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[效率算法] 帮忙看下u盘挂机锁里面DiskEjection那里错了帮忙修改下

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发表于 2010-2-26 23:48:59 | 显示全部楼层 |阅读模式
http://www.autoitx.com/forum.php ... p;extra=&page=1
帮忙看下u盘挂机锁里面DiskEjection那里错了帮忙修改下
; #### Flags for _CM_Get_Class_Devs ####
; ================================================================================
Const $DIGCF_DEFAULT = 1
Const $DIGCF_PRESENT = 2
Const $DIGCF_ALLCLASSES = 4
Const $DIGCF_PROFILE = 8
Const $DIGCF_DEVICEINTERFACE = 16
; ================================================================================

; #### Access rights for _CM_Create_File ####
; ================================================================================
Const $GENERIC_ALL = 0x10000000
Const $GENERIC_EXECUTE = 0x20000000
Const $GENERIC_WRITE = 0x40000000
Const $GENERIC_READ = 0x80000000
; ================================================================================

; #### IO Control codes #####
; ================================================================================
Const $IOCTL_STORAGE_BASE = 0x2D
Const $IOCTL_STORAGE_MEDIA_REMOVAL = 0x2D4804
Const $IOCTL_STORAGE_EJECT_MEDIA = 0x2D4808
Const $IOCTL_STORAGE_GET_DEVICE_NUMBER = 0x2D1080
; ================================================================================

; #### DDK, SDK Structures ####
; ================================================================================
Const $tagSP_DEVINFO_DATA = "dword Size;byte Guid[16];dword DevInst;ulong_ptr Reserved"
Const $tagSP_DEVICE_INTERFACE_DATA = "dword Size;byte Guid[16];dword Flags;ulong_ptr Reserved"
Const $tagSTORAGE_DEVICE_NUMBER = "int DeviceType;ulong DeviceNumber;ulong PartitionNumber"
; ================================================================================

; #### Handle value, Interface class GUID ####
; ================================================================================
Const $CM_DRP_REMOVAL_POLICY = 0x20
Const $DN_REMOVABLE = 0x00004000
Const $SPDRP_REMOVAL_POLICY = 0x1F
Const $SPDRP_REMOVAL_POLICY_HW_DEFAULT = 0x20
Const $INVALID_HANDLE_VALUE = 0xFFFFFFFF
Const $GUID_DEVINTERFACE_DISK = "{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}"
; ================================================================================

; #### Removal policies ####
; ================================================================================
Const $CM_REMOVAL_POLICY_EXPECT_NO_REMOVAL = 1
Const $CM_REMOVAL_POLICY_EXPECT_ORDERLY_REMOVAL = 2
Const $CM_REMOVAL_POLICY_EXPECT_SURPRISE_REMOVAL = 3
; ================================================================================

Func _CM_Create_File($sFilePath, $iDesiredAccess, $iShareMode, $pSecur, $iCreationFlags, $iAttrFlags, $hTemplate = 0)
        Local $hFile
        $hFile = DllCall("Kernel32.dll", "long", "CreateFile", "str", $sFilePath, "dword", $iDesiredAccess, _
                        "dword", $iShareMode, "ptr", $pSecur, "dword", $iCreationFlags, _
                        "dword", $iAttrFlags, "long", $hTemplate)
        If $hFile[0] = $INVALID_HANDLE_VALUE Then
                Return SetError(_CM_Get_Last_Error(), 0, -1)
        Else
                Return $hFile[0]
        EndIf
EndFunc        ;==>_CM_Create_File

Func _CM_Close_Handle($hHandle)
        Local $iResult
        $iResult = DllCall("Kernel32.dll", "int", "CloseHandle", "long", $hHandle)
        Return $iResult[0]
EndFunc        ;==>_CM_Close_Handle

Func _CM_Get_Last_Error()
        Local $iResult = DllCall("Kernel32.dll", "long", "GetLastError")
        Return $iResult[0]
EndFunc        ;==>_CM_Get_Last_Error

Func _CM_Device_IO_Control($hFile, $iControlCode, $pIn, $iIn, $pOut, $iOut, $pOverlapped = 0)
        Local $iResult

        If IsDllStruct($pIn) Then $pIn = DllStructGetPtr($pIn)
        If IsDllStruct($pOut) Then $pOut = DllStructGetPtr($pOut)
        If IsDllStruct($pOverlapped) Then $pOverlapped = DllStructGetPtr($pOverlapped)

