windows-nt/Source/XPSP1/NT/drivers/wdm/input/opos/oposserv/iunknown.cpp

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2020-09-26 03:20:57 -05:00
/*
* IUNKNOWN.CPP
*
*
*
*
*
*
*/
#include <windows.h>
#include <hidclass.h>
#include <hidsdi.h>
#include <ole2.h>
#include <ole2ver.h>
#include "..\inc\opos.h"
#include "oposserv.h"
STDMETHODIMP_(ULONG) COPOSService::AddRef()
{
return ++m_refCount;
}
STDMETHODIMP_(ULONG) COPOSService::Release()
{
ULONG result; // need sepate variable in case we free
if (--m_refCount == 0){
delete this;
result = 0;
}
else {
result = m_refCount;
}
return result;
}
STDMETHODIMP COPOSService::QueryInterface(REFIID riid, LPVOID FAR* ppvObj)
{
HRESULT result;
if (IsEqualIID(riid, IID_IUnknown) ||
IsEqualIID(riid, IID_HID_OPOS_SERVER) ||
IsEqualIID(riid, IID_IClassFactory)){
*ppvObj = this;
this->AddRef();
result = NOERROR;
// BUGBUG REMOVE
if (IsEqualIID(riid, IID_IUnknown)) Report("QueryInterface Got IID_IUnknown", 0);
else if (IsEqualIID(riid, IID_HID_OPOS_SERVER)) Report("QueryInterface Got IID_HID_OPOS_SERVER", 0);
else if (IsEqualIID(riid, IID_IClassFactory)) Report("QueryInterface Got IID_IClassFactory", 0);
else ASSERT(0);
}
else {
result = ResultFromScode(E_NOINTERFACE);
Report("QueryInterface FAILED", (DWORD)result);
}
return result;
}