alt键的关键代码是什么 [英] what is the key code of alt key

问题描述

我想知道alt键的ascii值

解决方案

ALT键没有ASCII值：它是修饰键而不是不影响ASCII值。



如果你想知道是否按下了ALT键，请在Winforms中使用Control.Keys：

  if （（Control.ModifierKeys& Keys.Alt）！=  0 ）
 {
 MessageBox.Show（  AltDown）; 
} 
 

在网络中，你根本无法分辨 - 它不会离开浏览器（终端设备甚至可能没有ALT键）。

alt键没有ASCII表示。它是一个虚拟密钥代码，它们实际上并不对应任何字符。阅读此 [ ^ ]文章了解更多信息。

检查这个。





http://msdn.microsoft.com/en-us/library/system.windows.forms。 keyeventargs.alt.aspx [ ^ ]

i would like to know the ascii value of alt key

解决方案

The ALT key does not have an ASCII value: it is a modifier key and doesn't not affect ASCII values.

If you want to know if the ALT key is pressed, use Control.Keys in Winforms:

if ((Control.ModifierKeys & Keys.Alt) != 0)
    {
    MessageBox.Show("AltDown");
    }

In web, you can't tell at all - it does not leave the browser (and the end equipment may not even have an ALT key).

The alt key doesn't have an ASCII representation. It's a virtual key code, and they don't actually correspond to any characters. Have a read of this[^] article for more information.

Check this.


http://msdn.microsoft.com/en-us/library/system.windows.forms.keyeventargs.alt.aspx[^]

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