host/winhost/nettest.frm

VERSION 5.00
Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
Begin VB.Form Form1 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "TCP/UDP Test program"
   ClientHeight    =   5655
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   5670
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   5655
   ScaleWidth      =   5670
   ShowInTaskbar   =   0   'False
   StartUpPosition =   3  'Windows Default
   Begin VB.Timer Timer1 
      Left            =   3840
      Top             =   120
   End
   Begin VB.CommandButton Command3 
      Caption         =   "TCP to Filter"
      Height          =   375
      Left            =   3720
      TabIndex        =   3
      Top             =   2520
      Width           =   1575
   End
   Begin VB.TextBox Text4 
      Height          =   1575
      Left            =   240
      MultiLine       =   -1  'True
      ScrollBars      =   2  'Vertical
      TabIndex        =   2
      Text            =   "nettest.frx":0000
      Top             =   3000
      Width           =   5055
   End
   Begin VB.CommandButton Command2 
      Caption         =   "TCP to FilterManager"
      Height          =   375
      Left            =   3360
      TabIndex        =   1
      Top             =   2040
      Width           =   1935
   End
   Begin MSWinsockLib.Winsock TCPSock 
      Left            =   4920
      Top             =   120
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
   End
   Begin VB.CommandButton Command1 
      Caption         =   "Send UDP"
      Height          =   375
      Left            =   4320
      TabIndex        =   0
      Top             =   1560
      Width           =   975
   End
   Begin MSWinsockLib.Winsock UDPSock 
      Left            =   4320
      Top             =   120
      _ExtentX        =   741
      _ExtentY        =   741
      _Version        =   393216
      Protocol        =   1
   End
   Begin VB.Label Label2 
      Alignment       =   1  'Right Justify
      Caption         =   "Next heartbeat:"
      Height          =   255
      Left            =   120
      TabIndex        =   8
      Top             =   480
      Width           =   1455
   End
   Begin VB.Label Label1 
      Alignment       =   1  'Right Justify
      Caption         =   "Next UDP packet:"
      Height          =   255
      Left            =   120
      TabIndex        =   7
      Top             =   120
      Width           =   1455
   End
   Begin VB.Label Label4 
      Caption         =   "0"
      Height          =   255
      Left            =   1680
      TabIndex        =   6
      Top             =   480
      Width           =   615
   End
   Begin VB.Label Label3 
      Caption         =   "0"
      Height          =   255
      Left            =   1680
      TabIndex        =   5
      Top             =   120
      Width           =   615
   End
   Begin VB.Label Status 
      Caption         =   "Status:"
      Height          =   255
      Left            =   120
      TabIndex        =   4
      Top             =   5280
      Width           =   5415
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As String, ByVal lpDefault As String, ByVal lpReturnedString As String, ByVal nSize As Long, ByVal lpFileName As String) As Long
Private Declare Function GetPrivateProfileInt Lib "kernel32" Alias "GetPrivateProfileIntA" (ByVal lpApplicationName As String, ByVal lpKeyName As String, ByVal nDefault As Long, ByVal lpFileName As String) As Long

Dim filterManagerHostname As String
Dim filterManagerTCPPort As Integer

Dim filterHostname As String
Dim filterTCPPort As Integer
Dim filterUDPPort As Integer
Dim fileList As String
Dim lastModified As String

Dim UDPUpdateTime As Integer
Dim TCPUpdateTime As Integer

Dim protocolVersion As String
Dim connected As Boolean
Dim responseNumber As Integer


Private Sub Command1_Click()

    ' build the contents of the XML packet.
    xml = "<packet></packet>"

    ' Use the first winsock control to send a UDP packet.
    UDPSock.RemoteHost = filterHostname
    UDPSock.RemotePort = filterUDPPort
    UDPSock.SendData xml
    Status.Caption = "i-scream Winhost " & protocolVersion & " - UDP packet sent."

