Пример #1
0
int main(int argc, char* argv[])
{
	IMath *pMath = GetInterface( );
	int sum = 0;
	pMath->Add( 3, 2, &sum );
	int sub = 0;
	pMath->Sub( 3, 2, &sub );
	printf( "sum=%d, sub=%d\n", sum, sub );
	IMath2 *pMath2 = NULL;
	pMath->QueryInterface( IID_IMath2, (LPVOID*)&pMath2 );
	pMath->Release( );
	int mul = 0;
	pMath2->Mul( 3, 2, &mul );
	int div = 0;
	pMath2->Div( 100, 2, &div );
	printf( "mul=%d, div=%d\n", mul, div );
	pMath->Release( );
	return 0;
}
Пример #2
0
int main()
{
	cout << "init com \n";

	if(FAILED(CoInitialize(NULL)))
	{
		cout << "init failed\n";
	}

	CLSID clsid;
	HRESULT hr = ::CLSIDFromProgID(L"Chapter2.Math.1", &clsid);
	if(FAILED(hr))
	{
		cout << "get CLISI from ProgId failed \n";
	}

	IClassFactory* pcf = NULL;

	hr = CoGetClassObject(
		clsid, 
		CLSCTX_INPROC,
		NULL,
		IID_IClassFactory,
		(void**)&pcf);

	if(FAILED(hr))
	{
		cout << "get IClass Factory failed \n";
	}

	IUnknown* pUnk = NULL;
	hr = pcf->CreateInstance(NULL, IID_IUnknown, (void**)&pUnk);
	
	pcf->Release();

	if(FAILED(hr))
	{
		cout << "get Iunkdown failed \n";
	}


	IMath* pMath = NULL;
	hr = pUnk->QueryInterface(IID_IMath, (void**)&pMath);
	pUnk->Release();
	
	if(FAILED(hr))
	{
		cout <<"get Imath failed \n";
	}

	long op = 1;
	long op2 = 3;
	long res = 0;
	pMath->Add(op, op2, res);

	cout << "Imath add : res = " << res << " \n";

	pMath->Subtract(op, op2, res);

	cout << "Imath subtract : res = " << res << " \n";


	system("pause");
}
Пример #3
0
int main( int argc, char *argv[] ) 
  { 
  printf( "Initializing COM \n"); 
  if ( FAILED( CoInitialize( NULL ))) 
  { 
	  printf( "Unable to initialize COM \n"); return -1; 
  } 
  char* szProgID = "Math.Component.1"; 
  WCHAR szWideProgID[128]; 
  CLSID clsid; 
  long lLen = MultiByteToWideChar( CP_ACP, 0, szProgID,strlen( szProgID ), szWideProgID, sizeof( szWideProgID ) ); 
  szWideProgID[ lLen ] = '\0'; 
  HRESULT hr = ::CLSIDFromProgID( szWideProgID, &clsid ); 
  if ( FAILED( hr )) 
  { 
	  printf("Unable to get CLSID from ProgID. HR = %X \n",hr); return -1;
  } 
  IClassFactory* pCF; 
  // Получить фабрику класса для CMath 
  hr = CoGetClassObject( clsid, CLSCTX_INPROC, NULL,IID_IClassFactory, (void**) &pCF ); 
  if ( FAILED( hr )) 
  { 
	  printf("Failed to GetClassObject server instance. HR = %X \n",hr); return -1; 
  } 
  
  // с помощью фабрики класса создать экземпляр 
  // компонента и получить интерфейс IUnknown. 
  
  IUnknown* pUnk; 
  hr = pCF->CreateInstance( NULL, IID_IUnknown, (void**) &pUnk ); 
  
  // Release the class factory pCF->Release(); 
  if ( FAILED( hr )) 
  { 
	  printf("Failed to create server instance. HR =%X \n",hr); return -1; 
  } 
  printf("Instance created \n"); 
  IMath* pMath = NULL; 
  hr = pUnk->QueryInterface( IID_IMath, (LPVOID*)&pMath ); 
  pUnk->Release(); 
  if ( FAILED( hr )) 
  { 
	  printf("QueryInterface() for IMath failed \n"); return -1; 
  } 
  
  long result; 

  pMath->Add(255,125,&result);
  printf("Func - Add: 255 + 125 is %d \n",result);

  pMath->Multiply( 30, 8, &result ); 
  printf("Func - Mltiply: 30 * 8 is %d \n",result); 

  pMath->Subtract( 200, 123, &result ); 
  printf("Func - Substract: 200 - 123 is %d \n",result);

  pMath->Divide(21,3,&result);
  printf("Func - Divide: 21 / 3 is %d \n",result);
  printf("Releasing instance \n"); 

  pMath->Release(); 
  printf("Shuting down COM\n"); 
  CoUninitialize();
  _getch();
  return 0; 
}