C# - Win32 API를 이용한 모니터 전원 끄기

재미있는 글이 떴군요. ^^

Turn off monitors when locking the computer
; https://www.meziantou.net/turn-off-monitors-when-locking-the-computer.htm
; https://forum.dotnetdev.kr/t/topic/8212#grald-barr-10

Safely remove a USB drive using the Win32 API?
; https://stackoverflow.com/questions/85649/safely-remove-a-usb-drive-using-the-win32-api

안전하게 eject시킨 USB 장치를 물리적인 재연결 없이 다시 인식시키는 방법
; https://www.sysnet.pe.kr/2/0/12047

Passing through devices to Hyper-V VMs by using discrete device assignment
; https://devblogs.microsoft.com/scripting/passing-through-devices-to-hyper-v-vms-by-using-discrete-device-assignment/

using System.Runtime.InteropServices;

namespace ConsoleApp1;

internal class Program
{
    const int WM_SYSCOMMAND = 0x0112;
    const int SC_MONITORPOWER = 0xF170;
    const int MONITOR_OFF = 2;
    const int MONITOR_ON = -1;

    [DllImport("user32.dll")]
    public static extern int SendMessage(int hWnd, int hMsg, int wParam, int lParam);

    static void Main(string[] args)
    {
        SendMessage(-1, WM_SYSCOMMAND, SC_MONITORPOWER, MONITOR_OFF);
    }
}