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Welcome back.

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In the last video, I installed CodeLite on Windows

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and I created a shortcut icon on my desktop right here.

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So if I double click that, that's going to open up and run CodeLite.

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And the first time you run it, you're going to get a setup wizard.

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It's going to look something like this, it says welcome to the setup wizard,

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you can bypass the setup wizard but let's run it.

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And we'll select Next

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and we'll select C++ development,

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select next again.

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Now, in this step,

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you can scan for compilers.

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And the idea here is we've got a compiler installed on our system.

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CodeLite needs to configure itself to work with that compiler.

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So, we'll select Scan.

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Most of the time it will not find it

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and in this case,

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it did not find, it okay, just like expected.

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Do you want to install one?

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It thinks we don't have one yet, so don't install anything,

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just close this up and we'll manually configure it in a moment.

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Don't worry about what shows here,

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I've got the Microsoft C++ compiler installed as well along with the

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new C++ compiler.

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So, most likely, you're only going to see rust so just click Next.

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Here we select the colors that we want for our interface.

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Normally, I will work in dark.

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I'm just going to select System Default because I think that the light

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actually I'm going to select light because I think that the light

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shows up a lot better on video than the dark, so I'm going to select next.

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I'll just press Finish now, don't change any of these settings

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and CodeLight is going to close up and restart

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and that's it.

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So let me make this a little bigger and show you what's going on here.

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We've got our menu at the top and over here on the left we've got a workspace view.

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In the workspace view is where we see our workspace and our workspace

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can consists of many projects

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which is really great because we can have

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 a workspace, for example, for section six

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 and have all the projects related to section six in here.

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Or you can have a workspace named anything you want, maybe you're learning about

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pointers and you want to create a workspace called pointers

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and then having projects within that workspace all about pointers.

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Once you have workspaces, they'll be available down here.

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Recently open Workspaces, obviously I've just installed this so I've got nothing in here.

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So that's a real easy way to pick previously used workspaces.

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And then you see this right over here where it says

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open an existing workspace, create a new workspace

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 and so forth and we'll be using those in just a moment.

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But before we do anything, we need to set up

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and configure our compiler, so let's do that.

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I'm going to go up here to Settings and then I'm going to press Build Settings

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and there you can see those three items that we saw a little while ago during our build.

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Now at this point, I want to click that blue plus symbol right here.

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On some versions, I think it's the Linux version of the Mac version,

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that's a green plus, but in this case, it's a blue plus.

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So, I'm going to make sure, I'm on that compilers tab right up here

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and I'm going to click that plus it says add an existing compiler,

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so I'm going to click it.

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Now, I'm going to go to where I installed my compiler

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and I installed it on my C drive

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in the mingw folder, right there,

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 and I want to select the bin, that's the path that I want.

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That's where all my binaries are, the executable files for the compiler

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and I'm going to select folder.

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At this point, it's asking us to name the compiler.

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I'm going to name it MinGW, just like that.

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I encourage you to do the same, select OK.

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And now, CodeLite has set up the compiler, you can see it,

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set up the compiler path, the assembler paths and all this good stuff.

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And a good sanity check is to look through here

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and make sure that you've got MinGW 64 bin because that's where all this stuff is.

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And once we're done with that, we can click OK, great.

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Now, we're in a position where we can start writing code,

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creating workspaces, creating projects and so forth,

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so let's screw through those steps.

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There's still a little bit more configuration, but not a lot more.

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So, what we can do here?

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Is we don't have any workspaces yet,

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so we can create a new workspace.

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I can click over here on this big button over here on the right,

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or I can go up to workspace, new workspace,

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and I think you can even do a file, New Workspace,

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yes, right there.

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So, there's a lot of different ways to do it.

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I'm just going to click on this big button because it's pretty easy.

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Now, it's asking us what type of workspace do we want?

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We want a C++ workspace,

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so make sure you select C++, click OK.

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So now, it's asking us where do you want to store this workspace?

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So here, you've got a lot of choices.

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You can store this wherever you like, sort of,

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 do not install this on cloud drives,

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do not install workspaces on folders with really weird names.

