windows主机控制

一、开关机控制

using System.Runtime.InteropServices;

//注销、关机、重启
    class shutdown
    {
        [StructLayout(LayoutKind.Sequential, Pack = 1)]
        internal struct TokPriv1Luid
        {
            public int Count;
            public long Luid;
            public int Attr;
        }

        [DllImport("kernel32.dll", ExactSpelling = true)]
        internal static extern IntPtr GetCurrentProcess();

        [DllImport("advapi32.dll", ExactSpelling = true, SetLastError = true)]
        internal static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);

        [DllImport("advapi32.dll", SetLastError = true)]
        internal static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);

        [DllImport("advapi32.dll", ExactSpelling = true, SetLastError = true)]
        internal static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall,
        ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);

        [DllImport("user32.dll", ExactSpelling = true, SetLastError = true)]
        internal static extern bool ExitWindowsEx(int DoFlag, int rea);

       

        internal const int SE_PRIVILEGE_ENABLED = 0x00000002;
        internal const int TOKEN_QUERY = 0x00000008;
        internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;
        internal const string SE_SHUTDOWN_NAME = "SeShutdownPrivilege";
        internal const int EWX_LOGOFF = 0x00000000;
        internal const int EWX_SHUTDOWN = 0x00000001;
        internal const int EWX_REBOOT = 0x00000002;
        internal const int EWX_FORCE = 0x00000004;
        internal const int EWX_POWEROFF = 0x00000008;
        internal const int EWX_FORCEIFHUNG = 0x00000010;


        
        private static void DoExitWin(int DoFlag)
        {
            bool ok;
            TokPriv1Luid tp;
            IntPtr hproc = GetCurrentProcess();
            IntPtr htok = IntPtr.Zero;
            ok = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);
            tp.Count = 1;
            tp.Luid = 0;
            tp.Attr = SE_PRIVILEGE_ENABLED;
            ok = LookupPrivilegeValue(null, SE_SHUTDOWN_NAME, ref tp.Luid);
            ok = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);
            ok = ExitWindowsEx(DoFlag, 0);
        }

        public void Reboot()//重启
        {
            DoExitWin(EWX_FORCE | EWX_REBOOT);
        }

        public void PowerOff()//关机
        {
            DoExitWin(EWX_FORCE | EWX_POWEROFF);
        }

        public void LogOff()//注销
        {
            DoExitWin(EWX_FORCE | EWX_LOGOFF);
        }

    }

二、音量控制

1.user32

[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, uint wParam, uint lParam);

        const uint WM_APPCOMMAND = 0x319;
        const uint APPCOMMAND_VOLUME_UP = 0x0a;
        const uint APPCOMMAND_VOLUME_DOWN = 0x09;
        const uint APPCOMMAND_VOLUME_MUTE = 0x08;

 public void volumeUp() {//音量加

            SendMessage(this.Handle, WM_APPCOMMAND, 0x30292, APPCOMMAND_VOLUME_UP * 0x10000);
        }
        public void volumeDown()
        {//音量减

            SendMessage(this.Handle, WM_APPCOMMAND, 0x30292, APPCOMMAND_VOLUME_DOWN * 0x10000);
        }
        public void volumeMuet()
        {//静音或取消

            SendMessage(this.Handle, WM_APPCOMMAND, 0x200eb0, APPCOMMAND_VOLUME_MUTE * 0x10000);
        }

2.CoreAudioApi

using CoreAudioApi;
using System.Runtime.InteropServices;

namespace LHProgectClient
{
    class volumeControl
    {
        //实例化CoreAudioApi里的类
        MMDeviceEnumerator devEnum = new MMDeviceEnumerator();
        MMDevice defaultDevice = null;


        //初始化
        public volumeControl()
        {
            defaultDevice = devEnum.GetDefaultAudioEndpoint(EDataFlow.eRender, ERole.eMultimedia);
        }

        //是否静音
        public bool MUTE
        {
            get { return defaultDevice.AudioEndpointVolume.Mute; }
            set { defaultDevice.AudioEndpointVolume.Mute = value; }
        }


        //音量加
        public void volumeUp()
        {
            defaultDevice.AudioEndpointVolume.VolumeStepUp();
        }
        //音量减
        public void volumeDown()
        {
            defaultDevice.AudioEndpointVolume.VolumeStepDown();
        }
        //静音、取消
        public void volumeMute()
        {
            defaultDevice.AudioEndpointVolume.Mute = !defaultDevice.AudioEndpointVolume.Mute;
        }
    }
}