| /* |
| * Exported APIs. |
| * |
| * hidenori@a2.ctktv.ne.jp |
| */ |
| |
| #include "config.h" |
| |
| #include "windef.h" |
| #include "winerror.h" |
| #include "winbase.h" |
| #include "wingdi.h" |
| #include "winuser.h" |
| #include "winnls.h" |
| #include "mmsystem.h" |
| #include "ole2.h" |
| #include "wine/obj_oleaut.h" |
| #include "strmif.h" |
| #include "control.h" |
| #include "uuids.h" |
| #include "errors.h" |
| |
| #include "debugtools.h" |
| DEFAULT_DEBUG_CHANNEL(quartz); |
| |
| #include "quartz_private.h" |
| #include "fgraph.h" |
| #include "sysclock.h" |
| #include "memalloc.h" |
| #include "devenum.h" |
| #include "fmap.h" |
| #include "fmap2.h" |
| #include "seekpass.h" |
| #include "audren.h" |
| #include "vidren.h" |
| #include "parser.h" |
| |
| typedef struct QUARTZ_CLASSENTRY |
| { |
| const CLSID* pclsid; |
| QUARTZ_pCreateIUnknown pCreateIUnk; |
| } QUARTZ_CLASSENTRY; |
| |
| |
| static HRESULT WINAPI |
| IClassFactory_fnQueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj); |
| static ULONG WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface); |
| static ULONG WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface); |
| static HRESULT WINAPI IClassFactory_fnCreateInstance(LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj); |
| static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface,BOOL dolock); |
| |
| static ICOM_VTABLE(IClassFactory) iclassfact = |
| { |
| ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE |
| IClassFactory_fnQueryInterface, |
| IClassFactory_fnAddRef, |
| IClassFactory_fnRelease, |
| IClassFactory_fnCreateInstance, |
| IClassFactory_fnLockServer |
| }; |
| |
| typedef struct |
| { |
| /* IUnknown fields */ |
| ICOM_VFIELD(IClassFactory); |
| LONG ref; |
| /* IClassFactory fields */ |
| const QUARTZ_CLASSENTRY* pEntry; |
| } IClassFactoryImpl; |
| |
| static const QUARTZ_CLASSENTRY QUARTZ_ClassList[] = |
| { |
| { &CLSID_FilterGraph, &QUARTZ_CreateFilterGraph }, |
| { &CLSID_SystemClock, &QUARTZ_CreateSystemClock }, |
| { &CLSID_MemoryAllocator, &QUARTZ_CreateMemoryAllocator }, |
| { &CLSID_SystemDeviceEnum, &QUARTZ_CreateSystemDeviceEnum }, |
| { &CLSID_FilterMapper, &QUARTZ_CreateFilterMapper }, |
| { &CLSID_FilterMapper2, &QUARTZ_CreateFilterMapper2 }, |
| { &CLSID_SeekingPassThru, &QUARTZ_CreateSeekingPassThru }, |
| { &CLSID_AudioRender, &QUARTZ_CreateAudioRenderer }, |
| { &CLSID_VideoRenderer, &QUARTZ_CreateVideoRenderer }, |
| { &CLSID_quartzWaveParser, &QUARTZ_CreateWaveParser }, |
| { NULL, NULL }, |
| }; |
| |
| /* per-process variables */ |
| static CRITICAL_SECTION csHeap; |
