcessedKey , e.KeyStates , e.IsDown , e.IsUp , e.IsToggled , e.IsRepeat ); DisplayInformation(message); } #endregion #region 키 UP 처리하기 - OnKeyUp(e) /// <summary> /// 키 UP 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnKeyUp(KeyEventArgs e) { base.OnKeyUp(e); string message = string.Format ( this.keyFormatString, e.RoutedEvent.Name , e.Key , e.SystemKey , e.ImeProcessedKey , e.KeyStates , e.IsDown , e.IsUp , e.IsToggled , e.IsRepeat ); DisplayInformation(message); } #endregion #region 텍스트 입력시 처리하기 - OnTextInput(e) /// <summary> /// 텍스트 입력시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnTextInput(TextCompositionEventArgs e) { base.OnTextInput(e); string message = string.Format ( this.textFormatString, e.RoutedEvent.Name , e.Text , e.ControlText , e.SystemText ); DisplayInformation(message); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 정보 표시하기 - DisplayInformation(message) /// <summary> /// 정보 표시하기 /// </summary> /// <param name="message">메시지</param> private void DisplayInformation(string message) { TextBlock textBlock = new TextBlock(); textBlock.Text = message; this.outputStackPanel.Children.Add(textBlock); this.scrollViewer.ScrollToBottom(); } #endregion } } |
