🚀 go-pugleaf

Thanks,

This was nice to know. I never used RegisterWindowMessage()
but I think I will succeed to implement that properly... and wait
for the crash of the "explorer.exe" to see if my app is in the
"survivors" boat.


-- 
Best regards,
Vladimir Stefanovic

"Remy Lebeau (TeamB)" <no.spam@no.spam.com> wrote in message 
news:4275d933$1@newsgroups.borland.com...
>
> "Vladimir Stefanovic" <antivari@po.sbb.co.yu> wrote in message
> news:427522d4@newsgroups.borland.com...
>
>> I noticed that in some circumstances (do not know the moment)
>> a tray icon of my program is missing, although the task manager
>> says that the app is running. The funy thing is that also many other
>> tray icons are missing (not only mine) when that moment happens!
>
> That happens when the OS's shell program (explorer.exe) crashes and was
> re-started by the OS, thus every icon was lost when the System Tray was
> recreated.  Those icons that "survived" were because their respective
> applications recognized the restart and re-added their icons accordingly.
>
>> I suppose that the programs that "survived" know about that
>> problem and so has some additional code to add the icon again.
>
> Yes.  At program startup, use the RegisterWindowMessage() function to
> register the "TaskbarCreated" message.  Then override your form's 
> WndProc()
> method to catch that message.  When your form receives the message, it 
> means
> that the entire Taskbar, including the System Tray, has been recreated, so
> you can then re-add your icons at that time.
>
>
> Gambit
>
>