how to catch qMouseEvent

Hi, i'm a newbie in QT, and i'm working in a proyect with it. now i need to get a simple MouseEvent but i don't get it.
There is a class called ListaMensajes where QScrollArea is placed. Inside i can load PanelTx objects.
The idea is to select the PanelTx object by clicking over each one.

Code:

---

protected:
	void clickPanelTxEvent(QMouseEvent *e);
 
private:
	Ui::PanelTxClass ui;

---

and the definition ..

Code:

---

PanelTx::PanelTx (CArincMsgData *msg, ListaMensajes &listaMensajes, QWidget *parent)
: QWidget(parent), m_cListaMensajes (listaMensajes), m_pMessage (msg)
{
	ui.setupUi(this);
 
	m_pDialogPropiedades = 0;
 
	loadValues ();
 
	colorPanelTx(m_pMessage->isEnabledTx ()); //poner color activo-desactivo
}
 
PanelTx::~PanelTx()
{
 
}
.............
 
void PanelTx::clickPanelTxEvent(QMouseEvent *e)
{
 
		if (e->button() == Qt::LeftButton)
		{
 
			//this line is just to check it works
	                this->setPalette(QPalette(Qt::white));
 
		}
		else if (e->button() == Qt::RightButton)
		{
			......
		}
}

---

the line:
this->setPalette(QPalette(Qt::white));
works perfectly with this widget cause im using it in other parts, but i can't get the handler work for the QMouseEvents

could anybody help me?
thanks