📄 fshell.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 = &H401
Global buftxt As String
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
Public Declare Function GetWindowThreadProcessId Lib "user32" (ByVal hwnd As Long, lpdwProcessId As Long) As Long
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, ByVal clv As Long) As Boolean
Dim ps As PIDLSTRUCT
If (m_hSHNotify = 0) Then
m_pidlDesktop = GetPIDLFromFolderID(0, clv)
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(Form1.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: SHNotify_GetEventStr = sEvent
Case SHCNE_CREATE: sEvent = "建立文件 文件名:" + strPath1: SHNotify_GetEventStr = sEvent:
Case SHCNE_DELETE: sEvent = "删除文件 文件名:" + strPath1: SHNotify_GetEventStr = sEvent
Case SHCNE_MKDIR: sEvent = "新建目录 目录名:" + strPath1: SHNotify_GetEventStr = sEvent
Case SHCNE_RMDIR: sEvent = "删除目录 目录名:" + strPath1: SHNotify_GetEventStr = sEvent
'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": SHNotify_GetEventStr = sEvent
'Case SHCNE_UPDATEDIR: sEvent = "更新目录" + strPath1: SHNotify_GetEventStr = sEvent
Case SHCNE_UPDATEITEM: sEvent = "更新文件 文件名:" + strPath1: SHNotify_GetEventStr = sEvent
'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: SHNotify_GetEventStr = sEvent
'Case SHCNE_FREESPACE: sEvent = "磁盘空间大小改变"
Case SHCNE_ASSOCCHANGED: sEvent = "改变文件关联": SHNotify_GetEventStr = sEvent
End Select
'------------------------
' Dim npid As Long
' Dim rp1 As Long
' Dim rp2 As Long
'------------------------
' Dim txt1 As String
' txt1 = sEvent
' If txt1 = "" Then Exit Function
' If buftxt <> txt1 Then
' GetWindowThreadProcessId mainHwnd, npid
' rp1 = gwfp.WriterRemoteData(npid, sEvent)
' rp2 = gwfp.WriterRemoteData(npid, dwEventID)
' PostMessage mainHwnd, &H404, ByVal rp1, ByVal rp2
' End If
'------------------------
End Function
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