detect-mic.ahk

SetBatchLines -1
SplashTextOn,,, Gathering Soundcard Info...

; Most of the pure numbers below probably don't exist in any mixer, but they're queried for completeness.
; The numbers correspond to the following items (in order): CUSTOM, BOOLEANMETER, SIGNEDMETER, PEAKMETER,
; UNSIGNEDMETER, BOOLEAN, BUTTON, DECIBELS, SIGNED, UNSIGNED, PERCENT, SLIDER, FADER, SINGLESELECT, MUX,
; MULTIPLESELECT, MIXER, MICROTIME, MILLITIME
ControlTypes = VOLUME,ONOFF,MUTE,MONO,LOUDNESS,STEREOENH,BASSBOOST,PAN,QSOUNDPAN,BASS,TREBLE,EQUALIZER,0x00000000, 0x10010000,0x10020000,0x10020001,0x10030000,0x20010000,0x21010000,0x30040000,0x30020000,0x30030000,0x30050000,0x40020000,0x50030000,0x70010000,0x70010001,0x71010000,0x71010001,0x60030000,0x61030000

ComponentTypes = MASTER,HEADPHONES,DIGITAL,LINE,MICROPHONE,SYNTH,CD,TELEPHONE,PCSPEAKER,WAVE,AUX,ANALOG,N/A

; Create a ListView and prepare for the main loop:
Gui, Add, Listview, w400 h400 vMyListView, Component Type|Control Type|Setting|Mixer
LV_ModifyCol(4, "Integer")
SetFormat, Float, 0.2 ; Limit number of decimal places in percentages to two.

Loop ; For each mixer number that exists in the system, query its capabilities.
{
  CurrMixer := A_Index
  SoundGet, Setting,,, %CurrMixer%
  if ErrorLevel = Can't Open Specified Mixer ; Any error other than this indicates that the mixer exists.
    break

  ; For each component type that exists in this mixer, query its instances and control types:
  Loop, parse, ComponentTypes, `,
  {
    CurrComponent := A_LoopField
    ; First check if this component type even exists in the mixer:
    SoundGet, Setting, %CurrComponent%,, %CurrMixer%
    if ErrorLevel = Mixer Doesn't Support This Component Type
      continue ; Start a new iteration to move on to the next component type.
    Loop ; For each instance of this component type, query its control types.
    {
      CurrInstance := A_Index
      ; First check if this instance of this instance even exists in the mixer:
      SoundGet, Setting, %CurrComponent%:%CurrInstance%,, %CurrMixer%
      ; Checking for both of the following errors allows this script to run on older versions:
      if ErrorLevel in Mixer Doesn't Have That Many of That Component Type,Invalid Control Type or Component Type
        break ; No more instances of this component type.
      ; Get the current setting of each control type that exists in this instance of this component:
      Loop, parse, ControlTypes, `,
      {
        CurrControl := A_LoopField
        SoundGet, Setting, %CurrComponent%:%CurrInstance%, %CurrControl%, %CurrMixer%
        ; Checking for both of the following errors allows this script to run on older versions:
        if ErrorLevel in Component Doesn't Support This Control Type,Invalid Control Type or Component Type
          continue
        if ErrorLevel ; Some other error, which is unexpected so show it in the results.
          Setting := ErrorLevel
        ComponentString := CurrComponent
        if CurrInstance > 1
          ComponentString = %ComponentString%:%CurrInstance%
        LV_Add("", ComponentString, CurrControl, Setting, CurrMixer)
      } ; For each control type.
    } ; For each component instance.
  } ; For each component type.
} ; For each mixer.

Loop % LV_GetCount("Col") ; Auto-size each column to fit its contents.
  LV_ModifyCol(A_Index, "AutoHdr")

SplashTextOff
Gui, Show
return

GuiClose:
ExitApp