Detect Hibernation from User Mode
David F.
I couldn't find any other group that seemed appropriate to ask this ...
How do I detect when the system is going to hibernate so I can perform an
action that needs to occur to ensure proper startup from hibernation? I
don't care about anything else (sleep, suspend, etc..), just hibernate?
TIA!!
Mike Collins
Have you looked at the WM_POWERBROADCAST message?
HTH Mike C
"David F." <df2...@community.nospam> wrote in message
news:000B4949-56C8-4F66...@microsoft.com...
> Hello,
>
Remy Lebeau
"David F." <df2...@community.nospam> wrote in message
news:000B4949-56C8-4F66...@microsoft.com...
> How do I detect when the system is going to hibernate so I can perform
> an action that needs to occur to ensure proper startup from hibernation?
> I don't care about anything else (sleep, suspend, etc..), just hibernate?
Look at the WM_POWERBROADCAST window message.
--
Remy Lebeau (TeamB)
David F.
> Stand-By?
Yes. Need to know that it's going to hibernate and not just stand-by or
suspend.
Mike Collins
This seems like an interesting problem. On the surface there doesn't seem
to be (AFAIK) and system for differentiating between Hibernation & stand-by.
However, I was looking on MSDN and there is the following information:
http://msdn.microsoft.com/en-us/library/aa373229(VS.85).aspx
This discusses the ACPI states which appear to vary from Sleep (S1, 2, 3),
Hibernation (S4) and Soft Off (S5). You can retrieve the SYSTEM_POWER_STATE
using the GetSystemPowerStatus() API. The problem is, I'm not sure how you
would use this. If the system is in hibernation then effectively nothing is
running so how you can call an API to retrieve that information I don't no.
HTH
Mike C
"David F." <df2...@community.nospam> wrote in message
news:DA5B621A-368A-4A5C...@microsoft.com...
Pavel A.
AFAIK you can get the target state of power transition only in kernel mode.
Note that with the "hybrid sleep" the system does suspend first,
and then may hibernate, without letting usermode code know.
- pa
Jialiang Ge [MSFT]
I once dealt with a similar case about how to distinguish standby vs
hibernation in user-mode. The product group's comment on that case was that
it is by-design that user-mode cannot tell the difference between the
different sleep states. We therefore researched and managed to work around
the issue based on the underlying business needs, i.e. why does the
customer need to hook the hibernation event? Is there any methods to
achieve the same result without the event? David, you mentioned that you
need to perform an action that is required to occur to ensure proper
startup from hibernation. May I suggest that you provide with us more info
of the action? I will perform the researches from this angle.
WM_POWERBROADCAST / PBT_APMSUSPEND events are sent for both Stand-by and
Hibernation cases. Before Windows Vista, when the system is suspended
(either Standby or Hibernate), the sequence of events is
WM_POWERBROADCAST / PBT_APMQUERYSUSPEND
WM_POWERBROADCAST / PBT_APMSUSPEND
When the system is resumed:
WM_POWERBROADCAST / PBT_APMRESUMEAUTOMATIC
The sequence of events for Standby and Hibernation is identical, thus, the
events cannot distinguish the two sleep modes. One difference between the
two cases is that, if it is "StandBy", you may get the event
PBT_APMRESUMESUSPEND after PBT_APMRESUMEAUTOMATIC. PBT_APMRESUMESUSPEND
indicates that the resume is triggered by user input, such as pressing a
key.
There was an event named PBT_APMSTANDBY that was sent for stand-by cases,
but it only works for mobile PC.
http://msdn.microsoft.com/en-us/library/ms704147.aspx
The SYSTEM_POWER_STATE enumeration mentioned by Mike is actually a kernel
mode data structure:
http://msdn.microsoft.com/en-us/library/bb264568.aspx
So it does not help in your user-mode code, either.
Here is a relevant codeproject article about the OS events like Sleep,
Stand-by, Hibernate, Power Status Changed, Low Battery, Critial Suspend, AC
Power, Battery Power, Battery Life.
http://www.codeproject.com/KB/system/OSEvents.aspx
Regards,
Jialiang Ge (jia...@online.microsoft.com, remove 'online.')
Microsoft Online Community Support
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David F.
notification undo any setup that may still exist.
