Learn to code in Delphi | Part 1 | Introduction to Delphi Environment

0:00 welcome to mr long's channel and if you are someone that is thinking about learning how to code or how to program then this is the video series for you this is video one we're going to get familiar with a program called delphi now we ideally when you want to learn programming you don't want to learn a programming language you just want to learn how to program and but you need a programming language to do that so if you are ever learning to write code in that try and learn the basics of programming fundamentals and then you can apply those fundamentals to any programming language that you ever come across but we're going to start off with delphi because that's a nice one to start off with so we're going to just learn about the environment and so that and the rest of this video series will give us the basics and the fundamentals of how we can write code that you can then transfer into other programming languages

0:46 so let's start off with what is delphi well delphi is a as we said a programming language and you write code and that code then gets compiled into a program or application so it's basically you need to make sure that all your code is correct and all that and then it will make the special program that you can then give to other people that is the completed program now it's also called a rad tool or rapid application development tool which means you can create software very quickly think of it this way imagine if you wanted to make something in the kitchen you wanted to make a meal and someone had already done all the shopping for you and you've got all the vegetables and the meats and all the things that you want to cook with in your kitchen that's basically the idea so when we use delphi someone with a whole bunch of people or developers have created a

1:32 whole bunch of tools and components and objects that you can use straight away and you can modify them to be used the way that you want them to be used in your program and you can do this relatively quickly so you can create nice programs very fast it also uses ordinary english words which sometimes is a bit longer to type out but it makes it easier to understand if you have a firm grasp of the basics of the english language then a lot of the code will make sense of the way that the language flows so it helps to learn programming using english words it just makes a little bit easier to grasp the basic concepts and the terminology that we use and then it's a single code base that can be used for lots of platforms if you want to write code for windows or or macintosh or android or all these

2:18 different options this delphi program has a lot of options options for you to be able to write in all of those different platforms so first of all let's talk about emma cardero this is the company that makes delphi the program that we're going to be used now so they create delphi so some of you especially if you're at school in south africa you might be using delphi 2010 a lot of the the exams and that are set in delphi 2010 so you might be familiar with that version of delphi um some of you might be progressing to a newer version which is 10.4 some of you are using that one um and so it's the one of the more recent ones is delphi 11. so those are lots of different versions they're all similar they all have some advantages as you get to later versions they're obviously newer features in that but those are the

3:05 ones that we're going to those the ones that are most commonly used we're going to be looking particularly at how we can get started in 2010 and 10.4 so that you can get an idea of both of them so let's first start off this is delphi over here so if we wanted to open up delphi that's the key how do we get to this particular screen so if you've installed delphi um if you go to your your windows key if you're using a windows computer you go down to the ease you'll see ember cardero will be there there i've got 10.4 if i click on that option you'll see there's the the program to start there and if i want to use ember cardero studio 2010 if i click there you'll see delphi 2010 is there so that's how i get the program to open so here we have what we call delphi 10.4

3:50 this is the general layout there might be a welcome screen in the middle but we'll get to that little later stage so if i want to have dolphin i want to start my first official delphi program there at the top do you see there's the word file we're going to click on the word file and then you would click on the option all those options there you click on new because we're making a new program and then all of these appear now which one do we choose well we're going to regularly use the windows vlc application for delphi that's the one that we're going to use for our programs later on we'll get you one or two of the others but that's the one that i want you to be using when you are using 10.4 now if you are using delphi 2010 it'll look something like this you see it's very similar got very similar features very similar layout um and we're going to do something similar we would click on the word file and we get a whole

4:37 bunch of options that appear we will also click on the on the new because we want a new program but here you'll see there's no the options are slightly different but we still want that vcl form so we're going to go to that option whenever you want to start a new program and you using delphi 2010 so yeah we've got delphi 10.4 opened up we've opened up a new project and this is what it looks like so let's go through the different elements or parts to this particular part of delphi so let's start here on the left hand side there you can see we have the structure panel so during our programming experience we're going to be putting components and different variables and you'll learn what those words are later but different elements to your program are going to be used in the program and that's going to

5:23 all be listed under the structure so you can see all the different elements there and where they fit so what's nice is if you've got lots of different elements and you're struggling to find one that's normally a good place to look for them the other part to this is the project manager now we don't deal too much with that in the beginning that just tells me the different files that are in my project you can manage your project there later on we will add other types of files they're going to interact with our delphi project we can do that on that side there as well this part is the form or some people call the form designer this is if you think of a artist when they make a painting they will take a blank canvas and then put paint onto that blank canvas i like to think of my form as my canvas this is what we're going to put different elements on like a buttons and

6:10 like different edit boxes all these different components are going to appear on my form and that's what the user is going to see now you'll notice the whole bunch of little dots they don't worry too much about the dots those don't appear when the program is actually running and those dots are just there to help you line up everything so it's nice and neat and all in alignment when you are putting stuff together then we have the object inspector now this object inspector has a list of all the properties and the events which we'll learn about later of the selected component or object that he selected now you'll notice when we clicked on our form when we had our form you see those little bubbles around the form that tells me that that form is the selected object and you can obviously drag that to make that bigger and smaller but because the

6:56 form is the selected object there under the word object inspector you'll also see the word form one you can see that is the object that is selected so these are the properties of this form and the events if we click on the events tab we'll get to the events of this form now these properties obviously for this particular form if i have another object on my form let's say a button and i click on it then obviously those uh properties will be visible here so this is where we get to change the properties of our particular form before the program runs basically the default values of how we wanted to look from the very beginning and then we said that our form is our canvas and we want to if you're an artist you're going to put colors onto your your your canvas well in

7:41 programming we're going to put different components and there on the right hand side at the bottom is our tool palette or some people call component palettes so that means all of our different components or things that have been designed for us already by previous developers they are all going to be listed there in different little menus there there's a whole bunch of ones under standard and an additional so you might find like a button or like a spin edit or something like that that we're going to put onto our form now if you don't know what those words mean that's fine we're going to get to them when we get to other examples so there we go that's the basic just of the layout of delphi um so that's what you want to be seeing if you get familiar with those we're going to be using a lot of those little different parts of delphi to be able to interact with our program and in our next video

8:28 we're going to look at how we can save a delphi program and how we can open it up because that's very important before we even get started so that's going to be our next video so go check that out for the rest of us learn how to code series go to our youtube channel click on that subscribe button leave a like go to the playlist so you can see which topics you want to cover and remember don't do it the long way do it the mr long way