#includeQFrame* frame = new QFrame(); frame->setContentsMargins(10, 10, 10, 10); // Sets the content margins to 10px on all sides
#includeIn this example, a new QFrame object is created and a new QVBoxLayout layout is created and set as the layout for the frame. The `setContentsMargins` method is then used to set the content margins of the layout to 0 pixels on all sides. This will ensure that the widgets within the frame are aligned with the edges of the frame. Package/Library: Qt Core and Qt Widgets libraries.QFrame* frame = new QFrame(); frame->setLayout(new QVBoxLayout()); frame->layout()->setContentsMargins(0, 0, 0, 0); // Sets the content margins of the layout to 0px on all sides