1042 lines
27 KiB
C++
1042 lines
27 KiB
C++
/***************************************************************************
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*
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* Copyright (C) 1995,1996 Microsoft Corporation. All Rights Reserved.
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*
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* File: dsprvobj.c
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* Content: DirectSound Private Object wrapper functions.
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* History:
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* Date By Reason
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* ==== == ======
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* 02/12/98 dereks Created.
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*
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***************************************************************************/
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#define DIRECTSOUND_VERSION 0x0600
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// We'll ask for what we need, thank you.
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif // WIN32_LEAN_AND_MEAN
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// Public includes
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#include <windows.h>
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#include <mmsystem.h>
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#include <dsound.h>
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#include "dsprv.h"
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// Private includes
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#include "dsprvobj.h"
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/***************************************************************************
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*
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* DirectSoundPrivateCreate
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*
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* Description:
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* Creates and initializes a DirectSoundPrivate object.
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*
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* Arguments:
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* LPKSPROPERTYSET * [out]: receives IKsPropertySet interface to the
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* object.
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*
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* Returns:
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* HRESULT: DirectSound/COM result code.
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*
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***************************************************************************/
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HRESULT DirectSoundPrivateCreate
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(
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LPKSPROPERTYSET * ppKsPropertySet
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)
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{
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typedef HRESULT (STDAPICALLTYPE *LPFNDLLGETCLASSOBJECT)(REFCLSID, REFIID, LPVOID *);
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HINSTANCE hLibDsound = NULL;
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LPFNGETCLASSOBJECT pfnDllGetClassObject = NULL;
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LPCLASSFACTORY pClassFactory = NULL;
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LPKSPROPERTYSET pKsPropertySet = NULL;
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HRESULT hr = DS_OK;
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// Get dsound.dll's instance handle. The dll must already be loaded at this
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// point.
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hLibDsound =
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GetModuleHandle
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(
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TEXT("dsound.dll")
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);
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if(!hLibDsound)
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{
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hr = DSERR_GENERIC;
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}
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// Find DllGetClassObject
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if(SUCCEEDED(hr))
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{
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pfnDllGetClassObject = (LPFNDLLGETCLASSOBJECT)
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GetProcAddress
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(
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hLibDsound,
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"DllGetClassObject"
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);
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if(!pfnDllGetClassObject)
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{
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hr = DSERR_GENERIC;
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}
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}
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// Create a class factory object
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if(SUCCEEDED(hr))
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{
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hr =
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pfnDllGetClassObject
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(
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CLSID_DirectSoundPrivate,
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IID_IClassFactory,
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(LPVOID *)&pClassFactory
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);
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}
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// Create the DirectSoundPrivate object and query for an IKsPropertySet
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// interface
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if(SUCCEEDED(hr))
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{
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hr =
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pClassFactory->CreateInstance
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(
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NULL,
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IID_IKsPropertySet,
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(LPVOID *)&pKsPropertySet
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);
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}
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// Release the class factory
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if(pClassFactory)
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{
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pClassFactory->Release();
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}
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// Success
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if(SUCCEEDED(hr))
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{
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*ppKsPropertySet = pKsPropertySet;
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}
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return hr;
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}
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/***************************************************************************
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*
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* PrvGetMixerSrcQuality
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*
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* Description:
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* Gets the mixer SRC quality for a given DirectSound device.
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*
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* Arguments:
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* LPKSPROPERTYSET [in]: IKsPropertySet interface to the
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* DirectSoundPrivate object.
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* REFGUID [in]: DirectSound device GUID.
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* DIRECTSOUNDMIXER_SRCQUALITY * [out]: receives mixer SRC quality.
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*
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* Returns:
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* HRESULT: DirectSound/COM result code.
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*
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***************************************************************************/
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HRESULT PrvGetMixerSrcQuality
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(
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LPKSPROPERTYSET pKsPropertySet,
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REFGUID guidDeviceId,
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DIRECTSOUNDMIXER_SRCQUALITY * pSrcQuality
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)
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{
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DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY_DATA Data;
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HRESULT hr;
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Data.DeviceId = guidDeviceId;
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hr =
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pKsPropertySet->Get
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(
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DSPROPSETID_DirectSoundMixer,
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DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY,
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NULL,
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0,
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&Data,
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sizeof(Data),
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NULL
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);
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if(SUCCEEDED(hr))
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{
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*pSrcQuality = Data.Quality;
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}
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return hr;
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}
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/***************************************************************************
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*
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* PrvSetMixerSrcQuality
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*
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* Description:
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* Sets the mixer SRC quality for a given DirectSound device.
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*
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* Arguments:
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* LPKSPROPERTYSET [in]: IKsPropertySet interface to the
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* DirectSoundPrivate object.
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* REFGUID [in]: DirectSound device GUID.
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* DIRECTSOUNDMIXER_SRCQUALITY [in]: mixer SRC quality.
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*
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* Returns:
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* HRESULT: DirectSound/COM result code.
