January 2004
Intermediate to advanced
464 pages
9h 59m
English
Content preview from C++ GUI Programming with Qt 3Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 10. Input/Output
This chapter covers reading and writing files, traversing the file system, and interacting with external programs.
Qt’s QDataStream and QTextStream classes make it simple to read and write files. These classes take care of issues such as byte ordering and text encodings, ensuring that Qt applications running on different platforms can read and write each other’s files.
Many applications need to traverse directories or get information about a file. Qt’s QDir and QFileInfo classes makes this possible.
In some situations, it is necessary to run external programs from within a GUI program. Qt’s QProcess class allows ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.