Winsock

Can anyone show me any code that will send a message to a specific machine on a network?
Thanks very much in advance,
Bill

[AndyK]

The easiest way is to use MSWINSCK.ocx (p.s. sorry for being confused about your email)
Ok the basics of sending a message over two computers is this:
1) You have to connect to person's IP with identical port, so if his Remote Port will be "100" then your Local Port will have to be "100" too.
OK follow this steps and you should be fine:
1) Start new project
2) Add to it MSWINSCK.ocx (Microsoft winsock control)....to add it (default name should be winsock1, if not change it to winsock1)
use Ctrl+t if you don't know how :)
3) Add 5 textboxes (name them: txtRemIP,txtRemPort,txtLocalPort,MSGSEND, arrival)
4) Add 2 command buttons (name it: connect and send)
5) Ok now paste this strait into the form:


option Explicit


private Sub connect_Click()
With Winsock1
.RemoteHost = Trim(txtRemIP)
.RemotePort = Trim(txtRemPort)
If .LocalPort = empty then
.LocalPort = Trim(txtLocalPort)
.Bind .LocalPort
End If
End With
End Sub

private Sub Form_Load()
Winsock1.Protocol = sckUDPProtocol
txtRemIP = Winsock1.LocalIP
txtRemPort = "7"
txtLocalPort = "8"
MSGSEND = "Hello"
arrival = "Goodbye"
connect.Caption = "Connect"
send.Caption = "Send"
End Sub

private Sub MSGSEND_KeyPress(KeyAscii as Integer)
Dim NewL as string
If KeyAscii = 13 then
NewL = MSGSEND
Winsock1.SendData NewL
End If
End Sub

private Sub send_Click()
Dim NewL as string
NewL = MSGSEND
Winsock1.SendData NewL
End Sub

private Sub Winsock1_DataArrival(byval bytesTotal as Long)
Dim arrived as string
Winsock1.GetData arrived
arrival.Text = arrived
End Sub





Ok now to test it first follow carefully what's above then compile it to an exe....now run the project from VB and run exe
file that you have just compiled from code above...now you should have two windows in front of you. Make sure that local port and remote port
aren't the same and that one one window LOCAL port is the same as REMOTE port
on other form...this is vital or it won't work. Ok after all ports had been set and you have pressed "Connect" on both windows...
click send on one window and watch what happens on the other window...WOW :)....
ANy problems or if you need an explanations for this code...contact me.....