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How to use signal slot ?

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Bargi

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  • "Bargi" started this thread

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1

Monday, May 26th 2008, 10:56am

How to use signal slot ?

Hi,

I have a problem.......

I have two classes A and B.

There is a slot function in A add(). I want that when control reaches in add() it automatically called get() function in B without creating object of B in A.

Is this possible through signal and Slot.

If yes then how ??

Thanks

krsmichael

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  • "krsmichael" is male

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Monday, May 26th 2008, 7:17pm

RE: How to use signal slot ?

Quoted from "Bargi"

Hi,

I have a problem.......

I have two classes A and B.

There is a slot function in A add(). I want that when control reaches in add() it automatically called get() function in B without creating object of B in A.

Is this possible through signal and Slot.

If yes then how ??

Thanks
This is the WHOLE point of signals and slots.

In main.cpp

AClass* aClass = new AClass;
BClass* bClass = new BClass;

connect(aClass, SIGNAL(add), bClass, SLOT(get));

aClass does not contain a bClass and bClass does not contain an aClass.

Code_Warrior

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Monday, May 26th 2008, 8:58pm

Quoted from "Bargi"

I want that when control reaches in add() it automatically called get() function in B without creating object of B in A.


I think, you can't use member-function of class without using object of that class. Solution of krsmichael is most easy in use, but you might use C++ key-word "Friend" function.
Det var engang en ridder bold en skjönn prinsesse og et troll.