Windows系统获取音频设备属性信息

#include <iostream>



#include <iostream>
#include <windows.h>
#include <Audioclient.h>

#include <MMSystem.h>
#include <mmdeviceapi.h>
#include <endpointvolume.h>
#include <Functiondiscoverykeys_devpkey.h>//PKEY_Device_FriendlyName


//-----------------------------------------------------------
// Record an audio stream from the default audio capture
// device. The RecordAudioStream function allocates a shared
// buffer big enough to hold one second of PCM audio data.
// The function uses this buffer to stream data from the
// capture device. The main loop runs every 1/2 second.
//-----------------------------------------------------------

// REFERENCE_TIME time units per second and per millisecond
#define REFTIMES_PER_SEC  10000000
#define REFTIMES_PER_MILLISEC  10000 //100ns

//以下代码来自MSDN
#define EXIT_ON_ERROR(hres)  \
              if (FAILED(hres)) { goto Exit; }
#define SAFE_RELEASE(punk)  \
              if ((punk) != NULL)  \
                { (punk)->Release(); (punk) = NULL; }

const CLSID CLSID_MMDeviceEnumerator = __uuidof(MMDeviceEnumerator);
const IID IID_IMMDeviceEnumerator = __uuidof(IMMDeviceEnumerator);

void PrintEndpointNames()
{
    HRESULT hr = S_OK;
    IMMDeviceEnumerator* pEnumerator = NULL;
    IMMDeviceCollection* pCollection = NULL;
    IMMDevice* pEndpoint = NULL;
    IPropertyStore* pProps = NULL;
    LPWSTR pwszID = NULL;

    hr = CoCreateInstance(CLSID_MMDeviceEnumerator, NULL,CLSCTX_ALL, IID_IMMDeviceEnumerator,(void**)&pEnumerator);
    if (FAILED(hr))
    { 
        goto Exit; 
    }


    hr = pEnumerator->EnumAudioEndpoints( eAll, DEVICE_STATE_ACTIVE,&pCollection);
    if (FAILED(hr))
    {
        goto Exit;
    }


    UINT  count;
    hr = pCollection->GetCount(&count);
    if (FAILED(hr))
    {
        goto Exit;
    }

    if (count == 0)
    {
        printf("No endpoints found.\n");
    }

    for (ULONG i = 0; i < count; i++)
    {
        hr = pCollection->Item(i, &pEndpoint);
        if (FAILED(hr))
        {
            goto Exit;
        }

        hr = pEndpoint->GetId(&pwszID);
        if (FAILED(hr))
        {
            goto Exit;
        }

        hr = pEndpoint->OpenPropertyStore(STGM_READ, &pProps);
        if (FAILED(hr))
        {
            goto Exit;
        }

        PROPVARIANT varName;
        PropVariantInit(&varName);

        hr = pProps->GetValue(PKEY_Device_FriendlyName, &varName);
        if (FAILED(hr))
        {
            goto Exit;
        }

       printf("Endpoint %d: \"%S\" (%S)\n",  i, varName.pwszVal, pwszID);
       CoTaskMemFree(pwszID);
       pwszID = NULL;


        PropVariantClear(&varName);
        if (pProps != NULL)
        {
            pProps->Release();
            pProps = NULL;
        }
        if (pEndpoint != NULL)
        {
            pEndpoint->Release();
            pEndpoint = NULL;
        }

    }
    if (pEnumerator != NULL)
    {
        pEnumerator->Release();
        pEnumerator = NULL;
    }
    if (pCollection != NULL)
    {
        pCollection->Release();
        pCollection = NULL;
    }

    return;

Exit:
    printf("Error!\n");
    CoTaskMemFree(pwszID);
    SAFE_RELEASE(pEnumerator);
    SAFE_RELEASE(pCollection);
    SAFE_RELEASE(pEndpoint);
    SAFE_RELEASE(pProps);
}

int main()
{
    CoInitialize(NULL);
    PrintEndpointNames();

    CoUninitialize();
   return  getchar();
}

可获取的设备属性信息包括：
头文件定义路径为：

C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\um\functiondiscoverykeys_devpkey.h

