about signals and slots

Hi,

I am wondering to get the answer of basic question.
I have connected one signal to another signal. The second signal is connected to one slot.
My problem is that the slot is not called at all.

Example,

connect(<object of qaction>, SIGNAL(changed()), <object of my own toolbar>, SIGNAL(<my own signal>));

in other class

connect(<object of my own toolbar>, SIGNAL(<my own signal>), <object of my widget>, SLOT(<slot of my widget>));

Can you help me to figure out my problem? Please let me know how can fix it.

Thanks in advance.

Regards,
Sandip

I think there is object problem .....because which signal you are emiting is not receive by your own slot because it treats as different object ...........
So you have to think in different way to use that object ............;)

Can we see the exact connect() statements?

Yaa, sure!

Here, I have pasted the main code.
If you want it in more details then let me know I will drop the complete code.

In QMyToolbar class file.

Code:

---

QMyToolbar::QMyToolbar(QWidget *)
{
        m_action = addAction(QIcon(tr("image.png")),tr("Start/Stop"));
	connect(m_action, SIGNAL(toggled(bool )), this, SIGNAL(workingToggle(bool)));
 
}

---

In MyWidget class file.

Code:

---

QMyToolbar * MyWidget::m_spClockToolbar = NULL;
 
MyWidget::MyWidget(QWidget *parent)
{
	if(m_spClockToolbar == NULL)
	{
		m_spClockToolbar = new QClockToolBar();
	}
	connect(m_spClockToolbar, SIGNAL(workingToggle(bool)), this, SLOT(startWork(bool )));
 
}

---

m_spClockToolbar is a static member;

Hi wysota,

I got answer in different way.
I changed one line.

Code:

---

m_action = addAction(QIcon(tr("image.png")),tr("Start/Stop"), this, SIGNAL(workingToggle(bool)));

---

But may I know what was the wrong with my previous code.
I look me correct. Please let me know if something is wrong.

Thanks for immediate reply.

Regards,
Sandip

Probably you were using a wrong signal - toggled() .

Try trigerred() instead of toggled() and see if it works :)

toggled() works only for checkable (two-state) actions and yours seems to be a single-state one.

I don't think that this is the reason. Because I tried with

changed signal and my slot which doesn't take any arguments.

it was similar to

Code:

---

connect(m_action, SIGNAL(changed( )), this, SIGNAL(checkslot()));

---

i should have tried with triggered()

is there any special case with changed signal? if yes please let me know so that I can take care of it next time

thanks all of you for helping me.

changed() signal is for something completely different...

Yaa, you are right.

Thanks a lot!

Sorry that was my mistake.

Regards,
Sandip