End Sub

Private Sub Command2_Click()
    
    ' establish a TCP connection to a filtermanager
    TCPSock.Close
    TCPSock.Connect filterManagerHostname, filterManagerTCPPort

End Sub

Private Sub Command3_Click()
    ' establish a TCP connection to a filter
    TCPSock.Close
    TCPSock.Connect filterHostname, filterTCPPort
End Sub

Private Sub Form_Load()
    protocolVersion = "1.1"
    
    Status.Caption = "i-scream Winhost " & protocolVersion
    
    ''''TEMP
    filterManagerHostname = "killigrew.ukc.ac.uk"
    filterManagerTCPPort = 4567
    Exit Sub
    ''' ENDTEMP
    
    On Error GoTo iniError
    Dim buf As String * 256
    Dim length As Long
    length = GetPrivateProfileString("i-scream Winhost", "FilterManager", "<no value>", buf, Len(buf), App.Path & "winhost.ini")
    filterManagerHostname = Left$(buf, length)
    length = GetPrivateProfileString("i-scream Winhost", "FilterManagerPort", "<no value>", buf, Len(buf), App.Path & "winhost.ini")
    filterManagerTCPPort = Left$(buf, length)
    
    Status.Caption = "i-scream Winhost " & protocolVersion & " connecting to Filter Manager"
    
    Exit Sub
    
iniError:
    x = MsgBox("The i-scream Winhost could not read the correct settings from the winhost.ini file.  Please correct these and try again.", 48, "Configuration not found")
    End
    
End Sub

Private Sub TCPSock_Connect()
    
    responseNumber = 0
   
    ' Send something as soon as we connect to the server.
    If connected = False Then
        ' contact the FilterManager
        TCPSock.SendData "STARTCONFIG" & vbCrLf
    Else
       ' Contact the Filter
       TCPSock.SendData "HEARTBEAT" & vbCrLf
    End If
   
End Sub

Private Sub TCPSock_DataArrival(ByVal bytesTotal As Long)
    
    responseNumber = responseNumber + 1
    
    ' Get the line from the server.
    TCPSock.GetData response, vbString, bytesTotal
    
    ' Remove linefeeds and returns from the line.
    response = Replace(response, Chr(13), "")
    response = Replace(response, Chr(10), "")
    Text4.Text = Text4.Text & vbCrLf & response
    
    If connected = False Then
        ' Perform TCP configuration (1.1)
        On Error GoTo configError
        Select Case responseNumber
            Case 1:
                If Not response = "OK" Then GoTo configError
                TCPSock.SendData "LASTMODIFIED" & vbCrLf
            Case 2:
                If response = "ERROR" Then GoTo configError
                lastModified = response
                TCPSock.SendData "FILELIST" & vbCrLf
            Case 3:
                If response = "ERROR" Then GoTo configError
                fileList = response
                TCPSock.SendData "UDPUpdateTime" & vbCrLf
            Case 4:
                If response = "ERROR" Then GoTo configError
                UDPUpdateTime = response
                TCPSock.SendData "TCPUpdateTime" & vbCrLf
            Case 5:
                If response = "ERROR" Then GoTo configError
                TCPUpdateTime = response
                TCPSock.SendData "ENDCONFIG" & vbCrLf
            Case 6:
                If Not response = "OK" Then GoTo configError
                TCPSock.SendData "FILTER" & vbCrLf
            Case 7:
                'we got a filter list here.
                readTo = 0
                ' get hostname
                readTo = InStr(1, response, ";", vbBinaryCompare)
                filterHostname = Mid(response, 1, readTo - 1)
                response = Mid(response, readTo + 1, Len(response))
                ' get UDP Port number
                readTo = InStr(1, response, ";")
                filterUDPPort = Mid(response, 1, readTo - 1)
                response = Mid(response, readTo + 1, Len(response))
                ' get TCP Port number
                filterTCPPort = response
                TCPSock.SendData "END" & vbCrLf
            Case 8:
                If Not response = "OK" Then GoTo configError
                connected = True
                responseNumber = 0
                TCPSock.Close
                Text4.Text = Text4.Text & vbCrLf & "  <closed>"
                Status.Caption = "i-scream Winhost " & protocolVersion & " - got config okay"
                Label3.Caption = UDPUpdateTime
                Label4.Caption = TCPUpdateTime
                Timer1.Interval = 1000
        End Select
    Else
        ' Perform a heartbeat (1.1)
        On Error GoTo heartbeatError
        Select Case responseNumber
            Case 1:
                If Not response = "OK" Then GoTo heartbeatError
                TCPSock.SendData "CONFIG" & vbCrLf
            Case 2:
                If Not response = "OK" Then GoTo heartbeatError
                TCPSock.SendData fileList & vbCrLf
            Case 3:
                If Not response = "OK" Then GoTo heartbeatError
                TCPSock.SendData lastModified & vbCrLf
            Case 4:
                If Not response = "OK" Then GoTo heartbeatError
                TCPSock.SendData "ENDHEARTBEAT" & vbCrLf
            Case 5:
                If Not response = "OK" Then GoTo heartbeatError
                TCPSock.Close
                Status.Caption = "i-scream Winhost " & protocolVersion & " - heartbeat sent okay."
        End Select
    
