在 Windows 下，有个函数叫 ExitWindowsEx ，可以用来控制系统的锁定、登出、重启和关机。主要就是通过给该函数传入不同的值来执行不同的操作。掌握该函数的使用就能更好的控制你的计算机。
ExitWindowsEx函数原型
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BOOL WINAPI ExitWindowsEx( _In_ UINT uFlags, _In_ DWORD dwReason ); |
传入值和对于功能
EWX_HYBRID_SHUTDOWN（0x00400000）
从 Windows8 开始的混合关机模式。
Beginning with Windows 8: You can prepare the system for a faster startup by combining the EWX_HYBRID_SHUTDOWN flag with the EWX_SHUTDOWN flag.
EWX_LOGOFF（0）
关闭所有进程并注销。
Shuts down all processes running in the logon session of the process that called the ExitWindowsEx function. Then it logs the user off.
EWX_POWEROFF（0x00000008）
关闭系统并切断电源，系统支持电源关闭功能。
Shuts down the system and turns off the power. The system must support the power-off feature.
EWX_REBOOT（0x00000002）
关闭系统并重启。
Shuts down the system and then restarts the system.
EWX_RESTARTAPPS（0x00000040）
关闭系统并重启，被注册到重启项的应用将一起重启。
Shuts down the system and then restarts it, as well as any applications that have been registered for restart using the RegisterApplicationRestart function.
EWX_SHUTDOWN（0x00000001）
关闭系统并在安全状态下关闭电源。
Shuts down the system to a point at which it is safe to turn off the power. All file buffers have been flushed to disk, and all running processes have stopped.
示例1：关机
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/* * 事件：关机 * Event: Shutdown */ bool shutdown(){ HANDLE hToken; TOKEN_PRIVILEGES tkp; if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) return( FALSE ); LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid); tkp.PrivilegeCount = 1; tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0); if (GetLastError() != ERROR_SUCCESS) return FALSE; if (!ExitWindowsEx(EWX_SHUTDOWN | EWX_POWEROFF, SHTDN_REASON_MAJOR_OPERATINGSYSTEM | SHTDN_REASON_MINOR_UPGRADE | SHTDN_REASON_FLAG_PLANNED)) return FALSE; return TRUE; } |
示例2：强制关机
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/* * 事件：强制关机 * Event: Shutdown Force */ bool shutdownforce(){ HANDLE hToken; TOKEN_PRIVILEGES tkp; if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken)) return( FALSE ); LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME, &tkp.Privileges[0].Luid); tkp.PrivilegeCount = 1; tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0); if (GetLastError() != ERROR_SUCCESS) return FALSE; if (!ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, SHTDN_REASON_MAJOR_OPERATINGSYSTEM | SHTDN_REASON_MINOR_UPGRADE | SHTDN_REASON_FLAG_PLANNED)) return FALSE; return TRUE; } |
本文链接地址: Windows 下用 API 控制系统的锁定/注销/重启/关机
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