void AudioEndpoint::SetAsDefault()
{
if (!IsValid())
return;
// The following works if we are on Windows 7 or Windows 8
IPolicyConfig *pPolicyConfig7or8 = PolicyFactory::CreatePolicy7or8();
if (pPolicyConfig7or8 != NULL)
{
pPolicyConfig7or8->SetDefaultEndpoint(iId, eConsole);
pPolicyConfig7or8->Release();
return;
}
// The following works if we are on Windows 10
IPolicyConfig *pPolicyConfig10 = PolicyFactory::CreatePolicy10();
if (pPolicyConfig10 != NULL)
{
pPolicyConfig10->SetDefaultEndpoint(iId, eConsole);
pPolicyConfig10->Release();
return;
}
// The following works if we are on vista
IPolicyConfigVista *pPolicyConfigVista = PolicyFactory::CreatePolicyVista();
if (pPolicyConfigVista != NULL)
{
pPolicyConfigVista->SetDefaultEndpoint(iId, eConsole);
pPolicyConfigVista->Release();
return;
}
}
void AudioEndpoint::SetEnabled(TBool aEnabled)
{
if (!IsValid())
return;
// The following works if we are on Windows 7 or Windows 8
IPolicyConfig *pPolicyConfig7or8 = PolicyFactory::CreatePolicy7or8();
if (pPolicyConfig7or8 != NULL)
{
pPolicyConfig7or8->SetEndpointVisibility(iId, aEnabled ? 1 : 0);
pPolicyConfig7or8->Release();
return;
}
// The following works if we are on Windows 10
IPolicyConfig *pPolicyConfig10 = PolicyFactory::CreatePolicy10();
if (pPolicyConfig10 != NULL)
{
pPolicyConfig10->SetEndpointVisibility(iId, aEnabled ? 1 : 0);
pPolicyConfig10->Release();
return;
}
// The following works if we are on vista
IPolicyConfigVista *pPolicyConfigVista = PolicyFactory::CreatePolicyVista();
if (pPolicyConfigVista != NULL)
{
pPolicyConfigVista->SetEndpointVisibility(iId, aEnabled ? 1 : 0);
pPolicyConfigVista->Release();
return;
}
}
HRESULT SetDefaultAudioPlaybackDevice(LPCWSTR devID)
{
IPolicyConfigVista *pPolicyConfig;
ERole reserved = eConsole;
HRESULT hr = CoCreateInstance(__uuidof(CPolicyConfigVistaClient),
NULL, CLSCTX_ALL, __uuidof(IPolicyConfigVista), (LPVOID *)&pPolicyConfig);
if (SUCCEEDED(hr))
{
hr = pPolicyConfig->SetDefaultEndpoint(devID, reserved);
pPolicyConfig->Release();
}
return hr;
}
BOOL SetDefaultAudioDevice_Vista(LPCTSTR lpszHardwareId, LPCTSTR lpszName)
{
HRESULT hr = S_FALSE;
BOOL bSuccessful = FALSE;
IMMDeviceEnumerator *pDeviceEnumerator = NULL;
IMMDeviceCollection* pCollection = NULL;
IPolicyConfigVista *pPolicyConfigVista = NULL;
do {
CElcAudioDeviceEnumerator enumerator;
if (!enumerator.Enumerate(FALSE))
break;
CElcDeviceItem * pAudioItem = enumerator.FindItemByPnpId(lpszHardwareId, lpszName);
if (!pAudioItem)
break;
if (FAILED(CoCreateInstance(
__uuidof(MMDeviceEnumerator),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IMMDeviceEnumerator),
(LPVOID *)&pDeviceEnumerator)))
{
break;
}
if (FAILED(pDeviceEnumerator->EnumAudioEndpoints(
eRender,
DEVICE_STATE_ACTIVE,
&pCollection)))
{
break;
}
LPWSTR lpszId = NULL;
UINT nCount = 0;
pCollection->GetCount(&nCount);
for (UINT i=0; i<nCount; i++) {
IMMDevice* pDevice = NULL;
if (SUCCEEDED(pCollection->Item(i, &pDevice))) {
pDevice->GetId(&lpszId);
SAFE_RELEASE(pDevice);
LPCWSTR lpszIdDup = lpszId + 17;
if (pAudioItem->m_strDeviceId.CompareNoCase(lpszIdDup) == 0)
break;
CoTaskMemFree(lpszId);
lpszId = NULL;
}
}
if (lpszId && SUCCEEDED(CoCreateInstance(
__uuidof(CPolicyConfigVistaClient),
NULL,
CLSCTX_ALL,
__uuidof(IPolicyConfigVista),
(LPVOID *)&pPolicyConfigVista)))
{
if (SUCCEEDED(pPolicyConfigVista->SetDefaultEndpoint(lpszId, eMultimedia))
&& SUCCEEDED(pPolicyConfigVista->SetDefaultEndpoint(lpszId, eCommunications)))
bSuccessful = TRUE;
}
if (lpszId)
CoTaskMemFree(lpszId);
} while (0);
SAFE_RELEASE(pPolicyConfigVista);
SAFE_RELEASE(pCollection);
SAFE_RELEASE(pDeviceEnumerator);
return bSuccessful;
}