| static DWORD dwClassObjRef; |
| static HANDLE hDLLHeap; |
| |
| void* QUARTZ_AllocObj( DWORD dwSize ) |
| { |
| void* pv; |
| |
| EnterCriticalSection( &csHeap ); |
| dwClassObjRef ++; |
| pv = HeapAlloc( hDLLHeap, 0, dwSize ); |
| if ( pv == NULL ) |
| dwClassObjRef --; |
| LeaveCriticalSection( &csHeap ); |
| |
| return pv; |
| } |
| |
| void QUARTZ_FreeObj( void* pobj ) |
| { |
| EnterCriticalSection( &csHeap ); |
| HeapFree( hDLLHeap, 0, pobj ); |
| dwClassObjRef --; |
| LeaveCriticalSection( &csHeap ); |
| } |
| |
| void* QUARTZ_AllocMem( DWORD dwSize ) |
| { |
| return HeapAlloc( hDLLHeap, 0, dwSize ); |
| } |
| |
| void QUARTZ_FreeMem( void* pMem ) |
| { |
| HeapFree( hDLLHeap, 0, pMem ); |
| } |
| |
| void* QUARTZ_ReallocMem( void* pMem, DWORD dwSize ) |
| { |
| if ( pMem == NULL ) |
| return QUARTZ_AllocMem( dwSize ); |
| |
| return HeapReAlloc( hDLLHeap, 0, pMem, dwSize ); |
| } |
| |
| static |
| LPWSTR QUARTZ_strncpyAtoW( LPWSTR lpwstr, LPCSTR lpstr, INT wbuflen ) |
| { |
| INT len; |
| |
| len = MultiByteToWideChar( CP_ACP, 0, lpstr, -1, lpwstr, wbuflen ); |
| if ( len == 0 ) |
| *lpwstr = 0; |
| return lpwstr; |
| } |
| |
| |
| /************************************************************************/ |
| |
| static HRESULT WINAPI |
| IClassFactory_fnQueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) |
| { |
| ICOM_THIS(IClassFactoryImpl,iface); |
| |
| TRACE("(%p)->(%p,%p)\n",This,riid,ppobj); |
| if ( ( IsEqualGUID( &IID_IUnknown, riid ) ) || |
| ( IsEqualGUID( &IID_IClassFactory, riid ) ) ) |
| { |
| *ppobj = iface; |
| IClassFactory_AddRef(iface); |
| return S_OK; |
| } |
| |
| return E_NOINTERFACE; |
| } |
| |
| static ULONG WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface) |
| { |
| ICOM_THIS(IClassFactoryImpl,iface); |
| |
| TRACE("(%p)->()\n",This); |
| |
| return InterlockedExchangeAdd(&(This->ref),1) + 1; |
| } |
| |
| static ULONG WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface) |
| { |
| ICOM_THIS(IClassFactoryImpl,iface); |
| LONG ref; |
| |
| TRACE("(%p)->()\n",This); |
| ref = InterlockedExchangeAdd(&(This->ref),-1) - 1; |
| if ( ref > 0 ) |
| return (ULONG)ref; |
| |
| QUARTZ_FreeObj(This); |
| return 0; |
| } |
| |
| static HRESULT WINAPI IClassFactory_fnCreateInstance(LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj) |
| { |
| ICOM_THIS(IClassFactoryImpl,iface); |
| HRESULT hr; |
| IUnknown* punk; |
| |
| TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj); |
| |
| if ( ppobj == NULL ) |
| return E_POINTER; |
| if ( pOuter != NULL && !IsEqualGUID( riid, &IID_IUnknown ) ) |
| return CLASS_E_NOAGGREGATION; |
