【求助】关于DLL插入指定进程？？

  HWND hwnd=::FindWindow(NULL,"计算器");
  if(!hwnd)
  {
    AfxMessageBox("打开计算器吧，打开你就知道效果了");
    return;
  }
  
  DWORD lpprocessid=NULL;
  ::GetWindowThreadProcessId(hwnd,&lpprocessid);

  HANDLE handle1=::OpenProcess(PROCESS_ALL_ACCESS ,false,lpprocessid);

CString ms_DllName;
char* mc_RemoteStr;

ms_DllName="DllHook.Dll";

mc_RemoteStr=(char*)VirtualAllocEx(handle1,NULL,ms_DllName.GetLength()+1,MEM_COMMIT,PAGE_READWRITE);

WriteProcessMemory(handle1,mc_RemoteStr,ms_DllName.GetBuffer(0),ms_DllName.GetLength()+1,NULL);

/////插入DLL;
HANDLE hThread;
PTHREAD_START_ROUTINE pfn_LoadLib;

pfn_LoadLib=(PTHREAD_START_ROUTINE)GetProcAddress(GetModuleHandle(TEXT("Kernel32")),"LoadLibraryA");

hThread=CreateRemoteThread(handle1,NULL,0,pfn_LoadLib,mc_RemoteStr,0,NULL);

我在DLL中InitInstance中写的个AfxMessageBox("jklkjljkl");

但结果当然是失败了

我用以下代码是成功的
STARTUPINFO si;

    ZeroMemory( &si, sizeof(si) );
    si.cb = sizeof(si);

    PROCESS_INFORMATION pi;

    ZeroMemory( &pi, sizeof(pi) );

    if( !CreateProcess( "C:\\WINDOWS\\system32\\calc.exe",NULL,NULL,NULL,FALSE,0,NULL,NULL,&si,&pi) ) 
    {
    AfxMessageBox("打不到计算器");
    return;
    }

CString ms_DllName;
char* mc_RemoteStr;

ms_DllName="DllHook.Dll";

mc_RemoteStr=(char*)VirtualAllocEx(pi.hProcess,NULL,ms_DllName.GetLength()+1,MEM_COMMIT,PAGE_READWRITE);

WriteProcessMemory(pi.hProcess,mc_RemoteStr,ms_DllName.GetBuffer(0),ms_DllName.GetLength()+1,NULL);

/////插入DLL;
HANDLE hThread;
PTHREAD_START_ROUTINE pfn_LoadLib;

pfn_LoadLib=(PTHREAD_START_ROUTINE)GetProcAddress(GetModuleHandle(TEXT("Kernel32")),"LoadLibraryA");

hThread=CreateRemoteThread(pi.hProcess,NULL,0,pfn_LoadLib,mc_RemoteStr,0,NULL);

/////关闭远程线程；
WaitForSingleObject(hThread,INFINITE);

VirtualFreeEx(pi.hProcess,mc_RemoteStr,0,MEM_RELEASE);

/////如果进程结束，则关闭进程头和线程头；
    WaitForSingleObject( pi.hProcess, INFINITE );

    CloseHandle( pi.hProcess );
    CloseHandle( pi.hThread );

但我希望插入的是运行中的进程，讲各位论坛的朋友指正~~~或者有这样的源代码的，请发一个出来参考，谢谢!!我的邮箱：pzhccy@yahoo.com.cn再次谢谢

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