""Jialiang Ge [MSFT]"" <jia...@online.microsoft.com> wrote in message
news:kqwyddhp...@TK2MSFTNGHUB02.phx.gbl...
firasmansouri
I am having the same issue making the difference between a stand by and a hibernation except that I can not work around the problem because that's what I need to monitor.
So,how can I get the target state of a power transition in kernel mode since that can't be done in user mode.
Pavel A. wrote:
David F.
14-Mar-09
David F. wrote:
AFAIK you can get the target state of power transition only in kernel mode.
Note that with the "hybrid sleep" the system does suspend first,
and then may hibernate, without letting usermode code know.
- pa
Previous Posts In This Thread:
On Friday, March 13, 2009 7:00 PM
David F. wrote:
Detect Hibernation from User Mode
Hello,
I couldn't find any other group that seemed appropriate to ask this ...
How do I detect when the system is going to hibernate so I can perform an
action that needs to occur to ensure proper startup from hibernation? I
don't care about anything else (sleep, suspend, etc..), just hibernate?
TIA!!
On Friday, March 13, 2009 8:27 PM
Remy Lebeau wrote:
Re: Detect Hibernation from User Mode
Look at the WM_POWERBROADCAST window message.
--
Remy Lebeau (TeamB)
On Friday, March 13, 2009 8:36 PM
Mike Collins wrote:
Do you specifically want to differenciate between Hibernation and Stand-By?
Do you specifically want to differenciate between Hibernation and Stand-By?
Have you looked at the WM_POWERBROADCAST message?
HTH Mike C
On Friday, March 13, 2009 10:58 PM
David F. wrote:
Yes.
Yes. Need to know that it is going to hibernate and not just stand-by or
suspend.
On Saturday, March 14, 2009 10:12 AM
Mike Collins wrote:
Hay David,This seems like an interesting problem.
Hay David,
This seems like an interesting problem. On the surface there doesn't seem
to be (AFAIK) and system for differentiating between Hibernation & stand-by.
However, I was looking on MSDN and there is the following information:
http://msdn.microsoft.com/en-us/library/aa373229(VS.85).aspx
This discusses the ACPI states which appear to vary from Sleep (S1, 2, 3),
Hibernation (S4) and Soft Off (S5). You can retrieve the SYSTEM_POWER_STATE
using the GetSystemPowerStatus() API. The problem is, I'm not sure how you
would use this. If the system is in hibernation then effectively nothing is
running so how you can call an API to retrieve that information I don't no.
HTH
Mike C
"David F." <df2...@community.nospam> wrote in message
news:DA5B621A-368A-4A5C...@microsoft.com...
On Saturday, March 14, 2009 8:52 PM
Pavel A. wrote:
David F.
David F. wrote:
AFAIK you can get the target state of power transition only in kernel mode.
Note that with the "hybrid sleep" the system does suspend first,
and then may hibernate, without letting usermode code know.
- pa
On Monday, March 16, 2009 5:12 AM
jialg wrote:
Good morning DavidI once dealt with a similar case about how to distinguish
Good morning David
I once dealt with a similar case about how to distinguish standby vs
hibernation in user-mode. The product group's comment on that case was that
it is by-design that user-mode cannot tell the difference between the
different sleep states. We therefore researched and managed to work around
the issue based on the underlying business needs, i.e. why does the
customer need to hook the hibernation event? Is there any methods to
achieve the same result without the event? David, you mentioned that you
need to perform an action that is required to occur to ensure proper
WM_POWERBROADCAST / PBT_APMRESUMEAUTOMATIC
On Wednesday, March 18, 2009 2:14 AM
David F. wrote:
I guess I'll have to just do what needs to be done with both then on resume
I guess I will have to just do what needs to be done with both then on resume
notification undo any setup that may still exist.
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Pavel A.
"Firas Mansouri" wrote in message
news:201011592528...@gmail.com...
> Hi,
> I am having the same issue making the difference between a stand by and a
> hibernation except that I can not work around the problem because that's
> what I need to monitor.
> So,how can I get the target state of a power transition in kernel mode
> since that can't be done in user mode.
Handle IRP_MN_QUERY_POWER and/or IRP_MN_SET_POWER
for System (Sx) states; the Parameters.Power.ShutdownType is the
system power action (shutdown, reset, hibernate).
