Help Joystick Hook

I'm using this code for a real time Joystick events, works very well but only check Directional buttons like up,down,right,left and the 4 buttons X,O,Y,L
I need to read the extra buttons like L1,L2,L3,L4, Start etc, but don't recognize


Class

Code:

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Imports System.ComponentModel
Imports System.Runtime.InteropServices

Public Class Joystick
    Inherits NativeWindow

    Private parent As Form
    Private Const MM_JOY1BUTTONDOWN As Long = &H3B5
    Private Const MM_JOY1BUTTONUP As Long = &H3B7
    Private Const MM_JOY1MOVE As Long = &H3A0
    Private Const MM_JOY1ZMOVE As Long = &H3A2
    'Public Event Move(ByVal joystickPosition As Point)
    Public btnValue As String
    Public Event Movement()
    Public Event BtnDown()
    Public Event BtnUp()


    <StructLayout(LayoutKind.Explicit)>
    Private Structure JoyPosition
        <FieldOffset(0)>
        Public Raw As IntPtr
        <FieldOffset(0)>
        Public XPos As UShort
        <FieldOffset(2)>
        Public YPos As UShort
    End Structure

    Private Class NativeMethods

        Private Sub New()
        End Sub

        <DllImport("winmm", CallingConvention:=CallingConvention.Winapi, EntryPoint:="joySetCapture", SetLastError:=True)>
        Public Shared Function JoySetCapture(ByVal hwnd As IntPtr, ByVal uJoyID As Integer, ByVal uPeriod As Integer, <MarshalAs(UnmanagedType.Bool)> ByVal changed As Boolean) As Integer
        End Function

    End Class

    Public Sub New(ByVal parent As Form, ByVal joyId As Integer)
        AddHandler parent.HandleCreated, AddressOf Me.OnHandleCreated
        AddHandler parent.HandleDestroyed, AddressOf Me.OnHandleDestroyed
        AssignHandle(parent.Handle)
        Me.parent = parent
        Dim result As Integer = NativeMethods.JoySetCapture(Me.Handle, joyId, 100, True)
    End Sub

    Private Sub OnHandleCreated(ByVal sender As Object, ByVal e As EventArgs)
        AssignHandle(DirectCast(sender, Form).Handle)
    End Sub

    Private Sub OnHandleDestroyed(ByVal sender As Object, ByVal e As EventArgs)
        ReleaseHandle()
    End Sub

    Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
       
        If m.Msg = JOY1MOVE Then
            RaiseEvent Movement()
        End If
        If m.Msg = MM_JOY1BUTTONDOWN Then
            RaiseEvent BtnDown()
        End If

        MyBase.WndProc(m)
    End Sub

End Class

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In main form put

Code:

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    Private WithEvents joystick1 As Joystick

    Private Sub joystick1_BtnDown() Handles joystick1.BtnDown

    End Sub
    Private Sub joystick1_Movement() Handles joystick1.Movement

    End Sub

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In form load put

Code:

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joystick1 = New Joystick(Me, 0)

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https://learn.microsoft.com/en-us/pr...57112(v=vs.85)