[Aly El-Haddad]

كود :

Imports System.Runtime.InteropServices

Public Class Form1

    <DllImport("user32.dll")> _
    Public Shared Function GetAsyncKeyState(ByVal vKey As System.Windows.Forms.Keys) As Short
    End Function

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Timer1.Interval = 200
        Timer1.Enabled = True
    End Sub

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        If GetAsyncKeyState(Keys.F12) Then MsgBox("F12 Pressed!")
    End Sub
End Class