Hi there ,  i have this code :
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import gtk.MainWindow, gtk.Label, gtk.Main;

class GoodbyeWorld : MainWindow {
    this() {
        super("GtkD");
        add(new Label("Goodbye World"));
        showAll();
    }
}

void main(string[] args) {
    Main.init(args);
    new GoodbyeWorld();
    Main.run();
}

________________________________________________

For this i have made a folder named GIT in the linux directory /usr/local/GIT
And Gitcloned in the GIT folder :
git clone https://github.com/nomad-software/x11
git clone https://github.com/nomad-software/tcltk.git
The clones are now in /usr/local/GIT/

When i start the upper code in a cmd the result is as follows :
___________________________________________________________________
$ dmd hw_graphical.d
hw_graphical.d(1): Error: module MainWindow is in file 'gtk/MainWindow.d' which cannot be read
import path[0] = /usr/include/dmd/phobos
import path[1] = /usr/include/dmd/druntime/import


What must be done that the code make a graphical window ?

I want to make the D programming tkd module ready for GUI programming.
Need a step by step advice for BEGINNERS in D programming.

Any Internetlink for step by step instructions how to arrange D and TK would be helpful !

WBR
MHE

On Sunday, 21 January 2018 at 04:16:10 UTC, MHE wrote:
> $ dmd hw_graphical.d

You need to link in and tell the compiler where to find the library. Tru

dmd -I/usr/local/GIT/whatever hw_graphical.d -L-lgtk

and whatever else the library does. I haven't used gtkd so I don't know the exact thing for it, but something like that.

On Sunday, 21 January 2018 at 04:16:10 UTC, MHE wrote:
> [...]
> For this i have made a folder named GIT in the linux directory /usr/local/GIT
> And Gitcloned in the GIT folder :
> git clone https://github.com/nomad-software/x11
> git clone https://github.com/nomad-software/tcltk.git
> The clones are now in /usr/local/GIT/

Hmm, but you are using GtkD in your example... It looks like you compiled the wrong code.
What you actually want is GtkD from https://github.com/gtkd-developers/GtkD or installed from the Debian repositories (in case you want to use LDC) via `sudo apt install libgtkd-3-dev`

> When i start the upper code in a cmd the result is as follows :
> ___________________________________________________________________
> $ dmd hw_graphical.d
> hw_graphical.d(1): Error: module MainWindow is in file 'gtk/MainWindow.d' which cannot be read
> import path[0] = /usr/include/dmd/phobos
> import path[1] = /usr/include/dmd/druntime/import
>
>
> What must be done that the code make a graphical window ?

If you want to use GtkD and achieve a quick result, you might want to use the Dub package manager.
GtkD also has a few demo applications that show you how to use it with dub, take a look at
https://github.com/gtkd-developers/GtkD/tree/master/demos/gtk

> I want to make the D programming tkd module ready for GUI programming.
> Need a step by step advice for BEGINNERS in D programming.

tkd is a project different from GtkD (which your example above is using). For "modern" UI that integrates well with GNOME, you will highly likely want to use GtkD. Tcl/Tk is of course an option as well, but the D bindings look less complete and well maintained.
In case you want to use Tk, you will need to change your code to actually use it, instead of GTK+ though ;-)

> Any Internetlink for step by step instructions how to arrange D and TK would be helpful !

I can't help with Tk, but for GTK+ a quick Google search found https://sites.google.com/site/gtkdtutorial/ - this tutorial is rather old, but it might be useful as a reference.

This experience report by Gerald Nunn might also be an interesting read for you: https://gexperts.com/wp/learning-d-and-gtk/

Cheers,
    Matthias