Visual Basic 4 Unleashed/Visual_Basic_4_Unleashed_SAMS_Publishing_1995.iso/source/chap15/generic.frm

Text File | 1995-10-11 | 7KB | 232 lines

VERSION 2.00
Begin Form Form1
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   2145
   ClientTop       =   3105
   ClientWidth     =   5610
   Height          =   3600
   Left            =   2085
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   5610
   Top             =   2760
   Width           =   5730
   Begin Socket Socket2
      Backlog         =   1
      Binary          =   -1  'True
      Blocking        =   -1  'True
      Broadcast       =   0   'False
      BufferSize      =   0
      HostAddress     =   ""
      HostFile        =   ""
      HostName        =   ""
      Index           =   0
      InLine          =   0   'False
      Interval        =   0
      KeepAlive       =   0   'False
      Left            =   720
      Linger          =   0
      LocalPort       =   0
      LocalService    =   ""
      Peek            =   0   'False
      Protocol        =   0
      RecvLen         =   0
      RemotePort      =   0
      RemoteService   =   ""
      ReuseAddress    =   0   'False
      Route           =   -1  'True
      SendLen         =   0
      TabIndex        =   8
      Timeout         =   0
      Top             =   2520
      Type            =   1
      Urgent          =   0   'False
   End
   Begin Socket Socket1
      Backlog         =   1
      Binary          =   -1  'True
      Blocking        =   -1  'True
      Broadcast       =   0   'False
      BufferSize      =   0
      HostAddress     =   ""
      HostFile        =   ""
      HostName        =   ""
      InLine          =   0   'False
      Interval        =   0
      KeepAlive       =   0   'False
      Left            =   120
      Linger          =   0
      LocalPort       =   0
      LocalService    =   ""
      Peek            =   0   'False
      Protocol        =   0
      RecvLen         =   0
      RemotePort      =   0
      RemoteService   =   ""
      ReuseAddress    =   0   'False
      Route           =   -1  'True
      SendLen         =   0
      TabIndex        =   7
      Timeout         =   0
      Top             =   2520
      Type            =   1
      Urgent          =   0   'False
   End
   Begin CommandButton Command1
      Caption         =   "&Connect"
      Height          =   375
      Left            =   2160
      TabIndex        =   6
      Top             =   2520
      Width           =   1215
   End
   Begin TextBox Text3
      Enabled         =   0   'False
      Height          =   855
      Left            =   960
      TabIndex        =   5
      Top             =   1320
      Width           =   3855
   End
   Begin TextBox Text2
      Enabled         =   0   'False
      Height          =   285
      Left            =   960
      TabIndex        =   3
      Top             =   840
      Width           =   3855
   End
   Begin TextBox Text1
      Height          =   285
      Left            =   960
      TabIndex        =   1
      Top             =   360
      Width           =   2055
   End
   Begin Label Label3
      AutoSize        =   -1  'True
      Caption         =   "Reply:"
      Height          =   195
      Left            =   360
      TabIndex        =   4
      Top             =   1320
      Width           =   555
   End
   Begin Label Label2
      AutoSize        =   -1  'True
      Caption         =   "Send:"
      Height          =   195
      Left            =   360
      TabIndex        =   2
      Top             =   840
      Width           =   510
   End
   Begin Label Label1
      AutoSize        =   -1  'True
      Caption         =   "Host:"
      Height          =   195
      Left            =   360
      TabIndex        =   0
      Top             =   360
      Width           =   465
   End
End
Option Explicit
Dim LastSocket As Integer

Sub Command1_Click ()
    If Socket1.Connected Then
        Socket1.Action = SOCKET_CLOSE
        Text1.Enabled = True
        Command1.Enabled = True
        Command1.Caption = "Connect"
    Else
        Command1.Enabled = False
        Socket1.HostName = Trim$(Text1.Text)
        Socket1.LocalPort = IPPORT_ANY
        Socket1.RemotePort = IPPORT_ECHO
        Socket1.Action = SOCKET_CONNECT
    End If
End Sub

Sub Form_Load ()
    Socket1.AddressFamily = AF_INET
    Socket1.Protocol = IPPROTO_IP
    Socket1.Type = SOCK_STREAM
    Socket1.Binary = False
    Socket1.BufferSize = 1024
    Socket1.Blocking = False

    Socket2(0).AddressFamily = AF_INET
    Socket2(0).Protocol = IPPROTO_IP
    Socket2(0).Type = SOCK_STREAM
    Socket2(0).Blocking = False
    Socket2(0).LocalPort = IPPORT_ECHO
    Socket2(0).Action = SOCKET_LISTEN
    LastSocket = 0
End Sub

Sub Form_Unload (Cancel As Integer)
    Dim I As Integer
    If Socket1.Connected Then Socket1.Action = SOCKET_CLOSE
    If Socket2(0).Listening Then Socket2(0).Action = SOCKET_CLOSE
    For I = 1 To LastSocket
        If Socket2(I).Connected Then Socket2(I).Action = SOCKET_CLOSE
    Next I
    End
End Sub

Sub Socket1_Connect ()
    Text1.Enabled = False
    Text2.Enabled = True
    Text3.Enabled = True
    Command1.Caption = "Disconnect"
    Command1.Enabled = True
End Sub

Sub Socket1_Read (DataLength As Integer, IsUrgent As Integer)
    Socket1.RecvLen = DataLength
    Text3.Text = Socket1.RecvData
End Sub

Sub Socket2_Accept (Index As Integer, SocketId As Integer)
    Dim I As Integer

    For I = 1 To LastSocket
        If Not Socket2(I).Connected Then Exit For
    Next I

    If I > LastSocket Then
        LastSocket = LastSocket + 1: I = LastSocket
        Load Socket2(I)
    End If

    Socket2(I).AddressFamily = AF_INET
    Socket2(I).Protocol = IPPROTO_IP
    Socket2(I).Type = SOCK_STREAM
    Socket2(I).Binary = True
    Socket2(I).BufferSize = 1024
    Socket2(I).Blocking = False
    Socket2(I).Accept = SocketId
End Sub

Sub Socket2_Close (Index As Integer)
    Socket2(Index).Action = SOCKET_CLOSE
End Sub

Sub Socket2_Read (Index As Integer, DataLength As Integer, IsUrgent As Integer)
    Socket2(Index).RecvLen = DataLength
    Socket2(Index).SendLen = DataLength
    Socket2(Index).SendData = Socket2(Index).RecvData
End Sub

Sub Text2_KeyPress (KeyAscii As Integer)
    If KeyAscii = 13 Then
        Socket1.SendLen = Len(Text2.Text)
        Socket1.SendData = Text2.Text
        KeyAscii = 0: Text2.Text = ""
    End If
End Sub