    End If
    
    
    Exit Sub
    
configError:
    Status.Caption = "i-scream Winhost " & protocolVersion & " - FAILED to get configuration " & Err.Description
    Exit Sub
heartbeatError:
    Status.Caption = "i-scream Winhost " & protocolVersion & " - Heatbeat FAILED " & Err.Description
    Exit Sub
End Sub

Private Sub TCPTimer_Timer()
    
    ' establish a TCP connection to a filter
    TCPSock.Close
    TCPSock.Connect filterHostname, filterTCPPort

End Sub

Private Sub UDPTimer_Timer()
    
    ' build the contents of the XML packet.
    xml = "<packet></packet>"

    ' Use the first winsock control to send a UDP packet.
    UDPSock.RemoteHost = filterHostname
    UDPSock.RemotePort = filterUDPPort
    UDPSock.SendData xml
    Status.Caption = "i-scream Winhost " & protocolVersion & " - UDP packet sent."

End Sub

Private Sub Timer1_Timer()

    Label3.Caption = Label3.Caption - 1
    Label4.Caption = Label4.Caption - 1
    
    Status.Caption = "i-scream Winhost " & protocolVersion
    
    If Label3.Caption < 1 Then
        ' build the contents of the XML packet.
        xml = "<packet></packet>"

        ' Use the first winsock control to send a UDP packet.
        UDPSock.RemoteHost = filterHostname
        UDPSock.RemotePort = filterUDPPort
        UDPSock.SendData xml
        Status.Caption = "i-scream Winhost " & protocolVersion & " - UDP packet sent."
        Label3.Caption = UDPUpdateTime
    End If
    
    If Label4.Caption < 1 Then
        ' establish a TCP connection to a filter
        TCPSock.Close
        TCPSock.Connect filterHostname, filterTCPPort
        Label4.Caption = TCPUpdateTime
    End If

