X11 Tutorials - 1 - Creating a Simple Window

Hey everyone! Welcome to the first episode of our X11 series. In this tutorial, we try to create a simple window by establishing our connection to Xorg server and mapping our windows to display.

I have purposely written everything in our main program, as we progress i will organize everything more.

Content:
Establishing connection with our Xserver
Getting screen and root window from Xserver
Creating a simple window
Mapping our window to display
Starting our event loop (XEvent)
Cleaning up what we created

X11, linux, xorg, Xwindow system, C, display server

[mohammedyassin]

This is really nice introduction to X11 programming and i loved it :)

[iAmTheWagon]

Exactly what I was looking for. Thank you so much!

[SpicaSuzuki]

Aslinda ilgimi ceken bir konuydu bu konu hakkinda Bir kaynak bulmak cok hos bir sey gercekten. Anlamayacagimi sanmam since i know english wery vell but if i do fail in understanding or if i want to talk more spesfic i can ask questions by using my native language

[davititchanturia]

good, seems like you are going to write your version of dwm :d

[ИльяМартьянов-ии]

Hi man. I want asking you which distribution linux use and how you created beautiful and big console?

[hugog]

Excelent tutorials. What plugins do you use for C programming in vim/neovim?

[mrdixioner]

After running the make file in the terminal, a bunch of "Undefined reference" errors appear (XCreateWindow, XNextEvent, XMapWindow, etc.). I completely copied all your files, but the errors still appear.
I have Linux Mint 21, VS Code text editor.

P.S. After some time I found an error in your make file. In the line ${CC} -o $@ ${LDFLAGS} ${OBJ} you need to swap the last two values, i.e. so that it looks like: ${CC} -o $@ ${OBJ} ${LDFLAGS}

[bachirhalitim]

That was great thank u much.
How I can find the sources please
Thank you a lot

[orbitx]

is this the way to create desktop environment?

[luciferMorningstar-koqc]

It’s not grabbing the dpy it doesn’t like the Display*

[mtalhaaygen]

hocam c programlamayı nerde nasıl öğrendin geliştirdin bizlere trick verebilirsen çok mutlu oluruz

[LucasRibeiro-ntyq]

eu fiquei... acho que o Brasil vai ser feliz, mas antes tem que superar a infelicidade... parece que não, mas as pessoas escolhem tomar no c porque não entendem a felicidade... o emocional de quem fez o L (geralmente invertido para quem vê kk) não tem muita ideia de como é um país, mas o barba magnetizou