| |
| *ppobj = NULL; |
| |
| hr = (*This->pEntry->pCreateIUnk)(pOuter,(void**)&punk); |
| if ( hr != S_OK ) |
| return hr; |
| |
| hr = IUnknown_QueryInterface(punk,riid,ppobj); |
| IUnknown_Release(punk); |
| |
| return hr; |
| } |
| |
| static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface,BOOL dolock) |
| { |
| ICOM_THIS(IClassFactoryImpl,iface); |
| HRESULT hr; |
| |
| TRACE("(%p)->(%d)\n",This,dolock); |
| if (dolock) |
| hr = IClassFactory_AddRef(iface); |
| else |
| hr = IClassFactory_Release(iface); |
| |
| return hr; |
| } |
| |
| |
| |
| static HRESULT IClassFactory_Alloc( const CLSID* pclsid, void** ppobj ) |
| { |
| const QUARTZ_CLASSENTRY* pEntry; |
| IClassFactoryImpl* pImpl; |
| |
| TRACE( "(%s,%p)\n", debugstr_guid(pclsid), ppobj ); |
| |
| pEntry = QUARTZ_ClassList; |
| while ( pEntry->pclsid != NULL ) |
| { |
| if ( IsEqualGUID( pclsid, pEntry->pclsid ) ) |
| goto found; |
| pEntry ++; |
| } |
| |
| return CLASS_E_CLASSNOTAVAILABLE; |
| found: |
| pImpl = (IClassFactoryImpl*)QUARTZ_AllocObj( sizeof(IClassFactoryImpl) ); |
| if ( pImpl == NULL ) |
| return E_OUTOFMEMORY; |
| |
| TRACE( "allocated successfully.\n" ); |
| |
| ICOM_VTBL(pImpl) = &iclassfact; |
| pImpl->ref = 1; |
| pImpl->pEntry = pEntry; |
| |
| *ppobj = (void*)pImpl; |
| return S_OK; |
| } |
| |
| |
| /*********************************************************************** |
| * QUARTZ_InitProcess (internal) |
| */ |
| static BOOL QUARTZ_InitProcess( void ) |
| { |
| TRACE("()\n"); |
| |
| dwClassObjRef = 0; |
| hDLLHeap = (HANDLE)NULL; |
| InitializeCriticalSection( &csHeap ); |
| |
| hDLLHeap = HeapCreate( 0, 0x10000, 0 ); |
| if ( hDLLHeap == (HANDLE)NULL ) |
| return FALSE; |
| |
| return TRUE; |
| } |
| |
| /*********************************************************************** |
| * QUARTZ_UninitProcess (internal) |
| */ |
| static void QUARTZ_UninitProcess( void ) |
| { |
| TRACE("()\n"); |
| |
| if ( dwClassObjRef != 0 ) |
| ERR( "you must release some objects allocated from quartz.\n" ); |
| if ( hDLLHeap != (HANDLE)NULL ) |
| { |
| HeapDestroy( hDLLHeap ); |
| hDLLHeap = (HANDLE)NULL; |
| } |
| DeleteCriticalSection( &csHeap ); |
| } |
| |
| /*********************************************************************** |
| * QUARTZ_DllMain |
| */ |
| BOOL WINAPI QUARTZ_DllMain( |
| HINSTANCE hInstDLL, |
| DWORD fdwReason, |
| LPVOID lpvReserved ) |
| { |
| TRACE("(%08x,%08lx,%p)\n",hInstDLL,fdwReason,lpvReserved); |
| |
| switch ( fdwReason ) |
| { |
| case DLL_PROCESS_ATTACH: |
| if ( !QUARTZ_InitProcess() ) |
| return FALSE; |
| break; |
| case DLL_PROCESS_DETACH: |
