VB如何关闭显示器并按特定键激活

禁用显示器
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd _
As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Const WM_SYSCOMMAND = &H112&
Const SC_MONITORPOWER = &HF170&
Private Sub Command1_Click()
SendMessage Me.hwnd, WM_SYSCOMMAND, SC_MONITORPOWER, ByVal 2&
end sub

Private Sub Form_KeyPress(KeyAscii As Integer)
For KeyAscii = 1 To 127
Exit For
Next KeyAscii
End Sub
禁所有键，除了要点的那个