Game Programming using Qt 5 Beginner's Guide - Second Edition

Files and devices

The most basic and low-level mechanism that is used to access data is to save and load it from the files. While you can use the classic file access approaches provided by C and C++, such as stdio or iostream, Qt provides its own file abstraction that hides platform-dependent details and provides a clean API that works across all platforms in a uniform manner.

The two basic classes that you will work with when using files are QDir and QFile. The former represents the contents of a directory, lets you traverse filesystems, creates and remove directories, and finally, accesses all files in a particular directory.