May 2019
Intermediate to advanced
542 pages
13h 37m
English
Content preview from Mastering GUI Programming with Python
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Simple audio playback
Quite often, applications need to playback sounds in response to GUI events, as you might do in a game or just to provide audio feedback for user actions. For this application, QtMultimedia offers the QSoundEffect class. QSoundEffect is limited to playing back uncompressed audio, so it works with Pulse Code Modulation (PCM), Waveform data (WAV) files but not MP3 or OGG files. The trade-off is that it is low-latency and very efficient with resources, so while it's not useful as a general-purpose audio player, it is perfect for fast playback of sound effects.
To demonstrate QSoundEffect, let's build a phone dialer. Copy the application template from Chapter 4, Building Applications with QMainWindow, into a new file called ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.