Windows锁屏并关闭显示器

锁屏

相当于按下Win+L键。

LockWorkStation();

关闭屏幕

::SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM)2);

https://docs.microsoft.com/en-us/windows/win32/menurc/wm-syscommand

• -1 (the display is powering on)
• 1 (the display is going to low power)
• 2 (the display is being shut off)