Finding which widget has triggered a slot

[ouekah]

Hi,

if I connect two QAbstractButton::clicked(bool) signals to a slot buttonsClicked(bool), is there a way to determine which button was clicked ?

[Lesiok]

QObject::sender() (http://doc.trolltech.com/4.6/qobject.html#sender)

[aamer4yu]

and then you will need to cast it to the type you want..
like in the slot :
QPushButton *pSender = qobject_cast<QPushButton *>(sender());

[Lykurg]

See also QSignalMapper!

[squidge]

With QSignalMapper being much more OO than ugly type casting of sender()

The result can also be used in switch/case statements, as the return value is constant, so can make for more readable, more optimisable code.