showing icons - setPixmap problem

[Tomasz]

Hello!

I've got problem with showing icons. I've read code from program where icons were used (on buttons or just somewhere on window). I've wrote code (based on that program):

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
 
    logoLabel = new QLabel(this);
    logoLabel->setPixmap(QPixmap(":/images/icon1.png"));
    ui->layout->addWidget(logoLabel);
 
    button = new QPushButton;
    button->setIcon(QIcon(":/images/icon2.png"));
    button->setIconSize(QSize(48, 48));
    button->setFixedSize(150, 60);
    ui->layout->addWidget(button);
}

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    logoLabel = new QLabel(this);
    logoLabel->setPixmap(QPixmap(":/images/icon1.png"));
    ui->layout->addWidget(logoLabel);

    button = new QPushButton;
    button->setIcon(QIcon(":/images/icon2.png"));
    button->setIconSize(QSize(48, 48));
    button->setFixedSize(150, 60);
    ui->layout->addWidget(button);
}

To copy to clipboard, switch view to plain text mode 

but nothing shows. No icons (button is 'empty'). Images are in directory images/ where my source code is. What I'm doing wrong?

thanks in advance
best regards
Tomasz