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157 lines
4.6 KiB
C
157 lines
4.6 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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(IParseDisplayName *iface,
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REFIID riid, void **ppv)
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{
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TRACE("\n\tIID:\t%s\n",debugstr_guid(riid));
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if (!ppv)
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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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*ppv = 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 IID: %s\n", debugstr_guid(riid));
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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static ULONG WINAPI DEVENUM_IParseDisplayName_AddRef(IParseDisplayName *iface)
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{
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TRACE("\n");
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DEVENUM_LockModule();
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return 2; /* non-heap based object */
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}
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static ULONG WINAPI DEVENUM_IParseDisplayName_Release(IParseDisplayName *iface)
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{
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TRACE("\n");
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DEVENUM_UnlockModule();
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return 1; /* non-heap based object */
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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 anything
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* not in "@device:sw:{CLSID1}\<filter name or CLSID>" format
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*/
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static HRESULT WINAPI DEVENUM_IParseDisplayName_ParseDisplayName(IParseDisplayName *iface,
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IBindCtx *pbc, LPOLESTR pszDisplayName, ULONG *pchEaten, IMoniker **ppmkOut)
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{
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LPOLESTR pszBetween = NULL;
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LPOLESTR pszClass = 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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WCHAR wszRegKeyName[MAX_PATH];
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HKEY hbasekey;
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int classlen;
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static const WCHAR wszRegSeparator[] = {'\\', 0 };
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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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classlen = (int)(pszBetween - pszDisplayName - 1);
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pszClass = CoTaskMemAlloc((classlen + 1) * sizeof(WCHAR));
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if (!pszClass)
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return E_OUTOFMEMORY;
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memcpy(pszClass, pszDisplayName, classlen * sizeof(WCHAR));
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pszClass[classlen] = 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_GetCategoryKey(&clsidDevice, &hbasekey, wszRegKeyName, MAX_PATH);
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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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strcatW(wszRegKeyName, wszRegSeparator);
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strcatW(wszRegKeyName, pszBetween);
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if (RegCreateKeyW(hbasekey, wszRegKeyName, &pMoniker->hkey) == ERROR_SUCCESS)
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*ppmkOut = &pMoniker->IMoniker_iface;
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else
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{
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IMoniker_Release(&pMoniker->IMoniker_iface);
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res = MK_E_NOOBJECT;
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}
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}
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}
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CoTaskMemFree(pszClass);
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TRACE("-- returning: %x\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 const IParseDisplayNameVtbl IParseDisplayName_Vtbl =
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{
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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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IParseDisplayName DEVENUM_ParseDisplayName = { &IParseDisplayName_Vtbl };
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