■ WPF는 응용 프로그램을 만들기 위한 풍부한 환경을 제공한다. 그러나 Win32 코드에 상당한 투자가 있는 경우 WPF 응용 프로그램에서 해당 코드 중 일부를 완전히 다시 작성하는 것보다 재사용하는 것이 더 효과적일 수 있다. WPF는 WPF 페이지에서 Win32 창을 호스팅하기 위한 간단한 메커니즘을 제공한다.
▶ ControlHost.cs
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using System; using System.Runtime.InteropServices; using System.Windows.Interop; namespace TestProject { /// <summary> /// 컨트롤 호스트 /// </summary> public class ControlHost : HwndHost { //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 윈도우 생성하기 (확장) - CreateWindowEx(extendedStyle, className, windowName, style, x, y, width, height, parentWindowHandle, menuHandle, instanceHandle, parameter) /// <summary> /// 윈도우 생성하기 (확장) /// </summary> /// <param name="extendedStyle">확장 스타일</param> /// <param name="className">클래스명</param> /// <param name="windowName">윈도우명</param> /// <param name="style">스타일</param> /// <param name="x">X</param> /// <param name="y">Y</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="parentWindowHandle">부모 윈도우 핸들</param> /// <param name="menuHandle">메뉴 핸들</param> /// <param name="instanceHandle">인스턴스 핸들</param> /// <param name="parameter">매개 변수</param> /// <returns>윈도우 핸들</returns> [DllImport("user32", EntryPoint = "CreateWindowEx", CharSet = CharSet.Unicode)] private static extern IntPtr CreateWindowEx ( int extendedStyle, string className, string windowName, int style, int x, int y, int width, int height, IntPtr parentWindowHandle, IntPtr menuHandle, IntPtr instanceHandle, [MarshalAs(UnmanagedType.AsAny)] object parameter ); #endregion #region 윈도우 제거하기 - DestroyWindow(windowHandle) /// <summary> /// 윈도우 제거하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <returns>처리 결과</returns> [DllImport("user32", EntryPoint = "DestroyWindow", CharSet = CharSet.Unicode)] private static extern bool DestroyWindow(IntPtr windowHandle); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// WS_CHILD /// </summary> private const int WS_CHILD = 0x40000000; /// <summary> /// WS_VISIBLE /// </summary> private const int WS_VISIBLE = 0x10000000; /// <summary> /// LBS_NOTIFY /// </summary> private const int LBS_NOTIFY = 0x00000001; /// <summary> /// HOST_ID /// </summary> private const int HOST_ID = 0x00000002; /// <summary> /// LISTBOX_ID /// </summary> private const int LISTBOX_ID = 0x00000001; /// <summary> /// WS_VSCROLL /// </summary> private const int WS_VSCROLL = 0x00200000; /// <summary> /// WS_BORDER /// </summary> private const int WS_BORDER = 0x00800000; /// <summary> /// 호스트 너비 /// </summary> private readonly int hostWidth; /// <summary> /// 호스트 높이 /// </summary> private readonly int hostHeight; /// <summary> /// 호스트 윈도우 핸들 /// </summary> private IntPtr hostWindowHandle; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 리스트 박스 윈도우 핸들 - ListBoxWindowHandle /// <summary> /// 리스트 박스 윈도우 핸들 /// </summary> public IntPtr ListBoxWindowHandle { get; private set; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - ControlHost(width, height) /// <summary> /// 생성자 /// </summary> /// <param name="width">너비</param> /// <param name="height">높이</param> public ControlHost(double width, double height) { this.hostWidth = (int)width; this.hostHeight = (int)height; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 윈도우 코어 만들기 - BuildWindowCore(parentHandleRef) /// <summary> /// 윈도우 코어 만들기 /// </summary> /// <param name="parentHandleRef">부모 핸들 참조</param> /// <returns>핸들 참조</returns> protected override HandleRef BuildWindowCore(HandleRef parentHandleRef) { ListBoxWindowHandle = IntPtr.Zero; this.hostWindowHandle = IntPtr.Zero; this.hostWindowHandle = CreateWindowEx ( 0, "static", "", WS_CHILD | WS_VISIBLE, 0, 0, this.hostWidth, this.hostHeight, parentHandleRef.Handle, (IntPtr)HOST_ID, IntPtr.Zero, 0 ); ListBoxWindowHandle = CreateWindowEx ( 0, "listbox", "", WS_CHILD | WS_VISIBLE | LBS_NOTIFY | WS_VSCROLL | WS_BORDER, 0, 0, this.hostWidth, this.hostHeight, this.hostWindowHandle, (IntPtr)LISTBOX_ID, IntPtr.Zero, 0 ); return new HandleRef(this, this.hostWindowHandle); } #endregion #region 윈도우 프로시저 처리하기 - WndProc(windowHandle, message, wordParameter, longParameter, handled) /// <summary> /// 윈도우 프로시저 