记录快捷键

#region 快捷键相关 
/// <summary> 
/// 记录快捷键 
/// </summary> 
private void txtHotKey_KeyDown(object sender, KeyEventArgs e) 
{ 
	int HotKeyValue = 0; 
	string HotKeyString = ""; 

	e.SuppressKeyPress = false; 
	e.Handled = true; 

	if (e.Modifiers != Keys.None) 
	{ 
		switch (e.Modifiers) 
		{ 
			case Keys.Control: 
				HotKeyString += "Ctrl + "; 
				HotKeyValue = (int)e.Modifiers; 
				break; 
			case Keys.Alt: 
				HotKeyString += "Alt + "; 
				HotKeyValue = (int)e.Modifiers; 
				break; 
			case Keys.Shift: 
				HotKeyString += "Shift + "; 
				HotKeyValue = (int)e.Modifiers; 
				break; 
			case Keys.Control | Keys.Alt: 
				HotKeyString += "Ctrl + Alt + "; 
				HotKeyValue = (int)e.Modifiers; 
				break; 
			case Keys.Control | Keys.Shift: 
				HotKeyString += "Ctrl + Shift + "; 
				HotKeyValue = (int)e.Modifiers; 
				break; 
			case Keys.Alt | Keys.Shift: 
				HotKeyString += "Alt + Shift + "; 
				HotKeyValue = (int)e.Modifiers; 
				break; 
			case Keys.Control | Keys.Alt | Keys.Shift: 
				HotKeyString += "Ctrl + Alt + Shift + "; 
				HotKeyValue = (int)e.Modifiers; 
				break; 
		} 
		if (e.KeyCode != Keys.None && e.KeyCode != Keys.ControlKey && e.KeyCode != Keys.Menu && e.KeyCode != Keys.ShiftKey) 
		{ 
			HotKeyString += KeyCodeToString(e.KeyCode); 
			HotKeyValue += (int)e.KeyCode; 
		} 
	} 
	else 
	{ 
		if (e.KeyCode == Keys.Delete || e.KeyCode == Keys.Back) 
		{ 
			HotKeyString = "无"; 
			HotKeyValue = -1; 
		} 
		else if (e.KeyCode != Keys.None) 
		{ 
			HotKeyString = KeyCodeToString(e.KeyCode); 
			HotKeyValue = (int)e.KeyCode; 
		} 
	} 

	if (HotKeyValue == 0) 
		HotKeyValue = -1; 

	TextBox txtHotKey = (TextBox)sender; 
	txtHotKey.Text = HotKeyString; 
	txtHotKey.Tag = HotKeyValue; 
	txtHotKey.SelectionStart = txtHotKey.Text.Length; 
} 

/// <summary> 
/// 将按键转换成相应字符 
/// </summary> 
/// <param name="KeyCode">按键</param> 
/// <returns>字符</returns> 
private string KeyCodeToString(Keys KeyCode) 
{ 
	if (KeyCode >= Keys.D0 && KeyCode <= Keys.D9) 
	{ 
		return KeyCode.ToString().Remove(0, 1); 
	} 
	else if (KeyCode >= Keys.NumPad0 && KeyCode <= Keys.NumPad9) 
	{ 
		return KeyCode.ToString().Replace("Pad", ""); 
	} 
	else 
	{ 
		return KeyCode.ToString(); 
	} 
} 

/// <summary> 
/// 设置按键不响应 
/// </summary> 
private void txtHotKey_KeyPress(object sender, KeyPressEventArgs e) 
{ 
	e.Handled = true; 
} 

/// <summary> 
/// 释放按键后，若是无实际功能键，则置无 
/// </summary> 
private void txtHotKey_KeyUp(object sender, KeyEventArgs e) 
{ 
	CheckHotkey(sender); 
} 

/// <summary> 
/// 失去焦点后，若是无实际功能键，则置无 
/// </summary> 
private void txtHotKey_LostFocus(object sender, EventArgs e) 
{ 
	CheckHotkey(sender); 
} 

/// <summary> 
/// 检查是否无实际功能键，是则置无 
/// </summary> 
private void CheckHotkey(object sender) 
{ 
	TextBox txtHotKey = (TextBox)sender; 
	if (txtHotKey.Text.EndsWith(" + ") || String.IsNullOrEmpty(txtHotKey.Text)) 
	{ 
		txtHotKey.Text = "无"; 
		txtHotKey.Tag = -1; 
		txtHotKey.SelectionStart = txtHotKey.Text.Length; 
	} 
} 
#endregion