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*
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***************************************************************************/
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HRESULT PrvSetMixerSrcQuality
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(
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LPKSPROPERTYSET pKsPropertySet,
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REFGUID guidDeviceId,
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DIRECTSOUNDMIXER_SRCQUALITY SrcQuality
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)
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{
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DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY_DATA Data;
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HRESULT hr;
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Data.DeviceId = guidDeviceId;
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Data.Quality = SrcQuality;
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hr =
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pKsPropertySet->Set
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(
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DSPROPSETID_DirectSoundMixer,
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DSPROPERTY_DIRECTSOUNDMIXER_SRCQUALITY,
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NULL,
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0,
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&Data,
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sizeof(Data)
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);
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return hr;
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}
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/***************************************************************************
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*
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* PrvGetMixerAcceleration
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*
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* Description:
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* Gets the mixer acceleration flags for a given DirectSound device.
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*
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* Arguments:
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* LPKSPROPERTYSET [in]: IKsPropertySet interface to the
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* DirectSoundPrivate object.
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* REFGUID [in]: DirectSound device GUID.
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* LPDWORD [out]: receives acceleration flags.
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*
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* Returns:
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* HRESULT: DirectSound/COM result code.
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*
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***************************************************************************/
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HRESULT PrvGetMixerAcceleration
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(
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LPKSPROPERTYSET pKsPropertySet,
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REFGUID guidDeviceId,
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LPDWORD pdwAcceleration
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)
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{
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DSPROPERTY_DIRECTSOUNDMIXER_ACCELERATION_DATA Data;
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HRESULT hr;
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Data.DeviceId = guidDeviceId;
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hr =
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pKsPropertySet->Get
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(
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DSPROPSETID_DirectSoundMixer,
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DSPROPERTY_DIRECTSOUNDMIXER_ACCELERATION,
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NULL,
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0,
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&Data,
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sizeof(Data),
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NULL
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);
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if(SUCCEEDED(hr))
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{
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*pdwAcceleration = Data.Flags;
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}
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return hr;
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}
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/***************************************************************************
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*
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* PrvSetMixerAcceleration
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*
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* Description:
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* Sets the mixer acceleration flags for a given DirectSound device.
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*
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* Arguments:
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* LPKSPROPERTYSET [in]: IKsPropertySet interface to the
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* DirectSoundPrivate object.
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* REFGUID [in]: DirectSound device GUID.
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* DWORD [in]: acceleration flags.
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*
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* Returns:
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* HRESULT: DirectSound/COM result code.
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*
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***************************************************************************/
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HRESULT PrvSetMixerAcceleration
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(
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LPKSPROPERTYSET pKsPropertySet,
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REFGUID guidDeviceId,
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DWORD dwAcceleration
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)
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{
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DSPROPERTY_DIRECTSOUNDMIXER_ACCELERATION_DATA Data;
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HRESULT hr;
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Data.DeviceId = guidDeviceId;
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Data.Flags = dwAcceleration;
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hr =
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pKsPropertySet->Set
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(
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DSPROPSETID_DirectSoundMixer,
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DSPROPERTY_DIRECTSOUNDMIXER_ACCELERATION,
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NULL,
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0,
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&Data,
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sizeof(Data)
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);
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return hr;
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}
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/***************************************************************************
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*
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* PrvGetDevicePresence
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*
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* Description:
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* Determines whether a device is enabled.
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*
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* Arguments:
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* LPKSPROPERTYSET [in]: IKsPropertySet interface to the
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* DirectSoundPrivate object.
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* REFGUID [in]: DirectSound device GUID.
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* LPBOOL [out]: receives TRUE if the device is enabled.
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*
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* Returns:
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* HRESULT: DirectSound/COM result code.
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*
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***************************************************************************/
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HRESULT PrvGetDevicePresence
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(
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LPKSPROPERTYSET pKsPropertySet,
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REFGUID guidDeviceId,
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LPBOOL pfEnabled
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)
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{
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DSPROPERTY_DIRECTSOUNDDEVICE_PRESENCE_DATA Data;
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HRESULT hr;
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Data.DeviceId = guidDeviceId;
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hr =
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pKsPropertySet->Get
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(
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DSPROPSETID_DirectSoundDevice,
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DSPROPERTY_DIRECTSOUNDDEVICE_PRESENCE,
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NULL,
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0,
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&Data,
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sizeof(Data),
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NULL
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);
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if(SUCCEEDED(hr))
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{
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*pfEnabled = Data.Present;
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}
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return hr;
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}
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/***************************************************************************
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*
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* PrvSetDevicePresence
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*
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* Description:
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* Sets whether a device is enabled.
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*
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* Arguments:
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* LPKSPROPERTYSET [in]: IKsPropertySet interface to the
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* DirectSoundPrivate object.
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* REFGUID [in]: DirectSound device GUID.
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* BOOL [in]: TRUE if the device is enabled.
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*
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* Returns:
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* HRESULT: DirectSound/COM result code.
