关于 java:Options in Native.loadLibrary

Options in Native.loadLibrary

我已经在 JNA 工作了一段时间了。但有一件事，我还没有明白。例如，在加载库时：

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Map<String, Integer> options = new HashMap<String, Integer>();
options.put(Library.OPTION_CALLING_CONVENTION, StdCallLibrary.STDCALL_CONVENTION);
this.EDSDK = (EdSdkLibrary) Native.loadLibrary("EDSDK/dll/EDSDK.dll", EdSdkLibrary.class, options);

上面的options到底是什么？

api 说：

public static Object loadLibrary(String name,
Class interfaceClass,
Map options)

Load a library interface from the given shared library, providing the explicit interface class and a map of options for the library. If no library options are detected the map is interpreted as a map of Java method names to native function names.
If name is null, attempts to map onto the current process.

上面的map of options for the library是什么意思？

这是一个包含图书馆选项的地图。一个这样的选项是函数映射器。
您可以在下面找到一个示例：

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System.setProperty("jna.library.path","SiUSBXp.dll");
HashMap<String, StdCallFunctionMapper> optionMap = new HashMap<String, StdCallFunctionMapper>();
StdCallFunctionMapper myMapper = new StdCallFunctionMapper();
optionMap.put(Library.OPTION_FUNCTION_MAPPER, myMapper);
INSTANCE = (SiUSBXp) Native.loadLibrary("SiUSBXp", SiUSBXp.class, optionMap);