Cross thread communication in Delphi

Question

Is there any documentation on cross thread communication in Delphi? How can I send message to the thread that doesn\'t have a window?

Answer 1

If you have a reference to the thread object, you can just call it direct, and have the procedure store information or update accordingly. Obviously you have to be careful to do things in a thread safe manner.

Alternatively, you could use a central control object through which the threads communicate when they aren't busy. I have an app where threads have particular purposes, and are allocated a thread-ID. Any thread can "post" a message with a message-ID and a string for parameters to another thread-ID and then get on with its work. The other thread the picks it up at its leisure, and acts accordingly.