183 lines
4.8 KiB
C++
183 lines
4.8 KiB
C++
/****************************************************************************
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*
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* File: sndinfo7.cpp
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* Project: DxDiag (DirectX Diagnostic Tool)
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* Author: Mike Anderson (manders@microsoft.com)
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* Purpose: Gather DX7-specific sound information
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*
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* (C) Copyright 1998 Microsoft Corp. All rights reserved.
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*
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****************************************************************************/
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#define DIRECTSOUND_VERSION 0x0700 // <-- note difference from sndinfo.cpp
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#include <tchar.h>
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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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static HRESULT PrvGetDeviceDescription7
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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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static HRESULT PrvReleaseDeviceDescription7
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(
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PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA pData
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);
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/****************************************************************************
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*
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* GetRegKey
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*
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****************************************************************************/
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HRESULT GetRegKey(LPKSPROPERTYSET pKSPS7, REFGUID guidDeviceID, TCHAR* pszRegKey)
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{
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HRESULT hr;
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PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA pdsddd;
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TCHAR szInterface[200];
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TCHAR* pchSrc;
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TCHAR* pchDest;
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if (FAILED(hr = PrvGetDeviceDescription7(pKSPS7, guidDeviceID, &pdsddd)))
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return hr;
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if (pdsddd->Interface == NULL) // This seems to always be the case on Win9x
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{
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lstrcpy(pszRegKey, TEXT(""));
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PrvReleaseDeviceDescription7( pdsddd );
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return E_FAIL;
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}
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lstrcpy(szInterface, pdsddd->Interface);
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PrvReleaseDeviceDescription7( pdsddd );
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pdsddd = NULL;
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pchSrc = szInterface + 4; // skip "\\?\"
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pchDest = pszRegKey;
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while (TRUE)
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{
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*pchDest = *pchSrc;
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if (*pchDest == TEXT('#')) // Convert "#" to "\"
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*pchDest = TEXT('\\');
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if (*pchDest == TEXT('{')) // End if "{" found
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*pchDest = TEXT('\0');
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if (*pchDest == TEXT('\0'))
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break;
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pchDest++;
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pchSrc++;
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}
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if (*(pchDest-1) == TEXT('\\')) // Remove final "\"
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*(pchDest-1) = TEXT('\0');
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return S_OK;
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}
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// The following function is identical to the one defined in dsprvobj.cpp,
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// except it is defined with DIRECTSOUND_VERSION at 0x0700, so you get more
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// description data (namely the Interface string).
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/***************************************************************************
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*
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* PrvGetDeviceDescription7
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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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static HRESULT PrvGetDeviceDescription7
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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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Basic.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_DESCRIPTION,
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NULL,
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0,
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&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];
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if(!pData)
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{
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hr = DSERR_OUTOFMEMORY;
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}
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}
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if(SUCCEEDED(hr))
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{
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ZeroMemory(pData, cbData);
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pData->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_DESCRIPTION,
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NULL,
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0,
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pData,
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cbData,
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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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*ppData = pData;
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}
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else if(pData)
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{
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delete pData;
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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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* PrvReleaseDeviceDescription7
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*
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***************************************************************************/
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HRESULT PrvReleaseDeviceDescription7( PDSPROPERTY_DIRECTSOUNDDEVICE_DESCRIPTION_DATA pData )
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{
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delete[] pData;
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return S_OK;
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}
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