Can this be done in AutoIt?

[motionman95]

Kenny (ken82m) and I were discussing via PM methods that might allow someone to detect when the laptop lid closes.

We were wondering if this method might work:

I don't think windows has an API for it - but, according to this and this, ExRegisterCallback or DxgkDdiNotifyAcpiEvent can be used to get PO_CB_LID_SWITCH_STATE, which returns 1 or 0 based on the state of the laptop lid.

Edit:

This may help as well.

Edited May 25, 2009 by motionman95

[motionman95]

Bump

[Authenticity]

The screen is turned off when the lid is closed?

[motionman95]

I'm not sure - I think so...

[martin]

The screen is turned off when the lid is closed?

If the laptop is set to hibernate when the lid is closed you could check the $WM_POWERBROADCAST message.

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#include <GUIConstantsEx.au3>
 
 Global Const $WM_POWERBROADCAST =            0x218
 Global Const $PBT_APMRESUMEAUTOMATIC =      0x12
 Global Const $PBT_APMQUERYSUSPEND  =        0x0000
 Global Const $PBT_APMQUERYSTANDBY  =        0x0001
 Global Const $PBT_APMQUERYSUSPENDFAILED   =    0x0002
 Global Const $PBT_APMQUERYSTANDBYFAILED   =    0x0003
 Global Const $PBT_APMSUSPEND        =       0x0004
 Global Const $PBT_APMSTANDBY        =       0x0005
 Global Const $PBT_APMRESUMECRITICAL    =      0x0006
 Global Const $PBT_APMRESUMESUSPEND  =     0x0007
 Global Const $PBT_APMRESUMESTANDBY   =   0x0008
 Global Const $PBTF_APMRESUMEFROMFAILURE  =  0x00000001
 Global Const $PBT_APMBATTERYLOW        =      0x0009
 Global Const $PBT_APMPOWERSTATUSCHANGE   =  0x000A
 Global Const $PBT_APMOEMEVENT     =          0x000B
 
 
 
 GUICreate("detect WM_POWERBROADCAST")
 GUISetState()
 GUIRegisterMsg($WM_POWERBROADCAST, "PowerEvents")
 $sleeping = False
 $lidClosed = False
 While GUIGetMsg() <> -3
 WEnd
 
 
 
 Func PowerEvents($hWnd, $Msg, $wParam, $lParam)
     Switch $wParam 
         Case $PBT_APMQUERYSTANDBY;perhaps it should be $PBT_APMSUSPEND
              $lidClosed = True;?
              $sleeping = True;?
          Case $PBT_APMRESUMEAUTOMATIC 
              $sleeping = False
              $lidClosed = False
      EndSwitch
      
     
     Return $GUI_RUNDEFMSG
 EndFunc

Edit: added comment re $PBT_APMSUSPEND

Edited May 25, 2009 by martin

[ken82m]

I tried something like that, since I just have my machine stay on when I lose the lid.

The system still turns of the monitor. That behavior seems unchangeable.

Anyway you could use that as an alert and then prevent the suspend or hibernate. Except MS disabled that ability starting in Vista.

So the only way to do it seems to be grab the specific lid closed event.

[motionman95]

http://www.autoitscript.com/forum/index.ph...&hl=monitor

With that thread, we can tell when the screen has been turned off - but only, I guess, if we can intercept the messages ProgMan gets.

[motionman95]

Would these links make it possible to detect whether the monitor is on or off?

http://stackoverflow.com/questions/203355/...ndows-on-or-off

WM_SYSCOMMAND:

http://msdn.microsoft.com/en-us/library/ms646360(VS.85).aspx

[motionman95]

I don't like detecting standby because there's no way of knowing whether it's user or windows's initiated. But I guess that means that this can't be done.