如何使用jni处理系统菜单上的事件 [英] how to handle event on system menu using jni

问题描述

我是Java的新手.我现在要在系统菜单上添加一个额外的菜单，我想处理java swings应用程序中系统菜单上的事件，我为此在c ++中准备了一个dll，但无法处理系统上的事件.如果有任何人帮助我执行此操作，请通过JNI使用wndproc方法通过dll进行菜单.

I am new to java .I add one extra menu on system menu now I want to handle an event on the system menu in java swings application i prepare a dll for that in c++ and i am unable to handle the event on system menu through dll using wndproc method through JNI if there any one who helps me to do this.

推荐答案

您将在此处找到JNI代码:
SWT:标准小工具工具包 [ ^ ]

我知道SWT不是Swing-但是SWT具有必需的JNI代码.

请记住，Swing建立在AWT的原始对象和框架之上.

在

You''ll find the JNI code here:
SWT: The Standard Widget Toolkit[^]

I know SWT is not Swing - but SWT has the required JNI code.

Remember that Swing is built on top of the original objects and framework of AWT.

Inside the

(JDK)\ include文件夹中，您会找到jabat.h
在

(JDK)\include folder you''ll find jawt.h
Inside the

(JDK)\ include \ win32内，您将找到jabat_md.h

limbt_Win32DrawingSurfaceInfo允许您访问本机窗口句柄.

尝试使用 SetWindowLongPtr [ Windows子类化并与C ++类挂钩 [ Jace [ ^ ]效果很好-简化了JNI开发.

最好的问候
Espen Harlinn

(JDK)\include\win32 you''ll find jawt_md.h

jawt_Win32DrawingSurfaceInfo allows you to access the native window handle.

Try subclassing the window using SetWindowLongPtr[^] with GWLP_WNDPROC

Here is an example:
Windows subclassing and hooking with C++ classes[^]

You''ll need to update the example code as shown in the comments by Member 3644181

I''ve found that Jace[^] works nicely - It eases JNI development.

Best regards
Espen Harlinn

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