frmserver.class

Gambas is a graphical development environment based on a Basic interpreter, like Visual Basic. It us

' Gambas class file

PRIVATE UDPServer AS UdpSocket
PUBLIC SUB Button1_Click()

  DIM MyFrm AS FrmClient
  MyFrm=NEW FrmClient
  MyFrm.Visible=TRUE

  

END

'//////////////////////////////////////////////////
' Server Stuff
'//////////////////////////////////////////////////
PUBLIC SUB Button2_Click()

  IF UDPServer.Status <= Net.Inactive THEN
    UDPServer.Bind(Val(TextBox1.Text))
    IF UDPServer.Status=Net.Active THEN
      Button2.Text=("Stop")
      TextBox1.Enabled=FALSE
    END IF
  ELSE
    CLOSE #UDPServer
    Button2.Text=("Start !")
    TextBox1.Enabled=TRUE
  END IF    

END

PUBLIC SUB Form_Open()

  UDPServer=NEW UdpSocket AS "UDPServer"

END

PUBLIC SUB Form_Close()

  IF UDPServer.Status >0 THEN CLOSE #UDPServer

END

PUBLIC SUB UDPServer_Error()
  
  Button2.Text="Start !"
  TextBox1.Enabled=TRUE
  SELECT CASE UDPServer.Status
    CASE Net.CannotBindSocket
      Message.Error(("Unable to Bind to that port"))
    CASE Net.CannotCreateSocket
      Message.Error(("System does not allow to create a socket"))
    CASE Net.CannotRead
      Message.Error(("Error Sending Data"))
    CASE Net.CannotWrite
      Message.Error(("Error Receiving Data"))
  END SELECT
  
END

PUBLIC SUB UDPServer_Read()
  
  DIM sCadRet AS String
  DIM sCad AS String
  DIM MyLoop AS Integer 

  sCadRet=""
  READ #UDPServer,sCad,Lof(UDPserver)
  TextArea1.Text=TextArea1.Text &  ("Received data from : ") & UDPServer.SourceHost & ":" & UDPServer.SourcePort & Chr(13) & Chr(10)
  TextArea1.Text=TextArea1.Text & ("Data --> ") & sCad & Chr(13) & Chr(10)
  IF Len(sCad)>0 THEN
    FOR myloop=Len(sCad) TO 1 STEP -1
      sCadRet=sCadRet & Mid(sCad,myloop,1)
    NEXT
    UDPServer.TargetHost=UDPServer.SourceHost
    UDPServer.TargetPort=UDPServer.SourcePort
    WRITE #UDPServer,sCadRet,Len(sCadRet)
  END IF
  
END