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Tip of the Day
Language: VB4/32,VB5,VB6
Expertise: Intermediate
Feb 24, 2001

GetScreenSaverTimeout, SetScreenSaverTimeout - Control the screen saver's timeout

Private Const SPI_SETSCREENSAVETIMEOUT = 15
Private Const SPI_GETSCREENSAVETIMEOUT = 14
Private Const SPIF_SENDWININICHANGE = &H2
Private Const SPIF_UPDATEINIFILE = &H1

Private Declare Function SystemParametersInfo Lib "user32" Alias _
    "SystemParametersInfoA" (ByVal uAction As Long, ByVal uParam As Long, _
    ByRef lpvParam As Any, ByVal fuWinIni As Long) As Long

' return the screen saver's timeout value in seconds

Function GetScreenSaverTimeout() As Long
    Dim result As Long
    SystemParametersInfo SPI_GETSCREENSAVETIMEOUT, 0, result, 0
    GetScreenSaverTimeout = result
End Function

' set the screen saver timeout
'
' if second argument is True, it writes changes in user's profile
' returns True if the operation was successful, False otherwise

Function SetScreenSaverTimeout(ByVal seconds As Long, Optional PermanentChange _
    As Boolean) As Boolean
    Dim fuWinIni As Long
    If PermanentChange Then
        fuWinIni = SPIF_SENDWININICHANGE Or SPIF_UPDATEINIFILE
    End If
    SetScreenSaverTimeout = SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT , _
        seconds, ByVal 0&, fuWinIni) <> 0
End Function



Francesco Balena
 
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