Tips for accesing components on forms from code ?

[tonnot]

Is there any QT tutorial explaining how to access componentes from code placed into different classes ?
Thanks

[tbscope]

1. signals and slots
2. access functions
...

Example:

class A : public QObject
{
    Q_OBJECT
 
public:
    A();
    ~A();
 
    int something();
    void setSomething(int something);
 
signals:
    void somethingWasSet(int something);
 
public slots:
    void setSomethingElse(int something);
 
private:
    int theThing;
};
 
class B : public QObject
{
    Q_OBJECT
 
public:
    B();
    ~B();
 
    int something();
    void setSomething(int something);
 
signals:
    void somethingWasSet(int something);
 
public slots:
    void setSomethingElse(int something);
 
private:
    int theThing;
};
 
...
 
A a;
B b;
connect(&a, SIGNAL(somethingWasSet(int)), &b, SLOT(setSomethingElse(int)));
 
...
b.setSomething(a.something());

class A : public QObject
{
    Q_OBJECT

public:
    A();
    ~A();

    int something();
    void setSomething(int something);

signals:
    void somethingWasSet(int something);

public slots:
    void setSomethingElse(int something);

private:
    int theThing;
};

class B : public QObject
{
    Q_OBJECT

public:
    B();
    ~B();

    int something();
    void setSomething(int something);

signals:
    void somethingWasSet(int something);

public slots:
    void setSomethingElse(int something);

private:
    int theThing;
};

...

A a;
B b;
connect(&a, SIGNAL(somethingWasSet(int)), &b, SLOT(setSomethingElse(int)));

...
b.setSomething(a.something());

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