2 First Application in Qt6 with C++ | "Hello World" Tutorial for Beginners скачать в хорошем качестве

2 First Application in Qt6 with C++ | "Hello World" Tutorial for Beginners

In this tutorial, learn how to create your very first application using Qt6 and C++. This step-by-step guide will walk you through setting up a basic "Hello World" GUI application in Qt6, covering the essentials of both the Qt Creator IDE and basic C++ programming. Perfect for beginners who are new to Qt framework or looking to get started with cross-platform development. In this video, you will learn: How to set up a Qt6 project Writing a simple C++ program in Qt6 Creating a basic "Hello World" GUI window Compiling and running your first Qt6 application Here it is, that glorious moment where you begin programming, if you've never done this before, this as well, a right of passage, we're going to create what's called Hello World. And it's the starting point of almost every programming language. I'm going to go through this super slow just because I'm going to assume this is your first time doing this before you. We have cute creator installed and ready to go. We've already created some very blank, cute and C++ apps just to run them and make sure everything works as expected. If you skip those steps and you hit any issues, rewind and watch the previous videos. OK, so first things first, we're going to create a new project, and we've done this before, you can either go to file now or you can just click this new button on the welcome tab, then click. Now, make sure you're in application cute and go to cute console application. Put it in whatever folder you want and give it a name. So this is Cute six for beginners. This is lesion than 3 1. Feel free to name is whatever you want, but I'm going to use a standard naming convention that lines up with the video. Build system gets a little bit confusing. Other videos and a lot of my historical videos, you see me use Q MAKE. We're going to C make you may be wondering what the difference is and we're going to cover this in later videos, but Q MAKE is cute's proprietary build system. And in cute six, they're moving away from that to C MAKE they're still going to have and support QMAKE, but they're no longer going to continue to develop it. So in future versions of cute, this will start to phase out and eventually go away as they favor C MAKE. But you can use whatever build system you want. We're going to use C MAKE. We don't need a translation file because all of these videos will be in English. And then kit selection, you may see other things, but really what you want is desktop cute six doesn't matter if it's six one or six point five or whatever versions out there now. And just ignore this last little bit where it is GCC 64 bit. This tells you the compiler, along with the bit level we're compiling. most modern compilers should be 64 bit. It next and project management, we're not going to use any source code control, but if you wanted to, you could definitely set it up and use it here. and finish. The IDE is going to do a lot of passing, you see those green boxes that popped up here, if you had a red one, that means something bad happened and you need to figure out what it is. That's where Google really becomes your friend. So overall project structure, you have your project and you can collapse us down because it's bold. It is the default project. And when we run this, it will run . if we go ahead and run it now. Absolutely nothing's going to happen, I mean, it'll show it on the screen, but it doesn't look like it's doing anything in the background, it's actually running. It's just running in what's called an application loop, meaning it's sitting there waiting for instructions. So I'm going to control us on the keyboard or you can go down and, well, do it. Save all. Let's run it again. Now, notice, there is no Pop-Up window, it's just running right here in the IDE doesn't really matter which way you do it, just make sure you understand the difference between the two. I'm going to hit stop. Now, I'm not sure if you noticed, but there's this little guy over here, and if I run this again, it's a green arrow with the bug. It's the same guy here. It's the debug mode. We showed this in a previous video where basically debug is going to go through the application line by line. And when I say line by line, I mean the actual computer code in the background, it's going to line it up to the instructions on the screen. Very slow way of doing it. And it's a little bit more advanced than what we're going to cover. So just as a de facto, I'm going to run these in a terminal so we see that nice actual screen pop up. So let's pick this program apart. We've got our project name, we have the C MAKE list and let's crack this open. This is the C make file. What this does is really tell C MAKE. how to build the application.