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From: "Akira Kakuto" <kakuto@fuk.kindai.ac.jp>
To: <ntg-context@ntg.nl>
Subject: Problem loading a DLL with the latest Ctx beta
Date: Thu, 6 Apr 2017 19:47:56 +0900	[thread overview]
Message-ID: <E273041D96DD40FC83A735AE0362E011@CJ3001517A> (raw)

> How exactly do you mean to combine "ffi" and
> "--shell-escape" to work with latest ConTeXt/LuaTeX?

In usual luatex, ffi needs --shell-escape, since ffi
is dangerous from the point of view of the security.
As you know, ConTeXt allows --shell-escape, so the
following works with context test.tex.

%
% context test.tex
%
\starttext
\placeformula
\startformula
j_1(2.387) =
\startluacode
  local ffi = require("ffi")
  ffi.cdef[[
    double _j1(double x);
  ]]
  local mscrt = ffi.load("msvcrt")
  tex.print(mscrt._j1(2.387))
\stopluacode
\stopformula
\stoptext

In the above example, a function _j1(x) in msvcrt.dll
is evaluated. The msvcrt.dll must be loaded as above,
because standard C library is linked statically.
The following DLLs can be used without loading,
because luatex knows them:

SHLWAPI.dll
WSOCK32.dll
USER32.dll
ADVAPI32.dll
SHELL32.dll
KERNEL32.dll
WS2_32.dll
GDI32.dll

Note that you may not be able to use "DLL Lua Modules"
in this way.  I don't know details. Try various cases.

Best,
Akira

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             reply	other threads:[~2017-04-06 10:47 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-06 10:47 Akira Kakuto [this message]
  -- strict thread matches above, loose matches on Subject: below --
2017-04-08 22:23 Akira Kakuto
2017-04-11  7:04 ` Procházka Lukáš Ing.
2017-04-18 13:52 ` Procházka Lukáš Ing.
2017-04-05 22:05 Akira Kakuto
2017-04-06  9:03 ` Procházka Lukáš Ing.
2017-04-06 11:54   ` Hans Hagen
2017-04-05 12:29 Procházka Lukáš Ing.
2017-04-05 13:06 ` Hans Hagen
2017-04-05 14:12   ` Procházka Lukáš Ing.
2017-04-05 15:02     ` Hans Hagen
2017-04-05 15:49       ` Procházka Lukáš Ing.
2017-04-05 19:42         ` Hans Hagen

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