[Qt-interest] qlineedit setText crash

[Tony Rietwyk]

Have you debugged this? 
 
What did you find so far? 
 
Are the pointers unmodified? 
 
Do the objects still exist? 
 
 

-----Original Message-----
From: qt-interest-bounces at trolltech.com
[mailto:qt-interest-bounces at trolltech.com] On Behalf Of caius ligarius
Sent: Tuesday, 18 May 2010 07:06
To: qt-interest at trolltech.com
Subject: [Qt-interest] qlineedit setText crash


Hi,

I have added a QLineEdit widget to QMainWindow. I want to update the text in
QLineEdit widget everytime a certain function gets called.
(updatePixelValue). When I try to do setText in that function the code
crashes. See code below-

void Viewer:: updatePixelValue(QPointF p)
{
    int x = p.x();
    int y = p.y();
    QString s;
    s.sprintf("x=%d y=%d",x,y);
    ui.lineEdit->setText(s);
}

Viewer: is QMainWindow
ui: is created using Qt Designer
updatePixelValue(QPointF p): x,y values here are correctly being set to some
integer numbers from "p"

The above code crashes at the last line (setText)??


Thanks,
Caius




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