[مبتدئ]

تفضل

كود :

Public Class Form1
    Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
        If e.Modifiers = Keys.Alt And e.KeyCode = Keys.F4 Then
            Me.Close()
        End If
    End Sub
End Class