Hello world!

I'm talking about how to use the local directory

to store images in C#

I have a program with a button

btnCat,

btnMouse, and a picture box picAnimal.

You need to make sure that you set  autosize for the size mode

In the picture box.

Let's run the program first and see what we have here.

At Form load it tells me what my local directory is.

and I'm going to show you the code afterwards

but I have it in myCsharp Cat-Mouse is the name of the project.

bin

Debug

When I click cat,

The picture of the cat.

Is in that debug directory.

And when I click the mouse.

it shows you the path for that, it's also

in that debug directory.

The mouse is an animated gif.

Cat is not, and it's not transparent.

you can see the mouse is transparent there's a wide variety of

types that you can display.

Let's take a look at our code.

Up here, globally, I declare localDirectory

as

The system IO, IO stands for input output.

GetDirectoryName.

And then it says Environment.Get CommandLineArgs and the first argument on the command line.

That's a little complicated, but you can take it as it is, it works.

You can also go out to the Microsoft reference and explore that.

In detail if you want.

But what that gives me,

is

the path to where this file is running from, where my project is.

So let's take a look at that directory:

And you can see here I have

Opened up

myCsharp,

Cat-Mouse, bin, Debug and you can see that I put cat.gif

And mouse.gif

Into that debug directory where my project is.

OK

To use that

In form load I simply display what that local directory is.

Sometimes it's very convenient to display things

As you go along just for debugging purposes.

When I click on the cat button,

I display the local directory + "/cat.gif"

That's what I'm going to show up.

And then picAnimal.Image =

Image.FromFile

And inside parentheses,

that local directory,

plus

The slash  cat.gif.

That slash is important.

OK

When I click on the mouse, I declare a string pic.

Equal to mouse.

And then I'm going to use

The local directory, plus a slash,

plus the pic.

plus dot gif.

So depending on how you got this value.

You might want to.

Do it this way.

So you can compare this statement is exactly the same as the one up there

except that I have pic as a variable so I have to concatenate the local directory,  the Slash.

The name of the animal and the dot gif.

Don't forget the dot, don't forget the Slash.

And that's it.