Question

I’m trying get all the button child widgets of a window. The buttons were created through QDialogButtonBox. How do I get the which one is the cancel/ok/save button?

I have:

QWidget *pWin = QApplication::activeWindow();
QList<QPushButton *> allPButtons = pWin->findChildren<QPushButton *>();
QListIterator<QPushButton*> i(allPButtons);
while( i.hasNext() )
{
  //identify which button is cancel/ok/save button here
  /*Note: This is where I'm having trouble, getting the text of the 
    button here returns NULL. Any other way of Identifying which is 
    which?
    Is it a special case when buttons are created through QDialogButtonBox?       
   */
}

Answer 1

You should use the QDialogButtonBox::button() method, to get the button of the corresponding role.

For instance :

QPushButton* pOkButton = pButtonBox->button(QDialogButtonBox::Ok);
QPushButton* pCancelButton = pButtonBox->button(QDialogButtonBox::Cancel);
// and so on...

Generally speaking, I would say it’s a bad idea to find a button from it’s text, as this text might change when you app is internationalized.