End Sub
Revision:	1.9
Committed:	Fri Feb 23 11:30:25 2001 UTC (23 years, 8 months ago) by pjm2
Branch:	MAIN
Changes since 1.8:	+22 -22 lines
Log Message:	Times of next UDP packet and Heartbeat is displayed on the form.
#	User	Rev	Content
1	pjm2	1.1	VERSION 5.00
2			Object = "{248DD890-BB45-11CF-9ABC-0080C7E7B78D}#1.0#0"; "MSWINSCK.OCX"
3			Begin VB.Form Form1
4			BorderStyle = 3 'Fixed Dialog
5			Caption = "TCP/UDP Test program"
6			ClientHeight = 5655
7			ClientLeft = 45
8			ClientTop = 330
9			ClientWidth = 5670
10			LinkTopic = "Form1"
11			MaxButton = 0 'False
12			MinButton = 0 'False
13			ScaleHeight = 5655
14			ScaleWidth = 5670
15			ShowInTaskbar = 0 'False
16			StartUpPosition = 3 'Windows Default
17	pjm2	1.8	Begin VB.Timer Timer1
18	pjm2	1.7	Left = 3840
19			Top = 120
20			End
21	pjm2	1.1	Begin VB.CommandButton Command3
22			Caption = "TCP to Filter"
23			Height = 375
24			Left = 3720
25	pjm2	1.6	TabIndex = 3
26	pjm2	1.1	Top = 2520
27			Width = 1575
28			End
29			Begin VB.TextBox Text4
30	pjm2	1.6	Height = 1575
31	pjm2	1.1	Left = 240
32			MultiLine = -1 'True
33			ScrollBars = 2 'Vertical
34	pjm2	1.6	TabIndex = 2
35	pjm2	1.1	Text = "nettest.frx":0000
36			Top = 3000
37			Width = 5055
38			End
39			Begin VB.CommandButton Command2
40			Caption = "TCP to FilterManager"
41			Height = 375
42			Left = 3360
43	pjm2	1.6	TabIndex = 1
44	pjm2	1.1	Top = 2040
45			Width = 1935
46			End
47	pjm2	1.5	Begin MSWinsockLib.Winsock TCPSock
48	pjm2	1.1	Left = 4920
49			Top = 120
50			_ExtentX = 741
51			_ExtentY = 741
52			_Version = 393216
53			End
54			Begin VB.CommandButton Command1
55			Caption = "Send UDP"
56			Height = 375
57			Left = 4320
58	pjm2	1.6	TabIndex = 0
59	pjm2	1.1	Top = 1560
60			Width = 975
61			End
62	pjm2	1.5	Begin MSWinsockLib.Winsock UDPSock
63	pjm2	1.1	Left = 4320
64			Top = 120
65			_ExtentX = 741
66			_ExtentY = 741
67			_Version = 393216
68			Protocol = 1
69			End
70	pjm2	1.9	Begin VB.Label Label2
71			Alignment = 1 'Right Justify
72			Caption = "Next heartbeat:"
73	pjm2	1.8	Height = 255
74	pjm2	1.9	Left = 120
75	pjm2	1.8	TabIndex = 8
76	pjm2	1.9	Top = 480
77			Width = 1455
78	pjm2	1.8	End
79	pjm2	1.9	Begin VB.Label Label1
80			Alignment = 1 'Right Justify
81			Caption = "Next UDP packet:"
82	pjm2	1.8	Height = 255
83	pjm2	1.9	Left = 120
84	pjm2	1.8	TabIndex = 7
85	pjm2	1.9	Top = 120
86			Width = 1455
87	pjm2	1.8	End
88	pjm2	1.9	Begin VB.Label Label4
89			Caption = "0"
90	pjm2	1.7	Height = 255
91	pjm2	1.9	Left = 1680
92	pjm2	1.7	TabIndex = 6
93	pjm2	1.9	Top = 480
94			Width = 615
95	pjm2	1.7	End
96	pjm2	1.9	Begin VB.Label Label3
97			Caption = "0"
98	pjm2	1.7	Height = 255
99	pjm2	1.9	Left = 1680
100	pjm2	1.7	TabIndex = 5
101	pjm2	1.9	Top = 120
102			Width = 615
103	pjm2	1.7	End
104	pjm2	1.6	Begin VB.Label Status
105			Caption = "Status:"
106	pjm2	1.1	Height = 255
107	pjm2	1.6	Left = 120
108			TabIndex = 4
109			Top = 5280
110			Width = 5415
111	pjm2	1.1	End
112			End
113			Attribute VB_Name = "Form1"
114			Attribute VB_GlobalNameSpace = False
115			Attribute VB_Creatable = False
116			Attribute VB_PredeclaredId = True
117			Attribute VB_Exposed = False
118	pjm2	1.4	Private Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As String, ByVal lpDefault As String, ByVal lpReturnedString As String, ByVal nSize As Long, ByVal lpFileName As String) As Long
119			Private Declare Function GetPrivateProfileInt Lib "kernel32" Alias "GetPrivateProfileIntA" (ByVal lpApplicationName As String, ByVal lpKeyName As String, ByVal nDefault As Long, ByVal lpFileName As String) As Long
120
121			Dim filterManagerHostname As String
122			Dim filterManagerTCPPort As Integer
123
124	pjm2	1.2	Dim filterHostname As String
125	pjm2	1.3	Dim filterTCPPort As Integer
126			Dim filterUDPPort As Integer
127			Dim fileList As String
128			Dim lastModified As String
129	pjm2	1.2
