Connecting signal to an arbitrary function in Qt

sarahjohn

hi,
am i able to connect a signal to a function which is in some other namespace and also not inside a particular class.

SGaist

Hi and welcome to devnet,

With Qt 4: no
With Qt 5: it depends, take a look at "this":http://qt-project.org/wiki/New_Signal_Slot_Syntax

Hope it helps

sarahjohn

thank u for the reply.i have 1 more doubt can i simply call a function in some other namespace in qt 4.8 , when i tried i got errors with the emit function in a header file??

SGaist

Signals and slots must be members of a QObject

sarahjohn

I am not trying to connect function to a slot.I am just trying to call a function in Qt4.8 which in some other namespace. Do i need to mention something in .pro file for that ?

SGaist

Can you show your code ? And the error you are getting ? It will be easier to help you then.

SGaist

Have a look at "this":http://qt-project.org/doc/qt-4.8/signalsandslots.html#using-qt-with-3rd-party-signals-and-slots .

The library uses at least one same keyword as Qt, so this is how to make them play together

sarahjohn

Thank u for the answer.

SGaist

You're welcome !

If this solves your problem don't forget to update the thread's title prepending [solved] to it :)