Xojo Plugin

Receive a 16-bit Integer from a Socket

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveInt16, which reads exactly two bytes as a 16-bit integer and stores the result in the ReceivedInt property. Byte order and signedness are selectable.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

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Xojo Plugin

Dim success As Boolean
success = False

Dim socket As New Chilkat.Socket

//  Connect to the server using TLS.
Dim bTls As Boolean
bTls = True
Dim maxWaitMs As Int32
maxWaitMs = 5000
success = socket.Connect("example.com",5000,bTls,maxWaitMs)
If (success = False) Then
    System.DebugLog(socket.LastErrorText)
    Return
End If

//  Read exactly two bytes as a 16-bit integer and store the result in the ReceivedInt property.
//  The 1st argument selects byte order (1 = big-endian); the 2nd selects unsigned interpretation.
Dim bBigEndian As Boolean
bBigEndian = True
Dim bUnsigned As Boolean
bUnsigned = False
success = socket.ReceiveInt16(bBigEndian,bUnsigned)
If (success = False) Then
    System.DebugLog(socket.LastErrorText)
    Return
End If

System.DebugLog("Received 16-bit integer: " + Str(socket.ReceivedInt))