Hi all,

I've read about "New 0.9.26 features. Part 1. SendMessage and PostMessage", and we are using PostMessage from a thread in Lazarus v0.9.27 rev 16990+ on both Mac OS X i386 and PPC, and they all seem to work fine.

However, this might not be the case on some Mac OS X 10.4.11 installations (out of reach client installation), because some functions seem to not being processed which depend on messages.

Before we send out a test program, I like to hear if anyone have had a similar problems with threads and messages on different Mac OS X?

Best regards,
Bent Normann Olsen

Hi,

Just a follow up - I've compiled a small test program with a thread and PostMessage for the client installation, and it's working as it should, so nothing wrong with posting messages.

Back to testing...

beware! if you're going to use Carbon sendevent (sendmessage), than you should keep in mind, that it acts different from Windows thread message.

Win sendmessage blocks the sending thread until recieving threads proccess the messages. Of cause, if thread sends a message to itself (or a window in the same thread) then processing function is called immediatly.

Mac sendevent actually calls event process function, in the calling thread. This might cause any kind of threads errors, if data is not syncronized. -------------- next part --------------
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