ctrl 键的 KEY_UP 事件阻止“c"键的 KEY_UP 事件 [英] KEY_UP event of ctrl key blocks KEY_UP event of 'c' key

问题描述

我正在尝试捕获 Ctrl+C.

我多次注意到，C 键没有KEY_UP 事件.我相信在 C 键的 KEY_UP 事件应该在 Ctrl 的 KEY_UP 事件之前或之后抛出的情况下会发生这种情况键.

I have noticed that many times, there is no KEY_UP event for C key. I believe it happens in cases KEY_UP event for C key should be thrown just before or after KEY_UP event for Ctrlkey.

为什么会这样?如何捕捉 KEY_UP 的 C 键?

Why does this happen? How can I catch the KEY_UP for C key?

推荐答案

一切正常:

    <?xml version="1.0" encoding="utf-8"?>
< s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
xmlns:mx="library://ns.adobe.com/flex/mx">

<fx:Script>
    <![CDATA[
        protected function myButton_keyUpHandler(event:KeyboardEvent):void
        {
            myButton.label="";
            if(event.ctrlKey)
                myButton.label+="Ctrl-";
            if(event.altKey)
                myButton.label+="Alt-";
            myButton.label+=String.fromCharCode(event.keyCode)
        }
    ]]>
</fx:Script>



<s:Button id="myButton" keyUp="myButton_keyUpHandler(event)" />


</s:Application>

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