/*************************************************************************** * * Copyright (C) 1995,1996 Microsoft Corporation. All Rights Reserved. * * File: dsprvobj.c * Content: DirectSound Private Object wrapper functions. * History: * Date By Reason * ==== == ====== * 02/12/98 dereks Created. * 12/16/99 rodtoll Added support for new funcs from dsound team on private * interface for getting process dsound object list * 01/08/2001 rodtoll WINBUG #256541 Pseudo: Loss of functionality: Voice Wizrd can't be launched. * ***************************************************************************/ #include "dxvutilspch.h" #define MAX_OBJECTS 20 /*************************************************************************** * * DirectSoundPrivateCreate * * Description: * Creates and initializes a DirectSoundPrivate object. * * Arguments: * LPKSPROPERTYSET * [out]: receives IKsPropertySet interface to the * object. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT DirectSoundPrivateCreate ( LPKSPROPERTYSET * ppKsPropertySet ) { typedef HRESULT (STDAPICALLTYPE *LPFNDLLGETCLASSOBJECT)(REFCLSID, REFIID, LPVOID *); HINSTANCE hLibDsound = NULL; LPFNGETCLASSOBJECT pfnDllGetClassObject = NULL; LPCLASSFACTORY pClassFactory = NULL; LPKSPROPERTYSET pKsPropertySet = NULL; HRESULT hr = DS_OK; // Get dsound.dll's instance handle. The dll must already be loaded at this // point. hLibDsound = GetModuleHandle ( TEXT("dsound.dll") ); if(!hLibDsound) { hr = DSERR_GENERIC; } // Find DllGetClassObject if(SUCCEEDED(hr)) { pfnDllGetClassObject = (LPFNDLLGETCLASSOBJECT) GetProcAddress ( hLibDsound, "DllGetClassObject" ); if(!pfnDllGetClassObject) { hr = DSERR_GENERIC; } } // Create a class factory object if(SUCCEEDED(hr)) { hr = pfnDllGetClassObject ( CLSID_DirectSoundPrivate, IID_IClassFactory, (LPVOID *)&pClassFactory ); } // Create the DirectSoundPrivate object and query for an IKsPropertySet // interface if(SUCCEEDED(hr)) { hr = pClassFactory->CreateInstance ( NULL, IID_IKsPropertySet, (LPVOID *)&pKsPropertySet ); } // Release the class factory if(pClassFactory) { pClassFactory->Release(); } // Success if(SUCCEEDED(hr)) { *ppKsPropertySet = pKsPropertySet; } return hr; } /*************************************************************************** * * PrvGetMixerSrcQuality * * Description: * Gets the mixer SRC quality for a given DirectSound device. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device GUID. * DIRECTSOUNDMIXER_SRCQUALITY * [out]: receives mixer SRC quality. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetMixerSrcQuality ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, DIRECTSOUNDMIXER_SRCQUALITY * pSrcQuality ) { DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY_DATA Data; HRESULT hr; Data.DeviceId = guidDeviceId; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundMixer, DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY, NULL, 0, &Data, sizeof(Data), NULL ); if(SUCCEEDED(hr)) { *pSrcQuality = Data.Quality; } return hr; } /*************************************************************************** * * PrvSetMixerSrcQuality * * Description: * Sets the mixer SRC quality for a given DirectSound device. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device GUID. * DIRECTSOUNDMIXER_SRCQUALITY [in]: mixer SRC quality. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvSetMixerSrcQuality ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, DIRECTSOUNDMIXER_SRCQUALITY SrcQuality ) { DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY_DATA Data; HRESULT hr; Data.DeviceId = guidDeviceId; Data.Quality = SrcQuality; hr = pKsPropertySet->Set ( DSPROPSETID_DirectSoundMixer, DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY, NULL, 0, &Data, sizeof(Data) ); return hr; } /*************************************************************************** * * PrvGetMixerAcceleration * * Description: * Gets the mixer acceleration flags for a given DirectSound device. