frmlocalinfo.frm

一个基于VB的网络信息发送器,可做毕业设计参考

    Dim lMin As Long
    Dim lLength As Long
    Dim l As Long
    Dim lBufferSize As Long
    Dim lLastIndex As Long
    Dim uNetApi(0 To MAX_RESOURCES) As NETRESOURCE
    Dim uNet() As NETRESOURCE_REAL
    bFirstTime = True
    Do
        If bFirstTime Then
            lReturn = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, RESOURCEUSAGE_ALL, ByVal 0&, hEnum)
            bFirstTime = False
        Else
            If uNet(lLastIndex).dwUsage And RESOURCEUSAGE_CONTAINER Then
                lReturn = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, RESOURCEUSAGE_ALL, uNet(lLastIndex), hEnum)
            Else
                lReturn = NOT_A_CONTAINER
                hEnum = 0
            End If
            lLastIndex = lLastIndex + 1
        End If
        If lReturn = NO_ERROR Then
            lCount = RESOURCE_ENUM_ALL
            Do
                lBufferSize = UBound(uNetApi) * Len(uNetApi(0)) / 2
                lReturn = WNetEnumResource(hEnum, lCount, uNetApi(0), lBufferSize)
                If lCount > 0 Then
                    ReDim Preserve uNet(0 To lMin + lCount - 1) As NETRESOURCE_REAL
                    For l = 0 To lCount - 1
                        'Each Resource will appear here as uNet(i)
                        uNet(lMin + l).dwScope = uNetApi(l).dwScope
                        uNet(lMin + l).dwType = uNetApi(l).dwType
                        uNet(lMin + l).dwDisplayType = uNetApi(l).dwDisplayType
                        uNet(lMin + l).dwUsage = uNetApi(l).dwUsage
                        If uNetApi(l).pLocalName Then
                            lLength = lstrlen(uNetApi(l).pLocalName)
                            uNet(lMin + l).sLocalName = Space$(lLength)
                            CopyMem ByVal uNet(lMin + l).sLocalName, ByVal uNetApi(l).pLocalName, lLength
                        End If
                        If uNetApi(l).pRemoteName Then
                            lLength = lstrlen(uNetApi(l).pRemoteName)
                            uNet(lMin + l).sRemoteName = Space$(lLength)
                            CopyMem ByVal uNet(lMin + l).sRemoteName, ByVal uNetApi(l).pRemoteName, lLength
                        End If
                        If uNetApi(l).pComment Then
                            lLength = lstrlen(uNetApi(l).pComment)
                            uNet(lMin + l).sComment = Space$(lLength)
                            CopyMem ByVal uNet(lMin + l).sComment, ByVal uNetApi(l).pComment, lLength
                        End If
                        If uNetApi(l).pProvider Then
                            lLength = lstrlen(uNetApi(l).pProvider)
                            uNet(lMin + l).sProvider = Space$(lLength)
                            CopyMem ByVal uNet(lMin + l).sProvider, ByVal uNetApi(l).pProvider, lLength
                        End If
                    Next l
                End If
                lMin = lMin + lCount
            Loop While lReturn = ERROR_MORE_DATA
        End If
        If hEnum Then
            l = WNetCloseEnum(hEnum)
        End If
    Loop While lLastIndex < lMin
    TrvComputer.Nodes.Add , , "R", "网络资源", 1
    If UBound(uNet) > 0 Then
        For l = 0 To UBound(uNet)
            Select Case uNet(l).dwDisplayType
                Case RESOURCEDISPLAYTYPE_DIRECTORY&
               '     Debug.Print "Directory...",
                Case RESOURCEDISPLAYTYPE_DOMAIN
                '    TrvComputer.Nodes.Add , , "R", "Domain..." & uNet(l).sRemoteName, 1
                   ' Debug.Print "Domain...",
                Case RESOURCEDISPLAYTYPE_FILE
                  '  Debug.Print "File...",
                Case RESOURCEDISPLAYTYPE_GENERIC
                  '  Debug.Print "Generic...",
                Case RESOURCEDISPLAYTYPE_GROUP
                  '  Debug.Print "Group...",
                Case RESOURCEDISPLAYTYPE_NETWORK&
                
                 '   Debug.Print "Network...",
                Case RESOURCEDISPLAYTYPE_ROOT&
                 '   Debug.Print "Root...",
                Case RESOURCEDISPLAYTYPE_SERVER
                    Set nodX = TrvComputer.Nodes.Add("R", tvwChild, "node" & l, uNet(l).sRemoteName, 2)
                    
                '    Debug.Print "Server...",
                Case RESOURCEDISPLAYTYPE_SHARE
                 '   Debug.Print "Share...",
                Case RESOURCEDISPLAYTYPE_SHAREADMIN&
                '    Debug.Print "ShareAdmin...",
            End Select
          '  Debug.Print uNet(l).sRemoteName, uNet(l).sComment
        Next l
    End If
    nodX.EnsureVisible
End Sub

