I adapted it to have a single hotkey toggle between two audio outputs (speakers and headphones).
Code: Select all
+F18::
audiotoggle := !audiotoggle
If audiotoggle = 0
{
audioswitcher(2)
}
If audiotoggle = 1
{
audioswitcher(3)
}
;~ audiotoggle := !audiotoggle
return
audioswitcher(devicenum)
{
Devices := {}
IMMDeviceEnumerator := ComObjCreate("{BCDE0395-E52F-467C-8E3D-C4579291692E}", "{A95664D2-9614-4F35-A746-DE8DB63617E6}")
; IMMDeviceEnumerator::EnumAudioEndpoints
; eRender = 0, eCapture, eAll
; 0x1 = DEVICE_STATE_ACTIVE
DllCall(NumGet(NumGet(IMMDeviceEnumerator+0)+3*A_PtrSize), "UPtr", IMMDeviceEnumerator, "UInt", 0, "UInt", 0x1, "UPtrP", IMMDeviceCollection, "UInt")
ObjRelease(IMMDeviceEnumerator)
; IMMDeviceCollection::GetCount
DllCall(NumGet(NumGet(IMMDeviceCollection+0)+3*A_PtrSize), "UPtr", IMMDeviceCollection, "UIntP", Count, "UInt")
Loop % (Count)
{
; IMMDeviceCollection::Item
DllCall(NumGet(NumGet(IMMDeviceCollection+0)+4*A_PtrSize), "UPtr", IMMDeviceCollection, "UInt", A_Index-1, "UPtrP", IMMDevice, "UInt")
; IMMDevice::GetId
DllCall(NumGet(NumGet(IMMDevice+0)+5*A_PtrSize), "UPtr", IMMDevice, "UPtrP", pBuffer, "UInt")
DeviceID := StrGet(pBuffer, "UTF-16"), DllCall("Ole32.dll\CoTaskMemFree", "UPtr", pBuffer)
; IMMDevice::OpenPropertyStore
; 0x0 = STGM_READ
DllCall(NumGet(NumGet(IMMDevice+0)+4*A_PtrSize), "UPtr", IMMDevice, "UInt", 0x0, "UPtrP", IPropertyStore, "UInt")
ObjRelease(IMMDevice)
; IPropertyStore::GetValue
VarSetCapacity(PROPVARIANT, A_PtrSize == 4 ? 16 : 24)
VarSetCapacity(PROPERTYKEY, 20)
DllCall("Ole32.dll\CLSIDFromString", "Str", "{A45C254E-DF1C-4EFD-8020-67D146A850E0}", "UPtr", &PROPERTYKEY)
NumPut(14, &PROPERTYKEY + 16, "UInt")
DllCall(NumGet(NumGet(IPropertyStore+0)+5*A_PtrSize), "UPtr", IPropertyStore, "UPtr", &PROPERTYKEY, "UPtr", &PROPVARIANT, "UInt")
DeviceName := StrGet(NumGet(&PROPVARIANT + 8), "UTF-16") ; LPWSTR PROPVARIANT.pwszVal
DllCall("Ole32.dll\CoTaskMemFree", "UPtr", NumGet(&PROPVARIANT + 8)) ; LPWSTR PROPVARIANT.pwszVal
ObjRelease(IPropertyStore)
ObjRawSet(Devices, DeviceName, DeviceID)
}
ObjRelease(IMMDeviceCollection)
Devices2 := {}
For DeviceName, DeviceID in Devices
List .= "(" . A_Index . ") " . DeviceName . "`n", ObjRawSet(Devices2, A_Index, DeviceID)
;~ MsgBox % List
;~ InputBox n,, % List,,,,,,,, 1 ;Use to determine device number
;~ MsgBox % Devices2[n] ; Use to determine device number
;NONAME NOTE. change value of [n] to specific device number (devicenum)
;IPolicyConfig::SetDefaultEndpoint
IPolicyConfig := ComObjCreate("{870af99c-171d-4f9e-af0d-e63df40c2bc9}", "{F8679F50-850A-41CF-9C72-430F290290C8}") ;00000102-0000-0000-C000-000000000046 00000000-0000-0000-C000-000000000046
R := DllCall(NumGet(NumGet(IPolicyConfig+0)+13*A_PtrSize), "UPtr", IPolicyConfig, "Str", Devices2[devicenum], "UInt", 0, "UInt")
ObjRelease(IPolicyConfig)
;~ MsgBox % Format("0x{:08X}", R) ;error message
return
}
I think the problem is with my toggle method, where I cant set the initial toggle value of 0 or 1 depending on the audio output during that time.
My question, Is there a way to determine the initial audio output when the script starts?
The DllCall stuff is too high level for me to figure out.