Sound.au3 is giving me an error

[demandnothing]

i've been trying to figure out how to do a loop in a function for a music player.. the function is

Func play()
    While $linenumber < _FileCountLines($playlistpath)
        $Line = FileReadLine($playlistpath, $linenumber)
        FileDelete($songlistpath)
        _FileCreate($songlistpath)
        FileWrite($songlistpath, $Line & @CRLF)
        $Snd = SoundPlay($Line)
        $h = _SoundPos($Snd, 2)
        $i = _SoundLength($Snd, 2)
        If $h = $i Then
            $linenumber = $linenumber + 1
        EndIf
    WEnd
EndFunc   ;==>play

what i added was $Snd $h and $i, so that it'll wait for the song to finish before going to the next song.. which it seems like it should work, but i get an array error from Sound.au3.. it says exactly this:

C:\Program Files\AutoIt3\Include\Sound.au3 (442) : ==> Array variable has incorrect number of subscripts or subscript dimension range exceeded.:
If $aSndID[1] <> 0 Then
If ^ ERROR
->20:43:40 AutoIT3.exe ended.rc:1

which points to _SoundPos function in the au3 file:

Func _SoundPos($aSndID, $iMode = 1)
    ;Declare variables
    Local $iSndPosMs, $iSndPosMin, $iSndPosHour, $iSndPosSecs, $sSndPosFormat, $vTemp
    ;validate $iMode
    If $iMode <> 1 And $iMode <> 2 Then Return SetError(1, 0, 0)
    If Not IsArray($aSndID) Then
        If Not FileExists($aSndID) Then Return SetError(3, 0, 0) ; invalid file/alias
        $vTemp = FileGetShortName($aSndID)
        Dim $aSndID[1] = [$vTemp]
    EndIf
    If StringInStr($aSndID[0], '!') Then Return SetError(3, 0, 0) ; invalid file/alias

    ;tell mci to use time in milliseconds
    __mciSendString("set " & $aSndID[0] & " time format miliseconds")
    ;receive position of sound
    $iSndPosMs = Number(__mciSendString("status " & $aSndID[0] & " position", 255))
    If $aSndID[1] <> 0 Then
        $iSndPosMs -= $aSndID[2]
    EndIf

    ;modify data and assign to variables
    _TicksToTime($iSndPosMs, $iSndPosHour, $iSndPosMin, $iSndPosSecs)

    ;assign formatted data to $sSndPosFormat
    $sSndPosFormat = StringFormat("%02i:%02i:%02i", $iSndPosHour, $iSndPosMin, $iSndPosSecs)
    ;return correct variable
    If $iMode = 1 Then Return $sSndPosFormat
    If $iMode = 2 Then Return $iSndPosMs
EndFunc   ;==>_SoundPos

specifically:

;receive position of sound
    $iSndPosMs = Number(__mciSendString("status " & $aSndID[0] & " position", 255))
    If $aSndID[1] <> 0 Then
        $iSndPosMs -= $aSndID[2]
    EndIf

i've never opened (let alone edited) Sound.au3 before this error occured

Edited October 20, 2009 by demandnothing

[AdmiralAlkex]

Look at what _SoundPlay() returns, it's just 1 for success or 0 for failure so of course you can't use _SoundPos() with that! You are supposed to use the return value from _SoundOpen() in _SoundPos(). Check all of these functions in the helpfile and it will be clear how you should do.

[demandnothing]

according to the functions list SoundPlay returns 1 with success or failure

Func play()
    While $linenumber < _FileCountLines($playlistpath) ;Change the number to however many songs youre gonna have in your playlist
        $Line = FileReadLine($playlistpath, $linenumber)
        FileDelete($songlistpath)
        _FileCreate($songlistpath)
        FileWrite($songlistpath, $Line & @CRLF)
        $aSnd = _SoundOpen($Line)
        $h = _SoundPos($aSnd, 2)
        $i = _SoundLength($aSnd, 2)
        If $h = $i Then
            $linenumber = $linenumber + 1
        EndIf
    WEnd
EndFunc   ;==>play

fails.. no buttons work.. i dont get the error but it doesnt work

Func play()
    While $linenumber < _FileCountLines($playlistpath) ;Change the number to however many songs youre gonna have in your playlist
        $Line = FileReadLine($playlistpath, $linenumber)
        FileDelete($songlistpath)
        _FileCreate($songlistpath)
        FileWrite($songlistpath, $Line & @CRLF)
        $aSnd = _SoundOpen($Line)
         $Snd = _SoundPlay($aSnd)
        $h = _SoundPos($Snd, 2)
        $i = _SoundLength($Snd, 2)
        If $h = $i Then
            $linenumber = $linenumber + 1
        EndIf
    WEnd
EndFunc   ;==>play

gives me the same error.. but its not the same as SoundPlay, its _SoundPlay lol

edit: compliments on your music player.. very nice.. glad to have you helping me

Edited October 20, 2009 by demandnothing