Hi

Can someone explain to me what happens (or direct me to a place where it's 
explained) when a monitor is turned off (In a multi monitor configuration)

What kind of events are send? Is it possible to hook into this, preventing 
it from happening??

TIA

Søren

The topic has been discussed a few times in great lengths recently.
Please try to read this thread
http://groups.google.com/group/microsoft.public.development.device.drivers
/browse_thread/thread/9d40caa89229a618/b09786fca1f1d3b6?q=filter+driver+for+monitor
[please be aware of warp].

To summarize:
The monitor power-up/down sequence is pretty private within
the graphics stack and the Power-Manager,
and it does not offer exposed, supported or documented hooks/events.

Multimon does not make a difference. Monitors are powers off
in some order when the Power-Manager instructs Win32k.sys to do so.

Applications are generally unaware of this.
Full-screen DX applications may get a PRESENT_OCCLUDED when
they attempt to present a full-screen swapchain to a monitor
that is currently powered-off.

-- 

--
This posting is provided "AS IS" with no warranties, and confers no rights.
Use of any included script samples are subject to the terms specified at
http://www.microsoft.com/info/cpyright.htm


"Søren M. Olesen" <SrenMOlesen@discussions.microsoft.com> wrote in message 
news:79E2FD20-98A1-4B78-AF10-31956CA41D4A@microsoft.com...
>
> Hi
>
> Can someone explain to me what happens (or direct me to a place where it's
> explained) when a monitor is turned off (In a multi monitor configuration)
>
> What kind of events are send? Is it possible to hook into this, preventing
> it from happening??
>
> TIA
>
> Søren
>