如何使用没有接口的JNA的DLL [英] How can I use a DLL with JNA that does not have an interface

问题描述

通过Jython花费大量的时间学习Python来实现一系列基于DLL的功能，我忘了读取Jython的文档，而且缺少ctypes支持，大部分代码都没有用。

我不想使用JNI

我正在尝试从 pcshll32.dll ，从个人通信使用其HLLAPI。

我确实设法使Python与Python几乎没有任何问题，在网络上找到很多文档和食谱真的很容易。

现在我意外发现了JNA，我遇到了很多麻烦。我几乎找不到关于它的信息，特别是当我试图访问非标准的DLL。

从我的理解我需要编写一个pcshll32.class，这将是界面 - 很像User32.class，似乎是一个界面（或者也许我应该调用这个代理...）到User32.dll。

嗯，这就是我认为在阅读这个。

所以...如何导入外部DLL？可能吗？我需要编写接口/代理？那里有样品吗？

解决方案

你应该这样做：

  public interface PcShll32 extends StdCallLibrary {// StdCallLibrary for Windows函数
 
 PcShll32 INSTANCE =（PcShll32）Native.loadLibrary（
pcshll32，PcShll32.class，W32APIOptions .DEFAULT_OPTIONS）; //选项适用于Win32API 
 
 //您的方法
} 
  

当然，你必须为JNA提供这个外部库。

对我而言，最好的解释是源代码

After spending a lot of time learning Python to implement a series of DLL based function into Java via Jython - I forgot to read Jython's documentation, and the lack of ctypes support rendered most of my code useless.

I didn't want to use JNI

I'm trying to access some functions from a pcshll32.dll, from Personal Communications using its HLLAPI.

I did manage to make it work with Python with almost no problems, it was really easy to find a lot of documentation and recipes on the web.

Now I discovered by accident the JNA, and I'm having a LOT of trouble with it. I can barely find information about it, specially when I'm trying to access non-standard DLLs.

From what I understand I need to write a pcshll32.class that will be the interface - much like the User32.class that seems to be an interface (or maybe I should call this a proxy...) to the User32.dll.

Well, that's what I think it's happening after reading this.

So... How can I import an external DLL? Is it possible? Do I need to write the interface/proxy? Are there any samples out there?

解决方案

You should do it like this:

public interface PcShll32 extends StdCallLibrary { //StdCallLibrary is for Windows functions

    PcShll32 INSTANCE = (PcShll32) Native.loadLibrary(
                   "pcshll32", PcShll32.class, W32APIOptions.DEFAULT_OPTIONS); //Options are for Win32API

    // your methods
}

Of course you must provide this external library for JNA.

For me the best explanation is the source code

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