win7怎么设置声道 (win7声道怎么调)

在国内的网址上找不到类似的文章,于是从其他方面着手,找到了如下的代码。

并使用VS2010编译通过,代码公布,遵循GPL规定。

具体代码从GITHUB中的QT代码移植到VS2010

// wAudio.cpp : Defines the entry point for the console application.

//

#include \"stdafx.h\"

#include <Windows.h>

#include <Endpointvolume.h>

#include <Mmdeviceapi.h>

#include <conio.h>

#include <mmdeviceapi.h>

#include <devicetopology.h>

#include <Ksmedia.h>

#include <math.h>

#pragma comment(lib, \"Winmm.lib\")

HRESULT _hr;

IMMDeviceEnumerator *_pDeviceEnumerator;

IMMDevice *_pDefaultDevice;

IDeviceTopology *_pDeviceTopology;

IConnector *_pConnectorFrom;

IConnector *_pConnectorTo;

IPart *_pPart;

IAudioVolumeLevel *_pAudioVolumeLevelFront;

IAudioVolumeLevel *_pAudioVolumeLevelRear;

IAudioVolumeLevel *_pAudioVolumeLevelSubwoofer;

IAudioVolumeLevel *_pAudioVolumeLevelCenter;

IAudioVolumeLevel *_pAudioVolumeLevelSide;

#define version \"1.0.0\"

#define progname \"wAudio.exe\"

int dID = 1;

void usage(void)

{

fprintf(stderr, \"Audio volume control for gaming Version: %s\n\"

\"\n(c) Tody 2018, T-ware Inc.\n\"

\"\nUsage:\n\t%s <ID volume>\"

\"\nID Options:\n\"

\" 1 front volume\n\"

\" 2 Rear volume\n\"

\" 3 Subwoofer volume\n\"

\" 4 Center volume\n\"

\" 5 Side volume\n\", version, progname );

exit(1);

}

float dbToPercent(float value)

{

return powf(10.0f, (value/20.0f)) * 100.0f;

}

float percentToDb(float value)

{

return 20 * log10(value/100);

}

void on_hSlider_Front_valueChanged(int value)

{

if(_pAudioVolumeLevelFront)

{

float valueDB =percentToDb(value);

float valDBs[2] = { valueDB, valueDB };

_pAudioVolumeLevelFront->SetLevelAllChannels(valDBs, 2, NULL);

}

}

void on_hSlider_Rear_valueChanged(int value)

{

if(_pAudioVolumeLevelRear)

{

float valueDB = percentToDb(value);

float valDBs[2] = { valueDB, valueDB };

_pAudioVolumeLevelRear->SetLevelAllChannels(valDBs, 2, NULL);

}

}

void on_hSlider_Sub_valueChanged(int value)

{

if(_pAudioVolumeLevelSubwoofer)

{

float valueDB = percentToDb(value);

_pAudioVolumeLevelSubwoofer->SetLevel(0, valueDB, NULL);

}

}

void on_hSlider_Center_valueChanged(int value)

{

if(_pAudioVolumeLevelCenter)

{

float valueDB = percentToDb(value);

_pAudioVolumeLevelCenter->SetLevel(0, valueDB, NULL);

}

}

void on_hSlider_Side_valueChanged(int value)

{

if(_pAudioVolumeLevelSide)

{

float valueDB = percentToDb(value);

float valDBs[2] = { valueDB, valueDB };

_pAudioVolumeLevelSide->SetLevelAllChannels(valDBs, 2, NULL);

}

}

int main(int argc, char* argv[])

{

float ch0, ch1;

int volume=100;

if (argc!=3)

usage();

if (atoi(argv[1])<1 || atoi(argv[1])>5)

usage();

if (atoi(argv[2])>100 || atoi(argv[2])<0)

usage();

dID = atoi(argv[1]);

volume=atoi(argv[2]);

// Initialize COM component

_hr = CoInitialize(NULL);

if(FAILED(_hr)){

printf(\"CoInitialize failed\");

return 1;

}

_hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_INPROC_SERVER, __uuidof(IMMDeviceEnumerator), (LPVOID *)&_pDeviceEnumerator);

if (_hr != S_OK){

fprintf(stderr,\"MMDeviceEnumerator failed\n\");

return 1;

