初学者提问！怎么使用Alt+S使得Button成为焦点

菜鸟提问！如何使用Alt+S使得Button成为焦点？
我想利用Alt+S把Button变成焦点，请问在vb.net中程序如何实现？

[解决办法]

VB.NET code

Private Sub frm_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown                  Select Case e.KeyCode                    Case e.ALT= True And Keys.S                       Button.focus()                   End Select    End Sub
[解决办法]

Form的keypreview属性设置为True

Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
       If e.Alt = True And e.KeyCode = Keys.S Then
           Button1.Focus()
       End If
   End Sub