Sweden-Number/dlls/devenum/factory.c

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2003-07-01 06:30:30 +02:00
/*
* ClassFactory implementation for DEVENUM.dll
*
* Copyright (C) 2002 John K. Hohm
* Copyright (C) 2002 Robert Shearman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "devenum_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(devenum);
/**********************************************************************
* DEVENUM_IClassFactory_QueryInterface (also IUnknown)
*/
static HRESULT WINAPI DEVENUM_IClassFactory_QueryInterface(
LPCLASSFACTORY iface,
REFIID riid,
LPVOID *ppvObj)
{
ICOM_THIS(ClassFactoryImpl, iface);
TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
if (This == NULL || ppvObj == NULL) return E_POINTER;
if (IsEqualGUID(riid, &IID_IUnknown) ||
IsEqualGUID(riid, &IID_IClassFactory))
{
*ppvObj = (LPVOID)iface;
IClassFactory_AddRef(iface);
return S_OK;
}
else if (IsEqualGUID(riid, &IID_IParseDisplayName))
{
return IClassFactory_CreateInstance(iface, NULL, riid, ppvObj);
}
FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
return E_NOINTERFACE;
}
/**********************************************************************
* DEVENUM_IClassFactory_AddRef (also IUnknown)
*/
static ULONG WINAPI DEVENUM_IClassFactory_AddRef(LPCLASSFACTORY iface)
{
ICOM_THIS(ClassFactoryImpl, iface);
TRACE("\n");
if (This == NULL) return E_POINTER;
This->ref++;
if (InterlockedIncrement(&This->ref) == 1) {
InterlockedIncrement(&dll_ref);
}
return This->ref;
}
/**********************************************************************
* DEVENUM_IClassFactory_Release (also IUnknown)
*/
static ULONG WINAPI DEVENUM_IClassFactory_Release(LPCLASSFACTORY iface)
{
ICOM_THIS(ClassFactoryImpl, iface);
TRACE("\n");
if (This == NULL) return E_POINTER;
if (InterlockedDecrement(&This->ref) == 0) {
InterlockedDecrement(&dll_ref);
}
return This->ref;
}
/**********************************************************************
* DEVENUM_IClassFactory_CreateInstance
*/
static HRESULT WINAPI DEVENUM_IClassFactory_CreateInstance(
LPCLASSFACTORY iface,
LPUNKNOWN pUnkOuter,
REFIID riid,
LPVOID *ppvObj)
{
ICOM_THIS(ClassFactoryImpl, iface);
TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
if (This == NULL || ppvObj == NULL) return E_POINTER;
/* Don't support aggregation (Windows doesn't) */
if (pUnkOuter != NULL) return CLASS_E_NOAGGREGATION;
if (IsEqualGUID(&IID_ICreateDevEnum, riid))
{
*ppvObj = &DEVENUM_CreateDevEnum;
return S_OK;
}
if (IsEqualGUID(&IID_IParseDisplayName, riid))
{
*ppvObj = &DEVENUM_ParseDisplayName;
return S_OK;
}
return CLASS_E_CLASSNOTAVAILABLE;
}
/**********************************************************************
* DEVENUM_IClassFactory_LockServer
*/
static HRESULT WINAPI DEVENUM_IClassFactory_LockServer(
LPCLASSFACTORY iface,
BOOL fLock)
{
TRACE("\n");
if (fLock != FALSE) {
IClassFactory_AddRef(iface);
} else {
IClassFactory_Release(iface);
}
return S_OK;
}
/**********************************************************************
* IClassFactory_Vtbl
*/
static IClassFactoryVtbl IClassFactory_Vtbl =
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{
DEVENUM_IClassFactory_QueryInterface,
DEVENUM_IClassFactory_AddRef,
DEVENUM_IClassFactory_Release,
DEVENUM_IClassFactory_CreateInstance,
DEVENUM_IClassFactory_LockServer
};
/**********************************************************************
* static ClassFactory instance
*/
ClassFactoryImpl DEVENUM_ClassFactory = { &IClassFactory_Vtbl, 0 };