IPolicyConfigVista SetDefaultEndpoint is not implemented

[yan0lovesha]

The API in PolicyConfig.h which shown in below sample code is not implemented.

#include "Mmdeviceapi.h"
#include "PolicyConfig.h"
#include "Propidl.h"
#include "Functiondiscoverykeys_devpkey.h"
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;
}

[riverar]

PolicyConfig/SetDefaultAudioPlaybackDevice are not supported/documented APIs. Was something I added to my app EarTrumpet 6 or so years ago then became "documented" 😂.

You can certainly CoCreateInstance/QI for these manually but this is not a windows crate issue. Closing.

[yan0lovesha]

Just left my implementation here in case any others get to this issue.
https://github.com/yan0lovesha/AudioSwitch