c++远程关闭计算机例子

【核心代码】

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "uMain.h"
#include "uAbout.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TfrmMain *frmMain;
String g_strAppTitle = "WinNT/2k/XP远程关机 ";
//---------------------------------------------------------------------------
__fastcall TfrmMain::TfrmMain(TComponent* Owner)
    : TForm(Owner)
{
    SetWindowLong(edtTimeOut->Handle, GWL_STYLE,
            GetWindowLong(edtTimeOut->Handle, GWL_STYLE) | ES_NUMBER);
    Caption = g_strAppTitle;
    Application->Title = g_strAppTitle;
}
//---------------------------------------------------------------------------
int __fastcall ShutDownRemoteMachine(LPSTR lpMachineName,
        LPSTR lpUsr, LPSTR lpPwd, LPSTR lpMsg, DWORD dwTimeOut)
{
    HANDLE hToken;
    int nRet = -1;
    TOKEN_PRIVILEGES tp, tpNew;

    NETRESOURCE nr;
    ZeroMemory(&nr, sizeof(nr));
    nr.dwType = RESOURCETYPE_ANY;
    nr.lpLocalName = "";
    nr.lpProvider = "";
    nr.lpRemoteName = lpMachineName;
    DWORD dwResult = WNetAddConnection2(&nr, lpPwd, lpUsr, 0);

    if(dwResult == 0)
    {
        if(OpenProcessToken(GetCurrentProcess(),
                TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
        {
            tp.PrivilegeCount = 1;
            if(!(LookupPrivilegeValue(lpMachineName,
                    "SeRemoteShutdownPrivilege", &tp.Privileges[0].Luid)))
            {
                nRet = -2; // 查找远程关机权限失败
            }
            else
            {
                tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
                DWORD dwRetLen;
                if(!(AdjustTokenPrivileges(
                        hToken, false, &tp, sizeof(tp), &tpNew, &dwRetLen)))
                {
                    nRet = -3; // 调整远程关机权限失败
                }
                else
                {
                    if(InitiateSystemShutdown(
                            lpMachineName, lpMsg, dwTimeOut, TRUE, FALSE))
                        nRet = 0;
                    else
                        nRet = -4; // 远程关机执行失败
                }
            }
            CloseHandle(hToken);
        }
    }
    else
        nRet = GetLastError(); // 连接到远程主机失败
    return nRet;
}
//---------------------------------------------------------------------------
void __fastcall TfrmMain::btnShutDownClick(TObject *Sender)
{
    if(edtMachine->Text == "" || edtUsr->Text == "")
    {
        MessageBox(Handle, "必须输入机器名和用户名!",
                g_strAppTitle.c_str(), MB_OK | MB_ICONWARNING);
        return;
    }
    String strMachine = edtMachine->Text;
    if(edtMachine->Text[1] != '\\')
        strMachine = "\\\\"   strMachine;
    DWORD dwTimeOut;
    try
    {
        dwTimeOut = edtTimeOut->Text.ToInt();
    }
    catch(...)
    {
        dwTimeOut = 0;
    }
    int nRet = ShutDownRemoteMachine(
            strMachine.c_str(), edtUsr->Text.c_str(), edtPwd->Text.c_str(),
            mmoMsg->Text.c_str(), dwTimeOut);
    String strMsg;
    UINT unIcon = MB_ICONWARNING;
    switch(nRet)
    {
        case 0:
            strMsg = String("对远程主机 ")   strMachine   " 关机执行成功!";
            unIcon = MB_ICONINFORMATION;
            break;
        case -2:
            strMsg = String("查找远程主机 ")   strMachine   " 关机权限失败!"; break;
        case -3:
            strMsg = String("调整远程主机 ")   strMachine   " 关机权限失败!"; break;
        case -4:
            strMsg = String("对远程主机 ")   strMachine   " 执行关机失败!"; break;
        default:
            strMsg = String("连接到 "   strMachine   " 失败,原因可能是:\r\n")
                      SysErrorMessage(nRet); break;
    }
    MessageBox(Handle, strMsg.c_str(), g_strAppTitle.c_str(), MB_OK | unIcon);
}
//---------------------------------------------------------------------------
void __fastcall TfrmMain::btnAbortClick(TObject *Sender)
{
    String strMachine = edtMachine->Text;
    if(edtMachine->Text[1] != '\\')
        strMachine = "\\\\"   strMachine;
    if(AbortSystemShutdown(strMachine.c_str()))
        MessageBox(Handle, String("成功中止对以下机器的远程关机任务:\r\n"
                  strMachine).c_str(), g_strAppTitle.c_str(),
                MB_OK | MB_ICONINFORMATION);
    else
        MessageBox(Handle, String("对以下机器远程关机任务的中止执行失败:\r\n"
                  strMachine).c_str(), g_strAppTitle.c_str(),
                MB_OK | MB_ICONWARNING);
}
//---------------------------------------------------------------------------
void __fastcall TfrmMain::btnAboutClick(TObject *Sender)
{
    frmAbout = new TfrmAbout(this);
    frmAbout->ShowModal();
    delete frmAbout; 
}
//---------------------------------------------------------------------------