Audio device route

[KillerBOSS2019]

• current requirements (pip freeze)
• OS version Win11
• architecture 64bit
• Python version 3.9
• pycaw version latest

I was wondering if theres a way to route audio devices like in Volume Mixer when you click a app you can choose the output/input device.

Also I found this if it helps because I noticed it uses policyconfig thing https://github.com/Belphemur/SoundSwitch/blob/d5380f894f118c3a4e13a04095d073e653aadaba/SoundSwitch.Audio.Manager/AudioSwitcher.cs#L109

[KillerBOSS2019]

DEVINTERFACE_AUDIO_RENDER  = "#{e6327cad-dcec-4949-ae8a-991e976a79d2}"
DEVINTERFACE_AUDIO_CAPTURE = "#{2eef81be-33fa-4800-9670-1cd474972c3f}"
MMDEVAPI_TOKEN = "@\\?\SWD#MMDEVAPI#"
#pc.
def generateDeviceId(deviceId, flow):
    return f"{MMDEVAPI_TOKEN}{deviceId}{(DEVINTERFACE_AUDIO_RENDER if flow == 0 else DEVINTERFACE_AUDIO_CAPTURE)}"

WindowsCreateString = ctypes.WinDLL("combase.dll").WindowsCreateString
WindowsCreateString.argtypes = [
    wintypes.LPCWSTR,
    wintypes.UINT,
        ctypes.POINTER(wintypes.HSTR)
]

def SwitchProcessTo(deviceid, flow, ERole, processId):
    generatedStr = generateDeviceId(deviceid, flow)
    stringPtrDeviceId = wintypes.HSTR()
    instr = generateDeviceId(deviceid, flow)
    WindowsCreateString(instr, len(instr), ctypes.byref(stringPtrDeviceId))
    print(generateDeviceId)
    print(ctypes.string_at(ctypes.addressof(stringPtrDeviceId)))

I know nothing about C# but I managed to convert this part of code https://github.com/Belphemur/SoundSwitch/blob/d5380f894f118c3a4e13a04095d073e653aadaba/SoundSwitch.Audio.Manager/Interop/Client/ExtendedPolicyClient.cs#L57 now just this part https://github.com/Belphemur/SoundSwitch/blob/d5380f894f118c3a4e13a04095d073e653aadaba/SoundSwitch.Audio.Manager/Interop/Client/Extended/AudioPolicyConfig.cs#L119

[KillerBOSS2019]

solved