QPushButton* button = new QPushButton(); QColor color; color.setHsv(0, 255, 255); // Set color to red button->setStyleSheet("background-color: " + color.name());
QLineEdit* lineEdit = new QLineEdit(); for (int i = 0; i < 256; i++) { QColor color; color.setHsv(i, 255, 255); // Change the hue incrementally QPalette p; p.setColor(QPalette::Base, color); lineEdit->setPalette(p); QCoreApplication::processEvents(); }In this example, we use setHsv to gradually change the hue of the color of a QLineEdit, creating a gradient effect. We accomplish this by iterating through the hue values from 0 to 255 and applying them to the color using setHsv in each iteration. Overall, QColor setHsv is a useful function in the Qt library for developers who wish to set the color of an object using HSV values. This function is part of Qt GUI module library.