How to use connect() with a singleton class?

[punkypogo]

Hi,

I made a Qt singleton class:

// decl
class QFoo : QObject
{
  Q_OBJECT
public:
  static QFoo* getInstance( QObject* parent=0 );
  static void destroy();
 
signal:
  void fooSignal();
 
private:
  static QFoo* p_instance;
 
  QFoo( QObject* parent );
  ~QFoo();
};
 
// impl
QFoo* QFoo::p_instance = 0;
 
QFoo* QFoo::getInstance( QObject* parent )
{
  if( !p_instance )
    p_instance = new QFoo( parent );
  return p_instance;
}
 
void QFoo::destroy()
{
  if( p_instance )
    delete p_instance;
}
 
QFoo::QFoo( QObject* parent ) : QObject( parent )
{
}
 
QFoo::~QFoo()
{
}

// decl
class QFoo : QObject
{
  Q_OBJECT
public:
  static QFoo* getInstance( QObject* parent=0 );
  static void destroy();

signal:
  void fooSignal();

private:
  static QFoo* p_instance;

  QFoo( QObject* parent );
  ~QFoo();
};

// impl
QFoo* QFoo::p_instance = 0;

QFoo* QFoo::getInstance( QObject* parent )
{
  if( !p_instance )
    p_instance = new QFoo( parent );
  return p_instance;
}

void QFoo::destroy()
{
  if( p_instance )
    delete p_instance;
}

QFoo::QFoo( QObject* parent ) : QObject( parent )
{
}

QFoo::~QFoo()
{
}

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I want to connect its fooSignal() to a slot:

QFoo* pFoo = QFoo::getInstance();
connect( pFoo, SIGNAL( fooSignal() ), this, SLOT( aSlot() ) );

QFoo* pFoo = QFoo::getInstance();
connect( pFoo, SIGNAL( fooSignal() ), this, SLOT( aSlot() ) );

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My problem is that I get compiler error with the connect:

"error C2243: 'type cast'*: conversion from 'QFoo *' to 'const QObject *' exists, but is not accessible"

Do you have any idea?
Thanks in advance.

[saa7_go]

If you modify:

class QFoo : QObject
{
....
};

class QFoo : QObject
{
....
};

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to

class QFoo : public QObject
{
....
};

class QFoo : public QObject
{
....
};

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Does it work?

[punkypogo]

Oh yes thanks a lot, I guess I'm not completely awoken