c++ 提升应用程序的权限

判断当前用户权限是否管理员权限

BOOL IsRunAsAdmin()
{
 BOOL fIsRunAsAdmin = FALSE;
 DWORD dwError = ERROR_SUCCESS;
 PSID pAdministratorsGroup = NULL;

 // Allocate and initialize a SID of the administrators group.
 SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;
 if (!AllocateAndInitializeSid(
  &NtAuthority,
  2,
  SECURITY_BUILTIN_DOMAIN_RID,
  DOMAIN_ALIAS_RID_ADMINS,
  0, 0, 0, 0, 0, 0,
  &pAdministratorsGroup))
 {
  dwError = GetLastError();
  goto Cleanup;
 }

 // Determine whether the SID of administrators group is enabled in
 // the primary access token of the process.
 if (!CheckTokenMembership(NULL, pAdministratorsGroup, &fIsRunAsAdmin)){
  dwError = GetLastError();
  goto Cleanup;
 }

Cleanup:
 // Centralized cleanup for all allocated resources.
 if (pAdministratorsGroup){ 
  FreeSid(pAdministratorsGroup);
  pAdministratorsGroup = NULL;
 }

 // Throw the error if something failed in the function.
 if (ERROR_SUCCESS != dwError){ 
  throw dwError;
 }

 return fIsRunAsAdmin;
}

如果当前用户权限非管理员，提升当前用户权限

BOOL ElevateCurrentProcess(CString sCmdLine)
{
 USES_CONVERSION;
 TCHAR szPath[MAX_PATH] = {0};
 if (::GetModuleFileName(NULL, szPath, MAX_PATH)){
  // Launch itself as administrator.
  SHELLEXECUTEINFO sei = { sizeof(SHELLEXECUTEINFO) };
  sei.lpVerb = _T(“runas”);
  sei.lpFile = szPath;
  sei.lpParameters = (LPCTSTR)sCmdLine;
  // sei.hwnd = hWnd;
  sei.nShow = SW_SHOWNORMAL;

  if (!ShellExecuteEx(&sei)){
   DWORD dwStatus = GetLastError();
   if (dwStatus == ERROR_CANCELLED) {
    return FALSE;
   }else if (dwStatus == ERROR_FILE_NOT_FOUND) {
    return FALSE;
   }
   return FALSE;
  } 
  return TRUE;
 }
 return FALSE;
}