February 2019
Beginner
136 pages
3h 7m
English
Content preview from Getting Started with Qt 5
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Working with Signals and Slots
Thus far, we have learned how to create applications and display various kinds of widgets. If that were all that GUI applications were made of, that would be the end of the matter. But there is more that we need to do in order to make our applications usable. In this chapter, we will set about the following:
- Understanding the concept behind signals and slots
- Learning the different ways to connect signals and slots
GUI toolkits usually provide a means to react to things that occur within an application. Nothing is left to chance. Every tick that happens within the application is registered and taken note of. For example, when you move a window or resize it, the action gets registered, and provided ample code ...
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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.