Naming Things
In general, a title command considers everything that follows it until the first line break as its argument. If the title is so long it must span multiple lines, end each line (except the last one) with a backslash.
Commands
\title
The \title command sets the title for a documentation page, or allows you to override it.
/*! \page signalandslots.html \title Signals & Slots Signals and slots are used for communication between objects. The signals and slots mechanism is a central feature of Qt, and probably the part that differs most from the features provided by other frameworks. ... */
See also \subtitle.
\subtitle
The \subtitle command sets a subtitle for a documentation page.
/*! \page qtopiacore-overview.html \title Qtopia Core \subtitle Qt for Embedded Linux Qt/Embedded, the embedded Linux port of Qt, is a complete and self-contained C++ GUI and platform development tool for Linux-based embedded development. ... */
See also \title.