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And the other thing I would recommend is not to install it on your desktop or your documents.

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I used to do that all the time and it worked great,

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but more and more we have systems that are using OneDrive

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and OneDrive is managing the desktop

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and the documents folders and it's putting them somewhere else where they

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normally aren't.

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So what I would recommend is that we go right in here

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right in our users and whatever your username is, my name is Mitro

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in this example, that's going to be your own username.

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What I encourage you to do?

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Is just click those three little buttons here.

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And right now, I'm in the home folder,

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and right in here, I want to create a new folder

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and I'm just going to call this Workspaces.

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Just like that, and I'm going to select that.

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So, my workspace path is my

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home directory, my user's username folder,

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and I want to create a new workspace, so let's call this workspace one.

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We can call it, whatever we want.We can call it, you know,

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this week's workspace, whatever you like.

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Now, what something that's very important?

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Do not put spaces anywhere.

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Do not use special characters, just keep it really, really simple.

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No international characters, no spaces, no special characters,

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just keep it plain and simple,

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these build tools are really, really picky about that, so that's my workspace.

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Make sure that create the workspace under a separate directory is checked

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 and click OK.

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Now, you can see over here on the left that we've got a new workspace that's been created.

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And that's great, that's exactly what we want.

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But we need projects within that workspace.

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And the projects themselves are each going to be a C++ program.

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So how do you think we create a project?

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Really easy.

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Click on your workspace, you can come up to file, new project.

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Or we can right click on the workspace

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 and create a new project, that's what I'm going to do.

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Now, we're going to get a new project wizard.

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Notice the path is the workspace one that we created.

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Now it's asking us what's the name of your project?

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I'm just going to call it Project One.

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Remember, we can have as many projects as we'd like within that workspace.

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Make sure create the project in its own folder is checked.

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And now, these are really important settings here, what's the category?

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We want to build a console-based application.

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That's an application that runs in a console window, a command prompt window.

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We're not doing graphical user interfaces, that would be a whole different course.

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The type

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is going to be simple executable G++.

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Now it's asking us, what compiler did we install?

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Well, we installed the MinGW compiler, that's the one that we installed a minute ago and named it,

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so I'm going to select that.

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For debugger, you can choose the GNU gdb debugger.

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And now for the build system.

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This is where the developer that created CodeLite,

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really changed things up in 17.3.

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For years there has been a default build system in here that worked great,

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he got rid of the default build system, I don't know why, but he did.

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So, we have to work without that now.

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And what we're going to choose is?

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CodeLite make file generator.

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Let me click those again and it should just be there when you start but just to be sure.

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You've got a couple of options here,

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 CodeLite make file generator is what we want.

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So that's the one I'm going to choose and I'm going to click OK.

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Now, we've got a project over here, it's got a source folder.

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That's where we're going to put our source code.

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And it's got a main.cpp file.

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The main.cpp file is RC++ source code

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and the name of the file is main.cpp.

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So, let me double click that and that's going to open it up here

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in my editor.

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This is where I can change my program, add code and so forth.

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I'm going to go to my settings for a minute

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and I'm going to go to my colors and fonts and I'm just going to make this

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font a little bit bigger, just so it's easier for you all to see.

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You don't have to do this,

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but I think it's going to make a big difference here, there we go.

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So now, what we're going to do is?

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We're just going to get rid of all this, because that's really c like code.

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Now you'll notice what happened?

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When I got rid of that, you'll notice that red dot that came right up here.

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That means that whatever changes I've made to this file, I have not saved.

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So we can save what we've done by just going to file, save file or control S

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on Windows.

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It's really important that we always save before we try to build and run anything.

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So in this case, let's start writing a real simple Hello World program.

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First thing we're going to do is pound include

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and we're going to say io stream

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inside angle brackets.

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Then I'm going to type using namespace

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std followed by a semicolon.

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At this point, just type along and follow along,

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all this is going to be explained in the course.

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And now, we need to write a main function.

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This is the place where our program is going to begin executing,

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so we're going to type in int space, main,

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left paren, right paren,

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then we're going to have a left curly brace.

