dll/directx/wine/devenum/factory.c

   1 /*
   2  *      ClassFactory implementation for DEVENUM.dll
   3  *
   4  * Copyright (C) 2002 John K. Hohm
   5  * Copyright (C) 2002 Robert Shearman
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "devenum_private.h"
  23
  24 /**********************************************************************
  25  * DEVENUM_IClassFactory_QueryInterface (also IUnknown)
  26  */
  27 static HRESULT WINAPI DEVENUM_IClassFactory_QueryInterface(IClassFactory *iface, REFIID riid,
  28     void **ppvObj)
  29 {
  30     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppvObj);
  31
  32     if (ppvObj == NULL) return E_POINTER;
  33
  34     if (IsEqualGUID(riid, &IID_IUnknown) ||
  35         IsEqualGUID(riid, &IID_IClassFactory))
  36     {
  37         *ppvObj = iface;
  38         IClassFactory_AddRef(iface);
  39         return S_OK;
  40     }
  41     else if (IsEqualGUID(riid, &IID_IParseDisplayName))
  42     {
  43         return IClassFactory_CreateInstance(iface, NULL, riid, ppvObj);
  44     }
  45
  46     FIXME("- no interface IID: %s\n", debugstr_guid(riid));
  47     return E_NOINTERFACE;
  48 }
  49
  50 /**********************************************************************
  51  * DEVENUM_IClassFactory_AddRef (also IUnknown)
  52  */
  53 static ULONG WINAPI DEVENUM_IClassFactory_AddRef(IClassFactory *iface)
  54 {
  55     TRACE("\n");
  56
  57     DEVENUM_LockModule();
  58
  59     return 2; /* non-heap based object */
  60 }
  61
  62 /**********************************************************************
  63  * DEVENUM_IClassFactory_Release (also IUnknown)
  64  */
  65 static ULONG WINAPI DEVENUM_IClassFactory_Release(IClassFactory *iface)
  66 {
  67     TRACE("\n");
  68
  69     DEVENUM_UnlockModule();
  70
  71     return 1; /* non-heap based object */
  72 }
  73
  74 /**********************************************************************
  75  * DEVENUM_IClassFactory_CreateInstance
  76  */
  77 static HRESULT WINAPI DEVENUM_IClassFactory_CreateInstance(IClassFactory *iface,
  78         IUnknown *pUnkOuter, REFIID riid, void **ppvObj)
  79 {
  80     TRACE("(%p)->(%p, %s, %p)\n", iface, pUnkOuter, debugstr_guid(riid), ppvObj);
  81
  82     if (ppvObj == NULL) return E_POINTER;
  83
  84     /* Don't support aggregation (Windows doesn't) */
  85     if (pUnkOuter != NULL) return CLASS_E_NOAGGREGATION;
  86
  87     if (IsEqualGUID(&IID_ICreateDevEnum, riid))
  88     {
  89         *ppvObj = &DEVENUM_CreateDevEnum;
  90         return S_OK;
  91     }
  92     if (IsEqualGUID(&IID_IParseDisplayName, riid))
  93     {
  94         *ppvObj = &DEVENUM_ParseDisplayName;
  95         return S_OK;
  96     }
  97
  98     return CLASS_E_CLASSNOTAVAILABLE;
  99 }
 100
 101 /**********************************************************************
 102  * DEVENUM_IClassFactory_LockServer
 103  */
 104 static HRESULT WINAPI DEVENUM_IClassFactory_LockServer(IClassFactory *iface, BOOL fLock)
 105 {
 106     TRACE("\n");
 107
 108     if (fLock)
 109         DEVENUM_LockModule();
 110     else
 111         DEVENUM_UnlockModule();
 112     return S_OK;
 113 }
 114
 115 /**********************************************************************
 116  * IClassFactory_Vtbl
 117  */
 118 static const IClassFactoryVtbl IClassFactory_Vtbl =
 119 {
 120     DEVENUM_IClassFactory_QueryInterface,
 121     DEVENUM_IClassFactory_AddRef,
 122     DEVENUM_IClassFactory_Release,
 123     DEVENUM_IClassFactory_CreateInstance,
 124     DEVENUM_IClassFactory_LockServer
 125 };
 126
 127 /**********************************************************************
 128  * static ClassFactory instance
 129  */
 130 ClassFactoryImpl DEVENUM_ClassFactory = { { &IClassFactory_Vtbl } };