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148 lines
4 KiB
C
148 lines
4 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 name, ULONG *eaten, IMoniker **ret)
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{
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WCHAR buffer[MAX_PATH];
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enum device_type type;
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MediaCatMoniker *mon;
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CLSID class;
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TRACE("(%p, %s, %p, %p)\n", pbc, debugstr_w(name), eaten, ret);
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*ret = NULL;
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if (eaten)
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*eaten = strlenW(name);
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name = strchrW(name, ':') + 1;
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if (name[0] == 's' && name[1] == 'w' && name[2] == ':')
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{
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type = DEVICE_FILTER;
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name += 3;
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}
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else if (name[0] == 'c' && name[1] == 'm' && name[2] == ':')
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{
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type = DEVICE_CODEC;
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name += 3;
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}
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else
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{
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FIXME("unhandled device type %s\n", debugstr_w(name));
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return MK_E_SYNTAX;
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}
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if (!(mon = DEVENUM_IMediaCatMoniker_Construct()))
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return E_OUTOFMEMORY;
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lstrcpynW(buffer, name, CHARS_IN_GUID);
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if (CLSIDFromString(buffer, &class) == S_OK)
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{
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mon->has_class = TRUE;
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mon->class = class;
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name += CHARS_IN_GUID;
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}
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mon->type = type;
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if (!(mon->name = CoTaskMemAlloc((strlenW(name) + 1) * sizeof(WCHAR))))
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{
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IMoniker_Release(&mon->IMoniker_iface);
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return E_OUTOFMEMORY;
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}
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strcpyW(mon->name, name);
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*ret = &mon->IMoniker_iface;
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return S_OK;
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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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