[help] Any way to detect a audio mixer change?

[zone97]

I have a script that creates hot keys for volume change. It works perfectly, except when the mixer changes. IE: if im using the built in sound card then plug in an HDMI cord and the audio changes to the hdmi, I have to close and reopen my script to get it to work again. What I would like is the program to detect when the mixer changes and restart. anyway this can be done?

[Astormooke]

I googled it and got this topic, see if you can find anything useful

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Edited October 2, 2013 by Astormooke

[mrflibblehat]

What have you done so far?

Could you post your code?

Edited October 2, 2013 by mrflibblehat

[zone97]

Here is my current code. Im sure it could be cleaned up, it was pieced together from others code.

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#NoTrayIcon
#Region ;**** Directives created by AutoIt3Wrapper_GUI ****
#AutoIt3Wrapper_Icon=icons\volume.ico
#AutoIt3Wrapper_Compile_Both=y
#AutoIt3Wrapper_Res_Comment=OSD Volume Control
#AutoIt3Wrapper_Res_Description=VolumeOSD
#AutoIt3Wrapper_Res_Fileversion=1.1.0.0
#AutoIt3Wrapper_Res_LegalCopyright=by Erik Pilsits
#AutoIt3Wrapper_Res_Language=1033
#AutoIt3Wrapper_Res_requestedExecutionLevel=asInvoker
#AutoIt3Wrapper_AU3Check_Parameters=-q -d -w 1 -w 2 -w 3 -w 4 -w 5 -w 6
#AutoIt3Wrapper_Run_After=del "%scriptdir%\%scriptfile%_Obfuscated.au3"
#AutoIt3Wrapper_Run_Obfuscator=y
#Obfuscator_Parameters=/sf /sv /om /cs=0 /cn=0
#EndRegion ;**** Directives created by AutoIt3Wrapper_GUI ****

#include <GuiConstantsEx.au3>
#include <ProgressConstants.au3>
#include <WindowsConstants.au3>
#include <Timers.au3>
#include <Misc.au3>
#include <WinAPI.au3>
#include <StaticConstants.au3>
#include <_AudioEndpointVolume.au3>

Global $gui, $prog, $label, $th, $show, $timer = -1
Global $transColor = 0x232323
Global $Level
Global $msg

Opt("GUIOnEventMode", 1)
Opt("MustDeclareVars", 1)
Opt("TrayOnEventMode", 1)
Opt("TrayAutoPause", 0)
Opt("TrayMenuMode", 3)
Opt("WinWaitDelay", 750)

TraySetIcon("icons\volume.ico")

TraySetState()
TraySetClick(16)
TrayCreateItem("Help")
TrayItemSetOnEvent(-1, "_Help")
TrayCreateItem("Exit")
TrayItemSetOnEvent(-1, "_Exit")

HotKeySet("^!1", "Sound1")
HotKeySet("^!2", "Sound2")
HotKeySet("^!3", "Sound3")
HotKeySet("^!4", "Sound4")
HotKeySet("^!5", "Sound5")
HotKeySet("^!6", "Sound6")
HotKeySet("^!7", "Sound7")
HotKeySet("^!8", "Sound8")
HotKeySet("^!9", "Sound9")
HotKeySet("^!0", "_vol_mute")

GUISetOnEvent($GUI_EVENT_CLOSE, "_Exit")

While 1
    $msg = GUIGetMsg()
        Select
        Case $msg = $GUI_EVENT_CLOSE
            ExitLoop
    EndSelect
    Sleep(250)
    $Level = _GetMasterVolumeLevelScalar()
    $Level = Round($Level)
    TraySetToolTip("Quick Volume " & $Level & "%")
WEnd

Func _vol_mute()
    _SetMute(Number(Not _GetMute()))
    If Not _GetMute() Then _SetVolume(_GetMasterVolumeLevelScalar())
EndFunc

Func Sound1()
        Local $vol
        $vol = 5
        _SetVolume($vol)
EndFunc

Func Sound2()
        Local $vol
        $vol = 15
        _SetVolume($vol)
EndFunc

Func Sound3()
        Local $vol
        $vol = 24
        _SetVolume($vol)
EndFunc

Func Sound4()
        Local $vol
        $vol = 36
        _SetVolume($vol)
EndFunc

Func Sound5()
        Local $vol
        $vol = 47
        _SetVolume($vol)
EndFunc

Func Sound6()
        Local $vol
        $vol = 60
        _SetVolume($vol)
EndFunc

Func Sound7()
        Local $vol
        $vol = 73
        _SetVolume($vol)
EndFunc

Func Sound8()
        Local $vol
        $vol = 86
        _SetVolume($vol)
EndFunc

Func Sound9()
        Local $vol
        $vol = 99
        _SetVolume($vol)
EndFunc

Func _Help()
    MsgBox(0,"How To","Usage..." & @CRLF & " " & @CRLF & "CTRL-ALT-1 = 10%" & @CRLF & "CTRL-ALT-3 = 25%" & @CRLF & "CTRL-ALT-5 = 40%" & @CRLF & "CTRL-ALT-7 = 70%" & @CRLF & "CTRL-ALT-9 = 100%" & @CRLF & "CTRL-ALT-0 = Mute")
EndFunc

Func _Exit()
;   FileDelete("*.ico")
    Exit
EndFunc

Func _SetVolume($vol)
    If _GetMute() Then
        _SetMute(0)
    EndIf
    Local $rvol = Round($vol)
    _SetMasterVolumeLevelScalar($rvol)
    GUICtrlSetData($prog, $rvol)
    GUICtrlSetData($label, $rvol)
EndFunc

[BrewManNH]

That script will never work to do what you want. GUICtrl* functions only work on AutoIt created controls running in the same script. Then you have the option set GUIOnEventMode, but you don't have a GUI. Then you're using GUIGetMsg, which even if you had a GUI wouldn't work because you have OnEvent mode set and you can't use both in the same script at the same time.