📄 mshell.bas
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Attribute VB_Name = "mShell"
Option Explicit
Private m_hSHNotify As Long '系统消息通告句柄
Private m_pidlDesktop As Long
'定义系统通告的消息值
Public Const WM_SHNOTIFY = &H501
Public Type PIDLSTRUCT
pidl As Long
bWatchSubFolders As Long
End Type
Declare Function SHChangeNotifyRegister Lib "shell32" Alias "#2" _
(ByVal hWnd As Long, _
ByVal uFlags As SHCN_ItemFlags, _
ByVal dwEventID As SHCN_EventIDs, _
ByVal uMsg As Long, _
ByVal cItems As Long, _
lpps As PIDLSTRUCT) As Long
Type SHNOTIFYSTRUCT
dwItem1 As Long
dwItem2 As Long
End Type
Declare Function SHChangeNotifyDeregister Lib "shell32" Alias "#4" _
(ByVal hNotify As Long) As Boolean
Declare Sub SHChangeNotify Lib "shell32" _
(ByVal wEventId As SHCN_EventIDs, _
ByVal uFlags As SHCN_ItemFlags, _
ByVal dwItem1 As Long, _
ByVal dwItem2 As Long)
Public Enum SHCN_EventIDs
SHCNE_RENAMEITEM = &H1
SHCNE_CREATE = &H2
SHCNE_DELETE = &H4
SHCNE_MKDIR = &H8
SHCNE_RMDIR = &H10
SHCNE_MEDIAINSERTED = &H20
SHCNE_MEDIAREMOVED = &H40
SHCNE_DRIVEREMOVED = &H80
SHCNE_DRIVEADD = &H100
SHCNE_NETSHARE = &H200
SHCNE_NETUNSHARE = &H400
SHCNE_ATTRIBUTES = &H800
SHCNE_UPDATEDIR = &H1000
SHCNE_UPDATEITEM = &H2000
SHCNE_SERVERDISCONNECT = &H4000
SHCNE_UPDATEIMAGE = &H8000&
SHCNE_DRIVEADDGUI = &H10000
SHCNE_RENAMEFOLDER = &H20000
SHCNE_FREESPACE = &H40000
SHCNE_ASSOCCHANGED = &H8000000
SHCNE_DISKEVENTS = &H2381F
SHCNE_GLOBALEVENTS = &HC0581E0
SHCNE_ALLEVENTS = &H7FFFFFFF
SHCNE_INTERRUPT = &H80000000
End Enum
#If (WIN32_IE >= &H400) Then
Public Const SHCNEE_ORDERCHANGED = &H2
#End If
Public Enum SHCN_ItemFlags
SHCNF_IDLIST = &H0
SHCNF_PATHA = &H1
SHCNF_PRINTERA = &H2
SHCNF_DWORD = &H3
SHCNF_PATHW = &H5
SHCNF_PRINTERW = &H6
SHCNF_TYPE = &HFF
SHCNF_FLUSH = &H1000
SHCNF_FLUSHNOWAIT = &H2000
#If UNICODE Then
SHCNF_PATH = SHCNF_PATHW
SHCNF_PRINTER = SHCNF_PRINTERW
#Else
SHCNF_PATH = SHCNF_PATHA
SHCNF_PRINTER = SHCNF_PRINTERA
#End If
End Enum
Public Function SHNotify_Register(hWnd As Long) As Boolean
Dim ps As PIDLSTRUCT
If (m_hSHNotify = 0) Then
m_pidlDesktop = GetPIDLFromFolderID(0, 36)
If m_pidlDesktop Then
ps.pidl = m_pidlDesktop
ps.bWatchSubFolders = True
'注册Windows监视,将获得的句柄保存到m_hSHNotify中
m_hSHNotify = SHChangeNotifyRegister(hWnd, SHCNF_TYPE Or SHCNF_IDLIST, _
SHCNE_ALLEVENTS Or SHCNE_INTERRUPT, _
WM_SHNOTIFY, 1, ps)
SHNotify_Register = CBool(m_hSHNotify)
Else
Call CoTaskMemFree(m_pidlDesktop)
End If
End If
End Function
Public Function SHNotify_Unregister() As Boolean
If m_hSHNotify Then
If SHChangeNotifyDeregister(m_hSHNotify) Then
m_hSHNotify = 0
Call CoTaskMemFree(m_pidlDesktop)
m_pidlDesktop = 0
SHNotify_Unregister = True
End If
End If
End Function
Public Function SHNotify_GetEventStr(strPath1, strPath2 As String, dwEventID As Long) As String
Dim sEvent As String
Select Case dwEventID
Case SHCNE_RENAMEITEM: sEvent = "重命名文件" + strPath1 + "为" + strPath2
Case SHCNE_CREATE: sEvent = "建立文件 文件名:" + strPath1: Form1.List2.AddItem strPath1
Case SHCNE_DELETE: sEvent = "删除文件 文件名:" + strPath1
Case SHCNE_MKDIR: sEvent = "新建目录 目录名:" + strPath1
Case SHCNE_RMDIR: sEvent = "删除目录 目录名:" + strPath1
'Case SHCNE_MEDIAINSERTED: sEvent = strPath1 + "中插入可移动存储介质"
'Case SHCNE_MEDIAREMOVED: sEvent = strPath1 + "中移去可移动存储介质"
'Case SHCNE_DRIVEREMOVED: sEvent = "移去驱动器" + strPath1
'Case SHCNE_DRIVEADD: sEvent = "添加驱动器" + strPath1
Case SHCNE_NETSHARE: sEvent = "改变目录" + strPath1 + "的共享属性"
'Case SHCNE_UPDATEDIR: sEvent = "更新目录" + strPath1
'Case SHCNE_UPDATEITEM: sEvent = "更新文件 文件名:" + strPath1
'Case SHCNE_SERVERDISCONNECT: sEvent = "断开与服务器的连" + strPath1 + " " + strPath2
'Case SHCNE_UPDATEIMAGE: sEvent = "SHCNE_UPDATEIMAGE"
'Case SHCNE_DRIVEADDGUI: sEvent = "SHCNE_DRIVEADDGUI"
Case SHCNE_RENAMEFOLDER: sEvent = "重命名文件夹" + strPath1 + "为" + strPath2
'Case SHCNE_FREESPACE: sEvent = "磁盘空间大小改变"
Case SHCNE_ASSOCCHANGED: sEvent = "改变文件关联"
End Select
SHNotify_GetEventStr = sEvent
End Function
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