Console Application to Winform Application in VB.Net - vb.net

Question

I have tried this console app and it is a working but when i tried to apply the same codes to create a winform app there is no error but there is no output either.
here is the code:
Console
Imports MT4API
Module Module1
Sub Main()
Try
Dim symbol As String = "EURUSD"
Dim dde As New MT4DDE("fxpro")
AddHandler dde.OnQuote, AddressOf MT_OnQuote
dde.Connect()
dde.Subscribe(symbol)
Console.WriteLine("Press any key...")
Console.ReadKey()
dde.Unubscribe(symbol)
Catch ex As Exception
Console.WriteLine(ex.Message)
End Try
End Sub
Public Sub MT_OnQuote(ByVal sender As Object, ByVal args As QuoteEventArgs)
Console.WriteLine(args.Symbol & " " & args.Bid & " " & args.Ask)
End Sub
End Module
WinForm
Imports MT4API
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Try
Dim symbol As String = "EURUSD"
Dim dde As New MT4DDE("cms")
AddHandler dde.OnQuote, AddressOf Me.MT_OnQuote
dde.Connect()
dde.Subscribe(symbol)
TextBox1.AppendText("Press any key...")
dde.Unubscribe(symbol)
Catch ex As Exception
TextBox1.AppendText(ex.Message)
End Try
End Sub
Public Sub MT_OnQuote(ByVal sender As Object, ByVal args As QuoteEventArgs)
Try
'TextBox1.AppendText(args.Symbol)
TextBox1.Text += args.Symbol & vbCrLf
Catch ex As Exception
TextBox1.Text = TextBox1.Text + ex.Message + vbCrLf
End Try
End Sub
End Class
What seems to be the problem? Why the output on the console is not showing in the textbox on the winform.
Thank you very much.