C / C++ / MFC

void DoEvents()
{
	MSG m;
	while (::PeekMessage(&m, NULL, 0, 0, PM_REMOVE))
	{
		::TranslateMessage(&m);
		::DispatchMessage(&m);
	}
}

ptr_Electron wrote:

Sleep(100); // Try to minimize CPU usage

HANDLE timer = CreateWaitableTimer(0,false,0);
    LARGE_INTEGER li;
    const int unitsPerSecond=10*1000*1000; // 100 nano seconds
	li.QuadPart=-(2*unitsPerSecond);
    SetWaitableTimer(timer,&li,350,0,0,false);
   _beginthreadex(0,0,TF,(void*) timer,0,0); // call


unsigned __stdcall TF(void* arg) // def
 {
  HANDLE timer=(HANDLE) arg;

  while (1)
  {
	  if(iStoped==0)
		  return 0;
    WaitForSingleObject(timer,INFINITE);
	//PostMessage(hwnd1,WM_USER_THREAD_UPDATE_PROGRESS1, 0, 100);
	prgBar->StepIt(); // prg bar is progressing
        DoEvents(); // this is not working, UI is frized
  }

_endthread();
return 0;
}



void DoEvents() 
{
      MSG oMSG;
      while(::PeekMessage(&oMSG, NULL, 0, 0, PM_NOREMOVE))
      { 
                  ::TranslateMessage(&oMSG);
                  ::DispatchMessage(&oMSG);
       }
}

• If the object is in a different process then PRC is used.
• If the COM object is apartment threaded and in the same process then windows messages are used.

George_George wrote:

my question is how could proxy object know which is the original coclass object which it will send call parameters to and retrive return result from?

George_George wrote:

But if we only provides the IID, how could proxy knows which original coclass implements the IID and call the original coclass?