}

_hr = _pDeviceEnumerator->GetDefaultAudioEndpoint(eRender, eConsole, &_pDefaultDevice); // need default device in mmsys.cpl Speakers

if (_hr != S_OK){

fprintf(stderr,\"GetDefaultAudioEndpoint failed\n\");

return 1;

}

_hr = _pDefaultDevice->Activate(__uuidof(IDeviceTopology), CLSCTX_INPROC_SERVER, NULL, (PVOID *)&_pDeviceTopology);

if (_hr != S_OK){

fprintf(stderr,\"IDeviceTopology failed\n\");

return 1;

}

_hr = _pDeviceTopology->GetConnector(0, &_pConnectorFrom);

if (_hr != S_OK){

fprintf(stderr,\"GetConnector failed\n\");

return 1;

}

_hr = _pConnectorFrom->GetConnectedTo(&_pConnectorTo);

if (_hr != S_OK){

fprintf(stderr,\"GetConnectedTo failed\n\");

return 1;

}

_hr = _pConnectorTo->QueryInterface(__uuidof(IPart), (PVOID *)&_pPart);

if (_hr != S_OK){

fprintf(stderr,\"QueryInterface failed\n\");

return 1;

}

LPWSTR PartName = nullptr;

_pPart->GetName(&PartName);

wprintf(L\"> %s\n\", PartName); // Realtek High Definition Audio

CoTaskMemFree(PartName);

PartName = nullptr;

IPartsList *pPartList = nullptr;

_hr = _pPart->EnumPartsIncoming(&pPartList);

if(_hr != S_OK){

fprintf(stderr,\"EnumPartsIncoming failed\n\");

return 1;

}

IPart *pPartItem1 = nullptr;

_hr = pPartList->GetPart(0, &pPartItem1);

if(_hr != S_OK){

fprintf(stderr,\"GetPart failed\n\");

return 1;

}

LPWSTR PartNameItem1 = nullptr;

pPartItem1->GetName(&PartNameItem1);

wprintf(L\"> %s\n\", PartNameItem1);

CoTaskMemFree(PartNameItem1);

PartNameItem1 = nullptr;

// Find GUID/KSNODE in Ksmedia.h and see what interface you can init

///// https://msdn.microsoft.com/en-us/library/windows/desktop/dd371442(v=vs.85).aspx

GUID guidPartItem1;

_hr = pPartItem1->GetSubType(&guidPartItem1); // KSNODETYPE_MUTE pPartItem1->Activate(IAudioMute) (can control Master Mute of Realtek HD Audio output)

if(_hr != S_OK){

fprintf(stderr,\"GetSubType PartItem1 failed\n\");

return 1;

}

IPartsList *pPartList2 = nullptr;

IPart *pPartItem2 = nullptr;

_hr = pPartItem1->EnumPartsIncoming(&pPartList2);

if(_hr != S_OK){

fprintf(stderr,\"EnumPartsIncoming from PartItem1 failed\n\");

return 1;

}

_hr = pPartList2->GetPart(0, &pPartItem2);

if(_hr != S_OK){

fprintf(stderr,\"GetPart PartList2 failed\n\");

return 1;

}

LPWSTR PartNameItem2 = nullptr;

pPartItem2->GetName(&PartNameItem2);

wprintf(L\"> %s\n\", PartNameItem2);

CoTaskMemFree(PartNameItem2);

PartNameItem2 = nullptr;

GUID guidPartItem2;

_hr = pPartItem2->GetSubType(&guidPartItem2); // KSNODETYPE_VOLUME pPartItem2->Activate(IAudioVolumeLevel) (can control Master Volume of Realtek HD Audio output)

if(_hr != S_OK){

fprintf(stderr,\"GetSubType PartItem2 failed\n\");

return 1;

}

IPartsList *pPartList3 = nullptr;

_hr = pPartItem2->EnumPartsIncoming(&pPartList3);

if(_hr != S_OK){

fprintf(stderr,\"EnumPartsIncoming PartItem2 failed\n\");

return 1;

}

IPart *pPartItem3 = nullptr;

pPartList3->GetPart(0, &pPartItem3);

if(_hr != S_OK){

fprintf(stderr,\"GetPart PartItem3 failed\n\");

return 1;