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device GUID. * LPDWORD [out]: receives acceleration flags. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetMixerAcceleration ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, LPDWORD pdwAcceleration ) { DSPROPERTY_DIRECTSOUNDMIXER_ACCELERATION_DATA Data; HRESULT hr; Data.DeviceId = guidDeviceId; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundMixer, DSPROPERTY_DIRECTSOUNDMIXER_ACCELERATION, NULL, 0, &Data, sizeof(Data), NULL ); if(SUCCEEDED(hr)) { *pdwAcceleration = Data.Flags; } return hr; } /*************************************************************************** * * PrvSetMixerAcceleration * * Description: * Sets the mixer acceleration flags for a given DirectSound device. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device GUID. * DWORD [in]: acceleration flags. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvSetMixerAcceleration ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, DWORD dwAcceleration ) { DSPROPERTY_DIRECTSOUNDMIXER_ACCELERATION_DATA Data; HRESULT hr; Data.DeviceId = guidDeviceId; Data.Flags = dwAcceleration; hr = pKsPropertySet->Set ( DSPROPSETID_DirectSoundMixer, DSPROPERTY_DIRECTSOUNDMIXER_ACCELERATION, NULL, 0, &Data, sizeof(Data) ); return hr; } /*************************************************************************** * * PrvGetDevicePresence * * Description: * Determines whether a device is enabled. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device GUID. * LPBOOL [out]: receives TRUE if the device is enabled. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetDevicePresence ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, LPBOOL pfEnabled ) { DSPROPERTY_DIRECTSOUNDDEVICE_PRESENCE_DATA Data; HRESULT hr; Data.DeviceId = guidDeviceId; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDevice, DSPROPERTY_DIRECTSOUNDDEVICE_PRESENCE, NULL, 0, &Data, sizeof(Data), NULL ); if(SUCCEEDED(hr)) { *pfEnabled = Data.Present; } return hr; } /*************************************************************************** * * PrvSetDevicePresence * * Description: * Sets whether a device is enabled. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device GUID. * BOOL [in]: TRUE if the device is enabled. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvSetDevicePresence ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, BOOL fEnabled ) { DSPROPERTY_DIRECTSOUNDDEVICE_PRESENCE_DATA Data; HRESULT hr; Data.DeviceId = guidDeviceId; Data.Present = fEnabled; hr = pKsPropertySet->Set ( DSPROPSETID_DirectSoundDevice, DSPROPERTY_DIRECTSOUNDDEVICE_PRESENCE, NULL, 0, &Data, sizeof(Data) ); return hr; } /*************************************************************************** * * PrvGetWaveDeviceMapping * * Description: * Gets the DirectSound device id (if any) for a given waveIn or * waveOut device description. This is the description given by * waveIn/OutGetDevCaps (szPname). * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * LPCSTR [in]: wave device description. * BOOL [in]: TRUE if the device description refers to a waveIn device. * LPGUID [out]: receives DirectSound device GUID. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetWaveDeviceMapping ( LPKSPROPERTYSET pKsPropertySet, LPCTSTR pszWaveDevice, BOOL fCapture, LPGUID pguidDeviceId ) { DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_DATA Data; HRESULT hr; Data.DeviceName = (LPTSTR)pszWaveDevice; Data.DataFlow = fCapture ? DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE : DIRECTSOUNDDEVICE_DATAFLOW_RENDER; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDevice, DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING, NULL, 0, &Data, sizeof(Data), NULL ); if(SUCCEEDED(hr)) { *pguidDeviceId = Data.DeviceId; } return hr; } /*************************************************************************** * * PrvGetWaveDeviceMappingW (Unicode) * * Description: * Gets the DirectSound device id (if any) for a given waveIn or * waveOut device description. This is the description given by * waveIn/OutGetDevCaps (szPname). * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * LPWCSTR [in]: wave device description. * BOOL [in]: TRUE if the device description refers to a waveIn device. * LPGUID [out]: receives DirectSound device GUID. