haXe Forum > How to build DLL for cpp.Lib.load()

• Exey Panteleev Feb 04 at 14:55

  I want to create my own DLL haxe extensions (haxe to native C++ app).
  I've compiled a DLL in Microsoft Visual C++ 2008 Express Edition:

  dllheader.h
  

  #ifndef DLLHEADER_H_INCLUDED
  #define DLLHEADER_H_INCLUDED
  
  #ifdef DLL_EXPORT
  # define EXPORT __declspec (dllexport)
  #else
  # define EXPORT
  #endif
  
  #include "lib/include/hx/CFFI.h"
  
  extern EXPORT value hello_world ();
  
  #endif

  main.cpp
  

  #define DLL_EXPORT
  #define IMPLEMENT_API
  #include "dllheader.h"
  
  EXPORT value hello() {
      char *str = "Hello world!";
      return alloc_string(str);
  }

  I'm put it c:\Program Files\Motion-Twin\haxe\lib\hxcpp\2,05,1\bin\Windows\
  and tried out to use it in my haxe class:
  

  private static var helloDLL = cpp.Lib.load("dlltest", "hello_world", 0);

  but when I started debug it, console is thrown out:
  

  Could not find primitive hello_world__0.

  and helloDLL() returns 0
  :(

  How to compile compatible with haxe DLL?

• heinz hoelzer Feb 09 at 21:02

  hi, you should put your question on the mailing list, there it's more likely to get answered.

  http://lists.motion-twin.com/mailman/listinfo/haxe

• Philipp Klose Feb 09 at 21:16

  I never tested it I read that the module system of the cpp is similar to the neko module system. So try something similar to this: C Foreign Function Interface, http://nekovm.org/doc/ffi

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