Wt

The simplechat gives an example of server push (where data is pushed from one client to others). Perhaps you are looking for the scenario where data is pushed from (calculations performed by) another thread ?

Thank you!

I have seen the simplechat example. The WTextArea give an enter pressed signal,and make the server push process works.

As you said, When data changed in another thread, can the changed data be a signal to make the server push works?

From another thread you can grab the update lock, make the widget changes you want, and push them.

See also the following small (quite nonsensical) example attached.

Thank you very much for your example!

The follow picture file is what i want to do "Server Push".

I down not how to emit an signal from one thread to another.

Can you give a suggestion?

Thank you very much!

I suggest you take a look here then.
I wrote this article.
http://redmine.webtoolkit.eu/wiki/wt/SimpleChat_made_easy

A feature example was added for serverpush