獲得父進程的方法

可以通過下面這段代碼獲得當前進程的父進程。

 HANDLE hProcessSnap = NULL;
 PROCESSENTRY32 pe32 = {0};
 HANDLE hProcessParent = NULL;
 DWORD dwParentProcessID = 0;

 hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);

 if (hProcessSnap == INVALID_HANDLE_VALUE)
  return 1;

 pe32.dwSize = sizeof(pe32);

 if (!Process32First(hProcessSnap, &pe32))
 {
  CloseHandle(hProcessSnap);
  return 1;
 }

 do
 {
  if (pe32.th32ProcessID == GetCurrentProcessId())   //Is this current process?
   break;
 }while (Process32Next(hProcessSnap, &pe32));

 dwParentProcessID = pe32.th32ParentProcessID;

 CloseHandle(hProcessSnap);

 hProcessParent = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwParentProcessID);   //open the parent process