//! [0]
imageLabel->resize(imageLabel->pixmap()->size());
//! [0]


//! [1]
if (!imageLabel->pixmap())
     qFatal("ASSERT: "imageLabel->pixmap()" in file ...");
//! [1]


//! [2]
qmake "CONFIG += debug" foo.pro
//! [2]


//! [3]
qmake "CONFIG += release" foo.pro
//! [3]


//! [4]
scrollBar->setValue(int(factor * scrollBar->value()));
//! [4]