捕获所有键盘键包括 [英] capture all keyboard key including

问题描述

如何在c＃.net

推荐答案

中捕获所有键盘键，包括键左键，键右键，键盘键事件一旦我发现有些情况我在哪里无法使用该方法捕获击键。这篇文章中描述的方法帮助我和mey在某些情况下有用：http://social.msdn.microsoft.com/Forums/vstudio/en-US/cf884a91-c135-447d-b16b- 214d2d9e9972 / capture-all-keyboard-input-what-what-c​​ontrol-has-focus [ ^ ]

Once I found there were some situations where I was not able to capture keystrokes with that method. The method described in this post helped me and mey be useful in some cases: http://social.msdn.microsoft.com/Forums/vstudio/en-US/cf884a91-c135-447d-b16b-214d2d9e9972/capture-all-keyboard-input-regardless-of-what-control-has-focus[^]

private void Form1_Load(object sender, EventArgs e)
{
    this.KeyPreview = true;
    this.PreviewKeyDown += new PreviewKeyDownEventHandler(Form1_PreviewKeyDown);
    textBox1.PreviewKeyDown += new PreviewKeyDownEventHandler(Form1_PreviewKeyDown);
}

private void Form1_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
{
    try
    {
        MessageBox.Show(e.KeyCode.ToString() + " key pressed on " + sender.ToString());
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}

使用任何控件的keydown事件..

这里我用的是textbox' x KeyDown事件..

use keydown event of any control ..
here i am used textbox'x KeyDown event..

private void textBox1_KeyDown(object sender, KeyEventArgs e)
       {
           MessageBox.Show(e.KeyData.ToString());
       }

这篇关于捕获所有键盘键包括的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！