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetWaveDeviceMappingW ( LPKSPROPERTYSET pKsPropertySet, LPWSTR pwszWaveDevice, BOOL fCapture, LPGUID pguidDeviceId ) { DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_W_DATA Data; HRESULT hr; Data.DeviceName = (LPWSTR)pwszWaveDevice; Data.DataFlow = fCapture ? DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE : DIRECTSOUNDDEVICE_DATAFLOW_RENDER; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDevice, DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_W, NULL, 0, &Data, sizeof(Data), NULL ); if(SUCCEEDED(hr)) { *pguidDeviceId = Data.DeviceId; } return hr; } /*************************************************************************** * * PrvGetDeviceDescription * * Description: * Gets the extended description for a given DirectSound device. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device id. * PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA [out]: receives * description. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetDeviceDescription ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA *ppData ) { PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA pData = NULL; ULONG cbData; DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA Basic; HRESULT hr; Basic.DeviceId = guidDeviceId; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDevice, DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION, NULL, 0, &Basic, sizeof(Basic), &cbData ); if(SUCCEEDED(hr)) { pData = (PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA)new BYTE [cbData]; if(!pData) { hr = DSERR_OUTOFMEMORY; } } if(SUCCEEDED(hr)) { pData->DeviceId = guidDeviceId; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDevice, DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION, NULL, 0, pData, cbData, NULL ); } if(SUCCEEDED(hr)) { *ppData = pData; } else if(pData) { delete[] pData; } return hr; } /*************************************************************************** * * PrvEnumerateDevices * * Description: * Enumerates all DirectSound devices. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * LPFNDIRECTSOUNDDEVICEENUMERATECALLBACK [in]: pointer to the callback * function. * LPVOID [in]: context argument to pass to the callback function. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvEnumerateDevices ( LPKSPROPERTYSET pKsPropertySet, LPFNDIRECTSOUNDDEVICEENUMERATECALLBACK pfnCallback, LPVOID pvContext ) { DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE_DATA Data; HRESULT hr; Data.Callback = pfnCallback; Data.Context = pvContext; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDevice, DSPROPERTY_DIRECTSOUNDDEVICE_ENUMERATE, NULL, 0, &Data, sizeof(Data), NULL ); return hr; } /*************************************************************************** * * PrvGetBasicAcceleration * * Description: * Gets basic acceleration flags for a given DirectSound device. This * is the accleration level that the multimedia control panel uses. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device GUID. * DIRECTSOUNDBASICACCELERATION_LEVEL * [out]: receives basic * acceleration level. