FunctionMapper (JNA API)

com.sun.jna

## Interface FunctionMapper

- All Known Implementing Classes:
    StdCallFunctionMapper, W32APIFunctionMapper

      public interface FunctionMapper

  Provides mapping of Java method names to native function names. An instance of this interface may be provided to `Native.loadLibrary(String, Class, java.util.Map)` as an entry in the options map with key `Library.OPTION_FUNCTION_MAPPER`.

  There are several circumstances where this option might prove useful.

  - C preprocessor macros are used to allow C code to refer to a library function by a different name
  - Generated linker symbols are different than those used in C code. Windows `stdcall` functions, for instance, are exported with a special suffix that describes the stack size of the function arguments (see `StdCallFunctionMapper`).
  - The naming of the C library methods conflicts horribly with your Java coding standards, or are otherwise hard to follow. It's generally better to keep the original function names in this case, to avoid confusion about what's actually being called, but the option is available.
  See Also:
    `Library.OPTION_FUNCTION_MAPPER`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `java.lang.String` | `getFunctionName(NativeLibrary library, java.lang.reflect.Method method)`

- - ### Method Detail

    - #### getFunctionName

          java.lang.String getFunctionName(NativeLibrary library,
                                           java.lang.reflect.Method method)

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