内容为：

PKEY_Device_DeviceDesc,            
PKEY_Device_HardwareIds,           
PKEY_Device_CompatibleIds,         
PKEY_Device_Service,               
PKEY_Device_Class,                 
PKEY_Device_ClassGuid,             
PKEY_Device_Driver,                
PKEY_Device_ConfigFlags,           
PKEY_Device_Manufacturer,          
PKEY_Device_FriendlyName,          
PKEY_Device_LocationInfo,          
PKEY_Device_PDOName,               
PKEY_Device_Capabilities,          
PKEY_Device_UINumber,              
PKEY_Device_UpperFilters,          
PKEY_Device_LowerFilters,          
PKEY_Device_BusTypeGuid,           
PKEY_Device_LegacyBusType,         
PKEY_Device_BusNumber,             
PKEY_Device_EnumeratorName,        
PKEY_Device_Security,              
PKEY_Device_SecuritySDS,           
PKEY_Device_DevType,               
PKEY_Device_Exclusive,             
PKEY_Device_Characteristics,       
PKEY_Device_Address,               
PKEY_Device_UINumberDescFormat,    
PKEY_Device_PowerData,             
PKEY_Device_RemovalPolicy,         
PKEY_Device_RemovalPolicyDefault,  
PKEY_Device_RemovalPolicyOverride, 
PKEY_Device_InstallState,          
PKEY_Device_LocationPaths,         
PKEY_Device_BaseContainerId,       


PKEY_Device_DevNodeStatus,         
PKEY_Device_ProblemCode,           




PKEY_Device_EjectionRelations,     
PKEY_Device_RemovalRelations,      
PKEY_Device_PowerRelations,        
PKEY_Device_BusRelations,          
PKEY_Device_Parent,                
PKEY_Device_Children,              
PKEY_Device_Siblings,              
PKEY_Device_TransportRelations,    




PKEY_Device_Reported,              
PKEY_Device_Legacy,                
PKEY_Device_InstanceId,            

PKEY_Device_ContainerId,           

PKEY_Device_ModelId,               

PKEY_Device_FriendlyNameAttributes,
PKEY_Device_ManufacturerAttributes,

PKEY_Device_PresenceNotForDevice,  
PKEY_Device_SignalStrength,        
PKEY_Device_IsAssociateableByUserAc



PKEY_Numa_Proximity_Domain,        
PKEY_Device_DHP_Rebalance_Policy,  
PKEY_Device_Numa_Node,             
PKEY_Device_BusReportedDeviceDesc, 

PKEY_Device_InstallInProgress,     



PKEY_Device_DriverDate,            
PKEY_Device_DriverVersion,         
PKEY_Device_DriverDesc,            
PKEY_Device_DriverInfPath,         
PKEY_Device_DriverInfSection,      
PKEY_Device_DriverInfSectionExt,   
PKEY_Device_MatchingDeviceId,      
PKEY_Device_DriverProvider,        
PKEY_Device_DriverPropPageProvider,
PKEY_Device_DriverCoInstallers,    
PKEY_Device_ResourcePickerTags,    
PKEY_Device_ResourcePickerException
PKEY_Device_DriverRank,            
PKEY_Device_DriverLogoLevel,       
PKEY_Device_NoConnectSound,        
PKEY_Device_GenericDriverInstalled,
PKEY_Device_AdditionalSoftwareReque



PKEY_Device_SafeRemovalRequired,   
PKEY_Device_SafeRemovalRequiredOver




PKEY_DrvPkg_Model,                 
PKEY_DrvPkg_VendorWebSite,         
PKEY_DrvPkg_DetailedDescription,   
PKEY_DrvPkg_DocumentationLink,     
PKEY_DrvPkg_Icon,                  
PKEY_DrvPkg_BrandingIcon,          



PKEY_DeviceClass_UpperFilters,     
PKEY_DeviceClass_LowerFilters,     
PKEY_DeviceClass_Security,         
PKEY_DeviceClass_SecuritySDS,      
PKEY_DeviceClass_DevType,          
PKEY_DeviceClass_Exclusive,        
PKEY_DeviceClass_Characteristics,  



PKEY_DeviceClass_Name,             
PKEY_DeviceClass_ClassName,        
PKEY_DeviceClass_Icon,             
PKEY_DeviceClass_ClassInstaller,   
PKEY_DeviceClass_PropPageProvider, 
PKEY_DeviceClass_NoInstallClass,   
PKEY_DeviceClass_NoDisplayClass,   
PKEY_DeviceClass_SilentInstall,    
PKEY_DeviceClass_NoUseClass,       
PKEY_DeviceClass_DefaultService,   
PKEY_DeviceClass_IconPath,         


PKEY_DeviceClass_ClassCoInstallers,
PKEY_DeviceInterface_FriendlyName, 
PKEY_DeviceInterface_Enabled,      
PKEY_DeviceInterface_ClassGuid,