?? frmudp.frm
字號:
VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Begin VB.Form frmUDP
Caption = "Datagram Sockets"
ClientHeight = 4770
ClientLeft = 60
ClientTop = 345
ClientWidth = 8880
LinkTopic = "Form1"
ScaleHeight = 4770
ScaleWidth = 8880
StartUpPosition = 3 'Windows Default
Begin VB.CommandButton cmdExit
Caption = "Exit"
Height = 375
Left = 6600
TabIndex = 22
Top = 4080
Width = 1455
End
Begin VB.Frame Frame3
Caption = "Winsock Information"
Height = 3735
Left = 5880
TabIndex = 17
Top = 120
Width = 2895
Begin VB.Timer Timer1
Left = 2040
Top = 3120
End
Begin VB.Label lblRemotePort
Height = 255
Left = 1320
TabIndex = 30
Top = 2640
Width = 1455
End
Begin VB.Label Label12
Caption = " Remote Port:"
Height = 255
Left = 240
TabIndex = 29
Top = 2640
Width = 975
End
Begin VB.Label lblRemoteIP
Height = 255
Left = 1320
TabIndex = 28
Top = 2280
Width = 1455
End
Begin VB.Label Label11
Caption = " Remote IP:"
Height = 255
Left = 360
TabIndex = 27
Top = 2280
Width = 855
End
Begin VB.Label lblReceiverState
Caption = "sckClosed"
Height = 255
Left = 1320
TabIndex = 26
Top = 1440
Width = 1455
End
Begin VB.Label lblSenderState
Caption = "sckClosed"
Height = 255
Left = 1320
TabIndex = 25
Top = 1080
Width = 1455
End
Begin VB.Label Label10
Caption = "Receiver State:"
Height = 255
Left = 120
TabIndex = 24
Top = 1440
Width = 1215
End
Begin VB.Label Label9
Caption = "Sender State:"
Height = 255
Left = 240
TabIndex = 23
Top = 1080
Width = 1095
End
Begin VB.Label lblLocalIP
Height = 255
Left = 1320
TabIndex = 21
Top = 720
Width = 1335
End
Begin VB.Label Label8
Caption = "Local IP:"
Height = 255
Left = 600
TabIndex = 20
Top = 720
Width = 735
End
Begin VB.Label lblHostName
Height = 255
Left = 1320
TabIndex = 19
Top = 360
Width = 1455
End
Begin VB.Label Label7
Caption = " Local Name:"
Height = 255
Left = 240
TabIndex = 18
Top = 360
Width = 975
End
End
Begin VB.Frame Frame2
Caption = "Receiver"
Height = 2295
Left = 120
TabIndex = 5
Top = 2280
Width = 5655
Begin VB.CommandButton cmdCloseListen
Caption = "Close Listen"
Height = 375
Left = 3975
TabIndex = 16
Top = 1065
Width = 1455
End
Begin VB.TextBox txtRecvLocalPort
Height = 285
Left = 2205
TabIndex = 9
Text = "5150"
Top = 360
Width = 1575
End
Begin VB.CommandButton cmdListen
Caption = "Listen"
Height = 375
Left = 3975
TabIndex = 8
Top = 465
Width = 1455
End
Begin VB.ListBox lstRecvData
Height = 1425
Left = 120
TabIndex = 6
Top = 720
Width = 3645
End
Begin MSWinsockLib.Winsock sockRecv
Left = 4935
Top = 1665
_ExtentX = 741
_ExtentY = 741
_Version = 393216
End
Begin VB.Label Label3
Caption = "Port:"
Height = 255
Left = 1725
TabIndex = 10
Top = 360
Width = 375
End
End
Begin VB.Frame Frame1
Caption = "Sender"
Height = 1935
Left = 120
TabIndex = 0
Top = 120
Width = 5655
Begin VB.CommandButton cmdCloseSend
Caption = "Close Socket"
Height = 375
Left = 3960
TabIndex = 15
Top = 840
Width = 1455
End
Begin VB.TextBox txtSendRemotePort
Height = 285
Left = 1800
TabIndex = 13
Text = "5150"
Top = 1080
Width = 1335
End
Begin VB.TextBox txtSendData
Height = 285
Left = 1800
TabIndex = 11
Text = "This is a test of the emergency broadcasting..."