        $iResult = DllCall("Kernel32.dll", "int", "DeviceIoControl", "long", $hFile, _
                        "dword", $iControlCode, "ptr", $pIn, "dword", $iIn, _
                        "ptr", $pOut, "dword", $iOut, "dword*", 0, "ptr", $pOverlapped)
        If $iResult[0] Then
                Return 1
        Else
                Return SetError(_CM_Get_Last_Error(), 0, 0)
        EndIf
EndFunc        ;==>_CM_Device_IO_Control

Func _CM_Get_Drive_Disk_Number($hDrive)
        Local $fResult, $tBuffer, $iType, $iNumber

        $tBuffer = DllStructCreate($tagSTORAGE_DEVICE_NUMBER)
        
        $fResult = _CM_Device_IO_Control($hDrive, $IOCTL_STORAGE_GET_DEVICE_NUMBER, _
                        0, 0, $tBuffer, DllStructGetSize($tBuffer), 0)
        If $fResult = 0 Then Return SetError(@error, -1, -1)
        $iType = DllStructGetData($tBuffer, "DeviceType")
        $iNumber = DllStructGetData($tBuffer, "DeviceNumber")
        Return SetError(_CM_Free_Var($tBuffer), $iType, $iNumber)
EndFunc        ;==>_CM_Get_Drive_Disk_Number

Func _CM_GUID_From_String($sGUID)
        Local $tGUID, $iResult, $pGUID

        $tGUID = DllStructCreate("byte GUID[16]")
        $pGUID = DllStructGetPtr($tGUID)

        $iResult = DllCall("Ole32.dll", "int", "CLSIDFromString", "wstr", $sGUID, "ptr", $pGUID)
        Return SetError($iResult[0], 0, $tGUID)
EndFunc        ;==>_CM_GUID_From_String

Func _CM_Free_Var(ByRef $vVar)
        $vVar = 0
        Return $vVar
EndFunc        ;==>_CM_Free_Var

Func _CM_Get_Class_Devs($iFlags, $pGUID = 0, $sEnumerator = "", $hWnd = 0)
        Local $iResult, $sType = "ptr"

        If $sEnumerator <> "" Then $sType = "str"
        If IsDllStruct($pGUID) Then $pGUID = DllStructGetPtr($pGUID)

        $iResult = DllCall("Setupapi.dll", "ptr", "SetupDiGetClassDevs", "ptr", $pGUID, _
                        $sType, $sEnumerator, "hWnd", $hWnd, "dword", $iFlags)
        If $iResult[0] = $INVALID_HANDLE_VALUE Then
                Return SetError(_CM_Get_Last_Error(), 0, -1)
        Else
                Return $iResult[0]
        EndIf
EndFunc        ;==>_CM_Get_Class_Devs

Func _CM_Enum_Device_Interfaces($hDevs, $pSP_DEVINFO_DATA, $pClassGUID, $iIndex, ByRef $tSP_DEVICE_INTERFACE_DATA)
        Local $iResult, $pSP_DEVICE_INTERFACE_DATA

        If IsDllStruct($pClassGUID) Then $pClassGUID = DllStructGetPtr($pClassGUID)
        If IsDllStruct($pSP_DEVINFO_DATA) Then
                $pSP_DEVINFO_DATA = DllStructGetPtr($pSP_DEVINFO_DATA)
        EndIf
        If IsDllStruct($tSP_DEVICE_INTERFACE_DATA) = 0 Then
                $tSP_DEVICE_INTERFACE_DATA = DllStructCreate($tagSP_DEVICE_INTERFACE_DATA)
                DllStructSetData($tSP_DEVICE_INTERFACE_DATA, "Size", 28)
        EndIf
        $pSP_DEVICE_INTERFACE_DATA = DllStructGetPtr($tSP_DEVICE_INTERFACE_DATA)
        $iResult = DllCall("Setupapi.dll", "int", "SetupDiEnumDeviceInterfaces", "ptr", $hDevs, _
                        "ptr", $pSP_DEVINFO_DATA, "ptr", $pClassGUID, "dword", $iIndex, _
                        "ptr", $pSP_DEVICE_INTERFACE_DATA)
        If $iResult[0] <> 0 Then
                Return 1
        Else
                Return SetError(_CM_Get_Last_Error(), 0, 0)
        EndIf
EndFunc        ;==>_CM_Enum_Device_Interfaces