| QUARTZ_UninitProcess(); |
| break; |
| case DLL_THREAD_ATTACH: |
| break; |
| case DLL_THREAD_DETACH: |
| break; |
| } |
| |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * DllCanUnloadNow (QUARTZ.@) |
| * |
| * RETURNS |
| * Success: S_OK |
| * Failure: S_FALSE |
| */ |
| HRESULT WINAPI QUARTZ_DllCanUnloadNow(void) |
| { |
| HRESULT hr; |
| |
| EnterCriticalSection( &csHeap ); |
| hr = ( dwClassObjRef == 0 ) ? S_OK : S_FALSE; |
| LeaveCriticalSection( &csHeap ); |
| |
| return hr; |
| } |
| |
| /*********************************************************************** |
| * DllGetClassObject (QUARTZ.@) |
| */ |
| HRESULT WINAPI QUARTZ_DllGetClassObject( |
| const CLSID* pclsid,const IID* piid,void** ppv) |
| { |
| *ppv = NULL; |
| if ( IsEqualCLSID( &IID_IUnknown, piid ) || |
| IsEqualCLSID( &IID_IClassFactory, piid ) ) |
| { |
| return IClassFactory_Alloc( pclsid, ppv ); |
| } |
| |
| return CLASS_E_CLASSNOTAVAILABLE; |
| } |
| |
| /*********************************************************************** |
| * DllRegisterServer (QUARTZ.@) |
| */ |
| |
| HRESULT WINAPI QUARTZ_DllRegisterServer( void ) |
| { |
| FIXME( "(): stub\n" ); |
| return E_FAIL; |
| } |
| |
| /*********************************************************************** |
| * DllUnregisterServer (QUARTZ.@) |
| */ |
| |
| HRESULT WINAPI QUARTZ_DllUnregisterServer( void ) |
| { |
| FIXME( "(): stub\n" ); |
| return E_FAIL; |
| } |
| |
| /**************************************************************************/ |
| /**************************************************************************/ |
| |
| /* FIXME - all string should be defined in the resource of quartz. */ |
| |
| static LPCSTR hresult_to_string( HRESULT hr ) |
| { |
| switch ( hr ) |
| { |
| #define ENTRY(x) case x: return (const char*)#x |
| /* some known codes */ |
| ENTRY(S_OK); |
| ENTRY(S_FALSE); |
| ENTRY(E_FAIL); |
| ENTRY(E_POINTER); |
| ENTRY(E_NOTIMPL); |
| ENTRY(E_NOINTERFACE); |
| ENTRY(E_OUTOFMEMORY); |
| ENTRY(CLASS_E_CLASSNOTAVAILABLE); |
| ENTRY(CLASS_E_NOAGGREGATION); |
| |
| /* vfwmsgs.h */ |
| ENTRY(VFW_S_NO_MORE_ITEMS); |
| ENTRY(VFW_E_BAD_KEY); |
| ENTRY(VFW_E_INVALIDMEDIATYPE); |
| ENTRY(VFW_E_INVALIDSUBTYPE); |
| ENTRY(VFW_E_NEED_OWNER); |
| ENTRY(VFW_E_ENUM_OUT_OF_SYNC); |
| ENTRY(VFW_E_ALREADY_CONNECTED); |
| ENTRY(VFW_E_FILTER_ACTIVE); |
| ENTRY(VFW_E_NO_TYPES); |
| ENTRY(VFW_E_NO_ACCEPTABLE_TYPES); |
| ENTRY(VFW_E_INVALID_DIRECTION); |
| ENTRY(VFW_E_NOT_CONNECTED); |
| ENTRY(VFW_E_NO_ALLOCATOR); |
| ENTRY(VFW_E_RUNTIME_ERROR); |
| ENTRY(VFW_E_BUFFER_NOTSET); |
| ENTRY(VFW_E_BUFFER_OVERFLOW); |
| ENTRY(VFW_E_BADALIGN); |
