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Map to drives

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I'm wanting to populate a combo box with drives that are available to map to. So I have to somehow minus all drives that are already in use.

I've racked my brain and search the site and haven't come up with anything besides possible creating an array to list A: - Z: and then using DriveGetDrive() and to compare the two to find what drives are available. However I'm sure there has to be a better way and was wondering if anyone has a suggestion. Thanks.

Edited by wi1d

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Something like:

Dim $AllDrives
For $x = 1 to 26
    $AllDrives = $AllDrives & "|" & chr(96+$x) & ":"
$var = DriveGetDrive( "all" )
If NOT @error Then
    For $i = 1 to $var[0]
        $AllDrives = StringReplace($AllDrives,"|" & $var[$i],"")

and use $AllDrives in your Combobox

Edited by JdeB

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@JdeB: That's hard to follow....

I'm pretty sure that DriveStatus will do what you want. The message box is included to help debug....

$debug = "Drive" & @TAB & "Status" & @TAB & @TAB & "GetType" & @TAB & "MapGet" & @LF
$debug = $debug & "------" & @TAB & "-------" & @TAB & @TAB &  "-------" & @TAB & "-------"

$list = ""
For $i = Asc("B") to Asc("Z")
    $drive = Chr($i) & ":"
    If DriveStatus($drive) = "INVALID" Then $list = $list & $drive & "|"
    $debug = $debug & @LF & $drive & @TAB & DriveStatus($drive) & @TAB & @TAB & DriveGetType($drive) &  @TAB & DriveMapGet($drive)

#include <GuiConstants.au3>
GuiCreate("Example", -1, -1, 100, 100);change default posotion
    $combo = GuiCtrlCreateCombo("",50, 50, 100, 200, $CBS_DROPDOWNLIST)
    $defaultSelection = StringLeft($list,StringInStr($list,":"));the first drive letter
    $infoButton = GuiCtrlCreateButton("Debug", 200, 100, 100, 50)
    GuiCtrlSetData($combo, $list,  $defaultSelection)

While 1
    $msg = GuiGetMsg()
    If $msg = $GUI_EVENT_CLOSE Then Exit
    If $msg = $infoButton Then MsgBox(4096,"For Debugging", $debug)

Edit: Improved example.

Edited by CyberSlug

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Thanks for both examples. I really liked your use of Asc, Chr, w/ the loop. Great stuff, I wouldn't have thought of that. Thanks again.

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