Func _CM_Get_Device_Interface_Detail($hDevs, $pSP_DEVICE_INTERFACE_DATA, ByRef $tSP_DEVINFO_DATA)
        Local $iResult, $pSP_DEVINFO_DATA, $tDevInterfaceDetail, $sDevPath, $iSysError = 0

        If IsDllStruct($pSP_DEVICE_INTERFACE_DATA) Then
                $pSP_DEVICE_INTERFACE_DATA = DllStructGetPtr($pSP_DEVICE_INTERFACE_DATA)
        EndIf
        If IsDllStruct($tSP_DEVINFO_DATA) = 0 Then
                $tSP_DEVINFO_DATA = DllStructCreate($tagSP_DEVINFO_DATA)
                DllStructSetData($tSP_DEVINFO_DATA, "Size", 28)
        EndIf
        $pSP_DEVINFO_DATA = DllStructGetPtr($tSP_DEVINFO_DATA)
        $iResult = DllCall("Setupapi.dll", "int", "SetupDiGetDeviceInterfaceDetail", "ptr", $hDevs, _
                        "ptr", $pSP_DEVICE_INTERFACE_DATA, "ptr", 0, "dword", 0, _
                        "dword*", 0, "ptr", $pSP_DEVINFO_DATA)
        If $iResult[5] - 4 < 1 Then Return SetError(_CM_Get_Last_Error(), 0, "")
        $tDevInterfaceDetail = DllStructCreate("dword;char[" & $iResult[5] - 4 & "]")
        DllStructSetData($tDevInterfaceDetail, 1, 5)

        $iResult = DllCall("Setupapi.dll", "int", "SetupDiGetDeviceInterfaceDetail", _
                        "ptr", $hDevs, "ptr", $pSP_DEVICE_INTERFACE_DATA, _
                        "ptr", DllStructGetPtr($tDevInterfaceDetail), "dword", $iResult[5], _
                        "dword*", 0, "ptr", $pSP_DEVINFO_DATA)
        If $iResult[0] = 0 Then $iSysError = _CM_Get_Last_Error()
        $sDevPath = DllStructGetData($tDevInterfaceDetail, 2)
        Return SetError($iSysError, _CM_Free_Var($tDevInterfaceDetail), $sDevPath)
EndFunc        ;==>_CM_Get_Device_Interface_Detail

Func _CM_Get_Drive_Type($sDrive)
        Local $iResult, $hDevs, $tDevInfo, $tDevIfInfo, $hDevInst, $iIndex, $iFlags, $tGUID, $hDisk, $iDiskNumber, $sDevicePath
        Local $aType[8] = ["UNKNOWN", "NO_ROOT_DIR", "REMOVABLE", "FIXED", "REMOTE", "CDROM", "RAMDISK", "REMOVABLE_DISK"]

        $iResult = DllCall("Kernel32.dll", "uint", "GetDriveType", "str", $sDrive)
        If $iResult[0] <> 3 Then Return $aType[$iResult[0]]

        $sDrive = "\\." & $sDrive
        If StringRight($sDrive, 1) = "" Then $sDrive = StringTrimRight($sDrive, 1)
        $hDisk = _CM_Create_File($sDrive, bitOR($GENERIC_READ, $GENERIC_WRITE), 3, 0, 3, 0)
        $iDiskNumber = _CM_Get_Drive_Disk_Number($hDisk)
        $iResult = _CM_Close_Handle($hDisk)
        If $iDiskNumber = -1 Then Return "UNKNOWN"

        $iFlags = bitOR($DIGCF_PRESENT, $DIGCF_DEVICEINTERFACE)
        $tGUID = _CM_GUID_From_String($GUID_DEVINTERFACE_DISK)
        $hDevs = _CM_Get_Class_Devs($iFlags, $tGUID)
        If $hDevs < 1 Then Return "UNKNOWN"