Regards,
-- pa
alexisflores
i need to know when system suspends and when hibernates.
Private Sub Suspende(ByVal sender As Object, ByVal e As PowerModeChangedEventArgs)
If e.Mode = PowerModes.Suspend Then
Me.TXTMENS.Text = "Suspendido: " + SystemInformation.ComputerName + " - " + Date.Now.ToString
Me.EVENTO = "Suspend"
End If
If e.Mode = PowerModes.Resume Then
Me.TXTMENS.Text = "Activate: " + SystemInformation.ComputerName + " - " + Date.Now.ToString
Me.EVENTO = "Activate"
End If
Me.EQUIPO = SystemInformation.ComputerName
Dim x As conexion = New conexion
x.CON()
x.InsertChange(Me.TXTMENS.Text, Me.EVENTO, Me.EQUIPO)
x.Descon()
End Sub
Mike Collins wrote:
Hay David,This seems like an interesting problem.
14-Mar-09
Hay David,
This seems like an interesting problem. On the surface there doesn't seem
to be (AFAIK) and system for differentiating between Hibernation & stand-by.
However, I was looking on MSDN and there is the following information:
http://msdn.microsoft.com/en-us/library/aa373229(VS.85).aspx
This discusses the ACPI states which appear to vary from Sleep (S1, 2, 3),
Hibernation (S4) and Soft Off (S5). You can retrieve the SYSTEM_POWER_STATE
using the GetSystemPowerStatus() API. The problem is, I'm not sure how you
would use this. If the system is in hibernation then effectively nothing is
running so how you can call an API to retrieve that information I don't no.
HTH
Mike C
"David F." <df2...@community.nospam> wrote in message
news:DA5B621A-368A-4A5C...@microsoft.com...
Previous Posts In This Thread:
On Friday, March 13, 2009 7:00 PM
David F. wrote:
Detect Hibernation from User Mode
Hello,
I couldn't find any other group that seemed appropriate to ask this ...
How do I detect when the system is going to hibernate so I can perform an
action that needs to occur to ensure proper startup from hibernation? I
don't care about anything else (sleep, suspend, etc..), just hibernate?
TIA!!
On Friday, March 13, 2009 8:27 PM
Remy Lebeau wrote:
Re: Detect Hibernation from User Mode
Look at the WM_POWERBROADCAST window message.
--
Remy Lebeau (TeamB)
On Friday, March 13, 2009 8:36 PM
Mike Collins wrote:
Do you specifically want to differenciate between Hibernation and Stand-By?
Do you specifically want to differenciate between Hibernation and Stand-By?
Have you looked at the WM_POWERBROADCAST message?
HTH Mike C
On Friday, March 13, 2009 10:58 PM
David F. wrote:
Yes.
Yes. Need to know that it is going to hibernate and not just stand-by or
suspend.
On Saturday, March 14, 2009 10:12 AM
Mike Collins wrote:
Hay David,This seems like an interesting problem.
Hay David,
This seems like an interesting problem. On the surface there doesn't seem
to be (AFAIK) and system for differentiating between Hibernation & stand-by.
However, I was looking on MSDN and there is the following information:
http://msdn.microsoft.com/en-us/library/aa373229(VS.85).aspx
This discusses the ACPI states which appear to vary from Sleep (S1, 2, 3),
Hibernation (S4) and Soft Off (S5). You can retrieve the SYSTEM_POWER_STATE
using the GetSystemPowerStatus() API. The problem is, I'm not sure how you
would use this. If the system is in hibernation then effectively nothing is
running so how you can call an API to retrieve that information I don't no.
HTH
Mike C
"David F." <df2...@community.nospam> wrote in message
news:DA5B621A-368A-4A5C...@microsoft.com...
On Saturday, March 14, 2009 8:52 PM
Pavel A. wrote:
- pa
WM_POWERBROADCAST / PBT_APMRESUMEAUTOMATIC
On Friday, January 15, 2010 9:25 AM
Firas Mansouri wrote:
How to get the target state of a power transition in kernel mode
Hi,
I am having the same issue making the difference between a stand by and a hibernation except that I can not work around the problem because that's what I need to monitor.
So,how can I get the target state of a power transition in kernel mode since that can't be done in user mode.
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