Can i shut windows down from my C# application?

[Bredal Jensen]

I'm thinking of soething equivalent to "exitwindows"

 

[Nicholas Paldino [.NET/C# MVP]]

Bredal,

The framework doesn't expose anything like this, but you can shut down
windows by making a call to the ExitWindows or ExitWindowsEx API functions
through the P/Invoke layer.

The declaration for ExitWindows is as follows:

[DllImport("user32.dll", SetLastError=true)]
public static extern bool ExitWindows(
[MarshalAs(UnmanagedType.U4)]
int dwReserved,
[MarshalAs(UnmanagedType.U4)]
int uReserved);

Hope this helps.

 

[Bredal Jensen]

great , but i do i import "mscorlib.dll"?

i wonder why this :#using <mscorlib.dll>

bothers my compiler?

 

[Nicholas Paldino [.NET/C# MVP]]

Bredal,

#using <mscorlib.dll> doesn't so anything for you. Basically, that's a
namespace declaration, and there is no namespace named "mscorlib.dll". In
order to set a reference, you have to right click on the references folder
and then select "add reference". By default though, mscorlib is added as a
reference.

 

[Bredal Jensen]

so why i'm getting the following error?


...\Form1.cs(23): The type or namespace name 'DllImport' could not be found
(are you missing a using directive or an assembly reference?)

Bredal,

#using <mscorlib.dll> doesn't so anything for you. Basically, that's a
namespace declaration, and there is no namespace named "mscorlib.dll". In
order to set a reference, you have to right click on the references folder
and then select "add reference". By default though, mscorlib is added as a
reference.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

great , but i do i import "mscorlib.dll"?

i wonder why this :#using <mscorlib.dll>

bothers my compiler?

 

[Nicholas Paldino [.NET/C# MVP]]

Bredal,

You need to place the following at the top of the file:

#using System.Runtime.InteropServices;


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

so why i'm getting the following error?


..\Form1.cs(23): The type or namespace name 'DllImport' could not be found
(are you missing a using directive or an assembly reference?)

in
message news:[email protected]...

Bredal,

#using <mscorlib.dll> doesn't so anything for you. Basically, that's a
namespace declaration, and there is no namespace named "mscorlib.dll".
In
order to set a reference, you have to right click on the references
folder
and then select "add reference". By default though, mscorlib is added as a
reference.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

great , but i do i import "mscorlib.dll"?

i wonder why this :#using <mscorlib.dll>

bothers my compiler?




I'm thinking of soething equivalent to "exitwindows"

 

[Nicholas Paldino [.NET/C# MVP]]

Bredal,

Sorry, that is:

using System.Runtime.InteropServices;

(no sharp symbol).



--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

so why i'm getting the following error?


..\Form1.cs(23): The type or namespace name 'DllImport' could not be found
(are you missing a using directive or an assembly reference?)

in
message news:[email protected]...

Bredal,

#using <mscorlib.dll> doesn't so anything for you. Basically, that's a
namespace declaration, and there is no namespace named "mscorlib.dll".
In
order to set a reference, you have to right click on the references
folder
and then select "add reference". By default though, mscorlib is added as a
reference.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

great , but i do i import "mscorlib.dll"?

i wonder why this :#using <mscorlib.dll>

bothers my compiler?




I'm thinking of soething equivalent to "exitwindows"

 

[Jon Skeet [C# MVP]]

so why i'm getting the following error?


..\Form1.cs(23): The type or namespace name 'DllImport' could not be found
(are you missing a using directive or an assembly reference?)

Because the DllImportAttribute type is in the
System.Runtime.InteropServices namespace, and I suspect you haven't got

using System.Runtime.InteropServices;

in your list of using directives.

Bredal,

#using <mscorlib.dll> doesn't so anything for you. Basically, that's a
namespace declaration, and there is no namespace named "mscorlib.dll". In
order to set a reference, you have to right click on the references folder
and then select "add reference". By default though, mscorlib is added as a
reference.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

great , but i do i import "mscorlib.dll"?

i wonder why this :#using <mscorlib.dll>

bothers my compiler?




I'm thinking of soething equivalent to "exitwindows"

 

[Bredal Jensen]

Great, it compiles fine.



Thank you so much..

Bredal,

Sorry, that is:

using System.Runtime.InteropServices;

(no sharp symbol).



--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

so why i'm getting the following error?


..\Form1.cs(23): The type or namespace name 'DllImport' could not be found
(are you missing a using directive or an assembly reference?)

in
message news:[email protected]...

Bredal,

#using <mscorlib.dll> doesn't so anything for you. Basically,

that's
a

namespace declaration, and there is no namespace named "mscorlib.dll".
In
order to set a reference, you have to right click on the references
folder
and then select "add reference". By default though, mscorlib is added

as
a

reference.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)


great , but i do i import "mscorlib.dll"?

i wonder why this :#using <mscorlib.dll>

bothers my compiler?




I'm thinking of soething equivalent to "exitwindows"

 

[Willy Denoyette [MVP]]

The framework exposes this through the System.Management classes and WMI's
class Win32_OperatingSystem.
In general using this is the prefered way to shutdown a system on systems
running W2K or higher.

Willy.

Bredal,

The framework doesn't expose anything like this, but you can shut down
windows by making a call to the ExitWindows or ExitWindowsEx API functions
through the P/Invoke layer.

The declaration for ExitWindows is as follows:

[DllImport("user32.dll", SetLastError=true)]
public static extern bool ExitWindows(
[MarshalAs(UnmanagedType.U4)]
int dwReserved,
[MarshalAs(UnmanagedType.U4)]
int uReserved);

Hope this helps.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

I'm thinking of soething equivalent to "exitwindows"

 

[Bredal Jensen]

Great great ...

Thank you...

The framework exposes this through the System.Management classes and WMI's
class Win32_OperatingSystem.
In general using this is the prefered way to shutdown a system on systems
running W2K or higher.

Willy.

message news:[email protected]...

Bredal,

The framework doesn't expose anything like this, but you can shut down
windows by making a call to the ExitWindows or ExitWindowsEx API functions
through the P/Invoke layer.

The declaration for ExitWindows is as follows:

[DllImport("user32.dll", SetLastError=true)]
public static extern bool ExitWindows(
[MarshalAs(UnmanagedType.U4)]
int dwReserved,
[MarshalAs(UnmanagedType.U4)]
int uReserved);

Hope this helps.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

I'm thinking of soething equivalent to "exitwindows"

 

[Bredal Jensen]

I was not able to locate

the System.Management namespace

The framework exposes this through the System.Management classes and WMI's
class Win32_OperatingSystem.
In general using this is the prefered way to shutdown a system on systems
running W2K or higher.

Willy.

message news:[email protected]...

Bredal,

The framework doesn't expose anything like this, but you can shut down
windows by making a call to the ExitWindows or ExitWindowsEx API functions
through the P/Invoke layer.

The declaration for ExitWindows is as follows:

[DllImport("user32.dll", SetLastError=true)]
public static extern bool ExitWindows(
[MarshalAs(UnmanagedType.U4)]
int dwReserved,
[MarshalAs(UnmanagedType.U4)]
int uReserved);

Hope this helps.


--
- Nicholas Paldino [.NET/C# MVP]
- (e-mail address removed)

I'm thinking of soething equivalent to "exitwindows"

 

[Willy Denoyette [MVP]]

I was not able to locate

the System.Management namespace

Dir you add a reference to System.Management.dll? Guess not.

Willy.

 

[Bredal Jensen]

you are right...

Dir you add a reference to System.Management.dll? Guess not.

Willy.