Call method in "parent" window from child window.

[Rahul Das]

Well, looks like it is :).. Why dont you give it a try ?

[andre]

Looks like a good start, if you actually created that signal and that slot.

[maxmotor]

Hm - Nothing seems to happen I'm afraid.

I should mention that my slot method is completely empty. I just use it as a trigger.

[andre]

A slot is not a trigger. A signal is (sort of). The slot should actually do something.

[maxmotor]

Oh my mistake. I meant signal. My signal is only a trigger :) Sorry

[andre]

You do know that you are only supposed to give a declaration of a signal, right? No implementation allowed!

So, only do:
@
//MyChildWindow.h
class MyChildWindow: public QDialog
{
Q_OBJECT
/...
signals:
void valueChanged(int);
@

Moc will provide an implementation for you.

[maxmotor]

Thank you!

2 things:

1. I did make an empty implementation. Deleted it.
2. I forgot to declare it a signal in my header file. ("signals:")

I now seems to be working. The variable is not updated properly, but I guess that's due to an error somewhere else.

Thank you so much for your time!

[KA51O]

[quote author="maxmotor" date="1316523853"]I'm not sure if I'm doing this correct?

@Setup_selectMachine *selectMachine = new Setup_selectMachine();
QObject::connect(selectMachine, SIGNAL(valueChanged()), this, SLOT(updateValue()));
selectMachine->show();@[/quote]

You forgot to specify the signal and slot parameters types (int).
@ @Setup_selectMachine *selectMachine = new Setup_selectMachine();
QObject::connect(selectMachine, SIGNAL(valueChanged(int)), this, SLOT(updateValue(int)));
selectMachine->show(); @

[maxmotor]

No I did not - to quote myself:

[quote author="maxmotor" date="1316523853"]I am not sending any values directly via the connection, but instead I'm using a resource class which holds all values.![/quote]

So I don't have to send any parameters with the signal.

[KA51O]

Sry must have missed that part.