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VC++对话框禁止关闭按钮和禁止任务管理中关闭进程

2011-03-24 07:48:44| 分类：技术探讨 | 标签： |举报 |字号大中小订阅

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1.BOOL C***Dlg::OnInitDialog()

{

//禁止关闭对话框
CMenu* pMenu = this->GetSystemMenu(FALSE);
pMenu->ModifyMenu(SC_CLOSE,MF_BYCOMMAND | MF_GRAYED );
//禁止在任务管理器中关闭进程
SetTimer(1,m_nTimer,NULL);//设置1号定时器，循环调用stopKillProcess()函数，禁止任务管理器中关闭进程

}

2.void CClientTracerDlg::stopKillProcess()//禁止任务管理器中关闭进程
{
HWND hwnd;
int iItem=0;
LVITEM lvitem, *plvitem;
char ItemBuf[512],*pItem;
DWORD PID;
HANDLE hProcess;

// 查找任务管理器ListView窗口句柄
hwnd=::FindWindow("#32770",_T("Windows 任务管理器"));
hwnd=::FindWindowEx(hwnd,0,"#32770",0);
hwnd=::FindWindowEx(hwnd,0,"SysListView32",0);

// Windows任务管理器尚未启动则返回
if (!hwnd)
return;
else
{
// 没有指定目标进程则返回
iItem=::SendMessage(hwnd,LVM_GETNEXTITEM,-1,LVNI_SELECTED);
if (iItem==-1)
   return;
else
{
   // 获取进程句柄操作失败则返回
   GetWindowThreadProcessId(hwnd, &PID);
   hProcess=OpenProcess(PROCESS_ALL_ACCESS,false,PID);
   if (!hProcess)
    return;
   else
   {
    plvitem=(LVITEM*)VirtualAllocEx(hProcess, NULL, sizeof(LVITEM), MEM_COMMIT, PAGE_READWRITE);
    pItem=(char*)VirtualAllocEx(hProcess, NULL, 512, MEM_COMMIT, PAGE_READWRITE);

    // 无法分配内存则返回
    if ((!plvitem)||(!pItem))
     return;
    else
    {
     lvitem.cchTextMax=512;
     lvitem.iSubItem=0; //ProcessName
     lvitem.pszText=pItem;
     WriteProcessMemory(hProcess, plvitem, &lvitem, sizeof(LVITEM), NULL);
     ::SendMessage(hwnd, LVM_GETITEMTEXT, (WPARAM)iItem, (LPARAM)plvitem);
     ReadProcessMemory(hProcess, pItem, ItemBuf, 512, NULL);

     // 比较字符串,匹配进程映像名
     CString str = (CString)ItemBuf;
     if(str.CompareNoCase(_T("ClientTracer.exe")) == 0)
     {
      HWND hWnd=::FindWindow(NULL,_T("Windows 任务管理器"));
      ::SendMessage(hWnd,WM_DESTROY,0,0);
      Sleep(100);
      ::MessageBox(NULL,_T("禁止关闭系统关键进程!"),_T("提示"),MB_ICONERROR | MB_OK);
     }
    }
   }
}
}

//释放内存
CloseHandle(hwnd);
CloseHandle(hProcess);
VirtualFreeEx(hProcess, plvitem, 0, MEM_RELEASE);
VirtualFreeEx(hProcess, pItem, 0, MEM_RELEASE);
}

3.定时器设置调用stopKillProcess()，也可以多线程调用stopKillProcess()

void C***Dlg::OnTimer(UINT nIDEvent)
{
// TODO: Add your message handler code here and/or call default
if(nIDEvent == 1)
{
stopKillProcess();
}
CDialog::OnTimer(nIDEvent);
}

本文来自CSDN博客http://blog.csdn.net/fjssharpsword/archive/2010/11/28/6040445.aspx

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