Is there any way to pass default parameters values to any slot?

[ricardo]

Hi all!

Is there any way to pass default parameters values to any slot?

I read over there something baout adding an "=", but doesn't work
connect(ui.actionZoom_1X, SIGNAL(triggered()), d, SLOT(UpdateCameraZoom(=1.0)));

Any idea?

Thanks in advance.

[jpn]

class Foo
{
public slots:
    void UpdateCameraZoom(qreal level = 1.0);
};
 
void Foo::UpdateCameraZoom(qreal level)
{
   // ...
}
 
connect(ui.actionZoom_1X, SIGNAL(triggered()), d, SLOT(UpdateCameraZoom()));

class Foo
{
public slots:
    void UpdateCameraZoom(qreal level = 1.0);
};

void Foo::UpdateCameraZoom(qreal level)
{
   // ...
}

connect(ui.actionZoom_1X, SIGNAL(triggered()), d, SLOT(UpdateCameraZoom()));

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[ricardo]

Oh my god! I didn't realise I could do that. Works perfectly for me. Thanks

But let's say different default parameters with differente signals calling the same slot. How would you do it?

Thanks.

[jpn]

But let's say different default parameters with differente signals calling the same slot. How would you do it?

You could use for example QSignalMapper, QObject::sender() or QButtonGroup to map/identify the sender.

[Boron]

It should be added that the kind of method declaration jpn presented is a feature of C++ and can be used for all kind of methods in C++. No matter if the method is a Qt slot or just a totally normal method of a simple class.