#include <QtGui>

// ----------------------------------------------------------------------
int main(int argc, char** argv)
{
    QApplication app(argc, argv);
    QWidget      wgt;

    QWidget* pwgt1 = new QWidget(&wgt);
    QPalette pal1;
    pal1.setColor(pwgt1->backgroundRole(), Qt::blue);
    pwgt1->setPalette(pal1);
    pwgt1->resize(100, 100);
    pwgt1->move(25, 25);
    pwgt1->setAutoFillBackground(true);

    QWidget* pwgt2 = new QWidget(&wgt);
    QPalette pal2;
    pal2.setBrush(pwgt2->backgroundRole(), QBrush(QPixmap("D://stone.jpg")));
    pwgt2->setPalette(pal2);
    pwgt2->resize(100, 100);
    pwgt2->move(75, 75);
    pwgt2->setAutoFillBackground(true);

    wgt.resize(200, 200);
    wgt.show();

    return app.exec();
}

#ifdef QT_NO_DEBUG
  //релиз
 #define def_path__ "./"            "file.png"
#else
  //дебаг
 #define def_path__ "../res/"            "file.png"
#endif