■ 윈도우즈 화면 잠금 여부와 화면 보호기 실행 여부를 구하는 방법을 보여준다.
▶ WIN32Helper.cs
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using System; using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WIN32 헬퍼 /// </summary> public static class WIN32Helper { //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 시스템 매개 변수 정보 처리하기 - SystemParametersInfo(action, parameter1, parameter2, flag) /// <summary> /// 시스템 매개 변수 정보 처리하기 /// </summary> /// <param name="action">액션</param> /// <param name="parameter1">매개 변수 1</param> /// <param name="parameter2">매개 변수 2</param> /// <param name="flag">플래그</param> /// <returns>처리 결과</returns> [DllImport("user32.dll", CharSet = CharSet.Auto)] [return: MarshalAs(UnmanagedType.Bool)] private static extern bool SystemParametersInfo(uint action, uint parameter1, ref bool parameter2, int flag); #endregion #region 데스크톱 열기 - OpenDesktop(desktopName, flag, inherit, desiredAccess) /// <summary> /// 데스크톱 열기 /// </summary> /// <param name="desktopName">데스크톱명</param> /// <param name="flag">플래그</param> /// <param name="inherit">상속 여부</param> /// <param name="desiredAccess">희망 액세스</param> /// <returns>데스크톱 핸들</returns> [DllImport("user32", SetLastError = true)] private static extern IntPtr OpenDesktop(string desktopName, uint flag, bool inherit, uint desiredAccess); #endregion #region 사용자 입력받는 데스크톱 열기 - OpenInputDesktop(flag, inherit, desiredAccess) /// <summary> /// 사용자 입력받는 데스크톱 열기 /// </summary> /// <param name="flag">플래그</param> /// <param name="inherit">상속 여부</param> /// <param name="desiredAccess">희망 액세스</param> /// <returns>데스크톱 핸들</returns> [DllImport("user32", SetLastError = true)] private static extern IntPtr OpenInputDesktop(uint flag, bool inherit, uint desiredAccess); #endregion #region 데스크톱 닫기 - CloseDesktop(desktopHandle) /// <summary> /// 데스크톱 닫기 /// </summary> /// <param name="desktopHandle">데스크톱 핸들</param> /// <returns>처리 결과</returns> [DllImport("user32", SetLastError = true)] private static extern IntPtr CloseDesktop(IntPtr desktopHandle); #endregion #region 데스크톱 전환하기 - SwitchDesktop(desktopHandle) /// <summary> /// 데스크톱 전환하기 /// </summary> /// <param name="desktopHandle">데스크톱 핸들</param> /// <returns>처리 결과</returns> [DllImport("user32", SetLastError = true)] [return: MarshalAs(UnmanagedType.Bool)] private static extern bool SwitchDesktop(IntPtr desktopHandle); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// DESKTOP_SWITCHDESKTOP /// </summary> private const int DESKTOP_SWITCHDESKTOP = 256; /// <summary> /// SPI_GETSCREENSAVERRUNNING /// </summary> private const int SPI_GETSCREENSAVERRUNNING = 114; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 화면 잠금 여부 구하기 - IsScreenLocked() /// <summary> /// 화면 잠금 여부 구하기 /// </summary> /// <returns>화면 잠금 여부</returns> public static bool IsScreenLocked() { IntPtr desktopHandle = OpenInputDesktop(0, false, DESKTOP_SWITCHDESKTOP); if(desktopHandle == IntPtr.Zero) { desktopHandle = OpenDesktop("Default", 0, false, DESKTOP_SWITCHDESKTOP); } if(desktopHandle != IntPtr.Zero) { if(SwitchDesktop(desktopHandle)) { CloseDesktop(desktopHandle); } else { CloseDesktop(desktopHandle); return true; } } return false; } #endregion #region 화면 보호기 실행 여부 구하기 - IsScreenSaverRunning() /// <summary> /// 화면 보호기 실행 여부 구하기 /// </summary> /// <returns>화면 보호기 실행 여부</returns> public static bool IsScreenSaverRunning() { bool isRunning = false; if(!SystemParametersInfo(SPI_GETSCREENSAVERRUNNING, 0, ref isRunning, 0)) { return false; } if(isRunning) { return true; } return false; } #endregion } } |
▶ Program.cs
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using System; using System.Threading; namespace TestProject { /// <summary> /// 프로그램 /// </summary> class Program { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 프로그램 시작하기 - Main() /// <summary> /// 프로그램 시작하기 /// </summary> private static void Main() { Console.Title = "윈도우즈 화면 잠금 여부 구하기/화면 보호기 실행 여부 구하기"; while(true) { Console.WriteLine(); Console.WriteLine($"SCREEN LOCKED : {WIN32Helper.IsScreenLocked() }"); Console.WriteLine($"SCREEN SAVER RUNNING : {WIN32Helper.IsScreenSaverRunning()}"); Thread.Sleep(1000); } } #endregion } } |
