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VB.NET UWP/WinRT Examples

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(VB.NET UWP/WinRT) SSL Client Example

Demonstrates how to connect to an SSL server, send a simple message, receive a simple response, and disconnect.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads

Chilkat for the Universal Windows Platform (UWP)

Dim socket As New Chilkat.Socket

Dim success As Boolean
success = socket.UnlockComponent("Anything for 30-day trial")
If (success <> True) Then
    Debug.WriteLine(socket.LastErrorText)
    Exit Sub
End If


Dim ssl As Boolean = True
Dim maxWaitMillisec As Integer = 20000

'  The SSL server hostname may be an IP address, a domain name,
'  or "localhost".  You'll need to change this:
Dim sslServerHost As String
sslServerHost = "123.123.88.88"
Dim sslServerPort As Integer = 8123

'  Connect to the SSL server:
success = Await socket.ConnectAsync(sslServerHost,sslServerPort,ssl,maxWaitMillisec)
If (success <> True) Then
    Debug.WriteLine(socket.LastErrorText)
    Exit Sub
End If


'  Set maximum timeouts for reading an writing (in millisec)
socket.MaxReadIdleMs = 20000
socket.MaxSendIdleMs = 20000

'  Send a "Hello Server! -EOM-" message:
success = Await socket.SendStringAsync("Hello Server! -EOM-")
If (success <> True) Then
    Debug.WriteLine(socket.LastErrorText)
    Exit Sub
End If


'  The server (in this example) is going to send a "Hello Client! -EOM-"
'  message.  Read it:
Dim receivedMsg As String = Await socket.ReceiveUntilMatchAsync("-EOM-")
If (socket.LastMethodSuccess <> True) Then
    Debug.WriteLine(socket.LastErrorText)
    Exit Sub
End If


'  Close the connection with the server
'  Wait a max of 20 seconds (20000 millsec)
success = Await socket.CloseAsync(20000)

Debug.WriteLine(receivedMsg)

 

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