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetBasicAcceleration ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, DIRECTSOUNDBASICACCELERATION_LEVEL * pLevel ) { DSPROPERTY_DIRECTSOUNDBASICACCELERATION_ACCELERATION_DATA Data; HRESULT hr; Data.DeviceId = guidDeviceId; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundBasicAcceleration, DSPROPERTY_DIRECTSOUNDBASICACCELERATION_ACCELERATION, NULL, 0, &Data, sizeof(Data), NULL ); if(SUCCEEDED(hr)) { *pLevel = Data.Level; } return hr; } /*************************************************************************** * * PrvSetBasicAcceleration * * Description: * Sets basic acceleration flags for a given DirectSound device. This * is the accleration level that the multimedia control panel uses. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device GUID. * DIRECTSOUNDBASICACCELERATION_LEVEL [in]: basic acceleration level. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvSetBasicAcceleration ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, DIRECTSOUNDBASICACCELERATION_LEVEL Level ) { DSPROPERTY_DIRECTSOUNDBASICACCELERATION_ACCELERATION_DATA Data; HRESULT hr; Data.DeviceId = guidDeviceId; Data.Level = Level; hr = pKsPropertySet->Set ( DSPROPSETID_DirectSoundBasicAcceleration, DSPROPERTY_DIRECTSOUNDBASICACCELERATION_ACCELERATION, NULL, 0, &Data, sizeof(Data) ); return hr; } /*************************************************************************** * * PrvGetDebugInformation * * Description: * Gets the current DirectSound debug settings. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * LPDWORD [in]: receives DPF flags. * PULONG [out]: receives DPF level. * PULONG [out]: receives break level. * LPSTR [out]: receives log file name. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetDebugInformation ( LPKSPROPERTYSET pKsPropertySet, LPDWORD pdwFlags, PULONG pulDpfLevel, PULONG pulBreakLevel, LPTSTR pszLogFile ) { DSPROPERTY_DIRECTSOUNDDEBUG_DPFINFO_DATA Data; HRESULT hr; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDebug, DSPROPERTY_DIRECTSOUNDDEBUG_DPFINFO, NULL, 0, &Data, sizeof(Data), NULL ); if(SUCCEEDED(hr) && pdwFlags) { *pdwFlags = Data.Flags; } if(SUCCEEDED(hr) && pulDpfLevel) { *pulDpfLevel = Data.DpfLevel; } if(SUCCEEDED(hr) && pulBreakLevel) { *pulBreakLevel = Data.BreakLevel; } if(SUCCEEDED(hr) && pszLogFile) { lstrcpy ( pszLogFile, Data.LogFile ); } return hr; } /*************************************************************************** * * PrvSetDebugInformation * * Description: * Sets the current DirectSound debug settings. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * DWORD [in]: DPF flags. * ULONG [in]: DPF level. * ULONG [in]: break level. * LPCSTR [in]: log file name. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvSetDebugInformation ( LPKSPROPERTYSET pKsPropertySet, DWORD dwFlags, ULONG ulDpfLevel, ULONG ulBreakLevel, LPCTSTR pszLogFile ) { DSPROPERTY_DIRECTSOUNDDEBUG_DPFINFO_DATA Data; HRESULT hr; Data.Flags = dwFlags; Data.DpfLevel = ulDpfLevel; Data.BreakLevel = ulBreakLevel; lstrcpy ( Data.LogFile, pszLogFile ); hr = pKsPropertySet->Set ( DSPROPSETID_DirectSoundDebug, DSPROPERTY_DIRECTSOUNDDEBUG_DPFINFO, NULL, 0, &Data, sizeof(Data) ); return hr; } /*************************************************************************** * * PrvGetPersistentData * * Description: * Gets a registry value stored under the DirectSound subkey of a * specific hardware device. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device id. * LPCSTR [in]: subkey path. * LPCSTR [in]: value name. * LPDWORD [in/out]: receives registry data type. * LPVOID [out]: data buffer. * LPDWORD [in/out]: size of above buffer. On entry, this argument is * filled with the maximum size of the data buffer. * On exit, this argument is filled with the required * size. