How can I use wxLua in LuaLaTeX on Windows?

Question

I have some problems using wxLua in LuaLateX.

This works:

lua simpleui.lua

(print instead of tex.print)

But if I try this:

lualatex wx.tex

it doesn't work.

\documentclass{article}
\directlua{require("simpleui.lua")}
\usepackage{color}

\begin{document}
  {\Huge\color{\ChoicewxRadioBox} Test!}
\end{document}

Error:

simpleui.lua:

require("wx")

frame = nil

function HandleEvents(event)
  local name = event:GetEventObject():DynamicCast("wxWindow"):GetName()
  print(string.format("\\global\\def\\Choice%s{%s}", name, event:GetString()))
end

function main()
  frame = wx.wxFrame(wx.NULL,
                     wx.wxID_ANY,
                     "Erstellen Sie Ihr PDF-Dokument mit LuaTeX",
                     wx.wxDefaultPosition,
                     wx.wxSize(185, 85),
                     wx.wxDEFAULT_FRAME_STYLE)
  local panel = wx.wxPanel(frame, wx.wxID_ANY)
  local choices = {"blue", "red", "green"}
  local radioBox = wx.wxRadioBox(panel,
                                 wx.wxID_ANY,
                                 "Farbe",
                                 wx.wxDefaultPosition,
                                 wx.wxDefaultSize,
                                 choices, 1,wx.wxRA_SPECIFY_ROWS)
  frame:Connect(wx.wxID_ANY,
                wx.wxEVT_COMMAND_RADIOBOX_SELECTED,
                HandleEvents)
  frame:Show(true)
end

main()

wx.wxGetApp():MainLoop()

The folder contains the following files:

• lua51.dll
• lua5.1.dll
• simpleui.lua
• wx.tex
• wx.dll

I am using Lua 5.1 and LuaTeX beta-0.70.2 (MikTeX 2.9).

texlua simpleui.lua doesn't work:

The example is on page 24:

http://www.dante.de/events/Archiv/dante2012/Programm/Vortraege/vortrag-meigen.pdf

Edit: I was able to compile the wxlua libs on Linux and it works, but i still haven't any solution for windows.

Answer 1

The german message says %1 is not a valid Win32 application.

May be you first quickly check all your wx module files (may be `wc*.*' ?), if they look like the ususal DLL files.

It is quite possible that you have different environment settings (especially PATH) when running lua directly and when lua is executed inside the luatex.

Then different versions may be found of 1. what was already loaded in the moment (DLL files and the lua itself), 2. what is going to be loaded.

Take control of that.

Longer answer starts by suggestion to find of what various version of DLL files you have (including the lua.exe itself versus the built lua in luatex.)

Then you should compare the environment variables on your command line and those that are available to DLL started by luatex. May simply execute the command prompt (interactivelly or not) from inside luatex. Create AAA.BAT containing

echo I AM HERE
SET
echo I-would  lua someprog.lua
ehoo I-would  lua simpleui.lua

and make it executed from inside of your TeX file. Check you see I AM HERE, meditate about what SET outputs and then start testing what happens if you remove echo I-would -- for some simple someprog.lua first.

Also the two files lua51.dll, lua5.1.dll might be part of the problem. Loading DLL's in the current directory can be sometimes done and sometimes not.