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VB编程实现关闭显示器

2013-06-24 14:39:22| 分类：编程-VB | 标签： |举报 |字号大中小订阅

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Option Explicit
Private Declare Function SendMessage _
Lib "user32" _
Alias "SendMessageA" (ByVal hWnd As Long, _
ByVal wMsg As Long, _
ByVal wParam As Long, _
ByVal lParam As Long) As Long
Const WM_SYSCOMMAND = &H112&
Const SC_MONITORPOWER = &HF170&

Private Sub Form_Load()
SendMessage Me.hWnd, WM_SYSCOMMAND, SC_MONITORPOWER, 2& '根据MSDN，这个参数如果是1，则表示显示器处于低能耗状态。
End Sub

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