我们在软件中经常用到快捷键，这里整理备份一下。

首先我们要定义可以作为快捷键的按键，以下是整理的 一些，自己可以根据情况来修改

public static Dictionary HotKeys = new Dictionary()
{
{,""},
{,""},
{,""},
{,""},
{,""},
{,""},
{,""},
{,""},
{,""},
{,""},
{,"A"},
{,"B"},
{,"C"},
{,"D"},
{,"E"},
{,"F"},
{,"G"},
{,"H"},
{,"I"},
{,"J"},
{,"K"},
{,"L"},
{,"M"},
{,"N"},
{,"O"},
{,"P"},
{,"Q"},
{,"R"},
{,"S"},
{,"T"},
{,"U"},
{,"V"},
{,"W"},
{,"X"},
{,"Y"},
{,"Z"},
{,"F1"},
{,"F2"},
{,"F3"},
{,"F4"},
{,"F5"},
{,"F6"},
{,"F7"},
{,"F8"},
{,"F9"},
{,"F10"},
{,"F11"},
{,"F12"},
{,"PageUp"},
{,"PageDown"},
{,"End"},
{,"Home"},
{,"←"},
{,"↑"},
{,"→"},
{,"↓"},
{,"Insert"},
{,"Delete"},
{,";"},
{,"="},
{,","},
{,"-"},
{,"."},
{,"/"},
{,"`"},
{,"["},
{,"\\"},
{,"]"}
};

然后弄个数据表存一下定义功能对应的快捷键，表结构如下

CREATE TABLE [dbo].[HotKey](
[ID] [int] IDENTITY(,) NOT NULL,
[FrmName] [nvarchar]() NULL,
[Sort] [int] NULL,
[ActionName] [nvarchar]() NULL,
[ActionKey] [nvarchar]() NULL,
[KeyValue] [nvarchar]() NULL
) ON [PRIMARY]

GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'界面' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'HotKey', @level2type=N'COLUMN',@level2name=N'FrmName'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'顺序' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'HotKey', @level2type=N'COLUMN',@level2name=N'Sort'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'功能名称' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'HotKey', @level2type=N'COLUMN',@level2name=N'ActionName'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'功能编码' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'HotKey', @level2type=N'COLUMN',@level2name=N'ActionKey'
GO

EXEC sys.sp_addextendedproperty @name=N'MS_Description', @value=N'热键' , @level0type=N'SCHEMA',@level0name=N'dbo', @level1type=N'TABLE',@level1name=N'HotKey', @level2type=N'COLUMN',@level2name=N'KeyValue'
GO

系统启动的时候缓存一下设置的快捷键

public static List HotKeySetting { get; set; }

基类窗体里面写窗体的

写KeyUP  和KeyDown事件

bool m_blnCtrl = false;
bool m_blnAlt = false;
bool m_blnShift = false;

    \[Description("定义的热键列表"), Category("自定义")\]  
    public Dictionary<int, string> HotKeys { get; set; }  
    //如果事件返回true则表示已经找到了快捷键事件，则不再向下传递  
    public delegate bool HotKeyEventHandler(string strHotKey);  
    /// <summary>  
    /// 热键事件  
    /// </summary>  
    \[Description("热键事件"), Category("自定义")\]  
    public event HotKeyEventHandler HotKeyDown;

protected void FrmBase_KeyUp(object sender, KeyEventArgs e)
{
if (HotKeyDown != null && HotKeys != null)
{
if (e.KeyCode == Keys.Control || e.KeyCode == Keys.ControlKey)
m_blnCtrl = false;
if (e.KeyCode == Keys.Alt || e.KeyCode == Keys.Menu)
m_blnAlt = false;
if (e.KeyCode == Keys.Shift || e.KeyCode == Keys.ShiftKey)
m_blnShift = false;
}
}

    protected void FrmBase\_KeyDown(object sender, KeyEventArgs e)  
    {  
        if (HotKeyDown != null && HotKeys != null)  
        {  
            if (e.KeyCode == Keys.Control || e.KeyCode == Keys.ControlKey)  
                m\_blnCtrl = true;  
            if (e.KeyCode == Keys.Alt || e.KeyCode == Keys.Menu)  
                m\_blnAlt = true;  
            if (e.KeyCode == Keys.Shift || e.KeyCode == Keys.ShiftKey)  
                m\_blnShift = true;  
            if (HotKeys.ContainsKey(e.KeyValue))  
            {  
                string strKey = string.Empty;  
                if (m\_blnCtrl)  
                {  
                    strKey += "Ctrl+";  
                }  
                if (m\_blnAlt)  
                {  
                    strKey += "Alt+";  
                }  
                if (m\_blnShift)  
                {  
                    strKey += "Shift+";  
                }  
                strKey += HotKeys\[e.KeyValue\];

                if (HotKeyDown(strKey))  
                {  
                    e.Handled = true;  
                    e.SuppressKeyPress = true;  
                }  
            }  
        }  
    }            

你会注意到keyup和kedown事件的修饰符是protected，为什么要用protected呢？是因为窗体的一些输入控件的按键事件是不会传递到窗体的，比如textbox这些，所有需要手动指定一下

子窗体中注册事件就可以了，如果你没有用基类窗体，那么直接写在一起就可以了

this.HotKeys = HotKeys;
this.HotKeyDown += FrmMain_HotKeyDown;
//将输入框的2个事件指向窗体的2个事件
this.txtSearch.KeyDown += this.FrmBase_KeyDown;
this.txtSearch.KeyUp += this.FrmBase_KeyUp;

///

/// 热键按下事件 ///

/// 热键值
/// 当返回true则表示不再向下传递按键事件，通常当匹配到热键操作后返回true
bool FrmMain_HotKeyDown(string strHotKey)
{
Console.WriteLine(strHotKey);
string strHotAction = GetHotKeyAction("FrmMain", strHotKey);
if (string.IsNullOrEmpty(strHotAction))
return false;
else
{
//这里根据返回的功能名称做操作就可以了
return true;
}
}

public static string GetHotKeyAction(string strFrom, string strHotKey)
{
var entity = HotKeySetting.Find(p => p.FrmName.ToLower() == strFrom.ToLower() && p.KeyValue.ToStringExt().ToLower() == strHotKey.ToLower());
if (entity != null)
return entity.ActionKey;
else
return string.Empty;
}

这样就可以了