처리하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="message">메시지</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <param name="longParameter">LONG 매개 변수</param> /// <param name="handled">처리 여부</param> /// <returns>핸들</returns> protected override IntPtr WndProc(IntPtr windowHandle, int message, IntPtr wordParameter, IntPtr longParameter, ref bool handled) { handled = false; return IntPtr.Zero; } #endregion #region 윈도우 코어 제거하기 - DestroyWindowCore(windowHandleRef) /// <summary> /// 윈도우 코어 제거하기 /// </summary> /// <param name="windowHandleRef">윈도우 핸들 참조</param> protected override void DestroyWindowCore(HandleRef windowHandleRef) { DestroyWindow(windowHandleRef.Handle); } #endregion } } |
▶ 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="TestProject" FontFamily="나눔고딕코딩" FontSize="16"> <DockPanel Margin="10" Background="LightGreen"> <Border Name="hostBorder" DockPanel.Dock="Right" HorizontalAlignment="Right" VerticalAlignment="Top" Margin="10" Width="200" Height="250" BorderThickness="3" BorderBrush="LightGray" /> <StackPanel> <Label HorizontalAlignment="Center" Margin="0 10 0 0" FontWeight="Bold"> Control the Control </Label> <TextBlock Margin="10 10 10 10"> Selected Text : <TextBlock Name="selectedTextBlock" /> </TextBlock> <TextBlock Margin="10 10 10 10"> Number of Items : <TextBlock Name="itemCountTextBlock" /> </TextBlock> <Line HorizontalAlignment="Center" Margin="0 20 0 0" X1="0" X2="500" StrokeThickness="2" Stroke="LightYellow" /> <Label HorizontalAlignment="Center" Margin="10 10 10 10"> Append an Item to the List </Label> <StackPanel Orientation="Horizontal"> <Label HorizontalAlignment="Left" Margin="10 10 10 10"> Item Text </Label> <TextBox Name="appendTextBox" HorizontalAlignment="Left" Margin="10 10 10 10" Width="200" VerticalContentAlignment="Center" /> </StackPanel> <Button Name="appendButton" HorizontalAlignment="Left" Margin="10 10 10 10" Width="100" Height="30"> Append </Button> <Line HorizontalAlignment="Center" Margin="0 20 0 0" X1="0" X2="500" StrokeThickness="2" Stroke="LightYellow" /> <Label HorizontalAlignment="Center" Margin="10 10 10 10"> Delete the Selected Item </Label> <Button Name="deleteButton" HorizontalAlignment="Left" Margin="10 10 10 10" Width="100" Height="30"> Delete </Button> </StackPanel> </DockPanel> </Window> |
▶ MainWindow.xaml.cs
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using System; using System.Runtime.InteropServices; using System.Text; using System.Windows; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 메시지 보내기 - SendMessage(windowHandle, message, wordParameter, longParameter) /// <summary> /// 메시지 보내기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="message">메시지</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <param name="longParameter">LONG 매개 변수</param> /// <returns>처리 결과</returns> [DllImport("user32", EntryPoint = "SendMessage", CharSet = CharSet.Unicode)] private static extern int SendMessage(IntPtr windowHandle, int message, IntPtr wordParameter, IntPtr longParameter); #endregion #region 메시지 보내기 - SendMessage(windowHandle, message, wordParameter, longParameter) /// <summary> /// 메시지 보내기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="message">메시지</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <param name="longParameter">LONG 매개 변수</param> /// <returns>처리 결과</returns> [DllImport("user32", EntryPoint = "SendMessage", CharSet = CharSet.Unicode)] private static extern int SendMessage(IntPtr windowHandle, int message, int wordParameter, [MarshalAs(UnmanagedType.LPWStr)] StringBuilder longParameter); #endregion #region 메시지 보내기 - SendMessage(windowHandle, message, wordParameter, longParameter) /// <summary> /// 메시지 보내기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="message">메시지</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <param name="longParameter">LONG 매개 변수</param> /// <returns>처리 결과</returns> [DllImport("user32", EntryPoint = "SendMessage", CharSet = CharSet.Unicode)] private static extern IntPtr SendMessage(IntPtr windowHandle, int message, IntPtr wordParameter, string longParameter); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// WM_COMMAND /// </summary> private