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README.md

README.md

lj2win32

module supporting win32 ffi binding

If you are writing LuaJIT code on the Windows platform, the binding code here will make that task easier. The code was originally borrowed from TINN. The difference is, whereas TINN provides an entire application shell within which you run your code, this project just provides raw low level bindings, without all the application level stuff. This makes it possible for you to write simple applications by just requiring the bits and pieces of this package as your needs dictate.

The ultimate goal is that you'd be able to use luarocks to install this thing. Without luarocks, you can simply copy the win32 directory and its contents into you luajit distribution directly and you're good to go.

In the TINN project, there are core low level win32 bindings, as well as lots of higher level Lua 'object' modules. That makes for an entire package of convenience. It makes it easy to throw together applications from simple Windows on the screen to complex high scale internet services. This is great, but if you don't like the object models, it's kind of a pain to tease apart. In this project, you primarily get the bindings, with fewer object abstractions. The abstractions are saved for the sample code and experimental area.

The primary bindings found in the win32 directory cover the standard APIs as are found in gdi32, user32, opengl32, kernel32, and some others that are of common usage.

The directory 'experimental/apiset' contains the much more slenderized 'apiset' representation of the APIs. These are new style as of Windows 8, where much smaller libraries can be pulled in without dragging in as many dependencies.

These might be the subject of a future project which is faithful to the apiset approach rather than this more standard 'win32' approach.

Design Concepts

There are a few guiding design concepts that drive the creation of this body of work. Collectively, they define the set of expectations that any consumer of the library can rely on. They are meant to enhance the ability to use the routines in conjunction with other libraries and routines, as well as make for a faithful rendering of the underlying Win32 APIs.

  • Nothing should be placed in the global address space (with a couple of exceptions)
  • All integer constants that can be, should be accessible through ffi.C.*
  • Lowest level ffi binding should be true to native functions
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