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//
// Client.cpp - client implementation
//
#include <iostream.h>
#include <objbase.h>
#include "Iface.h"
void trace(const char* msg) { cout << "Client: \t\t" << msg << endl ;}
// test one component
static void testcomp(const CLSID & clsid)
{
trace("Call CoCreateInstance to create") ;
trace(" component and get interface IX.") ;
IX* pIX = NULL ;
HRESULT hr = ::CoCreateInstance(clsid,
NULL,
CLSCTX_INPROC_SERVER,
IID_IX,
(void**)&pIX) ;
if (SUCCEEDED(hr))
{
trace("Succeeded getting IX.") ;
pIX->Fx() ; // Use interface IX.
trace("Ask for interface IY.") ;
IY* pIY = NULL ;
hr = pIX->QueryInterface(IID_IY, (void**)&pIY) ;
if (SUCCEEDED(hr))
{
trace("Succeeded getting IY.") ;
pIY->Fy(12) ; // Use interface IY.
pIY->Release() ;
trace("Release IY interface.") ;
}
else
{
trace("Could not get interface IY.") ;
}
trace("Ask for interface IZ.") ;
IZ* pIZ = NULL ;
hr = pIX->QueryInterface(IID_IZ, (void**)&pIZ) ;
if (SUCCEEDED(hr))
{
int res;
trace("Succeeded in getting interface IZ.") ;
pIZ->Fz(18, &res) ;
cout << "Client: \t\tFz(18) returns " << res << endl;
pIZ->Release() ;
trace("Release IZ interface.") ;
}
else
{
trace("Could not get interface IZ.") ;
}
trace("Release IX interface.") ;
pIX->Release() ;
}
else
{
cout << "Client: \t\tCould not create component. hr = "
<< hex << hr << endl ;
}
}
//
// main function
//
int main()
{
// Initialize COM Library
CoInitialize(NULL) ;
// Testing the two components
trace("Testing Component 1...");
testcomp(CLSID_Component1);
trace("Testing Component 2...");
testcomp(CLSID_Component2);
// Uninitialize COM Library
CoUninitialize() ;
return 0 ;
}
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