130	pjm2	1.7	Dim UDPUpdateTime As Integer
131			Dim TCPUpdateTime As Integer
132
133	pjm2	1.2	Dim protocolVersion As String
134			Dim connected As Boolean
135	pjm2	1.1	Dim responseNumber As Integer
136
137
138			Private Sub Command1_Click()
139
140	pjm2	1.5	' build the contents of the XML packet.
141	pjm2	1.4	xml = "<packet></packet>"
142
143	pjm2	1.2	' Use the first winsock control to send a UDP packet.
144	pjm2	1.5	UDPSock.RemoteHost = filterHostname
145			UDPSock.RemotePort = filterUDPPort
146			UDPSock.SendData xml
147	pjm2	1.6	Status.Caption = "i-scream Winhost " & protocolVersion & " - UDP packet sent."
148	pjm2	1.1
149			End Sub
150
151			Private Sub Command2_Click()
152
153	pjm2	1.3	' establish a TCP connection to a filtermanager
154	pjm2	1.5	TCPSock.Close
155			TCPSock.Connect filterManagerHostname, filterManagerTCPPort
156	pjm2	1.1
157			End Sub
158
159			Private Sub Command3_Click()
160	pjm2	1.3	' establish a TCP connection to a filter
161	pjm2	1.5	TCPSock.Close
162			TCPSock.Connect filterHostname, filterTCPPort
163	pjm2	1.1	End Sub
164
165	pjm2	1.2	Private Sub Form_Load()
166			protocolVersion = "1.1"
167	pjm2	1.4
168	pjm2	1.6	Status.Caption = "i-scream Winhost " & protocolVersion
169
170	pjm2	1.4	''''TEMP
171			filterManagerHostname = "killigrew.ukc.ac.uk"
172			filterManagerTCPPort = 4567
173			Exit Sub
174			''' ENDTEMP
175
176			On Error GoTo iniError
177			Dim buf As String * 256
178			Dim length As Long
179			length = GetPrivateProfileString("i-scream Winhost", "FilterManager", "<no value>", buf, Len(buf), App.Path & "winhost.ini")
180			filterManagerHostname = Left$(buf, length)
181			length = GetPrivateProfileString("i-scream Winhost", "FilterManagerPort", "<no value>", buf, Len(buf), App.Path & "winhost.ini")
182			filterManagerTCPPort = Left$(buf, length)
183
184	pjm2	1.6	Status.Caption = "i-scream Winhost " & protocolVersion & " connecting to Filter Manager"
185
186	pjm2	1.4	Exit Sub
187
188			iniError:
189			x = MsgBox("The i-scream Winhost could not read the correct settings from the winhost.ini file. Please correct these and try again.", 48, "Configuration not found")
190			End
191
192			End Sub
193
194	pjm2	1.5	Private Sub TCPSock_Connect()
195	pjm2	1.6
196			responseNumber = 0
197	pjm2	1.1
198	pjm2	1.3	' Send something as soon as we connect to the server.
199			If connected = False Then
200			' contact the FilterManager
201	pjm2	1.5	TCPSock.SendData "STARTCONFIG" & vbCrLf
202	pjm2	1.3	Else
203			' Contact the Filter
204	pjm2	1.5	TCPSock.SendData "HEARTBEAT" & vbCrLf
205	pjm2	1.3	End If
206	pjm2	1.1
207			End Sub
208
209	pjm2	1.5	Private Sub TCPSock_DataArrival(ByVal bytesTotal As Long)
210	pjm2	1.1
211			responseNumber = responseNumber + 1
212
213			' Get the line from the server.
214	pjm2	1.5	TCPSock.GetData response, vbString, bytesTotal
215	pjm2	1.1
216			' Remove linefeeds and returns from the line.
217			response = Replace(response, Chr(13), "")
218			response = Replace(response, Chr(10), "")
219			Text4.Text = Text4.Text & vbCrLf & response
220
221	pjm2	1.2	If connected = False Then
222			' Perform TCP configuration (1.1)
223			On Error GoTo configError
224			Select Case responseNumber
225			Case 1:
226			If Not response = "OK" Then GoTo configError
227	pjm2	1.5	TCPSock.SendData "LASTMODIFIED" & vbCrLf
228	pjm2	1.2	Case 2:
229			If response = "ERROR" Then GoTo configError
230	pjm2	1.3	lastModified = response
231	pjm2	1.5	TCPSock.SendData "FILELIST" & vbCrLf
232	pjm2	1.2	Case 3:
233			If response = "ERROR" Then GoTo configError
234	pjm2	1.3	fileList = response
235	pjm2	1.5	TCPSock.SendData "UDPUpdateTime" & vbCrLf
236	pjm2	1.2	Case 4:
237			If response = "ERROR" Then GoTo configError
238	pjm2	1.7	UDPUpdateTime = response
239	pjm2	1.5	TCPSock.SendData "TCPUpdateTime" & vbCrLf
240	pjm2	1.2	Case 5:
241			If response = "ERROR" Then GoTo configError
