2 * IParseDisplayName implementation for DEVENUM.dll
4 * Copyright (C) 2002 Robert Shearman
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.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 * - Implements IParseDisplayName interface which creates a moniker
22 * from a string in a special format
24 #include "devenum_private.h"
26 #include "wine/debug.h"
28 WINE_DEFAULT_DEBUG_CHANNEL(devenum
);
30 static HRESULT WINAPI
DEVENUM_IParseDisplayName_QueryInterface(
31 LPPARSEDISPLAYNAME iface
,
35 ParseDisplayNameImpl
*This
= (ParseDisplayNameImpl
*)iface
;
36 TRACE("\n\tIID:\t%s\n",debugstr_guid(riid
));
38 if (This
== NULL
|| ppvObj
== NULL
) return E_POINTER
;
40 if (IsEqualGUID(riid
, &IID_IUnknown
) ||
41 IsEqualGUID(riid
, &IID_IParseDisplayName
))
43 *ppvObj
= (LPVOID
)iface
;
44 IParseDisplayName_AddRef(iface
);
48 FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid
));
52 /**********************************************************************
53 * DEVENUM_IParseDisplayName_AddRef (also IUnknown)
55 static ULONG WINAPI
DEVENUM_IParseDisplayName_AddRef(LPPARSEDISPLAYNAME iface
)
57 ParseDisplayNameImpl
*This
= (ParseDisplayNameImpl
*)iface
;
60 if (This
== NULL
) return E_POINTER
;
62 if (InterlockedIncrement(&This
->ref
) == 1) {
63 InterlockedIncrement(&dll_ref
);
69 /**********************************************************************
70 * DEVENUM_IParseDisplayName_Release (also IUnknown)
72 static ULONG WINAPI
DEVENUM_IParseDisplayName_Release(LPPARSEDISPLAYNAME iface
)
74 ParseDisplayNameImpl
*This
= (ParseDisplayNameImpl
*)iface
;
78 if (This
== NULL
) return E_POINTER
;
81 if (InterlockedDecrement(&This
->ref
) == 0) {
82 InterlockedDecrement(&dll_ref
);
87 /**********************************************************************
88 * DEVENUM_IParseDisplayName_ParseDisplayName
90 * Creates a moniker referenced to by the display string argument
93 * Might not handle more complicated strings properly (ie anything
94 * not in "@device:sw:{CLSID1}\<filter name or CLSID>" format
96 static HRESULT WINAPI
DEVENUM_IParseDisplayName_ParseDisplayName(
97 LPPARSEDISPLAYNAME iface
,
99 LPOLESTR pszDisplayName
,
103 LPOLESTR pszBetween
= NULL
;
104 LPOLESTR pszClass
= NULL
;
105 IEnumMoniker
* pEm
= NULL
;
106 MediaCatMoniker
* pMoniker
= NULL
;
110 TRACE("(%p, %s, %p, %p)\n", pbc
, debugstr_w(pszDisplayName
), pchEaten
, ppmkOut
);
114 *pchEaten
= strlenW(pszDisplayName
);
116 pszDisplayName
= strchrW(pszDisplayName
, '{');
117 pszBetween
= strchrW(pszDisplayName
, '}') + 2;
119 /* size = pszBetween - pszDisplayName - 1 (for '\\' after CLSID)
120 * + 1 (for NULL character)
122 pszClass
= CoTaskMemAlloc((int)(pszBetween
- pszDisplayName
) * sizeof(WCHAR
));
124 return E_OUTOFMEMORY
;
126 strncpyW(pszClass
, pszDisplayName
, (int)(pszBetween
- pszDisplayName
) - 1);
127 pszClass
[(int)(pszBetween
- pszDisplayName
) - 1] = 0;
129 TRACE("Device CLSID: %s\n", debugstr_w(pszClass
));
131 res
= CLSIDFromString(pszClass
, &clsidDevice
);
135 res
= DEVENUM_ICreateDevEnum_CreateClassEnumerator((ICreateDevEnum
*)(char*)&DEVENUM_CreateDevEnum
, &clsidDevice
, &pEm
, 0);
136 if (res
== S_FALSE
) /* S_FALSE means no category */
142 pMoniker
= DEVENUM_IMediaCatMoniker_Construct();
145 if (RegCreateKeyW(((EnumMonikerImpl
*)pEm
)->hkey
,
147 &pMoniker
->hkey
) == ERROR_SUCCESS
)
148 *ppmkOut
= (LPMONIKER
)pMoniker
;
151 IMoniker_Release((LPMONIKER
)pMoniker
);
158 IEnumMoniker_Release(pEm
);
161 CoTaskMemFree(pszClass
);
163 TRACE("-- returning: %lx\n", res
);
167 /**********************************************************************
168 * IParseDisplayName_Vtbl
170 static IParseDisplayNameVtbl IParseDisplayName_Vtbl
=
172 DEVENUM_IParseDisplayName_QueryInterface
,
173 DEVENUM_IParseDisplayName_AddRef
,
174 DEVENUM_IParseDisplayName_Release
,
175 DEVENUM_IParseDisplayName_ParseDisplayName
178 /* The one instance of this class */
179 ParseDisplayNameImpl DEVENUM_ParseDisplayName
= { &IParseDisplayName_Vtbl
, 0 };