Termination of application on win9x

  • Thread starter Thread starter Jammie
  • Start date Start date
J

Jammie

Hi all,

I have a major problem with my application. For some reason on win9x my
application will not exit properly when the user shuts down there system.
This doesnt seem to be a problem on XP. My application in question is a
command prompt based app. For some reason the application does not seem to
recieve its termination signal. Is this a known problem with win9x systems
and if so is there a way to work arround it?

Thanks for any help in advance

Jamie
 
Hi Jammie!
I have a major problem with my application. For some reason on win9x my
application will not exit properly when the user shuts down there system.
This doesnt seem to be a problem on XP. My application in question is a
command prompt based app. For some reason the application does not seem to
recieve its termination signal. Is this a known problem with win9x systems
and if so is there a way to work arround it?
Click to expand...

You have correctly called "SetConsoleCtrlHandler", or?

See: SetConsoleCtrlHandler
http://msdn.microsoft.com/library/en-us/dllproc/base/setconsolectrlhandler.asp

Then normaly it should work.

I suppose, that after you receive the End-Event, you do not terminate
correctly...

--
Greetings
Jochen

My blog about Win32 and .NET
http://blog.kalmbachnet.de/
 
Set ConsoleCtrlHandler is set.

The code in question is the following:

BOOL WINAPI ConsoleControlHandler ( DWORD dwCtrlType ){
BOOL bReturnStatus = FALSE;
switch( dwCtrlType ){
case CTRL_C_EVENT:
if(gstate.activities_suspended) {
resume_client();
} else {
suspend_client();
}
bReturnStatus = TRUE;
break;
case CTRL_BREAK_EVENT:
case CTRL_CLOSE_EVENT:
case CTRL_SHUTDOWN_EVENT:
quit_client();
bReturnStatus = TRUE;
break;
case CTRL_LOGOFF_EVENT:
if (!gstate.executing_as_daemon) {
quit_client();
}
bReturnStatus = TRUE;
break;
}
return bReturnStatus;
}

When i run the application on windows 98 the above code does not seem to run
when a shutdown or logoff action is taken. Does anyone have any idea's?

Jamie
 
I have investigated further, this is to do with a bug in windows 9x where if
multiple messages are sent to the console control at the same time they get
ignored. This means the messages are never recieved by the application. I
dont know waht to do now. Im working on pre ME so im not sure waht my
options are. I am running a separate application that is running as a
windows application, maybe i could authorise the shutdown of the client from
this other program, but if no messages are being recieved how is this going
to help? I guess i could launch the console part as a child process but im
not sure how that would work.

Have other people here had this problem? What path have you taken to solve
this?
Jamie
 
I could, but ideally i need to cover the fact that people are still using
this platform.

Jamie
 
I have investigated further, this is to do with a bug in windows 9x where
if multiple messages are sent to the console control at the same time they
get ignored. This means the messages are never recieved by the application.
I dont know waht to do now. Im working on pre ME so im not sure waht my
options are. I am running a separate application that is running as a
windows application, maybe i could authorise the shutdown of the client
from this other program, but if no messages are being recieved how is this
going to help? I guess i could launch the console part as a child process
but im not sure how that would work.

Have other people here had this problem? What path have you taken to solve
this?
Click to expand...

You can acknowledge this as known bug in your program, and can state that
it's fixed in XP. :-)
 
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