QHBoxLayout *layout = new QHBoxLayout(); layout->addWidget(widget1); layout->addWidget(widget2); layout->insertStretch(0, 1);
QHBoxLayout *layout = new QHBoxLayout(); layout->addWidget(widget1); layout->addWidget(widget2); layout->insertStretch(1, 1); layout->insertStretch(3, 1);In this example, we add two widgets to a QHBoxLayout, and then add two stretches at positions 1 and 3. This will force widget1 and widget2 to be spaced out further apart, with the two stretches taking up the empty space between them. These examples demonstrate how the QHBoxLayout insertStretch function can be used to create custom layouts in a Qt application. The function is part of the Qt Core library.