const int WM_COMMAND = 0x00000111; /// <summary> /// LB_SEL_CHANGE /// </summary> private const int LB_SEL_CHANGE = 0x00000001; /// <summary> /// LB_GET_CUR_SEL /// </summary> private const int LB_GET_CUR_SEL = 0x00000188; /// <summary> /// LB_GET_TEXT_LEN /// </summary> private const int LB_GET_TEXT_LEN = 0x0000018A; /// <summary> /// LB_ADD_STRING /// </summary> private const int LB_ADD_STRING = 0x00000180; /// <summary> /// LB_GET_TEXT /// </summary> private const int LB_GET_TEXT = 0x00000189; /// <summary> /// LB_DELETE_STRING /// </summary> private const int LB_DELETE_STRING = 0x00000182; /// <summary> /// LB_GET_COUNT /// </summary> private const int LB_GET_COUNT = 0x0000018B; /// <summary> /// 리스트 박스 핸들 /// </summary> private IntPtr listBoxHandle; /// <summary> /// 항목 수 /// </summary> private int itemCount; /// <summary> /// 컨트롤 호스트 /// </summary> private ControlHost controlHost; /// <summary> /// 선택 항목 인덱스 /// </summary> private int selectedItemIndex; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); Loaded += Window_Loaded; this.appendButton.Click += appendButton_Click; this.deleteButton.Click += deleteButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 윈도우 로드시 처리하기 - Window_Loaded(sender, e) /// <summary> /// 윈도우 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Window_Loaded(object sender, EventArgs e) { this.controlHost = new ControlHost(this.hostBorder.ActualWidth, this.hostBorder.ActualHeight); this.hostBorder.Child = this.controlHost; this.controlHost.MessageHook += controlHost_MessageHook; this.listBoxHandle = this.controlHost.ListBoxWindowHandle; for(int i = 0; i < 15; i++) { string itemText = "Item" + i; SendMessage(this.listBoxHandle, LB_ADD_STRING, IntPtr.Zero, itemText); } this.itemCount = SendMessage(this.listBoxHandle, LB_GET_COUNT, IntPtr.Zero, IntPtr.Zero); this.itemCountTextBlock.Text = this.itemCount.ToString(); } #endregion #region 컨트롤 호스트 메시지 후킹 처리하기 - controlHost_MessageHook(windowHandle, message, wordParameter, longParameter, handled) /// <summary> /// 컨트롤 호스트 메시지 후킹 처리하기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="message">메시지</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <param name="longParameter">LONG 매개 변수</param> /// <param name="handled">처리 여부</param> /// <returns>핸들</returns> private IntPtr controlHost_MessageHook(IntPtr windowHandle, int message, IntPtr wordParameter, IntPtr longParameter, ref bool handled) { int textLength; handled = false; if(message == WM_COMMAND) { switch((uint) wordParameter.ToInt32() >> 16 & 0xffff) { case LB_SEL_CHANGE : this.selectedItemIndex = SendMessage(this.controlHost.ListBoxWindowHandle, LB_GET_CUR_SEL, IntPtr.Zero, IntPtr.Zero); textLength = SendMessage(this.controlHost.ListBoxWindowHandle, LB_GET_TEXT_LEN, IntPtr.Zero, IntPtr.Zero); StringBuilder stringBuilder = new StringBuilder(); SendMessage(this.listBoxHandle, LB_GET_TEXT, this.selectedItemIndex, stringBuilder); this.selectedTextBlock.Text = stringBuilder.ToString(); handled = true; break; } } return IntPtr.Zero; } #endregion #region Append 버튼 클릭시 처리하기 - appendButton_Click(sender, e) /// <summary> /// Append 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void appendButton_Click(object sender, EventArgs e) { if(this.appendTextBox.Text != string.Empty) { SendMessage(this.listBoxHandle, LB_ADD_STRING, IntPtr.Zero, this.appendTextBox.Text); } this.itemCount = SendMessage(this.listBoxHandle, LB_GET_COUNT, IntPtr.Zero, IntPtr.Zero); this.itemCountTextBlock.Text = this.itemCount.ToString(); } #endregion #region Delete 버튼 클릭시 처리하기 - deleteButton_Click(sender, e) /// <summary> /// Delete 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void deleteButton_Click(object sender, EventArgs e) { this.selectedItemIndex = SendMessage(this.controlHost.ListBoxWindowHandle, LB_GET_CUR_SEL, IntPtr.Zero, IntPtr.Zero); if(this.selectedItemIndex != -1) { SendMessage(this.listBoxHandle, LB_DELETE_STRING, (IntPtr) this.selectedItemIndex, IntPtr.Zero); } this.itemCount = SendMessage(this.listBoxHandle, LB_GET_COUNT, IntPtr.Zero, IntPtr.Zero); this.itemCountTextBlock.Text = this.itemCount.ToString(); } #endregion } } |