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And you'll notice when I pressed enter CodeLite automatically closed that for me.

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So it's using those smart braces, which is really, really handy.

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And in here, all we're going to say is c out,

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two less than signs or left angle brackets

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side by side with no space between them.

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Make sure there is a space between c out and those angle brackets.

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Then again, another space.

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And then, I'm going to type Hello World

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 in double quotes, just like that.

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Then I'm going to follow that with two more

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 left angle brackets or two less than signs,

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followed by the word endl,

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not end1, but endl.

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Now, you'll notice as I was typing,

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 CodeLite was helping me, it's got code completion.

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So it's helping me and I'm just going to indent this so it all lines up nicely.

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It's trying to figure out, what I want to type next

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and helping me out so I could just press tab and I don't have to type it all in.

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So in this case, we have one more statement to write, it's going to be return.

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And you can see, when I type ret, it's giving me the return.

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So I could just press tab and it'll finish it for me, return zero,

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with a space between the return of the zero and a semicolon.

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That's it.

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This is our first program.

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Why do we write a Hello World program?

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Well, it's become the norm and the reason we do it is,

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 if we see Hello World display when we run this,

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we know that our development environment has been set up correctly

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 and it's a pretty easy way to do it. Now you'll notice I am still red here.

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So, I want to press CTRL S or file save.

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I'm going to press CTRL S and that has now changed to that little X there.

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Now you'll notice these red arrows popping up.

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Don't worry about those, those will go away in a second when we do the build.

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But before we do the build, we need to configure our compiler.

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So, what we can do is?

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Remember, it's possible that we have a lot of projects in here.

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There's only going to be one active project at a time and that's the one that's

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bold and italicized, and there's only one right now but you can see it right here.

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You can always right click on that and make it active.

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And by double clicking on it, you can choose which project you want to build.

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Again, we can have 20, 30 projects,

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we just double click them, that's the one we want.

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So let's configure this project.

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So make sure that you've selected Project One.

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Then I'm going to come up to this wrench icon right here

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that gives us our project settings.

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You can also right click

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and come down to settings, you can see the wrench icon there.

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So again, I'm going to just click that icon.

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And now, we get this project settings menu.

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I know this looks like a lot to do right now

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and it is in a sense but in a while, we won't have

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to do any of this because we're going to create a template project

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that we can create new projects from and I'll do that in a couple of videos from now

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which makes it really easy to do.

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So, what do we have here?

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These are some of the options that I selected in that new Project wizard.

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There's the CodeLite Make File Generator, the MinGW.

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So what we want to do here is?

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We want to make one change to this.

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We want to delete

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the working directory right here,

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the whole thing, I just want to delete it all

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and I want to type in dollar and then

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 left parent, Project

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Path right parent, just like that.

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So, you should have a dollar sign, a left paren,

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 Project Path and a right closing parenthesis.

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Make sure that the two P's in Project Path are capitalized.

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That's it.

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We press tab and you can see it light up like that, I'm going to apply

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 and I'm going to select OK.

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Okay now that basically set up our environment.

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Now what we want to do is?

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We want to set up the compiler option.

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So again, I didn't have to leave that one with okay, but you could just open it again.

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And now, we're going to select the compiler right up here

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and you can see I've got a C++ compiler and a C compiler,

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we're only working with a C++ compiler, so I want to set some options for that.

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You can see there's already a few options set here,

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gdwarf and a capital O and a wall and I'll let explain

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as the course goes on.

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So click here

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and you'll see these three little dots that pop up right here in a button.

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So we're going to select that and now,

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we've got a whole bunch of options that we can select from.

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We're only going to select one more and that's that one right here.

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Enable C++ 17 features,

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there's two of them, but make sure you select the one that says dash

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std equals C++ 17.

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And you can see down here in the command line,

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those are the commands that are going to be used by the compiler to build the program.

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Now, I'm going to select OK, apply, OK, now we're done.

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Now what we can do is?

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We can build and run this program.

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So how do we do that?

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Make sure that your project, you want to run is the active project.

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Again, in this case, there's only one project we can come up to build,

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we can do a build.

