QtForum.org

Yes, I suspect you can do it by usting emit twice. And I think that your signals will be processed sequentially. But what functionality you need? Maybe there is another simpler solution?

You don't say which version you are using. The situation seems to be slightly different between release 3 and 4.


From the Qt website;

4.3
"When a signal is emitted, the slots connected to it are usually executed immediately, just like a normal function call. When this happens, the signals and slots mechanism is totally independent of any GUI event loop. Execution of the code following the emit statement will occur once all slots have returned. The situation is slightly different when using queued connections; in such a case, the code following the emit keyword will continue immediately, and the slots will be executed later.

If several slots are connected to one signal, the slots will be executed one after the other, in an arbitrary order, when the signal is emitted."

3.3
"When a signal is emitted, the slots connected to it are executed immediately, just like a normal function call. The signal/slot mechanism is totally independent of any GUI event loop. The emit will return when all slots have returned."

I think that if you want to run them in paralel you need to create multithreaded application, and put your connected slots in different threads.