Private Sub cmdClose_Click()
    Unload Me
End Sub

Private Sub Form_Load()
    Dim strForm As String
    Dim nodX As Node
    strForm = FormSet(Me, 5)
    Set vbSplitter1.Child1 = TrvComputer
    Set vbSplitter1.Child2 = lsvInfo
    TrvComputer.Width = 2475
   ' vbSplitter1.
    vbSplitter1.Orientation = vbSplitVertical
    vbSplitter1.ForceResize
    '表头
    TrvComputer.Nodes.Clear
    lsvInfo.ColumnHeaders.Add 1, , "共享文件夹", 3600
    Call GetLocalInfo
End Sub

Private Sub Form_Resize()
    vbSplitter1.Move 0, 0, Me.Width - 250, Me.Height - 50
End Sub

Private Sub TrvComputer_NodeClick(ByVal Node As MSComctlLib.Node)
    lsvInfo.ListItems.Clear
    Const MAX_RESOURCES = 256
    Const NOT_A_CONTAINER = -1

    Dim bFirstTime As Boolean
    Dim lReturn As Long
    Dim hEnum As Long
    Dim lCount As Long
    Dim lMin As Long
    Dim lLength As Long
    Dim l As Long
    Dim lBufferSize As Long
    Dim lLastIndex As Long
    Dim uNetApi(0 To MAX_RESOURCES) As NETRESOURCE
    Dim uNet() As NETRESOURCE_REAL
    bFirstTime = True
    Do
        If bFirstTime Then
            lReturn = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, RESOURCEUSAGE_ALL, ByVal 0&, hEnum)
            bFirstTime = False
        Else
            If uNet(lLastIndex).dwUsage And RESOURCEUSAGE_CONTAINER Then
                lReturn = WNetOpenEnum(RESOURCE_GLOBALNET, RESOURCETYPE_ANY, RESOURCEUSAGE_ALL, uNet(lLastIndex), hEnum)
            Else
                lReturn = NOT_A_CONTAINER
                hEnum = 0
            End If
            lLastIndex = lLastIndex + 1
        End If
        If lReturn = NO_ERROR Then
            lCount = RESOURCE_ENUM_ALL
            Do
                lBufferSize = UBound(uNetApi) * Len(uNetApi(0)) / 2
                lReturn = WNetEnumResource(hEnum, lCount, uNetApi(0), lBufferSize)
                If lCount > 0 Then
                    ReDim Preserve uNet(0 To lMin + lCount - 1) As NETRESOURCE_REAL
                    For l = 0 To lCount - 1
                        'Each Resource will appear here as uNet(i)
                        uNet(lMin + l).dwScope = uNetApi(l).dwScope
                        uNet(lMin + l).dwType = uNetApi(l).dwType
                        uNet(lMin + l).dwDisplayType = uNetApi(l).dwDisplayType
                        uNet(lMin + l).dwUsage = uNetApi(l).dwUsage
                        If uNetApi(l).pLocalName Then
                            lLength = lstrlen(uNetApi(l).pLocalName)
                            uNet(lMin + l).sLocalName = Space$(lLength)
                            CopyMem ByVal uNet(lMin + l).sLocalName, ByVal uNetApi(l).pLocalName, lLength
                        End If
                        If uNetApi(l).pRemoteName Then
                            lLength = lstrlen(uNetApi(l).pRemoteName)
                            uNet(lMin + l).sRemoteName = Space$(lLength)
                            CopyMem ByVal uNet(lMin + l).sRemoteName, ByVal uNetApi(l).pRemoteName, lLength
                        End If
                        If uNetApi(l).pComment Then
                            lLength = lstrlen(uNetApi(l).pComment)
                            uNet(lMin + l).sComment = Space$(lLength)
                            CopyMem ByVal uNet(lMin + l).sComment, ByVal uNetApi(l).pComment, lLength
                        End If
                        If uNetApi(l).pProvider Then
                            lLength = lstrlen(uNetApi(l).pProvider)
                            uNet(lMin + l).sProvider = Space$(lLength)
                            CopyMem ByVal uNet(lMin + l).sProvider, ByVal uNetApi(l).pProvider, lLength
                        End If
                    Next l
                End If
                lMin = lMin + lCount
            Loop While lReturn = ERROR_MORE_DATA
        End If
        If hEnum Then
            l = WNetCloseEnum(hEnum)
        End If
    Loop While lLastIndex < lMin
    If UBound(uNet) > 0 Then
    
        For l = 0 To UBound(uNet)
            Select Case uNet(l).dwDisplayType
                Case RESOURCEDISPLAYTYPE_SHARE
                    'Debug.Print "Share...",
                    If InStr(uNet(l).sRemoteName, TrvComputer.SelectedItem.Text) > 0 Then
                        lsvInfo.ListItems.Add , , uNet(l).sRemoteName
                    End If
            End Select
            Debug.Print uNet(l).sRemoteName, uNet(l).sComment
        Next l
    End If

End Sub