}

LPWSTR PartNameItem3;

pPartItem3->GetName(&PartNameItem3);

wprintf(L\"> %s\n\", PartNameItem3);

CoTaskMemFree(PartNameItem3);

PartNameItem3 = nullptr;

GUID guidPartItem3;

_hr = pPartItem3->GetSubType(&guidPartItem3); // KSNODETYPE_SUM (Front, Rear, Subwoofer, Center, Side, ...)

if(_hr != S_OK){

fprintf(stderr,\"GetSubType PartItem3 failed\n\");

return 1;

}

IPartsList *pPartList4 = nullptr;

_hr = pPartItem3->EnumPartsIncoming(&pPartList4);

if(_hr != S_OK){

fprintf(stderr,\"EnumPartsIncoming PartItem3 failed\n\");

return 1;

}

UINT CountLevels;

pPartList4->GetCount(&CountLevels); // PartList4Count

printf(\"> Count Levels: %d\n\", CountLevels);

// (Front, Rear, Subwoofer, Center, Side, ...)

// -------

// Front

IPart *pPartItemFront = nullptr;

pPartList4->GetPart(CountLevels-1, &pPartItemFront);

LPWSTR PartItem4Name;

pPartItemFront->GetName(&PartItem4Name);

wprintf(L\"> %s\n\", PartItem4Name);

CoTaskMemFree(PartItem4Name);

PartItem4Name = nullptr;

GUID guidPartItem4;

_hr = pPartItemFront->GetSubType(&guidPartItem4); // KSNODETYPE_VOLUME pPartItemLast->Activate(IAudioVolumeLevel)

if(_hr != S_OK){

fprintf(stderr,\"GetSubType Front failed\n\");

return 1;

}

_hr = pPartItemFront->Activate(CLSCTX_INPROC, __uuidof(IAudioVolumeLevel), (PVOID *)&_pAudioVolumeLevelFront);

if(_hr != S_OK){

fprintf(stderr,\"Activate Front 电脑 failed\n\");

return 1;

}

if(pPartItemFront)

{

pPartItemFront->Release();

pPartItemFront = nullptr;

}

// -------

// Side

IPart *pPartItemRear = nullptr;

pPartList4->GetPart(CountLevels-2, &pPartItemRear);

LPWSTR PartItem5Name;

pPartItemRear->GetName(&PartItem5Name);

wprintf(L\"> %s\n\", PartItem5Name);

CoTaskMemFree(PartItem5Name);

PartItem5Name = nullptr;

_hr = pPartItemRear->Activate(CLSCTX_INPROC, __uuidof(IAudioVolumeLevel), (PVOID *)&_pAudioVolumeLevelRear);

if(_hr != S_OK){

fprintf(stderr,\"Activate Side failed\n\");

return 1;

}

if(pPartItemRear)

{

pPartItemRear->Release();

pPartItemRear = nullptr;

}

// -------

// Subwoofer 电脑

IPart *pPartItemSubwoofer = nullptr;

pPartList4->GetPart(CountLevels-3, &pPartItemSubwoofer);

LPWSTR PartItem6Name;

pPartItemSubwoofer->GetName(&PartItem6Name);

wprintf(L\"> %s\n\", PartItem6Name);

CoTaskMemFree(PartItem6Name);

PartItem6Name = nullptr;

_hr = pPartItemSubwoofer->Activate(CLSCTX_INPROC, __uuidof(IAudioVolumeLevel), (PVOID *)&_pAudioVolumeLevelSubwoofer);

if(_hr != S_OK){

fprintf(stderr,\"Activate Subwoofer failed\n\");

return 1;

}

if(pPartItemSubwoofer)

{

pPartItemSubwoofer->Release();

pPartItemSubwoofer = nullptr;

}

// -------

// Center

IPart *pPartItemCenter = nullptr;

pPartList4->GetPart(CountLevels-4, &pPartItemCenter);

LPWSTR PartItem7Name;

电脑 pPartItemCenter->GetName(&PartItem7Name);

wprintf(L\"> %s\n\", PartItem7Name);

CoTaskMemFree(PartItem7Name);

PartItem7Name = nullptr;

_hr = pPartItemCenter->Activate(CLSCTX_INPROC, __uuidof(IAudioVolumeLevel), (PVOID *)&_pAudioVolumeLevelCenter);

if(_hr != S_OK){

fprintf(stderr,\"Activate Center failed\n\");

return 1;