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetPersistentData ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, LPCTSTR pszSubkey, LPCTSTR pszValue, LPDWORD pdwRegType, LPVOID pvData, LPDWORD pcbData ) { PDSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA_DATA pPersist; ULONG cbPersist; HRESULT hr; cbPersist = sizeof(*pPersist) + *pcbData; pPersist = (PDSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA_DATA) LocalAlloc ( LPTR, cbPersist ); if(pPersist) { pPersist->DeviceId = guidDeviceId; pPersist->SubKeyName = (LPTSTR)pszSubkey; pPersist->ValueName = (LPTSTR)pszValue; if(pdwRegType) { pPersist->RegistryDataType = *pdwRegType; } hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundPersistentData, DSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA, NULL, 0, pPersist, cbPersist, &cbPersist ); } else { hr = DSERR_OUTOFMEMORY; } if(SUCCEEDED(hr)) { CopyMemory ( pvData, pPersist + 1, *pcbData ); } *pcbData = cbPersist - sizeof(*pPersist); if(pPersist && pdwRegType) { *pdwRegType = pPersist->RegistryDataType; } if(pPersist) { LocalFree(pPersist); } return hr; } /*************************************************************************** * * PrvSetPersistentData * * Description: * Sets a registry value stored under the DirectSound subkey of a * specific hardware device. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * REFGUID [in]: DirectSound device id. * LPCSTR [in]: subkey path. * LPCSTR [in]: value name. * DWORD [in]: registry data type. * LPVOID [out]: data buffer. * DWORD [in]: size of above buffer. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvSetPersistentData ( LPKSPROPERTYSET pKsPropertySet, REFGUID guidDeviceId, LPCTSTR pszSubkey, LPCTSTR pszValue, DWORD dwRegType, LPVOID pvData, DWORD cbData ) { PDSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA_DATA pPersist; ULONG cbPersist; HRESULT hr; cbPersist = sizeof(*pPersist) + cbData; pPersist = (PDSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA_DATA) LocalAlloc ( LPTR, cbPersist ); if(pPersist) { pPersist->DeviceId = guidDeviceId; pPersist->SubKeyName = (LPTSTR)pszSubkey; pPersist->ValueName = (LPTSTR)pszValue; pPersist->RegistryDataType = dwRegType; CopyMemory ( pPersist + 1, pvData, cbData ); hr = pKsPropertySet->Set ( DSPROPSETID_DirectSoundPersistentData, DSPROPERTY_DIRECTSOUNDPERSISTENTDATA_PERSISTDATA, NULL, 0, pPersist, cbPersist ); } else { hr = DSERR_OUTOFMEMORY; } if(pPersist) { LocalFree(pPersist); } return hr; } /*************************************************************************** * * PrvTranslateErrorCode * * Description: * Translates an error code to a string representation. * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * HRESULT [in]: result code. * PDSPROPERTY_DIRECTSOUNDDEBUG_TRANSLATEERRORCODE_DATA * [out]: * receives error code data. The caller is responsible for freeing * this buffer. * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvTranslateResultCode ( LPKSPROPERTYSET pKsPropertySet, HRESULT hrResult, PDSPROPERTY_DIRECTSOUNDDEBUG_TRANSLATERESULTCODE_DATA * ppData ) { PDSPROPERTY_DIRECTSOUNDDEBUG_TRANSLATERESULTCODE_DATA pData = NULL; DSPROPERTY_DIRECTSOUNDDEBUG_TRANSLATERESULTCODE_DATA Basic; ULONG cbData; HRESULT hr; Basic.ResultCode = hrResult; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDebug, DSPROPERTY_DIRECTSOUNDDEBUG_TRANSLATERESULTCODE, NULL, 0, &Basic, sizeof(Basic), &cbData ); if(SUCCEEDED(hr)) { pData = (PDSPROPERTY_DIRECTSOUNDDEBUG_TRANSLATERESULTCODE_DATA) LocalAlloc ( LPTR, cbData ); if(!pData) { hr = DSERR_OUTOFMEMORY; } } if(SUCCEEDED(hr)) { pData->ResultCode = hrResult; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSoundDebug, DSPROPERTY_DIRECTSOUNDDEBUG_TRANSLATERESULTCODE, NULL, 0, pData, cbData, NULL ); } if(SUCCEEDED(hr)) { *ppData = pData; } else if(pData) { LocalFree ( pData ); } return hr; } /*************************************************************************** * * PrvGetDirectSoundObjects * * Description: * Gets the list of DirectSound objects in the current process * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * GUID guiDevice [in]: Device to get list for, or GUID_NULL for