Top = 1440
Width = 3615
End
Begin VB.CommandButton cmdSendDgram
Caption = "Send Datagram"
Height = 375
Left = 3960
TabIndex = 7
Top = 360
Width = 1455
End
Begin VB.TextBox txtSendLocalPort
Height = 285
Left = 1800
TabIndex = 3
Text = "0"
Top = 720
Width = 1335
End
Begin VB.TextBox txtRecipientIP
Height = 285
Left = 1800
TabIndex = 1
Text = "157.54.178.12"
Top = 360
Width = 1695
End
Begin MSWinsockLib.Winsock sockSend
Left = 120
Top = 1440
_ExtentX = 741
_ExtentY = 741
_Version = 393216
End
Begin VB.Label Label5
Alignment = 1 'Right Justify
Caption = "Remote Port:"
Height = 255
Left = 720
TabIndex = 14
Top = 1080
Width = 975
End
Begin VB.Label Label4
Alignment = 1 'Right Justify
Caption = "Message:"
Height = 255
Left = 960
TabIndex = 12
Top = 1440
Width = 735
End
Begin VB.Label Label1
Alignment = 1 'Right Justify
Caption = "Port:"
Height = 255
Left = 1320
TabIndex = 4
Top = 720
Width = 375
End
Begin VB.Label Label2
Alignment = 1 'Right Justify
Caption = "Recipient's Name/IP:"
Height = 255
Left = 120
TabIndex = 2
Top = 360
Width = 1575
End
End
End
Attribute VB_Name = "frmUDP"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Private Sub cmdExit_Click()
Unload Me
End Sub
Private Sub cmdSendDgram_Click()
' If the socket state is closed, we need to bind to a local
' port and also to the remote host's IP address and port
If (sockSend.State = sckClosed) Then
sockSend.RemoteHost = txtRecipientIP.Text
sockSend.RemotePort = CInt(txtSendRemotePort.Text)
sockSend.Bind CInt(txtSendLocalPort.Text)
cmdCloseSend.Enabled = True
End If
'
' Now we can send the data
'
sockSend.SendData txtSendData.Text
End Sub
Private Sub cmdListen_Click()
' Bind to the local port
'
sockRecv.Bind CInt(txtRecvLocalPort.Text)
'
' Disable this button since it would be an error to bind
' twice (a close needs to be done before rebinding occurs)
'
cmdListen.Enabled = False
cmdCloseListen.Enabled = True
End Sub
Private Sub cmdCloseSend_Click()
' Close the sending socket, and disable the Close button
'
sockSend.Close
cmdCloseSend.Enabled = False
End Sub
Private Sub cmdCloseListen_Click()
' Close the listening socket
'
sockRecv.Close
' Enable the right buttons
'
cmdListen.Enabled = True
cmdCloseListen.Enabled = False
lstRecvData.Clear
End Sub
Private Sub Form_Load()
' Initialize the socket protocols, and set up some default
' labels and values
'
sockSend.Protocol = sckUDPProtocol
sockRecv.Protocol = sckUDPProtocol
lblHostName.Caption = sockSend.LocalHostName
lblLocalIP.Caption = sockSend.LocalIP
cmdCloseListen.Enabled = False
cmdCloseSend.Enabled = False
Timer1.Interval = 500
Timer1.Enabled = True
End Sub
Private Sub sockSend_Error(ByVal Number As Integer, _
Description As String, ByVal Scode As Long, _
ByVal Source As String, ByVal HelpFile As String, _
ByVal HelpContext As Long, CancelDisplay As Boolean)
MsgBox Description
End Sub
Private Sub sockRecv_DataArrival(ByVal bytesTotal As Long)
Dim data As String
' Allocate a string of sufficient size and get the data,
' then add it to the list box.
data = String(bytesTotal + 2, Chr$(0))
sockRecv.GetData data, , bytesTotal
lstRecvData.AddItem data
' Update the remote IP and port labels
'
lblRemoteIP.Caption = sockRecv.RemoteHostIP
lblRemotePort.Caption = sockRecv.RemotePort
End Sub
Private Sub sockRecv_Error(ByVal Number As Integer, _
Description As String, ByVal Scode As Long, _
ByVal Source As String, ByVal HelpFile As String, _
ByVal HelpContext As Long, CancelDisplay As Boolean)
MsgBox Description
End Sub
Private Sub Timer1_Timer()
' When the timer goes off, update the socket status labels
'
Select Case sockSend.State
Case sckClosed
lblSenderState.Caption = "sckClosed"
Case sckOpen
lblSenderState.Caption = "sckOpen"
Case sckListening
lblSenderState.Caption = "sckListening"
Case sckConnectionPending
lblSenderState.Caption = "sckConnectionPending"
Case sckResolvingHost
lblSenderState.Caption = "sckResolvingHost"
Case sckHostResolved
lblSenderState.Caption = "sckHostResolved"
Case sckConnecting
lblSenderState.Caption = "sckConnecting"
Case sckClosing
lblSenderState.Caption = "sckClosing"
Case sckError
lblSenderState.Caption = "sckError"
Case Else
lblSenderState.Caption = "unknown"
End Select
Select Case sockRecv.State
Case sckClosed
lblReceiverState.Caption = "sckClosed"
Case sckOpen
lblReceiverState.Caption = "sckOpen"
Case sckListening
lblReceiverState.Caption = "sckListening"
Case sckConnectionPending
lblReceiverState.Caption = "sckConnectionPending"
Case sckResolvingHost
lblReceiverState.Caption = "sckResolvingHost"
Case sckHostResolved
lblReceiverState.Caption = "sckHostResolved"
Case sckConnecting
lblReceiverState.Caption = "sckConnecting"
Case sckClosing
lblReceiverState.Caption = "sckClosing"
Case sckError
lblReceiverState.Caption = "sckError"
Case Else
lblReceiverState.Caption = "unknown"
End Select
End Sub
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -