Board index » cppbuilder » How to use tform in TServiceApplication?

2006-03-01 09:19:24 PM
cppbuilder109
I try to use a TForm in a service application, but I get always an exception
error.
I read that in a service applic. a TForm cannot be used, is it true?
If it is true, how can I add a Form to a service?
Thanks
Juan Diego Garcés
 

your service.
Look at ControlService() API.
--
Best Regards,
Vladimir Stefanovic
 

"Juan Diego Garcés" < XXXX@XXXXX.COM >wrote in message
runs without a user logged in.
Borland's service architecture is multi-threaded, and VCL visual controls
cannot be used directly in threads.
technically possible, but there are many things to watch out for.
Gambit
 

{smallsort}

I want to use a TForm to receive broadcast messages. I wrote another
application that send broadcast messages to other applications to notify
there is an alarm in a PLC, I have two applications that have to receive
this message, the first one is a SCADA applic that has to show in a synoptic
image the alarm, and the second one is the service that has to beep.
I write a service because the user has to be notified even the SCADA applic
is stopped. In fact this applic has to run constantly.
Thanks.
"Remy Lebeau (TeamB)" < XXXX@XXXXX.COM >a écrit dans le message de

ControlService() API can be used to send *custom ID* to the
service application from a TForm.
The service can then receive that *custom ID* and perform some
task (beep).
Best Regards,
Vladimir Stefanovic
 

"Juan Diego Garcés" < XXXX@XXXXX.COM >wrote in message
different desktop and workstation then the ones that the user works in.
Window messages cannot be passed between different desktops.
override the TService's DoCustomControl() methof to handle custom messages.
Then have either the broadcasting application notify the service directly,
or else have the receiving application notify the service when itself is
notified.
directly.
Gambit