'memory leak' threads on QT centre

[locus]

I have read all the threads, but none seem to answer, specifically, the questions i have, so i decided to ask them here:


Am i leaking memory by writing my code as follows:

class QDataWidgetMapper ;
class QSqlTableModel;
class QHeaderView ;
 
class SomeClass : public QDialog, public Ui_SomeForm
{
    Q_OBJECT
 
.......
 
 
 
private:
  QDataWidgetMapper *mapper;
	QSqlTableModel *model;
	QHeaderView *header;
....
};

class QDataWidgetMapper ;
class QSqlTableModel;
class QHeaderView ;

class SomeClass : public QDialog, public Ui_SomeForm
{
    Q_OBJECT

.......



private:
  QDataWidgetMapper *mapper;
	QSqlTableModel *model;
	QHeaderView *header;
....
};

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and in my constructor of SomeClass the pointers are all initialized as follows:

SomeClass::SomeClass(QWidget *parent )
		: QDialog(parent)
{
  setupUi(this);
 
......
 
 
model = new QSqlTableModel(this);
header = new QHeaderView(Qt::Horizontal,this);
mapper = new QDataWidgetMapper(this);
 
.....
}

SomeClass::SomeClass(QWidget *parent )
		: QDialog(parent)
{
  setupUi(this);

......
        

model = new QSqlTableModel(this);
header = new QHeaderView(Qt::Horizontal,this);
mapper = new QDataWidgetMapper(this);

.....
}

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I do not call delete on any of these pointers. Am i doing something wrong here? Oh and i never get errors on memory leaks, i am just really trying to make sure i am not creating any.

Also, where would you recommend that i call delete?

I am using MSVS .NET 2003, with the QT-VS integration;

if i do have memory leaks, could you direct me to some fast and accurate debug application that i can run in .NET, that will help me to identify them?

also, if memory leaks occur while my programs run, is it a FACT that after the program closes the memory is returned to the operating system?

thanks in advance for your attention, your time is valuable and it is appreciated.

[jacek]

Every QObject that has a parent will be deleted when its parent gets destroyed.