178 lines
5.2 KiB
C
178 lines
5.2 KiB
C
/*
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* IParseDisplayName implementation for DEVENUM.dll
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*
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* Copyright (C) 2002 Robert Shearman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* NOTES ON THIS FILE:
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* - Implements IParseDisplayName interface which creates a moniker
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* from a string in a special format
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*/
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#include "devenum_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(devenum);
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static HRESULT WINAPI DEVENUM_IParseDisplayName_QueryInterface(
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LPPARSEDISPLAYNAME iface,
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REFIID riid,
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LPVOID *ppvObj)
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{
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ICOM_THIS(ParseDisplayNameImpl, iface);
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TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
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if (This == NULL || ppvObj == NULL) return E_POINTER;
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if (IsEqualGUID(riid, &IID_IUnknown) ||
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IsEqualGUID(riid, &IID_IParseDisplayName))
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{
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*ppvObj = (LPVOID)iface;
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IParseDisplayName_AddRef(iface);
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return S_OK;
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}
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FIXME("- no interface\n\tIID:\t%s\n", debugstr_guid(riid));
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return E_NOINTERFACE;
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}
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/**********************************************************************
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* DEVENUM_IParseDisplayName_AddRef (also IUnknown)
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*/
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static ULONG WINAPI DEVENUM_IParseDisplayName_AddRef(LPPARSEDISPLAYNAME iface)
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{
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ICOM_THIS(ParseDisplayNameImpl, iface);
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TRACE("\n");
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if (This == NULL) return E_POINTER;
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if (InterlockedIncrement(&This->ref) == 1) {
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InterlockedIncrement(&dll_ref);
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}
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return ++This->ref;
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}
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/**********************************************************************
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* DEVENUM_IParseDisplayName_Release (also IUnknown)
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*/
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static ULONG WINAPI DEVENUM_IParseDisplayName_Release(LPPARSEDISPLAYNAME iface)
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{
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ICOM_THIS(ParseDisplayNameImpl, iface);
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ULONG ref;
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TRACE("\n");
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if (This == NULL) return E_POINTER;
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ref = --This->ref;
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if (InterlockedDecrement(&This->ref) == 0) {
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InterlockedDecrement(&dll_ref);
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}
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return ref;
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}
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/**********************************************************************
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* DEVENUM_IParseDisplayName_ParseDisplayName
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*
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* Creates a moniker referenced to by the display string argument
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*
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* POSSIBLE BUGS:
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* Might not handle more complicated strings properly (ie not in
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* "@device:sw:{CLSID1}\{CLSID2}" format
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*/
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static HRESULT WINAPI DEVENUM_IParseDisplayName_ParseDisplayName(
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LPPARSEDISPLAYNAME iface,
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IBindCtx *pbc,
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LPOLESTR pszDisplayName,
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ULONG *pchEaten,
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IMoniker **ppmkOut)
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{
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LPOLESTR pszBetween = NULL;
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LPOLESTR pszClass = NULL;
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IEnumMoniker * pEm = NULL;
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MediaCatMoniker * pMoniker = NULL;
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CLSID clsidDevice;
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HRESULT res = S_OK;
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TRACE("(%p, %s, %p, %p)\n", pbc, debugstr_w(pszDisplayName), pchEaten, ppmkOut);
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*ppmkOut = NULL;
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if (pchEaten)
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*pchEaten = strlenW(pszDisplayName);
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pszDisplayName = strchrW(pszDisplayName, '{');
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pszBetween = strchrW(pszDisplayName, '}') + 2;
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/* size = pszBetween - pszDisplayName - 1 (for '\\' after CLSID)
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* + 1 (for NULL character)
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*/
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pszClass = CoTaskMemAlloc((int)(pszBetween - pszDisplayName) * sizeof(WCHAR));
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if (!pszClass)
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return E_OUTOFMEMORY;
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strncpyW(pszClass, pszDisplayName, (int)(pszBetween - pszDisplayName) - 1);
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pszClass[(int)(pszBetween - pszDisplayName) - 1] = 0;
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TRACE("Device CLSID: %s\n", debugstr_w(pszClass));
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res = CLSIDFromString(pszClass, &clsidDevice);
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if (SUCCEEDED(res))
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{
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res = DEVENUM_ICreateDevEnum_CreateClassEnumerator((ICreateDevEnum *)(char*)&DEVENUM_CreateDevEnum, &clsidDevice, &pEm, 0);
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}
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if (SUCCEEDED(res))
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{
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pMoniker = DEVENUM_IMediaCatMoniker_Construct();
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if (pMoniker)
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{
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if (RegCreateKeyW(((EnumMonikerImpl *)pEm)->hkey,
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pszBetween,
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&pMoniker->hkey) == ERROR_SUCCESS)
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*ppmkOut = (LPMONIKER)pMoniker;
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else
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{
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IMoniker_Release((LPMONIKER)pMoniker);
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res = MK_E_NOOBJECT;
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}
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}
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}
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if (pEm)
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IEnumMoniker_Release(pEm);
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if (pszClass)
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CoTaskMemFree(pszClass);
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TRACE("-- returning: %lx\n", res);
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return res;
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}
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/**********************************************************************
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* IParseDisplayName_Vtbl
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*/
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static ICOM_VTABLE(IParseDisplayName) IParseDisplayName_Vtbl =
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{
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ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
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DEVENUM_IParseDisplayName_QueryInterface,
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DEVENUM_IParseDisplayName_AddRef,
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DEVENUM_IParseDisplayName_Release,
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DEVENUM_IParseDisplayName_ParseDisplayName
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};
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/* The one instance of this class */
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ParseDisplayNameImpl DEVENUM_ParseDisplayName = { &IParseDisplayName_Vtbl, 0 };
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