Public Class Form1
    Private Declare Sub mouse_event Lib "user32" (ByVal dwflags As Long, ByVal dx As Long, ByVal dy As Long, ByVal cbuttons As Long, ByVal dwExtraInfo As Long)
    Private Const mouseclickup = 4
    Private Const mouseclickdown = 2
    Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vkey As Long) As Integer

    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
        mouse_event(mouseclickdown, 0, 0, 0, 0)
        mouse_event(mouseclickup, 0, 0, 0, 0)

    End Sub

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

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Timer1.Stop()
    End Sub

    Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick
        Dim hotkey As Boolean
        hotkey = GetAsyncKeyState(Keys.F1)
        If hotkey = True Then Timer1.Start()
        Dim hotkey1 As Boolean
        hotkey1 = GetAsyncKeyState(Keys.F2)
        If hotkey1 = True Then Timer1.Stop()

    End Sub
End Class