        $iFlags = bitOR($GENERIC_READ, $GENERIC_WRITE)
        While _CM_Enum_Device_Interfaces($hDevs, 0, $tGUID, $iIndex, $tDevIfInfo)
                $iIndex += 1
                $sDevicePath = _CM_Get_Device_Interface_Detail($hDevs, $tDevIfInfo, $tDevInfo)
                $hDisk = _CM_Create_File($sDevicePath, $iFlags, 3, 0, 3, 0)
                If $hDisk < 1 Then ContinueLoop
                If _CM_Get_Drive_Disk_Number($hDisk) <> $iDiskNumber Then
                        ContinueLoop _CM_Close_Handle($hDisk)
                EndIf
                _CM_Close_Handle($hDisk)
                $iResult = _CM_Get_Device_Registry_Property($hDevs, $tDevInfo, $SPDRP_REMOVAL_POLICY)
                _CM_Destroy_Device_Info_List($hDevs)
                If bitAND($iResult, $CM_REMOVAL_POLICY_EXPECT_ORDERLY_REMOVAL) = 2 Then
                        Return SetExtended(_CM_Free_Var($tDevInfo), "REMOVABLE_DISK")
                Else
                        Return SetExtended(_CM_Free_Var($tDevInfo), "FIXED")
                EndIf
        WEnd
EndFunc        ;==>_CM_Get_Drive_Type

Func _CM_Safely_Eject_Device($sDrive)
        Local $iDiskNum, $hDisk, $fResult, $sDevicePath, $iAccessMask, $iIndex, $iDevNodeStat
        Local $sDeviceID, $iMask, $tClassGUID, $hDevs, $tDevInfo, $tDevIfInfo, $hDevInst, $hDevInst1

        $iAccessMask = bitOR($GENERIC_READ, $GENERIC_WRITE)
        If StringRight($sDrive, 1) = "" Then $sDrive = StringTrimRight($sDrive, 1)
        $hDisk = _CM_Create_File("\\." & $sDrive, $iAccessMask, 3, 0, 3, 0)
        If $hDisk < 1 Then Return SetError(@error, 0, 0)
        $iDiskNum = _CM_Get_Drive_Disk_Number($hDisk)
        If $iDiskNum = -1 Then Return SetError(@error, _CM_Close_Handle($hDisk), 0)
        _CM_Close_Handle($hDisk)

        Switch _CM_Get_Drive_Type($sDrive)
        Case "CDROM"
                $hDisk = _CM_Create_File("\\.\CdRom" & $iDiskNum, $iAccessMask, 3, 0, 3, 0)
                If $hDisk < 1 Then Return SetError(@error, 0, 0)
                $fResult = _CM_Device_IO_Control($hDisk, $IOCTL_STORAGE_EJECT_MEDIA, 0, 0, 0, 0)
                Return SetError(@error, _CM_Close_Handle($hDisk), $fResult)
        Case "REMOVABLE", "REMOVABLE_DISK"
                $iMask = bitOR($DIGCF_PRESENT, $DIGCF_DEVICEINTERFACE)
                $tClassGUID = _CM_GUID_From_String($GUID_DEVINTERFACE_DISK)
                $hDevs = _CM_Get_Class_Devs($iMask, $tClassGUID)
                While _CM_Enum_Device_Interfaces($hDevs, 0, $tClassGUID, $iIndex, $tDevIfInfo)
                        $iIndex += 1
                        $sDevicePath = _CM_Get_Device_Interface_Detail($hDevs, $tDevIfInfo, $tDevInfo)
                        $hDisk = _CM_Create_File($sDevicePath, $iAccessMask, 3, 0, 3, 0)
                        If $hDisk < 1 Then ContinueLoop
                        If _CM_Get_Drive_Disk_Number($hDisk) <> $iDiskNum Then
                                ContinueLoop _CM_Close_Handle($hDisk)
                        EndIf
                        _CM_Close_Handle($hDisk)
                        _CM_Destroy_Device_Info_List($hDevs)
                        $hDevInst = DllStructGetData($tDevInfo, "DevInst")
                        $hDevInst1 = $hDevInst
                        $iDevNodeStat = _CM_Get_DevNode_Status($hDevInst)
                        If bitAND($iDevNodeStat, $DN_REMOVABLE) <> $DN_REMOVABLE Then
                                $hDevInst1 = _CM_Get_Parent($hDevInst)
                                $iDevNodeStat = _CM_Get_DevNode_Status($hDevInst1)
                                If bitAND($iDevNodeStat, $DN_REMOVABLE) <> $DN_REMOVABLE Then
                                        Return SetError(50, 0, 0)
                                EndIf
                        EndIf
                        $sDeviceID = _CM_Get_Device_ID($hDevInst1)
                        Select
                        Case _CM_Create_Device_Devs($sDeviceID, $hDevs, $tDevInfo) = 0
                                Return SetError(@error, 0, 0)
                        Case _CM_Remove_Device($hDevs, $tDevInfo) = 0
                                Return SetError(@error, _CM_Destroy_Device_Info_List($hDevs), 0)
                        Case Else
                                Return _CM_Destroy_Device_Info_List($hDevs) * 0 + 1
                        EndSelect
                WEnd
        Case Else
                Return SetError(50, 0, 0)
        EndSwitch
EndFunc        ;==>_CM_Safely_Eject_Device

