🚀 go-pugleaf

"AJ" <adam_bouchard@sbcglobal.net> wrote in message
news:438251cb@newsgroups.borland.com...

>       PostMessage(hwnd, WM_QUERYENDSESSION, 0, 0) ;
>       PostMessage(hwnd, WM_ENDSESSION, 0, 0) ;

Those messages need to be issued using SendMessage() instead of
PostMessage(), and you need to take note of the return value of the
WM_QUERYENDSESSION message in particular.  Applications are allowed to
prevent system shutdown by returning TRUE to WM_QUERYENDSESSION.  If that
happens, then the application does not wish to be shut down, and you should
not be sending WM_ENDSESSION afterwards.

Also, you are sending the messages to every window in the application.  If
you do that, then you should be using the WM_CLOSE message instead.

An alternative to using EnumWindows() is to use PostThreadMessage() to issue
a WM_QUIT message to the Thread ID that is being passed to TerminateApp().
That will cause the main message queue to terminate, and thus the
application to terminate in general.  Of course, this requires there to be
an active message queue to begin with - just like the code you are currently
using depends on there being active windows in the application.  So there is
a possible tradeoff one way or another.

> My reasoning for thinking I could use the Shell_NotifyIcon function
> is that this code gives me the HANDLE (HWND) for the application.

Perhaps, but there is no guarantee that the HWND you get is the same HWND
that placed the system tray icon.  Also, the code doesn't tell you which
HWND is the main HWND for the application, if any.


Gambit