需要在swing applet中禁用F10键的Frame Focus

Question

我使用F10作为更新数据进入数据库的快捷方式。每当我按F10更新工作正常但我的焦点移动到菜单栏（该栏包含关闭，最小化，最大化）是否还有停止这个？我知道这是Windows快捷方式那有可能阻止它吗？

Answer 1

You may try to remove the WHEN_IN_FOCUSED_WINDOW action from your JMenuBar . Just add this line into your code :

menuBar.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke("F10"), "none");

Where the menuBar is the reference for your JMenuBar component.

Hope this helps.

EDIT :

Indeed, in case you're not using JMenuBar the above solution does not work. An alternative solution is to create an empty action and use it to bind the F10 key. (see Key Bindings ).

Here is an example :

 //create an empty action which do nothing
Action emptyAction = new AbstractAction(){
     public void actionPerformed(ActionEvent e)
     {   //do nothing here   }};

//bind F10 with the empty action
KeyStroke f10 = KeyStroke.getKeyStroke( "F10");
frame.getRootPane().getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(f10, "F10");
frame.getRootPane().getActionMap().put("F10", emptyAction);

Where frame is your JFrame component.