#include#include // Create a vertical layout QVBoxLayout* layout = new QVBoxLayout(); // Create a push button and add it to the layout QPushButton* button = new QPushButton("Click me"); layout->addWidget(button); // Add spacing of 10 pixels before the button layout->addSpacing(10);
#includeThis code creates a QVBoxLayout and adds a QLabel to it. Then it adds 20 pixels of spacing after the label using the addSpacing method. Both examples use the QtCore and QtGui packages from the Qt library.#include // Create a vertical layout QVBoxLayout* layout = new QVBoxLayout(); // Create a label and add it to the layout QLabel* label = new QLabel("Hello world!"); layout->addWidget(label); // Add spacing of 20 pixels after the label layout->addSpacing(20);