[AccessD] Can you use an API in vba to shutdown a monitor?

I only put this line in the click event of a button...

SendMessage Me.hwnd, WM_SYSCOMMAND, SC_MONITORPOWER, MONITOR_OFF

Thanks.
 
May God bless you beyond your imagination!
Lonnie Johnson
ProDev, Professional Development of MS Access Databases
Visit me at ==> http://www.prodev.us




 




________________________________
From: "Heenan, Lambert" <Lambert.Heenan at aiuholdings.com>
To: Access Developers discussion and problem solving <accessd at databaseadvisors.com>
Sent: Thursday, May 28, 2009 4:03:04 PM
Subject: Re: [AccessD] Can you use an API in vba to shutdown a monitor?

That's because one line of code turns off the screen, and the other turns it back on again.

Drop this code into a form to see it in action...

Option Compare Database
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 Any) As Long

Private Declare Sub sapiSleep Lib "kernel32" Alias "Sleep" (ByVal dwMilliseconds As Long)

Const SC_MONITORPOWER = &HF170&
Const MONITOR_ON = -1&
Const MONITOR_OFF = 2&
Const WM_SYSCOMMAND = &H112


Private Sub Command0_Click()
'
'Turn Monitor off:
SendMessage Me.hwnd, WM_SYSCOMMAND, SC_MONITORPOWER, MONITOR_OFF
sapiSleep 5000 ' wait 5 seconds
'Turn Monitor on:
SendMessage Me.hwnd, WM_SYSCOMMAND, SC_MONITORPOWER, MONITOR_ON

End Sub

Lambert


-----Original Message-----
From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Lonnie Johnson
Sent: Thursday, May 28, 2009 3:12 PM
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] Can you use an API in vba to shutdown a monitor?

Thanks. That seemed to work initially. It comes back on after about 2 seconds.

May God bless you beyond your imagination!
Lonnie Johnson
ProDev, Professional Development of MS Access Databases Visit me at ==> http://www.prodev.us









________________________________
From: "Heenan, Lambert" <Lambert.Heenan at aiuholdings.com>
To: Access Developers discussion and problem solving <accessd at databaseadvisors.com>
Sent: Thursday, May 28, 2009 1:53:34 PM
Subject: Re: [AccessD] Can you use an API in vba to shutdown a monitor?

http://forums.devshed.com/visual-basic-programming-52/turn-off-monitor-72283.html

Looks like the answer.

Lambert

-----Original Message-----
From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Lonnie Johnson
Sent: Thursday, May 28, 2009 2:31 PM
To: Access Developers discussion and problem solving
Subject: [AccessD] Can you use an API in vba to shutdown a monitor?

I am sure it is possible but I cannot find any code to shutdown my monitor with code. Does anyone have any direction?

Thanks.



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