You could go a bit another way:

use

There you can also post parameters

The connection is using pointers to the same instance, isn’t it?
I assume that you are using the same object through pointers in different threads. Then this might be possible. However, the signal-slot mimic will more or less generate a direct function call which will be executed in the thread you are emitting the signal. I do not see a way to tell the thread that it has to execute the function in another thread.
I guess you need to separate the different tasks in two objects. Otherwise it will not function.

You can also use the connection type in your connect statement, if you need.

It depends on what you want to do in response to those signals though. You can not trigger anything that modifies the GUI from another tread than the GUI thread. That can only be done using queued connections, never with direct method calls or direct connections (amount to pretty much the same thing).

Gerolf wrote:

You could go a bit another way:

use

1.     QMetaObject::invokeMethod(this, "foo", Qt::QueuedConnection);

There you can also post parameters

1.     QMetaObject::invokeMethod(this, "foo", Qt::BlockingQueuedConnection, Q_ARG(<param type>, param));

That is working, thank you.

Using the typed connect also works with emit signal then:

Gerolf wrote:

Using the typed connect also works with emit signal then:

@
“connect(this, SIGNAL, this SLOT, Qt::QueuedConnection);”
@

I tried that before and had no success

If you then emit inside your class, it did not work? strange… should do logically the same as QMetaObject::invokeMethod

Gerolf wrote:

If you then emit inside your class, it did not work? strange… should do logically the same as QMetaObject::invokeMethod

That was the first thing i tried, from what i read i thought it should work. But the code never reached the slot function

bazz-dee wrote:

Gerolf wrote:

If you then emit inside your class, it did not work? strange… should do logically the same as QMetaObject::invokeMethod

That was the first thing i tried, from what i read i thought it should work. But the code never reached the slot function

perhaps, the code was wrong? Did you add the parameter types inmj signals and also the brackets? param,eter trypes in the slot ?

i had the parameters in both

only the types, or also the parameter names?

only the types. i still have it running with signals/slots where the signals are emitted from the GUI thread