/* * IParseDisplayName implementation for DEVENUM.dll * * Copyright (C) 2002 Robert Shearman * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA * * NOTES ON THIS FILE: * - Implements IParseDisplayName interface which creates a moniker * from a string in a special format */ #include "devenum_private.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(devenum); static HRESULT WINAPI DEVENUM_IParseDisplayName_QueryInterface(IParseDisplayName *iface, REFIID riid, void **ppv) { TRACE("\n\tIID:\t%s\n",debugstr_guid(riid)); if (!ppv) return E_POINTER; if (IsEqualGUID(riid, &IID_IUnknown) || IsEqualGUID(riid, &IID_IParseDisplayName)) { *ppv = iface; IParseDisplayName_AddRef(iface); return S_OK; } FIXME("- no interface IID: %s\n", debugstr_guid(riid)); *ppv = NULL; return E_NOINTERFACE; } static ULONG WINAPI DEVENUM_IParseDisplayName_AddRef(IParseDisplayName *iface) { TRACE("\n"); DEVENUM_LockModule(); return 2; /* non-heap based object */ } static ULONG WINAPI DEVENUM_IParseDisplayName_Release(IParseDisplayName *iface) { TRACE("\n"); DEVENUM_UnlockModule(); return 1; /* non-heap based object */ } /********************************************************************** * DEVENUM_IParseDisplayName_ParseDisplayName * * Creates a moniker referenced to by the display string argument * * POSSIBLE BUGS: * Might not handle more complicated strings properly (ie anything * not in "@device:sw:{CLSID1}\<filter name or CLSID>" format */ static HRESULT WINAPI DEVENUM_IParseDisplayName_ParseDisplayName(IParseDisplayName *iface, IBindCtx *pbc, LPOLESTR name, ULONG *eaten, IMoniker **ret) { WCHAR buffer[MAX_PATH]; enum device_type type; MediaCatMoniker *mon; CLSID class; TRACE("(%p, %s, %p, %p)\n", pbc, debugstr_w(name), eaten, ret); *ret = NULL; if (eaten) *eaten = lstrlenW(name); name = wcschr(name, ':') + 1; if (!wcsncmp(name, swW, 3)) { type = DEVICE_FILTER; name += 3; } else if (!wcsncmp(name, cmW, 3)) { type = DEVICE_CODEC; name += 3; } else if (!wcsncmp(name, dmoW, 4)) { type = DEVICE_DMO; name += 4; } else { FIXME("unhandled device type %s\n", debugstr_w(name)); return MK_E_SYNTAX; } if (!(mon = DEVENUM_IMediaCatMoniker_Construct())) return E_OUTOFMEMORY; if (type == DEVICE_DMO) { lstrcpynW(buffer, name, CHARS_IN_GUID); if (FAILED(CLSIDFromString(buffer, &mon->clsid))) { IMoniker_Release(&mon->IMoniker_iface); return MK_E_SYNTAX; } lstrcpynW(buffer, name + CHARS_IN_GUID - 1, CHARS_IN_GUID); if (FAILED(CLSIDFromString(buffer, &mon->class))) { IMoniker_Release(&mon->IMoniker_iface); return MK_E_SYNTAX; } } else { lstrcpynW(buffer, name, CHARS_IN_GUID); if (CLSIDFromString(buffer, &class) == S_OK) { mon->has_class = TRUE; mon->class = class; name += CHARS_IN_GUID; } if (!(mon->name = CoTaskMemAlloc((lstrlenW(name) + 1) * sizeof(WCHAR)))) { IMoniker_Release(&mon->IMoniker_iface); return E_OUTOFMEMORY; } lstrcpyW(mon->name, name); } mon->type = type; *ret = &mon->IMoniker_iface; return S_OK; } /********************************************************************** * IParseDisplayName_Vtbl */ static const IParseDisplayNameVtbl IParseDisplayName_Vtbl = { DEVENUM_IParseDisplayName_QueryInterface, DEVENUM_IParseDisplayName_AddRef, DEVENUM_IParseDisplayName_Release, DEVENUM_IParseDisplayName_ParseDisplayName }; /* The one instance of this class */ IParseDisplayName DEVENUM_ParseDisplayName = { &IParseDisplayName_Vtbl };