Overwrite Qt slot ...

[jiapei100]

Hi, all:

Is it possible to overwrite Qt slot?

For instance:

CFather:

class CFather : public QMainWindow
{
	Q_OBJECT
.....
protected slots:
    void							about();
}
 
void CFather::about()
{
	QMessageBox::information(this, 
		"Father",
		"......");
}

class CFather : public QMainWindow
{
	Q_OBJECT
.....
protected slots:
    void							about();
}

void CFather::about()
{
	QMessageBox::information(this, 
		"Father",
		"......");
}

To copy to clipboard, switch view to plain text mode 

CSon:

class CSon : public CFather
{
	Q_OBJECT
.....
protected slots:
    void							about();
}
 
void CSon::about()
{
	QMessageBox::information(this, 
		"Son",
		"......");
}

class CSon : public CFather
{
	Q_OBJECT
.....
protected slots:
    void							about();
}

void CSon::about()
{
	QMessageBox::information(this, 
		"Son",
		"......");
}

To copy to clipboard, switch view to plain text mode 

I just want to realize:

A CFather object will call CFather::about() when the menu item "about" is invoked.
A CSon object will call CSon::about() when the menu item "about" is invoked.
(Note: CFather and CSon are almost the same QMainWindow with only a little bit modification.
But, I just want the about() will invoke two different dialogs, with clear indication that this is a "Son" or a "Father" window)

I tried "virtual" already, but whenever I clicked "OK" on the poped CSon:about() QMessageBox, it will CSon QMessageBox once again. That is to say, I've got to click "OK" twice to close QMessageBox thoroughly.

How to deal with this problem?

Best Regards
JIA

[franz]

Slots are fundamentally the same as functions. If the slot is declared virtual, you can override it. If it isn't, you can't.