why I can't change the color of progressbar ?

hello

why I can't change the color of progressbar ?

Code:

---

QPalette pal;
    QList<QProgressBar *> pblist = parent->findChildren<QProgressBar *>();
    if(!pblist.isEmpty()){
        foreach(QProgressBar* ouptr, pblist){
            pal = ouptr->palette();
            pal.setColor(QPalette::Highlight, Qt::red);
            ouptr->setPalette(pal);
            ouptr->setValue(50);
        }
    }

---

Don't know. Your code works perfect on my computer (Linux). You can try style sheets. Why palette is not working on your side could be, that you overwrite it later again? Try a minimal example on your side:

Code:

---

#include <QtCore>
#include <QtGui>
 
int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    QProgressBar pb;
    QPalette pal = pb.palette();
    pal.setColor(QPalette::Highlight, Qt::green);
    pb.setPalette(pal);
    pb.setValue(50);
    pb.show();
    return app.exec();
}

---

its default value is green. change Qt::green to Qt::red and test again.

I tested it on WinXP SP2

Quote:

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Originally Posted by navid

its default value is green. change Qt::green to Qt::red and test again.

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I had tested it with different colours and it worked perfect.

Quote:

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Originally Posted by navid

I tested it on WinXP SP2

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Did you test that minimal example or only in your application? Have you looked at the task tracker if someone posted that issue already?

no,

I even used pb.repaint();
but, it is always green.

WinXP SP2, Qt4.6.2 (2010.02.1)

I guess it has to do with XP style.
Try running your application with different style and see if it works. You simply need to pass "-style <styleName>" to your app.
eg : "app.exe -style motifstyle" [Check the style names for spelling]
Also stylesheets must work on XP. I had used once..

Quote:

---

Originally Posted by Lykurg

Don't know. Your code works perfect on my computer (Linux). You can try style sheets. Why palette is not working on your side could be, that you overwrite it later again? Try a minimal example on your side:

Code:

---

#include <QtCore>
#include <QtGui>
 
int main(int argc, char **argv)
{
    QApplication app(argc, argv);
    QProgressBar pb;
    QPalette pal = pb.palette();
    pal.setColor(QPalette::Highlight, Qt::green);
    pb.setPalette(pal);
    pb.setValue(50);
    pb.show();
    return app.exec();
}

---

---

for me also this code is not working ... i am running qt 4.6 with linux but after aamers suggestion of changing the style its working neatly ... color is changing properly ..

but still i am in dark ... what might be the problem ..

yes

under motifstyle, it run accurately. where is the problem?