}

if(pPartItemCenter)

{

pPartItemCenter->Release();

pPartItemCenter = nullptr;

}

/*

// -------

// Mute

IPart *pPartItemSide = nullptr;

pPartList4->GetPart(CountLevels-5, &pPartItemSide);

LPWSTR PartItem8Name;

pPartItemSide->GetName(&PartItem8Name);

wprintf(L\"8: %s\n\", PartItem8Name);

CoTaskMemFree(PartItem8Name);

PartItem8Name = nullptr;

_hr = pPartItemSide->Activate(CLSCTX_INPROC, 电脑 __uuidof(IAudioVolumeLevel), (PVOID *)&_pAudioVolumeLevelSide);

if(_hr != S_OK){

fprintf(stderr,\"Activate failed\n\");

return 1;

}

if(pPartItemSide)

{

pPartItemSide->Release();

pPartItemSide = nullptr;

}

*/

printf(\"> Control code: <%d %d>\n\n\tSetting volume....\n\", dID, volume);

/// control code

switch(dID){

case 1: // Front

on_hSlider_Front_valueChanged(volume);

_pAudioVolumeLevelFront->GetLevel(0, &ch0);

_pAudioVolumeLevelFront->GetLevel(1, &ch1);

printf(\"\n\t[Front]# Left: %3.0f, Right: %3.0f\", dbToPercent(ch0), dbToPercent(ch1));

break;

case 2: // Rear

on_hSlider_Rear_valueChanged(volume);

_pAudioVolumeLevelRear->GetLevel(0, &ch0);

_pAudioVolumeLevelRear->GetLevel(1, &ch1);

printf(\"\n\t[Rear]# Left: %3.0f, Right: %3.0f\", dbToPercent(ch0), dbToPercent(ch1));

break;

case 3: // Subwoofer

on_hSlider_Sub_valueChanged(volume);

_pAudioVolumeLevelSubwoofer->GetLevel(0, &ch0);

printf(\"\n\t[Subwoofer]# %3.0f\", dbToPercent(ch0));

break;

case 4: // Center

on_hSlider_Center_valueChanged(volume);

_pAudioVolumeLevelCenter->GetLevel(0, &ch0);

printf(\"\n\t[Center]# %3.0f\", dbToPercent(ch0));

break;

case 5: // Side

on_hSlider_Side_valueChanged(volume);

_pAudioVolumeLevelSide->GetLevel(0, &ch0);

_pAudioVolumeLevelSide->GetLevel(1, &ch1);

printf(\"\n\t[Side]# Left: %3.0f, Right: %3.0f\", dbToPercent(ch0), dbToPercent(ch1));

break;

}

if(_pAudioVolumeLevelFront)

{

_pAudioVolumeLevelFront->Release();

_pAudioVolumeLevelFront = nullptr;

}

if(_pAudioVolumeLevelRear)

{

_pAudioVolumeLevelRear->Release();

_pAudioVolumeLevelRear = nullptr;

}

if(_pAudioVolumeLevelSubwoofer)

{

_pAudioVolumeLevelSubwoofer->Release();

_pAudioVolumeLevelSubwoofer = nullptr;

}

if(_pAudioVolumeLevelCenter)

{

_pAudioVolumeLevelCenter->Release();

_pAudioVolumeLevelCenter = nullptr;

}

if(_pAudioVolumeLevelSide)

{

_pAudioVolumeLevelSide->Release();

_pAudioVolumeLevelSide = nullptr;

}

if(_pPart)

{

_pPart->Release();

_pPart = nullptr;

}

if(_pConnectorTo)

{

_pConnectorTo->Release();

_pConnectorTo = nullptr;

}

if(_pConnectorFrom)

{

_pConnectorFrom->Release();

_pConnectorFrom = nullptr;

}

if(_pDeviceTopology)

{

_pDeviceTopology->Release();

_pDeviceTopology = nullptr;

}

if(_pDefaultDevice)

{

_pDefaultDevice->Release();

_pDefaultDevice = nullptr;

}

if(_pDeviceEnumerator)

{

_pDeviceEnumerator->Release();

_pDeviceEnumerator = nullptr;

}

CoUninitialize();

return 0;

}


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