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HomeBackend DevelopmentPHP TutorialC# WinForm中实现快捷键自定义设置实例_PHP

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项目开发过程中,需要实现类似有道词典的软件设置中的自定义快捷键功能,如下图所示:

当我们相继按下Ctrl+Alt+M的时候,软件就会自动将快捷键显示在文本框中。

最终的效果如下图所示:

核心代码如下所示:

代码如下:


private void keyDown(object sender, KeyEventArgs e)
{
    StringBuilder keyValue = new StringBuilder();
    keyValue.Length = 0;
    keyValue.Append("");
    if (e.Modifiers != 0)
    {
        if (e.Control)
            keyValue.Append("Ctrl + ");
        if (e.Alt)
            keyValue.Append("Alt + ");
        if (e.Shift)
            keyValue.Append("Shift + ");
    }
    if ((e.KeyValue >= 33 && e.KeyValue         (e.KeyValue >= 65 && e.KeyValue         (e.KeyValue >= 112 && e.KeyValue     {
        keyValue.Append(e.KeyCode);
    }
    else if ((e.KeyValue >= 48 && e.KeyValue     {
        keyValue.Append(e.KeyCode.ToString().Substring(1));
    }
    this.ActiveControl.Text = "";
    //设置当前活动控件的文本内容
    this.ActiveControl.Text = keyValue.ToString();
}

private void keyUp(object sender, KeyEventArgs e)
{
    string str = this.ActiveControl.Text.TrimEnd();
    int len = str.Length;
    if (len >= 1 && str.Substring(str.Length - 1) == "+")
    {
        this.ActiveControl.Text = "";
    }
}

e.KeyValue和字符的对应关系

字符 e.KeyValue
a-z|A-Z 65-90
F1-F12 112-123
0-9 48-57
PageUp 33
PageDown 34
End 35
Home 36
左(←) 37
上( ↑ ) 38
右(→) 39
下( ↓ ) 40

接着,为textbox控件分别设置_KeyDown和_KeyUp事件,并在其中调用以上2个核心函数。

如下所示:

代码如下:


private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
    keyDown(sender, e);
}

private void textBox1_KeyUp(object sender, KeyEventArgs e)
{
    keyUp(sender, e);
}


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