A little confused by signals & slots and passing values

Hi All,

I'm trying to get the value of an inputted value off a widget in a *.ui file, how do i do that?

Here's my code:

var ui_root;

function cb_entryBox() {
//How do we get the entry box value?");
}

function ui_setup() {

ui_root = new DzDialog();
var ui_loader = new DzUiLoader();
var widget = ui_loader.load("/some/path/test.ui", ui_root);
var entryBox = widget.findChildOfWidget("lineEdit");

connect(entryBox, "returnPressed()", cb_entryBox);
} 
ui_setup();
ui_root.exec();

Any pointers would be much appreciated (pun intended)