I probably wasn't clear in my code - I was doing things from the top of my
head at the time. To clarify:



DECLARE INTEGER ExitProcess IN Win32API ;
INTEGER nExitCode

There is no space in "ExitProcess". nExitCode is an integer value (actually
a long) that is returned to the Windows environment by the terminated
process (in our case, VFP) and can be examined programmatically through the
Win32API. I use values other than 0 frequently to communicate return
results to things like InstallShield rather than loading up registry keys or
a batch file to pass a single result code. I've found that it cleans up VFP
better than QUIT or CANCEL in many cases where odd DLL Declarations haven't
been cleaned up at exit, and it shuts down all threads spawned by VFP.

ON SHUTDOWN ExitProcess(0)

should have read

ON SHUTDOWN =ExitProcess(0)

I've been spoiled by my wrapper class; I normally have a call to the
ExitVFP() method of my API class there, which does a little cleanup before
issuing the API call, and I forgot to prefix the DLL call with an '='. It's
silly to actually perform an assign with the result, since firing it is an
absolute kill on VFP.

nMyReturnValue=ExitWindowsEx(nChosenShutdownMode,0)

nChosenShutdownMode should be assigned to one of the #DEFINEd values given
in the example. To force a full shutdown, nChosenShutdownMode should be
assigned a value of 1; if APM is enabled on a Win95, Win98 or NT 5.0 beta
machine, your system will actually power down. A value of 0 starts the
Login New User Dialog and should trigger a call to the ON SHUTDOWN code in
your app (in my case, a call to ExitProcess()), and with no ON SHUTDOWN
active, has a nasty tendency under Win95 to leave the app running if the
same userid is logged in again. A value of 2 causes a Windows shutdown
followed by a warm boot, that will eventually restart Windows for you. I
use this a good deal in conjunction with a registry RunOnce key value to
shut down an app and restart Windows when controlling installation processes
- do what can be done prior to rebooting in one app, have a second app that
picks up from there, write the path for the second app in the RunOnce key to
start the next phase of the install after reboot, and do an
=ExitWindowsEx(2,0). Works like a charm except in some really obnoxious
dual-boot configurations that default to starting the wrong version of
Windows after a warm boot.

Hope this helps a bit,

Ed


>Dear Nigel,
>Thank you for your help. Due to my inabilty to follow
>instructions despite the completeness of Mr.Rauh's
>directions I have had the following problems iln
>implimenting them. I'm sure you were more
>sucessful as I simply do not have the requisite
>experience with API and made some stupid error.
>1) On the Declare Integer ExitProcess IN Win32API;
> Integer Exitcode I get an error "Cannot find entry
> point Process in the dll.
>2) ON SHUTDOWN Exit Process(0)
> I get "unrecognized command verb".
>3) nMyReturnValue=ExitWindowsEx(nChosenShutdownMode,(0)
> Returns "variable'NCHOSENSHUTDOWNMODE' is not found"
>
>I am hoping you will shed some light on what I am doing
>wrong. Thanks Derek Linebarger.