程序中主要使用了InitiateSystemShutdown()这个函数。

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CString CPage1::ShowError()

{

LPVOID lpMsgBuf;

::FormatMessage(

FORMAT_MESSAGE_ALLOCATE_BUFFER |

FORMAT_MESSAGE_FROM_SYSTEM |

FORMAT_MESSAGE_IGNORE_INSERTS,

NULL,

::GetLastError(),

MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language

(LPTSTR) &lpMsgBuf,

0,

NULL

);

CString strMsg((LPCTSTR)lpMsgBuf);

::LocalFree( lpMsgBuf );

return strMsg;

}

关机：

void CPage1::OnShutdown()

{

GetDlgItem(IDC_STATE)->SetWindowText(“正在试图关闭计算机，请稍候…”);

static HANDLE hToken;

static TOKEN_PRIVILEGES tp;

static LUID luid;

if(::OpenProcessToken(GetCurrentProcess(),

TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,

&hToken))

{

::LookupPrivilegeValue(NULL,SE_SHUTDOWN_NAME,&luid);

tp.PrivilegeCount=1;

tp.Privileges[0].Luid =luid;

tp.Privileges[0].Attributes =SE_PRIVILEGE_ENABLED;

::AdjustTokenPrivileges(hToken,false,&tp,sizeof(TOKEN_PRIVILEGES),NULL,NULL);

}

UpdateData(true);

CString str;

str.Format(“\\\\%s”,m_strName);

if(!::InitiateSystemShutdown(

(LPTSTR)(LPCTSTR)str,

“\n不好意思，我要关机了!”,

m_nTime,

m_bAlert==0?true:false,

m_nType==0?false:true

))

{

GetDlgItem(IDC_STATE)->SetWindowText(this->ShowError());

}

else

GetDlgItem(IDC_STATE)->SetWindowText(“关机成功”);

}

取消关机：

void CPage1::OnAbort()

{

GetDlgItem(IDC_STATE)->SetWindowText(“正在试图取消关机操作，请稍候…”);

UpdateData(true);

CString str;

str.Format(“\\\\%s”,m_strName);

if(!::AbortSystemShutdown((LPTSTR)(LPCTSTR)str))

{

GetDlgItem(IDC_STATE)->SetWindowText(this->ShowError());

}

else

GetDlgItem(IDC_STATE)->SetWindowText(“取消成功”);

}

休眠：

void CPage1::OnXiu()

{

if(MessageBox(“确实要休眠吗?”,”关机程序”,MB_YESNO|MB_DEFBUTTON2|MB_ICONQUESTION)==IDYES)

{

static HANDLE hToken;

static TOKEN_PRIVILEGES tp;

static LUID luid;

if(::OpenProcessToken(GetCurrentProcess(),

TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY,

&hToken))

{

::LookupPrivilegeValue(NULL,SE_SHUTDOWN_NAME,&luid);

tp.PrivilegeCount=1;

tp.Privileges[0].Luid =luid;

tp.Privileges[0].Attributes =SE_PRIVILEGE_ENABLED;

::AdjustTokenPrivileges(hToken,false,&tp,sizeof(TOKEN_PRIVILEGES),NULL,NULL);

}

::SetSystemPowerState(false,true);

}

}