UDF _GetCdDriveInfo()

[BugFix]

Hi friends,

i've testet "CdTray" and i've missed a possibility to find automatic drive-letters and device-description of my CD/DVD-devices.

By the way i've create the UDF _GetCdDriveInfo(). You can read out drive-letter, device-name and firmware-version of first, second or both devices (if you have).

I use the actually beta-version.

For better testing, in my attachement is integrated a GUI.

Here the code:

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;==================================================================================================
; Function:     _GetCdDriveInfo($cd_pos, $cd_info_type)
;
; Description:  Get Info of physical CD/DVD-drives (Drive-Letter, Device-Name, Firmware)
;
; Parameter(s): $cd_pos
;                   1= First Drive;
;                   2= Second Drive;
;                   3= Info of Both Drives with Seperator " | "
;               $cd_info_type
;                   1= Drive-Letter only
;                   2= Device-Name only
;                   3= Firmware-Version only
;                   4= Drive-Letter & " " & Device-Name
;                   5= Drive-Letter & " " & Device-Name & " " & Firmware-Version
;
; Return Value: i.e. D:[ HL-DT-ST DVDRAM GSA-4081B][ v.A100] | [E:][ TOSHIBA DVD-ROM SD-M1612][ v.1004]
;               Sets @ERROR to: 1 - no CD/DVD-Device found
;                               2 - Second CD/DVD-Device not found
;               no @ERROR sets  if $cd_pos= 3 and Second CD/DVD-Device was'nt found
;                               Return only First Drive Info
;
; Author:       BugFix (bug_fix@web.de)
;==================================================================================================
#include <String.au3>

Func _GetCdDriveInfo($cd_pos = 1, $cd_info_type = 1)
    $cd1 = ""
    $cd1_name = "no_drive"
    $cd1_fw = ""
    $cd2 = ""
    $cd2_name = "no_drive"
    $cd2_fw = ""
    $p2 = 0
    
    For $a = 68 To 90
        $drv = Chr($a)
        $reg = RegRead("HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices", "\DosDevices\" & $drv & ":")
        $val = ""
        $name = ""
        For $i = 1 To StringLen($reg) - 2 Step 2
            $tmp = _HexToString(StringMid($reg, $i, 2))
            If $tmp <> "" Then
                $val = $val & $tmp
            EndIf
        Next
        $p1 = StringInStr($val, "#") + 1
        $type = StringMid($val, $p1, 5)
        If $type = "CdRom" Then
            $p2 = StringInStr($val, "__")
            If $p2 > 6 Then
                $name = StringMid($val, $p1 + 5, $p2- ($p1 + 5))
                $name = StringReplace($name, "_", " ")
                If $cd1 = "" Then
                    $cd1 = $drv & ":"
                    $cd1_name = $name
                Else
                    $cd2 = $drv & ":"
                    $cd2_name = $name
                EndIf
                $p3 = StringInStr($val, "#", 0, 2)
                For $i = $p3 - 1 To $p2 Step - 1
                    If StringMid($val, $i, 1) <> "_" Then
                        $pos_fw_end = $i
                        ExitLoop
                    EndIf
                Next
                For $i = $pos_fw_end To $p2 Step - 1
                    If StringMid($val, $i, 1) = "_" Then
                        $pos_fw_begin = $i+1
                        $fw_len = $pos_fw_end - $pos_fw_begin +1
                        ExitLoop
                    EndIf
                Next
                $cd_fw = "v." & StringMid($val, $pos_fw_begin, $fw_len)
                If $cd1_fw = "" Then
                    $cd1_fw = $cd_fw
                Else
                    $cd2_fw = $cd_fw
                EndIf
            EndIf
        EndIf
        $p2 = 0
    Next
    If $cd1_name = "no_drive" And $cd2_name = "no_drive" Then
        SetError(1)
        Return False
    EndIf
    If $cd2_name = "no_drive" And $cd_pos = 2 Then
        SetError(2)
        Return False
    EndIf
    Select
        Case ($cd_pos = 1 Or ($cd_pos = 3 And $cd2_name = "no_drive")) And $cd_info_type = 1
            Return $cd1
        Case ($cd_pos = 1 Or ($cd_pos = 3 And $cd2_name = "no_drive")) And $cd_info_type = 2
            Return $cd1_name
        Case ($cd_pos = 1 Or ($cd_pos = 3 And $cd2_name = "no_drive")) And $cd_info_type = 3
            Return $cd1_fw
        Case ($cd_pos = 1 Or ($cd_pos = 3 And $cd2_name = "no_drive")) And $cd_info_type = 4
            Return $cd1 & " " & $cd1_name
        Case ($cd_pos = 1 Or ($cd_pos = 3 And $cd2_name = "no_drive")) And $cd_info_type = 5
            Return $cd1 & " " & $cd1_name & " " & $cd1_fw
        Case $cd_pos = 2 And $cd_info_type = 1
            Return $cd2
        Case $cd_pos = 2 And $cd_info_type = 2
            Return $cd2_name
        Case $cd_pos = 2 And $cd_info_type = 3
            Return $cd2_fw
        Case $cd_pos = 2 And $cd_info_type = 4
            Return $cd2 & " " & $cd2_name
        Case $cd_pos = 2 And $cd_info_type = 5
            Return $cd2 & " " & $cd2_name & " " & $cd2_fw
        Case $cd_pos = 3 And $cd_info_type = 1
            Return $cd1 & " | " & $cd2
        Case $cd_pos = 3 And $cd_info_type = 2
            Return $cd1_name & " | " & $cd2_name
        Case $cd_pos = 3 And $cd_info_type = 3
            Return $cd1_fw & " | " & $cd2_fw
        Case $cd_pos = 3 And $cd_info_type = 4
            Return $cd1 & " " & $cd1_name & " | " & $cd2 & " " & $cd2_name
        Case $cd_pos = 3 And $cd_info_type = 5
            Return $cd1 & " " & $cd1_name & " " & $cd1_fw & " | " & $cd2 & " " & $cd2_name & " " & $cd2_fw
    EndSelect
EndFunc  ;==>_GetCdDriveInfo

_GetCdDriveInfo.au3