🚀 go-pugleaf

Remy Lebeau (TeamB) wrote:
> It could be that you are simply trying to add the icon before the taskbar 
> itself has actualy been created yet.  To handle that (and to handle when the 
> Shell crashes and has to recreate the taskbar), you need to intercept the 
> "TaskbarCreated" broadcast message.  Refer to the following article for more 
> details:
> 
>     The Taskbar
>     http://msdn2.microsoft.com/en-us/library/bb776822.aspx

Thanks for the link. It contains very useful info. I implemented 
handling the TaskBarCreated message, but things sometimes still don't 
behave as expected.

Shell crashes are handled just fine now, the message is received and I 
recreate my icon when necessary.

However, while loading my app during Windows startup, I still notice 
from time to time that NIM_ADD fails without ever subsequently receiving 
the TaskBarCreated message.

It's not a real problem handling this issue; I will add a retry 
mechanism that attempts NIM_ADD until the call finally succeeds (I 
hope/expect this to work).

However, I'm still wondering why the TaskBarCreated message solution 
isn't also able to fix the failed startup icon creation ?

FYI. I used the same code as in the MSDN article you suggested (i.e. 
call RegisterMessage() during WM_CREATE).

Kris