QLabel label("Hello World!"); QSize size = label.sizeHint();
QLabel label("Hello World!"); label.setFixedSize(label.sizeHint());This example creates a QLabel with the text "Hello World!", sets its fixed size to its suggested size using the sizeHint function. Package Library: The QLabel sizeHint function is part of the Qt library, which is a cross-platform application development framework.