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发表于 2004-8-10 12:45:00
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Re:有没有办法获取Alt+Ctrl+Delete的消息?
Private Declare Function SystemParametersInfo Lib "user32" _
Alias "SystemParametersInfoA" (ByVal uAction As Long, _
ByVal uParam As Long, lpvParam As Any, _
ByVal fuWinIni As Long) As Long
Private Const SPI_SCREENSAVERRUNNING = 97
Private Sub Command1_Click()
Dim ret As Integer
Dim pOld As Boolean
If Command1.Caption = "屏蔽" Then '使Ctrl+Alt+Del有效
ret = SystemParametersInfo(SPI_SCREENSAVERRUNNING, True, pOld, 0)
Command1.Caption = "有效"
Else '使Ctrl+Alt+Del无效
ret = SystemParametersInfo(SPI_SCREENSAVERRUNNING, False, pOld, 0)
Command1.Caption = "屏蔽"
End If
End Sub
Private Sub Form_Load()
Command1.Caption = "屏蔽"
End Sub
Private Sub Form_Unload(Cancel As Integer)
Dim ret As Integer
Dim pOld As Boolean
'退出前使ALT+CTL+DEL有效
ret = SystemParametersInfo(SPI_SCREENSAVERRUNNING, False, pOld, 0)
End Sub
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