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// 
// Client.cpp - client implementation 
// 
#include  
#include  
 
#include "Iface.h" 
 
void trace(const char* msg) { cout << "Client: \t" << msg << endl ;} 
 
// 
// main function 
// 
int main() 
{ 
	// Initialize COM Library 
	CoInitialize(NULL) ; 
	 
	trace("Get interface IX from Component 1.") ; 
	IX* pIX = NULL ;  
	HRESULT hr = ::CoCreateInstance(CLSID_Component1, 
	                                NULL,  
	                                CLSCTX_INPROC_SERVER, 
	                                IID_IX,  
	                                (void**)&pIX) ; 
	if (SUCCEEDED(hr)) 
	{ 
		trace("Succeeded creating component.") ; 
		pIX->Fx() ; 
		 
		trace("Get interface IY from IX.") ; 
		IY* pIY = NULL ; 
		hr = pIX->QueryInterface(IID_IY, (void**)&pIY) ; 
		if (SUCCEEDED(hr)) 
		{ 
			trace("Succeeded getting interface IY from IX.") ; 
			pIY->Fy() ; 
			 
			trace("Get interface IX from IY.") ; 
			IX* pIX2 = NULL ; 
			hr = pIY->QueryInterface(IID_IX, (void**)&pIX2); 
			if (SUCCEEDED(hr)) 
			{ 
				trace("Succeeded getting interface IX from IY.") ; 
				pIX2->Release() ; 
			} 
			else 
			{ 
				trace("Error! Should have gotten interface IX.") ; 
			} 
			 
			pIY->Release() ; 
		} 
		else 
		{ 
			trace("Could not get interface IY.") ; 
		} 
		 
		pIX->Release() ; 
	} 
	else 
	{ 
		cout << "Could not create component: " << hex << hr << endl ; 
	} 
	 
	// Uninitialize COM Library 
	CoUninitialize() ; 
	 
	return 0 ; 
}