一、 实现原理：

  首先通过CreateToolhelp32Snapshot函数创建一个进程的快照，然后通过调用Process32First使用快照返回的句柄对进程进行遍历，相关的信息存放在PROCESSENTRY32结构类型的实例中，通过调用内部的一个函数GetProcessModule，获取对应的进程的模块名称，然后通过对进程地址空间信息的读取，从而获取相应的线程的ID等的信息。

  二、主要实现代码：

  获取进程地址空间内的相关信息：

  hProcess = OpenProcess (PROCESS_ALL_ACCESS,
  FALSE, pe32.th32ProcessID);

  pfGetProcessMemoryInfo(hProcess,pmc,sizeof(pmc));


  获取进程的模块信息：

  BOOL CEmuteFileDlg::GetProcessModule(DWORD dwPID, DWORD dwModuleID, LPMODULEENTRY32 lpMe32, DWORD cbMe32)
  {
  BOOL bRet = FALSE;
  BOOL bFound = FALSE;
  HANDLE hModuleSnap = NULL;
  MODULEENTRY32 me32 = {0};

  // Take a snapshot of all modules in the specified process.

  hModuleSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, dwPID);


  if (hModuleSnap == INVALID_HANDLE_VALUE)
  return (FALSE);
// Fill the size of the structure before using it.

  me32.dwSize = sizeof(MODULEENTRY32);

  // Walk the module list of the process, and find the module of
  // interest. Then copy the information to the buffer pointed
  // to by lpMe32 so that it can be returned to the caller.

  if (Module32First(hModuleSnap, &me32))
  {
  do
  {
  if (me32.th32ModuleID == dwModuleID)
  {
  CopyMemory (lpMe32, &me32, cbMe32);
  bFound = TRUE;
  }
  }
  while (!bFound && Module32Next(hModuleSnap, &me32));

  bRet = bFound; // if this sets bRet to FALSE, dwModuleID
  // no longer exists in specified process
  }
  else
  bRet = FALSE; // could not walk module list

  // Do not forget to clean up the snapshot object.

  CloseHandle (hModuleSnap);

  return (bRet);
  }

  三、提高权限：

  BOOL EnableDebugPrivilege()
{
  HANDLE hToken;
  BOOL fOk=FALSE;
  if(OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES,&hToken))
  {
  TOKEN_PRIVILEGES tp;
  tp.PrivilegeCount=1;
  if(!LookupPrivilegeValue(NULL,SE_DEBUG_NAME,&tp.Privileges[0].Luid))
  printf("Can't lookup privilege value.\n");
  tp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED;
  if(!AdjustTokenPrivileges(hToken,FALSE,&tp,sizeof(tp),NULL,NULL))
  printf("Can't adjust privilege value.\n");
  fOk=(GetLastError()==ERROR_SUCCESS);
  CloseHandle(hToken);
  }