dlls/wiaservc/factory.c

   1 /*
   2  * Class factory interface for WiaServc
   3  *
   4  * Copyright (C) 2009 Damjan Jovanovic
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include "objbase.h"
  24 #include "winuser.h"
  25 #include "winreg.h"
  26 #include "initguid.h"
  27 #include "wia_lh.h"
  28
  29 #include "wiaservc_private.h"
  30
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(wia);
  34
  35 static inline ClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  36 {
  37     return CONTAINING_RECORD(iface, ClassFactoryImpl, IClassFactory_iface);
  38 }
  39
  40 static ULONG WINAPI
  41 WIASERVC_IClassFactory_AddRef(LPCLASSFACTORY iface)
  42 {
  43     return 2;
  44 }
  45
  46 static HRESULT WINAPI
  47 WIASERVC_IClassFactory_QueryInterface(LPCLASSFACTORY iface, REFIID riid,
  48                                       LPVOID *ppvObj)
  49 {
  50     ClassFactoryImpl *This = impl_from_IClassFactory(iface);
  51
  52     if (IsEqualGUID(riid, &IID_IUnknown) || IsEqualGUID(riid, &IID_IClassFactory))
  53     {
  54         *ppvObj = &This->IClassFactory_iface;
  55         return S_OK;
  56     }
  57
  58     *ppvObj = NULL;
  59     return E_NOINTERFACE;
  60 }
  61
  62 static ULONG WINAPI
  63 WIASERVC_IClassFactory_Release(LPCLASSFACTORY iface)
  64 {
  65     return 1;
  66 }
  67
  68 static HRESULT WINAPI
  69 WIASERVC_IClassFactory_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pUnkOuter,
  70                                       REFIID riid, LPVOID *ppvObj)
  71 {
  72     HRESULT res;
  73     IWiaDevMgr *devmgr = NULL;
  74
  75     TRACE("IID: %s\n", debugstr_guid(riid));
  76
  77     if (pUnkOuter)
  78         return CLASS_E_NOAGGREGATION;
  79
  80     res = wiadevmgr_Constructor(&devmgr);
  81     if (FAILED(res))
  82         return res;
  83
  84     res = IWiaDevMgr_QueryInterface(devmgr, riid, ppvObj);
  85     IWiaDevMgr_Release(devmgr);
  86     return res;
  87 }
  88
  89 static HRESULT WINAPI
  90 WIASERVC_IClassFactory_LockServer(LPCLASSFACTORY iface, BOOL fLock)
  91 {
  92     FIXME("Not implemented\n");
  93     return E_NOTIMPL;
  94 }
  95
  96 static const IClassFactoryVtbl WIASERVC_IClassFactory_Vtbl =
  97 {
  98     WIASERVC_IClassFactory_QueryInterface,
  99     WIASERVC_IClassFactory_AddRef,
 100     WIASERVC_IClassFactory_Release,
 101     WIASERVC_IClassFactory_CreateInstance,
 102     WIASERVC_IClassFactory_LockServer
 103 };
 104
 105 ClassFactoryImpl WIASERVC_ClassFactory =
 106 {
 107     { &WIASERVC_IClassFactory_Vtbl }
 108 };