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*
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***************************************************************************/
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HRESULT PrvSetDevicePresence
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(
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LPKSPROPERTYSET pKsPropertySet,
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REFGUID guidDeviceId,
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BOOL fEnabled
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)
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{
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DSPROPERTY_DIRECTSOUNDDEVICE_PRESENCE_DATA Data;
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HRESULT hr;
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Data.DeviceId = guidDeviceId;
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Data.Present = fEnabled;
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hr =
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pKsPropertySet->Set
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(
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DSPROPSETID_DirectSoundDevice,
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DSPROPERTY_DIRECTSOUNDDEVICE_PRESENCE,
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NULL,
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0,
|
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&Data,
|
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sizeof(Data)
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);
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return hr;
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}
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/***************************************************************************
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*
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* PrvGetWaveDeviceMapping
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*
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* Description:
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* Gets the DirectSound device id (if any) for a given waveIn or
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* waveOut device description. This is the description given by
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* waveIn/OutGetDevCaps (szPname).
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*
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* Arguments:
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* LPKSPROPERTYSET [in]: IKsPropertySet interface to the
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* DirectSoundPrivate object.
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* LPCSTR [in]: wave device description.
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* BOOL [in]: TRUE if the device description refers to a waveIn device.
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* LPGUID [out]: receives DirectSound device GUID.
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*
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* Returns:
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* HRESULT: DirectSound/COM result code.
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*
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***************************************************************************/
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HRESULT PrvGetWaveDeviceMapping
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(
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LPKSPROPERTYSET pKsPropertySet,
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LPCTSTR pszWaveDevice,
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BOOL fCapture,
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LPGUID pguidDeviceId
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)
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{
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DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING_DATA Data;
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HRESULT hr;
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Data.DeviceName = (LPTSTR)pszWaveDevice;
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Data.DataFlow = fCapture ? DIRECTSOUNDDEVICE_DATAFLOW_CAPTURE : DIRECTSOUNDDEVICE_DATAFLOW_RENDER;
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hr =
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pKsPropertySet->Get
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(
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DSPROPSETID_DirectSoundDevice,
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DSPROPERTY_DIRECTSOUNDDEVICE_WAVEDEVICEMAPPING,
|
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NULL,
|
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0,
|
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&Data,
|
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sizeof(Data),
|
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NULL
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);
|
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|
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if(SUCCEEDED(hr))
|
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{
|
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*pguidDeviceId = Data.DeviceId;
|
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}
|
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|
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return hr;
|
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}
|
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|
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|
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/***************************************************************************
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*
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* PrvGetDeviceDescription
|
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*
|
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* Description:
|
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* Gets the extended description for a given DirectSound device.
|
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*
|
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* Arguments:
|
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* LPKSPROPERTYSET [in]: IKsPropertySet interface to the
|
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* DirectSoundPrivate object.
|
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* REFGUID [in]: DirectSound device id.
|
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* PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA [out]: receives
|
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* description.
|
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*
|
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* Returns:
|
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* HRESULT: DirectSound/COM result code.
|
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*
|
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***************************************************************************/
|
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HRESULT PrvGetDeviceDescription
|
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(
|
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LPKSPROPERTYSET pKsPropertySet,
|
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REFGUID guidDeviceId,
|
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PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA *ppData
|
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)
|
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{
|
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PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA pData = NULL;
|
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ULONG cbData;
|
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DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA Basic;
|
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HRESULT hr;
|
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|
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Basic.DeviceId = guidDeviceId;
|
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|
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hr =
|
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pKsPropertySet->Get
|
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(
|
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DSPROPSETID_DirectSoundDevice,
|
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DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION,
|
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NULL,
|
|
0,
|
|
&Basic,
|
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sizeof(Basic),
|
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&cbData
|
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);
|
|
|
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if(SUCCEEDED(hr))
|
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{
|
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pData = (PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA)new BYTE [cbData];
|
|
|
|
if(!pData)
|
|
{
|
|
hr = DSERR_OUTOFMEMORY;
|
|
}
|
|
}
|
|
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
ZeroMemory(pData, cbData);
|
|
|
|
pData->DeviceId = guidDeviceId;
|
|
|
|
hr =
|
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pKsPropertySet->Get
|
|
(
|
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DSPROPSETID_DirectSoundDevice,
|
|
DSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION,
|
|
NULL,
|
|
0,
|
|
pData,
|
|
cbData,
|
|
NULL
|
|
);
|
|
}
|
|
|
|
if(SUCCEEDED(hr))
|
|
{
|
|
*ppData = pData;
|
|
}
|
|
else if(pData)
|
|
{
|
|
delete pData;
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
/***************************************************************************
|
|
*
|
|
* PrvReleaseDeviceDescription
|
|
*
|
|
***************************************************************************/
|
|
HRESULT PrvReleaseDeviceDescription( PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA pData )
|
|
{
|
|
delete[] pData;
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
/***************************************************************************
|
|
*
|
|
* 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;
|
|
}
|
|
|
|
|