all. * DSPROPERTY_DIRECTSOUND_OBJECTS_DATA [in/out]: Pointer to place * newly allocated memory containing list. * Free the memory with a delete [] * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetDirectSoundObjects ( LPKSPROPERTYSET pKsPropertySet, GUID guidDevice, DSPROPERTY_DIRECTSOUND_OBJECTS_DATA **pDSObjects ) { HRESULT hr; ULONG ulSize; DSPROPERTY_DIRECTSOUND_OBJECTS_DATA* pDsObjList; DWORD dwNumObjects; *pDSObjects = NULL; pDsObjList = (DSPROPERTY_DIRECTSOUND_OBJECTS_DATA *) new DSPROPERTY_DIRECTSOUND_OBJECTS_DATA; if( pDsObjList == NULL ) { return E_OUTOFMEMORY; } memset( pDsObjList, 0x00, sizeof( DSPROPERTY_DIRECTSOUND_OBJECTS_DATA ) ); pDsObjList->DeviceId = guidDevice; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSound, DSPROPERTY_DIRECTSOUND_OBJECTS, NULL, 0, pDsObjList, sizeof( DSPROPERTY_DIRECTSOUND_OBJECTS_DATA ), NULL ); dwNumObjects = pDsObjList->Count; if(SUCCEEDED(hr)) { if( dwNumObjects > 0 ) { delete pDsObjList; pDsObjList = NULL; ulSize = sizeof(DSPROPERTY_DIRECTSOUND_OBJECTS_DATA) + (dwNumObjects * sizeof(DIRECTSOUND_INFO)); pDsObjList = (DSPROPERTY_DIRECTSOUND_OBJECTS_DATA *) new BYTE[ulSize]; if( pDsObjList == NULL ) { return E_OUTOFMEMORY; } memset( pDsObjList, 0x00, sizeof( DSPROPERTY_DIRECTSOUND_OBJECTS_DATA ) ); pDsObjList->DeviceId = guidDevice; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSound, DSPROPERTY_DIRECTSOUND_OBJECTS, NULL, 0, pDsObjList, ulSize, NULL ); if( FAILED( hr ) ) { delete [] pDsObjList; return hr; } } *pDSObjects = pDsObjList; } else { delete pDsObjList; pDsObjList = NULL; *pDSObjects = NULL; } return hr; } /*************************************************************************** * * PrvGetDirectSoundCaptureObjects * * Description: * Gets the list of DirectSoundCapture objects in the current process * * Arguments: * LPKSPROPERTYSET [in]: IKsPropertySet interface to the * DirectSoundPrivate object. * GUID guiDevice [in]: Device to get list for, or GUID_NULL for all. * DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA [in/out]: Pointer to place * newly allocated memory containing list. * Free the memory with a delete [] * * Returns: * HRESULT: DirectSound/COM result code. * ***************************************************************************/ HRESULT PrvGetDirectSoundCaptureObjects ( LPKSPROPERTYSET pKsPropertySet, GUID guidDevice, DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA **pDSObjects ) { HRESULT hr; ULONG ulSize; DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA* pDsObjList; DWORD dwNumObjects; *pDSObjects = NULL; pDsObjList = (DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA *) new DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA; if( pDsObjList == NULL ) { return E_OUTOFMEMORY; } memset( pDsObjList, 0x00, sizeof( DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA ) ); pDsObjList->DeviceId = guidDevice; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSound, DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS, NULL, 0, pDsObjList, sizeof( DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA ), NULL ); dwNumObjects = pDsObjList->Count; if(SUCCEEDED(hr)) { if( dwNumObjects > 0 ) { delete [] pDsObjList; pDsObjList = NULL; ulSize = sizeof(DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA) + (dwNumObjects * sizeof(DIRECTSOUNDCAPTURE_INFO)); pDsObjList = (DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA *) new BYTE[ulSize]; if( pDsObjList == NULL ) { return E_OUTOFMEMORY; } memset( pDsObjList, 0x00, sizeof( DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS_DATA ) ); pDsObjList->DeviceId = guidDevice; hr = pKsPropertySet->Get ( DSPROPSETID_DirectSound, DSPROPERTY_DIRECTSOUNDCAPTURE_OBJECTS, NULL, 0, pDsObjList, ulSize, NULL ); if( FAILED( hr ) ) { delete [] pDsObjList; return hr; } } *pDSObjects = pDsObjList; } else { delete pDsObjList; *pDSObjects = NULL; } return hr; }