| ENTRY(VFW_E_ALREADY_COMMITTED); |
| ENTRY(VFW_E_BUFFERS_OUTSTANDING); |
| ENTRY(VFW_E_NOT_COMMITTED); |
| ENTRY(VFW_E_SIZENOTSET); |
| ENTRY(VFW_E_NO_CLOCK); |
| ENTRY(VFW_E_NO_SINK); |
| ENTRY(VFW_E_NO_INTERFACE); |
| ENTRY(VFW_E_NOT_FOUND); |
| ENTRY(VFW_E_CANNOT_CONNECT); |
| ENTRY(VFW_E_CANNOT_RENDER); |
| ENTRY(VFW_E_CHANGING_FORMAT); |
| ENTRY(VFW_E_NO_COLOR_KEY_SET); |
| ENTRY(VFW_E_NOT_OVERLAY_CONNECTION); |
| ENTRY(VFW_E_NOT_SAMPLE_CONNECTION); |
| ENTRY(VFW_E_PALETTE_SET); |
| ENTRY(VFW_E_COLOR_KEY_SET); |
| ENTRY(VFW_E_NO_COLOR_KEY_FOUND); |
| ENTRY(VFW_E_NO_PALETTE_AVAILABLE); |
| ENTRY(VFW_E_NO_DISPLAY_PALETTE); |
| ENTRY(VFW_E_TOO_MANY_COLORS); |
| ENTRY(VFW_E_STATE_CHANGED); |
| ENTRY(VFW_E_NOT_STOPPED); |
| ENTRY(VFW_E_NOT_PAUSED); |
| ENTRY(VFW_E_NOT_RUNNING); |
| ENTRY(VFW_E_WRONG_STATE); |
| ENTRY(VFW_E_START_TIME_AFTER_END); |
| ENTRY(VFW_E_INVALID_RECT); |
| ENTRY(VFW_E_TYPE_NOT_ACCEPTED); |
| ENTRY(VFW_E_SAMPLE_REJECTED); |
| ENTRY(VFW_E_SAMPLE_REJECTED_EOS); |
| ENTRY(VFW_S_DUPLICATE_NAME); |
| ENTRY(VFW_E_DUPLICATE_NAME); |
| ENTRY(VFW_E_TIMEOUT); |
| ENTRY(VFW_E_INVALID_FILE_FORMAT); |
| ENTRY(VFW_E_ENUM_OUT_OF_RANGE); |
| ENTRY(VFW_E_CIRCULAR_GRAPH); |
| ENTRY(VFW_E_NOT_ALLOWED_TO_SAVE); |
| ENTRY(VFW_E_TIME_ALREADY_PASSED); |
| ENTRY(VFW_E_ALREADY_CANCELLED); |
| ENTRY(VFW_E_CORRUPT_GRAPH_FILE); |
| ENTRY(VFW_E_ADVISE_ALREADY_SET); |
| ENTRY(VFW_S_STATE_INTERMEDIATE); |
| ENTRY(VFW_E_NO_MODEX_AVAILABLE); |
| ENTRY(VFW_E_NO_ADVISE_SET); |
| ENTRY(VFW_E_NO_FULLSCREEN); |
| ENTRY(VFW_E_IN_FULLSCREEN_MODE); |
| ENTRY(VFW_E_UNKNOWN_FILE_TYPE); |
| ENTRY(VFW_E_CANNOT_LOAD_SOURCE_FILTER); |
| ENTRY(VFW_S_PARTIAL_RENDER); |
| ENTRY(VFW_E_FILE_TOO_SHORT); |
| ENTRY(VFW_E_INVALID_FILE_VERSION); |
| ENTRY(VFW_S_SOME_DATA_IGNORED); |
| ENTRY(VFW_S_CONNECTIONS_DEFERRED); |
| ENTRY(VFW_E_INVALID_CLSID); |
| ENTRY(VFW_E_INVALID_MEDIA_TYPE); |
| ENTRY(VFW_E_SAMPLE_TIME_NOT_SET); |
| ENTRY(VFW_S_RESOURCE_NOT_NEEDED); |
| ENTRY(VFW_E_MEDIA_TIME_NOT_SET); |
| ENTRY(VFW_E_NO_TIME_FORMAT_SET); |
| ENTRY(VFW_E_MONO_AUDIO_HW); |
| ENTRY(VFW_S_MEDIA_TYPE_IGNORED); |
| ENTRY(VFW_E_NO_DECOMPRESSOR); |
| ENTRY(VFW_E_NO_AUDIO_HARDWARE); |
| ENTRY(VFW_S_VIDEO_NOT_RENDERED); |
| ENTRY(VFW_S_AUDIO_NOT_RENDERED); |
| ENTRY(VFW_E_RPZA); |
| ENTRY(VFW_S_RPZA); |
| ENTRY(VFW_E_PROCESSOR_NOT_SUITABLE); |
| ENTRY(VFW_E_UNSUPPORTED_AUDIO); |
| ENTRY(VFW_E_UNSUPPORTED_VIDEO); |
| ENTRY(VFW_E_MPEG_NOT_CONSTRAINED); |
| ENTRY(VFW_E_NOT_IN_GRAPH); |
| ENTRY(VFW_S_ESTIMATED); |
| ENTRY(VFW_E_NO_TIME_FORMAT); |
| ENTRY(VFW_E_READ_ONLY); |
| ENTRY(VFW_S_RESERVED); |
