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Help with WMI object

2 posts in this topic

#1 ·  Posted (edited)

Hi, how are everyone, first of all sorry for my bad english. So going to the question I am having some dificulties with my script, i am making a program that detects when some usb memory its connected and retrieve some information from it, when the WM_DEVICECHANGE ocurre i call an script that retrieve information using the object wmi, but they gave me an error with the wmi object, if i call the function manually its work fine, so the problem its when it called from that function, below its an example that i make to show the problem.

#include <GUIConstantsEx.au3>
#include <String.au3>

Global Const $WM_DEVICECHANGE = 0x0219
Global Const $DBT_DEVICEARRIVAL = 0x8000 ; Found New Hardware
Global Const $DBT_DEVICEREMOVECOMPLETE = 0x8004 ; The device is disconnected

Global Const $DBT_DEVNODES_CHANGED = 0x0007
Global Const $DBT_DEVTYP_OEM = 0x00000000 ; oem-defined device type
Global Const $DBT_DEVTYP_DEVNODE = 0x00000001 ; devnode number
Global Const $DBT_DEVTYP_VOLUME = 0x00000002; logical partition
Global Const $DBT_DEVTYP_PORT = 0x00000003 ; serial, parallel
Global Const $DBT_DEVTYP_NET = 0x00000004 ; network resource

Global $k = 0
;~ getnfo('f:')
$Gui = GUICreate("WM_DEVICECHANGE", 370, 140)
GUICtrlCreateLabel('WM_DEVICECHANGE function is performed when connecting or disconnecting devices to the system. Try inserting the stick', 5, 5, 360, 70)


Until GUIGetMsg() = -3

Func WM_DEVICECHANGE($hWnd, $Msg, $wParam, $lParam)
    $k += 1
    WinSetTitle($Gui, '', 'Connection ' & $k)

        Local $DEV_BROADCAST_VOLUME = DllStructCreate("int dbcvsize;int dbcvdevicetype;int dbcvreserved;int dbcvunitmask;" & _
                "ushort dbcvflags", $lParam)
        Local $iDriveType = DllStructGetData($DEV_BROADCAST_VOLUME, "dbcvdevicetype")
        Return $GUI_RUNDEFMSG

    ; If the device is not a logical drive, the output of the function
    If $iDriveType <> $DBT_DEVTYP_VOLUME Then Return $GUI_RUNDEFMSG

    Local $iMask = DllStructGetData($DEV_BROADCAST_VOLUME, "dbcvunitmask")
    $iMask = Log($iMask) / Log(2)

    Local $iDrive = Chr(65 + $iMask) & ":"

    Switch $wParam
        Case $DBT_DEVICEARRIVAL ; detection device
            TrayTip("WM_DEVICECHANGE", "device connected. Drive: "&$iDrive&" Info: "& @CRLF&getnfo($iDrive), 5, 1)
        Case $DBT_DEVICEREMOVECOMPLETE ; Disconnecting
            TrayTip("WM_DEVICECHANGE", "device disconnected", 5, 2)


Func getnfo($iDrive)
            $PNPid = RegRead("HKLM\SYSTEM\MountedDevices", "\DosDevices\" & $iDrive)
            $PNPid = _HexToString(StringReplace(StringReplace($PNPid, "0x", ""), "00", ""))
            $PNPid = StringSplit($PNPid, '#', 2)
            $PNPid = $PNPid[2]

    Global $objWMIService = ObjGet("winmgmts:\\localhost\root\CIMV2")
$wbemFlagReturnImmediately = 0x10
$wbemFlagForwardOnly = 0x20
local $colItems = ""

    $colItems = $objWMIService.ExecQuery("SELECT * FROM Win32_PnPEntity where DeviceID like 'USB\\%'", "WQL", $wbemFlagReturnImmediately + $wbemFlagForwardOnly)
    If IsObj($colItems) Then
        For $objItem In $colItems
            $PNPidChk = $objItem.DeviceID
            $PNPidChk = StringTrimLeft($PNPidChk, StringInStr($PNPidChk, "\", 0, -1)) ;Return Ugly Full PNPDeviceID
            If $PNPidChk = StringTrimRight($PNPid,2) Then
                $DevId = $objItem.DeviceID
                $DevId = StringMid($DevId, StringInStr($DevId, "Vid"), 17)
                return $tMemHid
                ConsoleWrite('@@ Debug(' & @ScriptLineNumber & ') : $tMemHid = ' & $tMemHid & @CRLF & '>Error code: ' & @error & @CRLF) ;### Debug Console
;~     _ArrayDisplay($aMemHids)


Edited by JLogan3o13

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#2 ·  Posted

Moved to the appropriate forum, not sure how we can make this text in the DEV forum any bigger/more clear:


Do not create AutoIt-related topics here, use the AutoIt General Help and Support or AutoIt Technical Discussion forums.

Also, please use code tags (<> on the toolbar) in the future. It gives a nice scrolling code box and makes things much easier to read.

√-1 2^3 ∑ π, and it was delicious!

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