How to implement shutdown hook ?

[Guest]

Hi,

I am developing an infrastructure dll in c#.
my dll can be use by all kind of application containers win/web/console.
how do i implement a shutdown hook which will be called when the user exit
from the application (for all kind of .NET applications)?

for example in c# console application i do this with win32 interop
SetConsoleCtrlHandler function, but how do i know what kind of application
loaded my dll.

Thanks.

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

You have to detect the windows messages your app receive when the system is
going down, I do not remember the names ( you could search for it either in
google of in the .h files ) I do interact with the logoff event, for this I
use WM_ENDSESSION/ WM_QUERYENDSESSION

Take a look at the MSDN about them


cheers,

 

[Guest]

Hi Ignacio Machin,

is it good also for c# console applications ?

Thanks.

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

I do not think so, a Console app does not have a message pump, so you get
no messages from the OS, no idea how to do it in that case

cheers,

 

[Guest]

Thanks Ignacio Machin,

for console you can do it with SetConsoleCtrlHandler , see GC.KeepAlive
method sample in the MSDN help.