How can I avoid drawing the focus rect on my buttons?

---

Answer:

In order to not draw the focus rect of the buttons it is necessary to subclass the style and reimplement drawControl() to strip out the State_HasFocus flag for the buttons.

See the documentation:

http://doc.trolltech.com/4.3/qstyle.html#drawControl

See the following example:

#include <QApplication>
#include <QtGui>

class Style : public QWindowsStyle
{
public:
        Style()
        {
        }
        
        void drawControl ( ControlElement element, const QStyleOption * option,
               QPainter * painter, const QWidget * widget = 0 ) const
        {
               if(element == CE_PushButton) {
                      const QStyleOptionButton *b = qstyleoption_cast<const QStyleOptionButton *>(option);
                      QStyleOptionButton *btn = (QStyleOptionButton *)b;
                      if (btn) {
                              if (btn->state & State_HasFocus) {
                                                  btn->state = btn->state ^ State_HasFocus;
                                           }
                      }
                      QWindowsStyle::drawControl(element, btn, painter, widget);
                      
               } else {
                      QWindowsStyle::drawControl(element, option, painter, widget);
               }
        }
        
};
int main(int argc, char **argv)
{
        QApplication app(argc, argv);
        
        QWidget box;
        QPushButton *button1 = new QPushButton(&box);
        button1->setText("Number one");
        
        QPushButton *button2 = new QPushButton(&box);
        button2->setText("Number two");
        
        button1->setStyle(new Style());
        button2->setStyle(new Style());
        
        QVBoxLayout *layout = new QVBoxLayout(&box);
        layout->addWidget(button1);
        layout->addWidget(button2);
        
        box.show();
        return app.exec();
}