| ENTRY(VFW_E_BUFFER_UNDERFLOW); |
| ENTRY(VFW_E_UNSUPPORTED_STREAM); |
| ENTRY(VFW_E_NO_TRANSPORT); |
| ENTRY(VFW_S_STREAM_OFF); |
| ENTRY(VFW_S_CANT_CUE); |
| ENTRY(VFW_E_BAD_VIDEOCD); |
| ENTRY(VFW_S_NO_STOP_TIME); |
| ENTRY(VFW_E_OUT_OF_VIDEO_MEMORY); |
| ENTRY(VFW_E_VP_NEGOTIATION_FAILED); |
| ENTRY(VFW_E_DDRAW_CAPS_NOT_SUITABLE); |
| ENTRY(VFW_E_NO_VP_HARDWARE); |
| ENTRY(VFW_E_NO_CAPTURE_HARDWARE); |
| ENTRY(VFW_E_DVD_OPERATION_INHIBITED); |
| ENTRY(VFW_E_DVD_INVALIDDOMAIN); |
| ENTRY(VFW_E_DVD_NO_BUTTON); |
| ENTRY(VFW_E_DVD_GRAPHNOTREADY); |
| ENTRY(VFW_E_DVD_RENDERFAIL); |
| ENTRY(VFW_E_DVD_DECNOTENOUGH); |
| ENTRY(VFW_E_DDRAW_VERSION_NOT_SUITABLE); |
| ENTRY(VFW_E_COPYPROT_FAILED); |
| ENTRY(VFW_S_NOPREVIEWPIN); |
| ENTRY(VFW_E_TIME_EXPIRED); |
| ENTRY(VFW_S_DVD_NON_ONE_SEQUENTIAL); |
| ENTRY(VFW_E_DVD_WRONG_SPEED); |
| ENTRY(VFW_E_DVD_MENU_DOES_NOT_EXIST); |
| ENTRY(VFW_E_DVD_CMD_CANCELLED); |
| ENTRY(VFW_E_DVD_STATE_WRONG_VERSION); |
| ENTRY(VFW_E_DVD_STATE_CORRUPT); |
| ENTRY(VFW_E_DVD_STATE_WRONG_DISC); |
| ENTRY(VFW_E_DVD_INCOMPATIBLE_REGION); |
| ENTRY(VFW_E_DVD_NO_ATTRIBUTES); |
| ENTRY(VFW_E_DVD_NO_GOUP_PGC); |
| ENTRY(VFW_E_DVD_LOW_PARENTAL_LEVEL); |
| ENTRY(VFW_E_DVD_NOT_IN_KARAOKE_MODE); |
| ENTRY(VFW_S_DVD_CHANNEL_CONTENTS_NOT_AVAILABLE); |
| ENTRY(VFW_S_DVD_NOT_ACCURATE); |
| ENTRY(VFW_E_FRAME_STEP_UNSUPPORTED); |
| ENTRY(VFW_E_DVD_STREAM_DISABLED); |
| ENTRY(VFW_E_DVD_TITLE_UNKNOWN); |
| ENTRY(VFW_E_DVD_INVALID_DISC); |
| ENTRY(VFW_E_DVD_NO_RESUME_INFORMATION); |
| ENTRY(VFW_E_PIN_ALREADY_BLOCKED_ON_THIS_THREAD); |
| ENTRY(VFW_E_PIN_ALREADY_BLOCKED); |
| ENTRY(VFW_E_CERTIFICATION_FAILURE); |
| #undef ENTRY |
| } |
| |
| return NULL; |
| } |
| |
| /*********************************************************************** |
| * AMGetErrorTextA (quartz.@) |
| */ |
| DWORD WINAPI AMGetErrorTextA(HRESULT hr, LPSTR pszbuf, DWORD dwBufLen) |
| { |
| LPCSTR lpszRes; |
| DWORD len; |
| |
| lpszRes = hresult_to_string( hr ); |
| if ( lpszRes == NULL ) |
| return 0; |
| len = (DWORD)(strlen(lpszRes)+1); |
| if ( len > dwBufLen ) |
| return 0; |
| |
| memcpy( pszbuf, lpszRes, len ); |
| return len; |
| } |
| |
| /*********************************************************************** |
| * AMGetErrorTextW (quartz.@) |
| */ |
| DWORD WINAPI AMGetErrorTextW(HRESULT hr, LPWSTR pwszbuf, DWORD dwBufLen) |
| { |
| CHAR szBuf[MAX_ERROR_TEXT_LEN+1]; |
| DWORD dwLen; |
| |
| dwLen = AMGetErrorTextA(hr,szBuf,MAX_ERROR_TEXT_LEN); |
| if ( dwLen == 0 ) |
| return 0; |
| szBuf[dwLen] = 0; |
| |
| QUARTZ_strncpyAtoW( pwszbuf, szBuf, dwBufLen ); |
| |
| return lstrlenW( pwszbuf ); |
| } |