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;
}
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");
}
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;
}