Func _CM_Get_Device_ID($hDevInst)
        Local $iResult
        $iResult = DllCall("Setupapi.dll", "int", "CM_Get_Device_ID", "dword", $hDevInst, _
                        "str", "", "ulong", 260, "ulong", 0)
        Return SetError($iResult[0], 0, $iResult[2])
EndFunc        ;==>_CM_Get_Device_ID

Func _CM_Create_Device_Info_List($pClassGUID = 0, $hWnd = 0)
        Local $iResult

        If IsDllStruct($pClassGUID) Then $pClassGUID = DllStructGetPtr($pClassGUID)
        $iResult = DllCall("Setupapi.dll", "ptr", "SetupDiCreateDeviceInfoList", _
                        "ptr", $pClassGUID, "hWnd", $hWnd)
        Return SetError(_CM_Get_Last_Error(), 0, $iResult[0])
EndFunc        ;==>_CM_Create_Device_Info_List

Func _CM_Open_Device_Info($hDevs, $sDeviceID, ByRef $tSP_DEVINFO_DATA, $iFlags = 0)
        Local $iResult, $pSP_DEVINFO_DATA

        If Not IsDllStruct($tSP_DEVINFO_DATA) Then
                $tSP_DEVINFO_DATA = DllStructCreate($tagSP_DEVINFO_DATA)
                DllStructSetData($tSP_DEVINFO_DATA, "Size", 28)
        EndIf
        $pSP_DEVINFO_DATA = DllStructGetPtr($tSP_DEVINFO_DATA)
        $iResult = DllCall("Setupapi.dll", "int", "SetupDiOpenDeviceInfo", "ptr", $hDevs, _
                        "str", $sDeviceID, "hWnd", 0, "dword", $iFlags, _
                        "ptr", $pSP_DEVINFO_DATA)
        Return SetError(_CM_Get_Last_Error(), 0, $iResult[0])
EndFunc        ;==>_CM_Open_Device_Info

Func _CM_Set_Selected_Device($hDevs, $pSP_DEVINFO_DATA)
        Local $iResult

        If IsDllStruct($pSP_DEVINFO_DATA) Then
                $pSP_DEVINFO_DATA = DllStructGetPtr($pSP_DEVINFO_DATA)
        EndIf
        $iResult = DllCall("Setupapi.dll", "int", "SetupDiSetSelectedDevice", "ptr", $hDevs, _
                        "ptr", $pSP_DEVINFO_DATA)
        Return SetError(_CM_Get_Last_Error(), 0, $iResult[0])
EndFunc        ;==>_CM_Set_Selected_Device

Func _CM_Get_DevNode_Status($hDevInst)
        Local $iResult
        $iResult = DllCall("Setupapi.dll", "long", "CM_Get_DevNode_Status", "ulong*", 0, _
                        "ulong*", 0, "dword", $hDevInst, "ulong", 0)
        Return SetError($iResult[0], $iResult[2], $iResult[1])
EndFunc        ;==>_CM_Get_DevNode_Status

Func _CM_Get_Parent($hDevInst)
        Local $iResult
        $iResult = DllCall("Setupapi.dll", "long", "CM_Get_Parent", "dword*", 0, _
                        "dword", $hDevInst, "ulong", 0)
        Return SetError($iResult[0], 0, $iResult[1])
EndFunc        ;==>_CM_Get_Parent

Func _CM_Create_Device_Devs($sDeviceID, ByRef $hDevs, ByRef $tSP_DEVINFO_DATA)
        $hDevs = _CM_Create_Device_Info_List()
        If $hDevs < 1 Then Return SetError(@error, 0, 0)

