VB - Tastenschläge zählen

Imports System.Runtime.InteropServices

Public Class Form1


    <DllImport("user32.dll")> Private Shared Function GetAsyncKeyState(ByVal vKey As Integer) As Short
    End Function
    Public Const KeyPressed As Integer = -32767




    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Timer1.Interval = 1

        For Each key As Int32 In [Enum].GetValues(GetType(Windows.Forms.Keys))
            If GetAsyncKeyState(key) = -32767 Then
                Label1.Text += 1
            End If
        Next
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

           Me.Timer1.Start
    End Sub