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There's a lot of options here that I'll explain as we go.

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But we can select rebuild project

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and we get the output window come up down here, let me just move this up a little bit.

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This is the build output right here

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and you can see that it successfully has created a program

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which is pretty cool.

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Now, what we can do is?
We can run this program.

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So, let me close that and I'm going to select

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Build run

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it's going to ask me, you want to build it and execute it or just execute it?

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I just want to execute it because I've already built it.

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A window pops up and it says Hello World.

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This tells you that your build environment is set up,

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your compiler is set up, everything's working, everything looks good.

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Now, all we displayed was Hello World.

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The rest of this stuff is displayed by CodeLite.

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It tells you that your program exited with an exit code of zero, that is a good thing.

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An exit code of zero means that your program ran successfully.

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That's basically what we're returning that zero right here for.

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And again, we'll explain all this as we go. Right now, we're just trying to get the environment set up.

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We're displaying Hello World, we're returning that zero,

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 everything worked, there was no other error.

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How much time did the program take to run?

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There you see it, and then it says press any key to continue and if I press Enter,

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the window goes away.

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So that's it. We've built our first program, it was pretty easy I think.

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It's just a matter of setting these little steps up,

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 so let me create another project

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and I'm going to use this same source code.

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And I'm just going to copy that so I don't have to type it in again, I'm just using CTRL C.

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And I can close this window down here just to reduce some of the clutter.

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So what do I want to do now?

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Well, I want to click on the workspace, right click, New project.

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And my project name is Project Two.

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I'm going to remember the life setting, so it's a console-based program.

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It's simple, executable MinGW,

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the GNU debugger and CodeLite make file generator.

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I'll select OK.

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Once that's done, I've got my main.

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And notice I've got two mains now, right?

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Project One has a main, which is this one.

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And project Two has a main, which is this one.

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So I'm just going to get rid of this and copy what I did,

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 I'm going to say Hello World, from Project Two,

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like that.

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Notice that's red up here, so I want to save it.

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You'll notice Project One is the active project,

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you see how it's bold and italicized, I can just double click on Project Two.

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And now Project Two is the one that's bold and italicized right there,

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 so it's the active project.

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So when I build and run Project Two is the one that's going to be affected.

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So, I'm going to click the wrench again

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 and I'm going to go up to my general options,

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I'm going to get rid of this.

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And again, like I said, we're not going to have to do this every time,

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but we're just going to do it this time, I'm going to create Project Path.

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Be really careful here, I didn't put a capital P and it must be a capital P,

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just like that.

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Then I'm going to compiler

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 and I'm going to come right over here and I'm going to add these to equal C++ 17,

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just like that.

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You might want to select the linker and type dash static,

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that's up to you.

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I would recommend you do so because it's going to avoid

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problems with finding DLLs and windows and so forth.

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So all you have to do is just click on the linker options and type

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 dash static or hyphen static.

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All one word, no spaces, we'll click apply, we'll click OK,

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 and that's it, we're ready to build.

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So now, I'm going to go to build,

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rebuild Project,

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there we go.

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We have a clean build, and if we run,

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 it's going to say hello from Project Two.

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And that's exactly what we see here, Hello World from Project Two.

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Pretty good.

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All right.

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So, if you have build errors, it's possible.

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We get build errors every day, right? So here's an example.

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I spelled this wrong.

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Instead of io stream, I wrote io steam.

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And now, these red arrows are coming back up saying iosteam file not

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found and so forth.

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So these things kind of help you before we build, to let us know something's not right.

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But if I do try to build my project,

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you see I'm going to get errors here.

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It's going to go io steam, and it's going to say no such file or directory,

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it's kind of telling you something's not right.

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And we've got an error message down here, the build ended with errors.

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So when that happens, we know we've got a problem.

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00:20:02,860 --> 00:20:06,360
If you run into things like this, they're usually pretty easy fixes,

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00:20:06,360 --> 00:20:08,660
a lot of times it's just typos, right?

385
00:20:08,660 --> 00:20:12,350
So if I put that back in and build, we'll be good to go.