        Select
        Case _CM_Open_Device_Info($hDevs, $sDeviceID, $tSP_DEVINFO_DATA) = 0
                Return SetError(@error, _CM_Destroy_Device_Info_List($hDevs), 0)
        Case _CM_Set_Selected_Device($hDevs, $tSP_DEVINFO_DATA) = 0
                Return SetError(@error, _CM_Destroy_Device_Info_List($hDevs), 0)
        Case Else
                Return 1
        EndSelect
EndFunc        ;==>_CM_Create_Device_Devs

Func _CM_Remove_Device($hDevs, $pSP_DEVINFO_DATA)
        Local $iResult
        If IsDllStruct($pSP_DEVINFO_DATA) Then
                $pSP_DEVINFO_DATA = DllStructGetPtr($pSP_DEVINFO_DATA)
        EndIf
        $iResult = DllCall("Setupapi.dll", "int", "SetupDiRemoveDevice", "ptr", $hDevs, _
                        "ptr", $pSP_DEVINFO_DATA)
        Return SetError(_CM_Get_Last_Error(), 0, $iResult[0])
EndFunc        ;==>_CM_Remove_Device

Func _CM_Destroy_Device_Info_List($hDevs)
        Local $iResult
        $iResult = DllCall("Setupapi.dll", "int", "SetupDiDestroyDeviceInfoList", "ptr", $hDevs)
        Return SetError(_CM_Get_Last_Error(), 0, $iResult[0])
EndFunc        ;==>_CM_Destroy_Device_Info_List

Func _CM_Get_Device_Registry_Property($hDevs, $pSP_DEVINFO_DATA, $iProperty)
        Local $iResult, $vResult, $tBuffer, $pBuffer, $sChr

        If IsDllStruct($pSP_DEVINFO_DATA) Then
                $pSP_DEVINFO_DATA = DllStructGetPtr($pSP_DEVINFO_DATA)
        EndIf

        $iResult = DllCall("Setupapi.dll", "int", "SetupDiGetDeviceRegistryProperty", _
                        "ptr", $hDevs, "ptr", $pSP_DEVINFO_DATA, "dword", $iProperty, _
                        "dword*", 0, "ptr", 0, "dword", 0, "dword*", 0)
        Switch $iResult[4]
        Case 1, 2, 7
                $tBuffer = DllStructCreate("char Data[" & $iResult[7] & "]")
        Case 4, 5
                $tBuffer = DllStructCreate("dword Data")
        Case 6
                $tBuffer = DllStructCreate("wchar Data[" & $iResult[7] / 2 & "]")
        Case Else
                $tBuffer = DllStructCreate("byte Data[" & $iResult[7] & "]")
        EndSwitch

        $pBuffer = DllStructGetPtr($tBuffer)
        $iResult = DllCall("Setupapi.dll", "int", "SetupDiGetDeviceRegistryProperty", _
                        "ptr", $hDevs, "ptr", $pSP_DEVINFO_DATA, "dword", $iProperty, _
                        "dword*", 0, "ptr", $pBuffer, "dword", $iResult[7], "dword*", 0)
        If $iResult[0] = 0 Then Return SetError(_CM_Get_Last_Error(), _CM_Free_Var($tBuffer), "")
        If $iResult[4] <> 7 Then
                $vResult = DllStructGetData($tBuffer, "Data")
        Else
                For $i = 1 To $iResult[7]
                        $sChr = DllStructGetData($tBuffer, "Data", $i)
                        If $sChr = Chr(0) Then
                                $vResult &= @LF
                        Else
                                $vResult &= $sChr
                        EndIf
                Next
        EndIf
        Return SetExtended(_CM_Free_Var($tBuffer), $vResult)
EndFunc        ;==>_CM_Get_Device_Registry_Property
发表于 2010-2-27 00:14:47 | 显示全部楼层
- -|||
以上这个存在BUG,用SetupApi.au3函数库中的_CM_Safely_Eject_Disk函数代替吧。原型:
#include <SetupApi.au3>
_CM_Safely_Eject_Disk("H:") ; 如果成功函数将返回True。
发表于 2010-3-24 13:37:17 | 显示全部楼层
谢谢分享。又学会了一用法
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