vb远程控制

远程控制服务端：

Option Explicit

Function WinSockInitial(ByVal WinSock As WinSock,ByVal IntPort As Long) As Boolean

On Error GoTo InitialError
     '验证winsock控件初始化连接的端口号)
    If 0 <= IntPort And IntPort <= 65535 Then
        If IntPort Mod 1 = 0 Then
            WinSock.LocalPort = IntPort
            WinSockInitial = True
            Exit Function
        Else
            MsgBox "端口配置应为整数",vbOKOnly + vbExclamation,"错误提示"
            Exit Function
        End If
    ElseIf IntPort < 0 Then
            MsgBox "端口配置为非负数","错误提示"
            Exit Function
    ElseIf IntPort > 65535 Then
        MsgBox "端口配置超出最大值65535","错误提示"
        Exit Function
    End If
    
InitialError:
    WinSockInitial = False
    MsgBox "Unexpected error" & _
            Str$(Err.Number) & _
            " in subroutine WinSockInitial" & _
            vbCrLf & _
            Err.Description
    Exit Function
    
End Function


Private Sub Form_Load()

'    '服务器端Winsock控件的初始化
    If WinSockInitial(tcpServer,5000) = False Then
        Unload Me
        Exit Sub
    Else
        tcpServer.Listen
        Debug.Print tcpServer.State
        frmClient.Show
    End If
    
End Sub

Private Sub tcpServer_ConnectionRequest(ByVal requestID As Long)
    
    '接受请求
    If tcpServer.State <> sckClosed Then tcpServer.Close
    tcpServer.Accept requestID
    
End Sub

Private Sub tcpServer_DataArrival(ByVal bytesTotal As Long)
    
    Dim strData As String                       '声明一个变量，盛放数据
    tcpServer.GetData strData,vbString         '调用GetData方法
    txtOutPut.Text = txtOutPut.Text + strData   '将数据传送到txtOutPut文本框
    
End Sub


Private Sub txtSendData_KeyDown(KeyCode As Integer,Shift As Integer)
    If KeyCode = vbKeyReturn Then
        tcpServer.SendData txtSendData.Text
    End If
End Sub

客户端：

Option Explicit
Private Sub Form_Load()

    tcpClient.RemoteHost = "192.168.24.156"
    tcpClient.RemotePort = 5000
    tcpClient.Connect                   '调用Connect方法初始化连接

End Sub
 
Private Sub Form_Unload(Cancel As Integer)
    tcpClient.Close         '关闭连接
End Sub

Private Sub tcpClient_DataArrival(ByVal bytesTotal As Long)

    Dim strData As String               '声明变量盛放数据
    If tcpClient.State = 7 Then
        tcpClient.GetData strData           '调用GetData方法传送数据
        txtOutPut.Text = strData            '将数据放到TxtOutPut文本框显示
    End If
    
End Sub


Private Sub txtSend_KeyDown(KeyCode As Integer,Shift As Integer)
    
    '按回车发送数据
    If KeyCode = vbKeyReturn Then
        tcpClient.SendData txtSend.Text     '当文本框数据发生变换时，通过tcpClient控件调用SendData方法发送数据
    End If
    
End Sub

同时控制多台客户端的服务端：

Option Explicit

Private intMax As Long

Private Sub Form_Load()
    intMax = 0                      '初始化intMax变量
    sckServer(0).LocalPort = 5000
    sckServer(0).Listen
End Sub

Private Sub sckServer_ConnectionRequest(Index As Integer,ByVal requestID As Long)
    If Index = 0 Then
        intMax = intMax + 1
        Load sckServer(intMax)
        sckServer(intMax).LocalPort = 0
        sckServer(intMax).Accept requestID
        Load txtData(intMax)
    End If
End Sub

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!