进程篇----获取线程ID（By ProcessName） CreateToolhelp32Snapshot

通过ToolHelper中的API函数 CreateToolhelp32Snapshot来获取目标进程中的线程ID。

 

	BOOL GetThreadIdentify(HANDLE ProcessIdentify, vector<HANDLE>& ThreadIdentify)
	{

		BOOL IsOk = FALSE;
		HANDLE SnapshotHandle = INVALID_HANDLE_VALUE;
		THREADENTRY32	ThreadEntry32 = { 0 };
		ThreadEntry32.dwSize = sizeof(THREADENTRY32);
		int LastError = 0;

		if (IsBadReadPtr(&ProcessIdentify, sizeof(HANDLE)))
		{

			LastError = ERROR_INVALID_PARAMETER;
			goto Exit;
		}

		SnapshotHandle = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
		if (SnapshotHandle == INVALID_HANDLE_VALUE)
		{
			LastError = GetLastError();
			goto Exit;
		}
		if (!Thread32First(SnapshotHandle, &ThreadEntry32))
		{

			LastError = GetLastError();
			goto Exit;
		}

		do
		{
			if (ThreadEntry32.th32OwnerProcessID == (DWORD)ProcessIdentify)
			{

				ThreadIdentify.emplace_back((HANDLE)ThreadEntry32.th32ThreadID);
				IsOk = TRUE;
			}

		} while (Thread32Next(SnapshotHandle, &ThreadEntry32));


	Exit:

		if (SnapshotHandle != INVALID_HANDLE_VALUE)
		{
			CloseHandle(SnapshotHandle);
		}
		SnapshotHandle = INVALID_HANDLE_VALUE;
		SetLastError(LastError);
		return IsOk;
	}