First, I really sorry my bad english.

I just want to using Ruby dll file(msvcrt-ruby220.dll).
In the case of C#,
================================================================================
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using INT = System.Int32;

namespace RubyTest01
{
  static class Ruby
  {
    public const string RubyDll = "msvcrt-ruby18";

    [DllImport(RubyDll)]
    public static extern void ruby_init();

    [DllImport(RubyDll)]
    public static extern INT rb_eval_string_protect(byte[] script, ref INT state);

     public static INT rb_eval_string_protect(string script, ref INT state)
     {
        return rb_eval_string_protect(Encoding.UTF8.GetBytes(script + '\0'), ref state);
    }

}

class Program
{
  static void Main(string[] args)
  {
    INT state = 0;
    Ruby.ruby_init();
    Ruby.rb_eval_string_protect("open('test.txt', 'w') {| fp| fp.write(\"Hello World!\\n\")}", ref state);

  }
}
================================================================================

I guess D had something like it, but i don't know how to do it.
Thx!

On Sunday, 6 March 2016 at 14:12:35 UTC, xky wrote:
> First, I really sorry my bad english.
>
> I just want to using Ruby dll file(msvcrt-ruby220.dll).

D can import and use functions from a DLL but you are using a C# library, which is probably not going to work. D can only call functions from DLLs with a C or D interface. If you want to make your own shared libraries or use some C DLLs check these links:

http://wiki.dlang.org/Win32_DLLs_in_D (native .dll -> windows)
https://dlang.org/dll-linux.html (shared object .so -> linux)
https://github.com/DerelictOrg/DerelictUtil (library for loading dll functions on multiple platforms)

Okay, since you clearly have not worked in a native language before, lets start from scratch.

You want to make some bindings to a shared library called "msvcrt-ruby18".
From this I know that it is using the Microsoft Visual C runtime. That means you must build D using this as well.
This is done via the -ms32coff switch for 32bit and -m64 for 64bit (which is easier all up).
You will need Visual studio with all of the c/c++ stuff installed.
Keep in mind you must match the version of Visual C runtime up with the shared libraries one (if you fail enjoy the segfaults!).

Lastly you want some bindings. I won't cover that here. But this should help ya out http://dlang.org/spec/interfaceToC.html

After this you should be able to pass the shared library directly to dmd when in -ms32coff or -m64 mode and it'll all work.

On Sunday, 6 March 2016 at 14:21:55 UTC, Rikki Cattermole wrote:
> Okay, since you clearly have not worked in a native language before, lets start from scratch.
>
> [...]

Sorry for my idiot question. Thanks.

On Sunday, 6 March 2016 at 14:20:34 UTC, WebFreak001 wrote:
> On Sunday, 6 March 2016 at 14:12:35 UTC, xky wrote:
>> First, I really sorry my bad english.
>>
>> I just want to using Ruby dll file(msvcrt-ruby220.dll).
>
> D can import and use functions from a DLL but you are using a C# library, which is probably not going to work. D can only call functions from DLLs with a C or D interface. If you want to make your own shared libraries or use some C DLLs check these links:
>
> http://wiki.dlang.org/Win32_DLLs_in_D (native .dll -> windows)
> https://dlang.org/dll-linux.html (shared object .so -> linux)
> https://github.com/DerelictOrg/DerelictUtil (library for loading dll functions on multiple platforms)

DerelictUtil looks like useful for me. Thank you. :-)

On 07/03/16 4:19 AM, xky wrote:
> On Sunday, 6 March 2016 at 14:21:55 UTC, Rikki Cattermole wrote:
>> Okay, since you clearly have not worked in a native language before,
>> lets start from scratch.
>>
>> [...]
>
> Sorry for my idiot question. Thanks.

Not idiot, its just where you are at and that's ok :)
Sorry for making you feel like that though.