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00:20:12,350 --> 00:20:15,950
But if you post something on the Q&A about it and I'll say,

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00:20:15,950 --> 00:20:19,940
rebuild your project and show me the build output, this is what I want to see down here.

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00:20:19,940 --> 00:20:22,140
So, we've got several tabs here.

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00:20:22,140 --> 00:20:24,140
So, you would just click the build tab

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00:20:24,140 --> 00:20:28,040
and copy and paste all this stuff or give me a screenshot and I can really help you with that.

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00:20:28,640 --> 00:20:31,840
Similarly, if we let me close this, we get a new one.

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00:20:31,840 --> 00:20:35,440
If I forgot that semicolon, semicolons are really important.

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00:20:35,740 --> 00:20:38,100
You can see that little red arrow is popping up saying,

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00:20:38,100 --> 00:20:42,000
hey, I expected a semicolon somewhere, right after here.

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00:20:42,000 --> 00:20:43,300
But if I do build, again,

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00:20:45,600 --> 00:20:48,900
I'm going to get an error right there, it's pointing at it, it says, hey,

397
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I'm expecting a semicolon.

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00:20:50,260 --> 00:20:53,950
We can't run our program until we get a clean build

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so I can put the semicolon back in.

400
00:20:56,450 --> 00:20:59,750
And as you can imagine, there's a lot of places to make mistakes, right?

401
00:20:59,750 --> 00:21:03,550
I spell main wrong, I forget one of these quotes here,

402
00:21:03,550 --> 00:21:06,550
we have to close them up a whole bunch of places,

403
00:21:06,550 --> 00:21:08,550
I forget this closing curly.

404
00:21:09,150 --> 00:21:11,250
So there are a lot of places where things can go wrong.

405
00:21:11,250 --> 00:21:15,400
But once you have this environment set up and you've got a build,

406
00:21:15,400 --> 00:21:19,000
we're good to go, we can proceed and we can write code in the course.

407
00:21:19,000 --> 00:21:24,300
Now, the last thing I'd like you to do is come up to settings,

408
00:21:25,100 --> 00:21:27,400
preferences and come over here to where it says miscellaneous

409
00:21:28,300 --> 00:21:32,200
and it says check for new version on startup and just unclick that,

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otherwise it's going to really pester you a lot saying, hey, there's a new version of codeLite out there.

411
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Resist the urge to download and install new versions.

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New versions often come with bugs, often come with a lot of changes.

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Once you have your development environment set up for this course,

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00:21:48,600 --> 00:21:49,300
 just leave it alone.

415
00:21:49,300 --> 00:21:52,760
Use it that way for the whole course and you're not going to have it any trouble.

416
00:21:52,760 --> 00:21:56,060
Don't just keep updating at every point release because that's

417
00:21:56,060 --> 00:21:59,420
 just asking for trouble and for misconfiguration errors.

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00:21:59,420 --> 00:22:03,220
Okay, so I'm going to click apply and okay,

419
00:22:03,720 --> 00:22:05,720
 and we're pretty much done.

420
00:22:05,720 --> 00:22:08,720
So if you've gotten this far and you've got your build system all set up,

421
00:22:08,720 --> 00:22:10,920
congratulations, we're good to go.

422
00:22:10,920 --> 00:22:13,920
Next step is to head over to the

423
00:22:13,920 --> 00:22:17,610
 video where I'm going to show you how to set up a project template

424
00:22:17,610 --> 00:22:19,610
 so that you don't have to go through all the stuff that I just

425
00:22:19,610 --> 00:22:21,610
went through, we only have to do it once.

426
00:22:21,610 --> 00:22:24,610
And then from that point forward, we just create a new project

427
00:22:24,610 --> 00:22:26,610
 based on an existing project

428
00:22:26,610 --> 00:22:31,300
and all this project path and all of this compiler stuff and all of this

429
00:22:31,300 --> 00:22:34,200
 linker stuff is going to be done for us automatically,

430
00:22:34,200 --> 00:22:35,800
so we don't have to do that again.

431
00:22:35,800 --> 00:22:37,400
All right, so I'll see you in that video.