242	pjm2	1.7	TCPUpdateTime = response
243	pjm2	1.5	TCPSock.SendData "ENDCONFIG" & vbCrLf
244	pjm2	1.2	Case 6:
245			If Not response = "OK" Then GoTo configError
246	pjm2	1.5	TCPSock.SendData "FILTER" & vbCrLf
247	pjm2	1.2	Case 7:
248			'we got a filter list here.
249			readTo = 0
250			' get hostname
251			readTo = InStr(1, response, ";", vbBinaryCompare)
252			filterHostname = Mid(response, 1, readTo - 1)
253			response = Mid(response, readTo + 1, Len(response))
254			' get UDP Port number
255			readTo = InStr(1, response, ";")
256			filterUDPPort = Mid(response, 1, readTo - 1)
257			response = Mid(response, readTo + 1, Len(response))
258			' get TCP Port number
259			filterTCPPort = response
260	pjm2	1.5	TCPSock.SendData "END" & vbCrLf
261	pjm2	1.2	Case 8:
262			If Not response = "OK" Then GoTo configError
263			connected = True
264			responseNumber = 0
265	pjm2	1.5	TCPSock.Close
266	pjm2	1.2	Text4.Text = Text4.Text & vbCrLf & " <closed>"
267	pjm2	1.6	Status.Caption = "i-scream Winhost " & protocolVersion & " - got config okay"
268	pjm2	1.8	Label3.Caption = UDPUpdateTime
269			Label4.Caption = TCPUpdateTime
270			Timer1.Interval = 1000
271	pjm2	1.2	End Select
272			Else
273			' Perform a heartbeat (1.1)
274			On Error GoTo heartbeatError
275			Select Case responseNumber
276			Case 1:
277	pjm2	1.3	If Not response = "OK" Then GoTo heartbeatError
278	pjm2	1.5	TCPSock.SendData "CONFIG" & vbCrLf
279	pjm2	1.2	Case 2:
280	pjm2	1.3	If Not response = "OK" Then GoTo heartbeatError
281	pjm2	1.5	TCPSock.SendData fileList & vbCrLf
282	pjm2	1.2	Case 3:
283	pjm2	1.3	If Not response = "OK" Then GoTo heartbeatError
284	pjm2	1.5	TCPSock.SendData lastModified & vbCrLf
285	pjm2	1.2	Case 4:
286	pjm2	1.3	If Not response = "OK" Then GoTo heartbeatError
287	pjm2	1.5	TCPSock.SendData "ENDHEARTBEAT" & vbCrLf
288	pjm2	1.2	Case 5:
289	pjm2	1.3	If Not response = "OK" Then GoTo heartbeatError
290	pjm2	1.5	TCPSock.Close
291	pjm2	1.6	Status.Caption = "i-scream Winhost " & protocolVersion & " - heartbeat sent okay."
292	pjm2	1.2	End Select
293
294			End If
295
296
297			Exit Sub
298
299			configError:
300	pjm2	1.8	Status.Caption = "i-scream Winhost " & protocolVersion & " - FAILED to get configuration " & Err.Description
301			Exit Sub
302	pjm2	1.2	heartbeatError:
303	pjm2	1.8	Status.Caption = "i-scream Winhost " & protocolVersion & " - Heatbeat FAILED " & Err.Description
304			Exit Sub
305	pjm2	1.1	End Sub
306	pjm2	1.5
307	pjm2	1.8	Private Sub TCPTimer_Timer()
308
309			' establish a TCP connection to a filter
310			TCPSock.Close
311			TCPSock.Connect filterHostname, filterTCPPort
312
313			End Sub
314
315			Private Sub UDPTimer_Timer()
316
317			' build the contents of the XML packet.
318			xml = "<packet></packet>"
319
320			' Use the first winsock control to send a UDP packet.
321			UDPSock.RemoteHost = filterHostname
322			UDPSock.RemotePort = filterUDPPort
323			UDPSock.SendData xml
324			Status.Caption = "i-scream Winhost " & protocolVersion & " - UDP packet sent."
325
326			End Sub
327
328			Private Sub Timer1_Timer()
329
330			Label3.Caption = Label3.Caption - 1
331			Label4.Caption = Label4.Caption - 1
332
333			Status.Caption = "i-scream Winhost " & protocolVersion
334
335			If Label3.Caption < 1 Then
336			' build the contents of the XML packet.
337			xml = "<packet></packet>"
338
339			' Use the first winsock control to send a UDP packet.
340			UDPSock.RemoteHost = filterHostname
341			UDPSock.RemotePort = filterUDPPort
342			UDPSock.SendData xml
343			Status.Caption = "i-scream Winhost " & protocolVersion & " - UDP packet sent."
344			Label3.Caption = UDPUpdateTime
345			End If
346
347			If Label4.Caption < 1 Then
348			' establish a TCP connection to a filter
349			TCPSock.Close
350			TCPSock.Connect filterHostname, filterTCPPort
351			Label4.Caption = TCPUpdateTime
352			End If
353
354			End Sub