■ SendMessage API를 사용해 컨트롤을 클릭하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Runtime.InteropServices; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 메시지 보내기 - SendMessage(windowHandle, message, longParameter, wordParameter) /// <summary> /// 메시지 보내기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="message">메시지</param> /// <param name="longParameter">LONG 매개 변수</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <returns>처리 결과</returns> [DllImport("User32.dll", CharSet=CharSet.Auto)] private extern static IntPtr SendMessage(IntPtr windowHandle, int message, IntPtr longParameter, IntPtr wordParameter); #endregion #region 메시지 보내기 - SendMessage(windowHandle, message, longParameter, wordParameter) /// <summary> /// 메시지 보내기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <param name="message">메시지</param> /// <param name="longParameter">LONG 매개 변수</param> /// <param name="wordParameter">WORD 매개 변수</param> /// <returns>처리 결과</returns> [DllImport("User32.dll", CharSet=CharSet.Auto)] private extern static IntPtr SendMessage(IntPtr windowHandle, int message, int longParameter, int wordParameter); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// WM_LBUTTONDOWN /// </summary> private const int WM_LBUTTONDOWN = 513; /// <summary> /// WM_LBUTTONUP /// </summary> private const int WM_LBUTTONUP = 514; /// <summary> /// MK_LBUTTON /// </summary> private const int MK_LBUTTON = 0x0001; /// <summary> /// MK_RBUTTON /// </summary> private const int MK_RBUTTON = 0x0002; /// <summary> /// MK_SHIFT /// </summary> private const int MK_SHIFT = 0x0004; /// <summary> /// MK_CONTROL /// </summary> private const int MK_CONTROL = 0x0008; /// <summary> /// MK_MBUTTON /// </summary> private const int MK_MBUTTON = 0x0010; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.showMessageButton.Click += showMessageButton_Click; this.clickButtonButton.Click += clickButtonButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 메시지 표시하기 버튼 클릭시 처리하기 - showMessageButton_Click(sender, e) /// <summary> /// 메시지 표시하기 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void showMessageButton_Click(object sender, EventArgs e) { MessageBox.Show("메시지를 표시합니다."); } #endregion #region 버튼 클릭하기 버튼 클릭시 처리하기 - clickButtonButton_Click(sender, e) /// <summary> /// 버튼 클릭하기 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void clickButtonButton_Click(object sender, EventArgs e) { ClickControl(this.showMessageButton); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region LONG 매개 변수 구하기 - GetLongParameter(low, high) /// <summary> /// LONG 매개 변수 구하기 /// </summary> /// <param name="low">하위 워드</param> /// <param name="high">상위 워드</param> /// <returns>LONG 매개 변수</returns> private int GetLongParameter(int low, int high) { return ((high << 16) | (low & 0xffff)); } #endregion #region 컨트롤 클릭하기 - ClickControl(control) /// <summary> /// 컨트롤 클릭하기 /// </summary> /// <param name="control">컨트롤</param> private void ClickControl(Control control) { int x = 0; int y = 0; int longParameter = GetLongParameter(x, y); SendMessage(control.Handle, WM_LBUTTONDOWN, longParameter, MK_LBUTTON); SendMessage(control.Handle, WM_LBUTTONUP , longParameter, MK_LBUTTON); } #endregion } } |
