QFrame *myFrame = new QFrame(this); myFrame->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
QFrame *myFrame = new QFrame(this); myFrame->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
QFrame *myFrame = new QFrame(this); myFrame->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding);These examples demonstrate how the setSizePolicy function can be used to control the size of a QFrame object. The function is part of the Qt library and is included in the QtCore and QtGui packages.