What is this code?

Posted by Aerovistae on Programmers See other posts from Programmers or by Aerovistae
Published on 2012-11-18T19:14:01Z Indexed on 2012/11/18 23:28 UTC
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This is from the Evolution of a Programmer "joke", at the "Master Programmer" level. It seems to be C++, but I don't know what all this bloated extra stuff is, nor did any Google searches turn up anything except the joke I took it from. Can anyone tell me more about what I'm reading here?

  [
  uuid(2573F8F4-CFEE-101A-9A9F-00AA00342820)
  ]
  library LHello
  {
      // bring in the master library
      importlib("actimp.tlb");
      importlib("actexp.tlb");
      // bring in my interfaces
      #include "pshlo.idl"
      [
      uuid(2573F8F5-CFEE-101A-9A9F-00AA00342820)
      ]
      cotype THello
   {
   interface IHello;
   interface IPersistFile;
   };
  };
  [
  exe,
  uuid(2573F890-CFEE-101A-9A9F-00AA00342820)
  ]
  module CHelloLib
  {
      // some code related header files
      importheader(<windows.h>);
      importheader(<ole2.h>);
      importheader(<except.hxx>);
      importheader("pshlo.h");
      importheader("shlo.hxx");
      importheader("mycls.hxx");
      // needed typelibs
      importlib("actimp.tlb");
      importlib("actexp.tlb");
      importlib("thlo.tlb");
      [
      uuid(2573F891-CFEE-101A-9A9F-00AA00342820),
      aggregatable
      ]
      coclass CHello
   {
   cotype THello;
   };
  };
  #include "ipfix.hxx"
  extern HANDLE hEvent;
  class CHello : public CHelloBase
  {
  public:
      IPFIX(CLSID_CHello);
      CHello(IUnknown *pUnk);
      ~CHello();
      HRESULT  __stdcall PrintSz(LPWSTR pwszString);
  private:
      static int cObjRef;
  };
  #include <windows.h>
  #include <ole2.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include "thlo.h"
  #include "pshlo.h"
  #include "shlo.hxx"
  #include "mycls.hxx"
  int CHello:cObjRef = 0;
  CHello::CHello(IUnknown *pUnk) : CHelloBase(pUnk)
  {
      cObjRef++;
      return;
  }
  HRESULT  __stdcall  CHello::PrintSz(LPWSTR pwszString)
  {
      printf("%ws\n", pwszString);
      return(ResultFromScode(S_OK));
  }

  CHello::~CHello(void)
  {
  // when the object count goes to zero, stop the server
  cObjRef--;
  if( cObjRef == 0 )
      PulseEvent(hEvent);
  return;
  }
  #include <windows.h>
  #include <ole2.h>
  #include "pshlo.h"
  #include "shlo.hxx"
  #include "mycls.hxx"
  HANDLE hEvent;
   int _cdecl main(
  int argc,
  char * argv[]
  ) {
  ULONG ulRef;
  DWORD dwRegistration;
  CHelloCF *pCF = new CHelloCF();
  hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
  // Initialize the OLE libraries
  CoInitiali, NULL);
  // Initialize the OLE libraries
  CoInitializeEx(NULL, COINIT_MULTITHREADED);
  CoRegisterClassObject(CLSID_CHello, pCF, CLSCTX_LOCAL_SERVER,
      REGCLS_MULTIPLEUSE, &dwRegistration);
  // wait on an event to stop
  WaitForSingleObject(hEvent, INFINITE);
  // revoke and release the class object
  CoRevokeClassObject(dwRegistration);
  ulRef = pCF->Release();
  // Tell OLE we are going away.
  CoUninitialize();
  return(0); }
  extern CLSID CLSID_CHello;
  extern UUID LIBID_CHelloLib;
  CLSID CLSID_CHello = { /* 2573F891-CFEE-101A-9A9F-00AA00342820 */
      0x2573F891,
      0xCFEE,
      0x101A,
      { 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20 }
  };
  UUID LIBID_CHelloLib = { /* 2573F890-CFEE-101A-9A9F-00AA00342820 */
      0x2573F890,
      0xCFEE,
      0x101A,
      { 0x9A, 0x9F, 0x00, 0xAA, 0x00, 0x34, 0x28, 0x20 }
  };
  #include <windows.h>
  #include <ole2.h>
  #include <stdlib.h>
  #include <string.h>
  #include <stdio.h>
  #include "pshlo.h"
  #include "shlo.hxx"
  #include "clsid.h"
  int _cdecl main(
  int argc,
  char * argv[]
  ) {
  HRESULT  hRslt;
  IHello        *pHello;
  ULONG  ulCnt;
  IMoniker * pmk;
  WCHAR  wcsT[_MAX_PATH];
  WCHAR  wcsPath[2 * _MAX_PATH];
  // get object path
  wcsPath[0] = '\0';
  wcsT[0] = '\0';
  if( argc > 1) {
      mbstowcs(wcsPath, argv[1], strlen(argv[1]) + 1);
      wcsupr(wcsPath);
      }
  else {
      fprintf(stderr, "Object path must be specified\n");
      return(1);
      }
  // get print string
  if(argc > 2)
      mbstowcs(wcsT, argv[2], strlen(argv[2]) + 1);
  else
      wcscpy(wcsT, L"Hello World");
  printf("Linking to object %ws\n", wcsPath);
  printf("Text String %ws\n", wcsT);
  // Initialize the OLE libraries
  hRslt = CoInitializeEx(NULL, COINIT_MULTITHREADED);
  if(SUCCEEDED(hRslt)) {
      hRslt = CreateFileMoniker(wcsPath, &pmk);
      if(SUCCEEDED(hRslt))
   hRslt = BindMoniker(pmk, 0, IID_IHello, (void **)&pHello);
      if(SUCCEEDED(hRslt)) {
   // print a string out
   pHello->PrintSz(wcsT);
   Sleep(2000);
   ulCnt = pHello->Release();
   }
      else
   printf("Failure to connect, status: %lx", hRslt);
      // Tell OLE we are going away.
      CoUninitialize();
      }
  return(0);
  }

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