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// 
// Client2.cpp - Client implementation with smart pointers 
// 
#include  
 
#include "Iface.h" 
#include "Util.h"   // Traces with labels for our output 
#include "Ptr.h"    // Smart pointer classes 
 
static inline void trace(const char* msg) 
	{ Util::Trace("Client 2", msg, S_OK) ;}  
static inline void trace(const char* msg, HRESULT hr) 
	{ Util::Trace("Client 2", msg, hr) ;} 
 
void Think()  
{ 
	trace("Create Component 1.") ; 
	IPtr spIX ;  
	HRESULT hr = CoCreateInstance(CLSID_Component1, 
	                              NULL, 
	                              CLSCTX_INPROC_SERVER,  
	                              spIX.iid(), 
	                              (void**)&spIX) ; 
	if (SUCCEEDED(hr)) 
	{ 
		trace("Succeeded creating component.") ; 
		spIX->Fx() ; 
 
		trace("Get interface IY.") ; 
		IPtr spIY ; 
		spIY = spIX ;		// Use Assignment. 
		if (spIY) 
		{ 
			spIY->Fy() ; 
 
			trace("Get interface IX from IY.") ; 
			IPtr spIX2(spIY) ; // Use Constructor. 
			if (!spIX2) 
			{ 
				trace("Could not get interface IX from IY.") ; 
			} 
			else 
			{ 
				spIX2->Fx() ; 
			} 
		} 
 
		trace("Get interface IZ.") ; 
		IPtr spIZ ; 
		spIZ = spIX ; 
		if (spIZ) 
		{ 
			spIZ->Fz() ; 
 
			trace("Get interface IX from IZ.") ; 
			IPtr spIX2(spIZ) ; 
			if (!spIX2) 
			{ 
				trace("Could not get interface IX from IZ.") ; 
			} 
			else 
			{ 
				spIX2->Fx() ; 
			} 
		} 
	} 
	else 
	{ 
		trace("Could not create component.", hr) ; 
	} 
 
} 
 
int main() 
{ 
	// Initialize COM Library. 
	CoInitialize(NULL) ; 
 
	// Exercise the smart pointers. 
	Think() ; 
 
	// Uninitialize COM Library. 
	CoUninitialize() ; 
 
	return 0 ; 
}