Hi Krzysztof,
I can think of several solutions:
1. Don't call application.processmessages, but something else which only
updates the GUI display (I have seen this mentioned somewhere, but I don't
remember the name of the call now).
2. If you want to allow more than GUI updating, but want to prevent, f.e.
closing the window, then you can track the status of the IMAP thread, and
disallow certain things based upon that. For example the OnCloseWindow or
similar event can prevent the window close if IMAP is busy.
3. When you say the IMAP is running "on the control" - is this a GUI
component version of the IMAP? If so, you should put it in a DataModule
instead of on the form to solve this problem.
4. You could take the extreme approach as I sometimes do, and just put it in
another *process* which you launch in the background and communicate with
via the IPC components :) This has the added benefit of automatic queuing.
Anyway what I have wanted to see, and still haven't, is a simple example for
setting/using the OnHeartBeat option from (non GUI) THTTPSend in code.
(Yes, I know it's probably trivial, but examples help everyone).
Thank you,
Noah Silva
2011/5/12 Krzysztof <dib...@wp.pl>
> Hi,
>
> When I wanted solve problem with THTTPSend freezing, I always use threads
> which works perfect. But HTTP is stateless protocol so this was good
> solution, but how to solve problem with TIMAPSend which must have connection
> with imap server? I know that exists OnHeartBeat callback event, but I have
> bad memories with solutions of this kind. In OnHeartBeat event I call
> Application.ProcessMessages or Application.HandleMessages for GUI
> refreshing. I get some strange errors sometimes, for example: user try to
> close control (tabsheet or form) where imap is running, he click 2 or 3
> times but imap is busy and then my application crash (I supose HeartBeat
> call ProcessMessages which try to destroy this same control again). Anyone
> know some tricks for HeartBeat?
>
> Regards
>
>
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