What is the purpose of the QSlider class in PyQt5?

The QSlider class is used to create a draggable slider control where users can select a value or range by dragging the slider. It is commonly used for setting parameter values or adjusting progress. Properties such as minimum value, maximum value, current value, and step size can be set, and user interactions can be responded to using signals and slots mechanisms. In PyQt5, the QSlider class is a frequently used control class in the Qt Widgets module.