Hello and welcome. 

In this video we are going to explore a new feature of D called importC. 
importC is a C11 compiler embedded into D, thus, enabling direct usage of C code.
And today we are going create a Raylib project in D without using any of the 
available bindings. We are going to use the Raylib library directly in our D 
code.

I have created project folder. For now it contains just the D source file. 
It imports a raylib module, creates a window and renders some text to 
its surface. 

I am using the D version 2.100. 

Now, lets use importC to build our project. 

The first thing we need to do is to create a raylib.c file and include the 
raylib header. There is one important thing I'd like to highlight before 
we continue. importC does not have a preprocessor. So all the macros
and defines won't be available in D. Therefore, if you need a macro from the C
library, you need to redefine it using the C language. 

For example, raylib uses defines to define a basic set of colors. To use those
in my project I am going to create global color variables.

The next step is to run that C file through the C preprocessor. And I will save
the output of to raylib.i. 

We are done. That's it. The final step is to compile our project using the 
preprocessed raylib.i file and link the raylib library itself.

It has successfully compiled the project and if run it... yeah, it works! 

Alright, that's it for today. importC is still being developed, so I will 
update this video in the future, once it is finalized.

Have a nice day, and see you next time.