Does rundll32.exe supplies missing parameters??

[Guest Academia]

If this statement appears alone in a .bat file it causes hibernation

rundll32.exe powrprof.dll,SetSuspendState Hibernate

 

SetSuspendState takes 3 parameters.

What does the above statement supply as parameters?

 

Why does "Hibernate" have a value?

 

 

 

Thanks

[Guest Newbie Coder]

Re: Does rundll32.exe supplies missing parameters??

 

Academia,

 

The statement you wrote about is the following:

 

run the powrprof.dll calling the SetSuspendState function passing the Hibernate as a

boolean parameter

 

See:

 

http://msdn2.microsoft.com/en-us/library/aa373201.aspx

 

The function declaration is in C++ but the boolean are either TRUE or FALSE

 

As you see the function declaration is in PowrProf.h header

 

Simple, isn't it?

 

--

Newbie Coder

(It's just a name)

 

 

 

 

"Academia" <academiaNOSPAM@a-znet.com> wrote in message

news:Ow99xTLdIHA.1208@TK2MSFTNGP03.phx.gbl...

> If this statement appears alone in a .bat file it causes hibernation

> rundll32.exe powrprof.dll,SetSuspendState Hibernate

>

> SetSuspendState takes 3 parameters.

> What does the above statement supply as parameters?

>

> Why does "Hibernate" have a value?

>

>

>

> Thanks

>

>

>

>

>

[Guest Academia]

Re: Does rundll32.exe supplies missing parameters??

 

My question relates more to what a .bat file does.

Or maybe it is what rundll32.exe does.

 

I've seen the declaration of SetSuspendState and it requires 3 parameters.

 

But the example I gave supplies one parameter, Hibernate, which isn't set to

anything.

I imagine it is initialized to zero which is false to SetSuspendState.

 

But when rundll32 calls SetSuspendState it needs to supply 3 parameters and

I've only told it that there is 1 parameter.

 

If SetSuspendState is called with 1 parameter I wonder if it will grab junk

from the stack for the other two.

 

 

Thanks

 

"Newbie Coder" <newbiecoder@spammeplease.com> wrote in message

news:OlZzghMdIHA.1208@TK2MSFTNGP03.phx.gbl...

> Academia,

>

> The statement you wrote about is the following:

>

> run the powrprof.dll calling the SetSuspendState function passing the

> Hibernate as a

> boolean parameter

>

> See:

>

> http://msdn2.microsoft.com/en-us/library/aa373201.aspx

>

> The function declaration is in C++ but the boolean are either TRUE or

> FALSE

>

> As you see the function declaration is in PowrProf.h header

>

> Simple, isn't it?

>

> --

> Newbie Coder

> (It's just a name)

>

>

>

>

> "Academia" <academiaNOSPAM@a-znet.com> wrote in message

> news:Ow99xTLdIHA.1208@TK2MSFTNGP03.phx.gbl...

>> If this statement appears alone in a .bat file it causes hibernation

>> rundll32.exe powrprof.dll,SetSuspendState Hibernate

>>

>> SetSuspendState takes 3 parameters.

>> What does the above statement supply as parameters?

>>

>> Why does "Hibernate" have a value?

>>

>>

>>

>> Thanks

>>

>>

>>

>>

>>

>