emit signal from a slot?

[ask8y@yahoo.com]

Is it legal to emit a signal in a slot?

I am trying to emit a signal in a slot, and want to trigger another slot. The intended slot does not seems called. Wondering if it's legal to do that?

Thanks,

[jnadelman]

I have no trouble with it. You may want to be more clear by posting the nw code.

[amoswood]

I have no problem either. This is legal.

[ask8y@yahoo.com]

Well, the connect() returned false. signal/slot signatures match.
rc=connect(p, SIGNAL(status(bool)),
this, SLOT(handStatus(bool)));

[CeeKey]

If it works for you, you can connect the signal with the other signal.

[jnadelman]

1. What is p?
2. Does p have SIGNAL called status?
3. Use CODE rather than QUOTE around your code.

Well, the connect() returned false. signal/slot signatures match.
rc=connect(p, SIGNAL(status(bool)),
this, SLOT(handStatus(bool)));

[ask8y@yahoo.com]

Well, the connect() returned false. signal/slot signatures match.
rc=connect(p, SIGNAL(status(bool)),
this, SLOT(handStatus(bool)));

Well, well, well,
It was the typo, handleStatus instead of handStatus. Nice if it failed at compilation time! It works now.

[wysota]

It can't fail at compilation time because introspection in Qt is done in run-time and not compile-time. Otherwise many of the features Qt offers couldn't be used.

[cptG]

qt spits out warnings about connections containing non-existant slots/signals to the console when the program is executed, so if you're using QtCreator, look at the application output panel, otherwise execute it from a console.
iirc you need to add CONFIG+=console if you're working on windows for that to work.

cheers,
thomas

[tbscope]

Is it legal to emit a signal in a slot?

I am trying to emit a signal in a slot, and want to trigger another slot. The intended slot does not seems called. Wondering if it's legal to do that?

Thanks,

I'm just going to state the obvious here:
Keep an eye on infinite loops. Don't emit a signal that eventually calls the slot again. This way you end in an infinite loop.