封裝好的類，直接添加到工程中就可以使用。

注意：? 這種方式可能會出一些意想不到的問題，比如在windows mobile平臺，直接在C#程序中使用coredll.dll的鉤子，可能導(dǎo)致cursor顯示不正常，C#程序中啟動新的其他進程，返回時點按鍵可能導(dǎo)致程序卡死等其他問題，雖然方便，但不建議如此使用鉤子。建議的方式是用C++編譯一個鉤子程序，在C#程序中調(diào)用，這樣，鉤子和C#程序不在一個進程中，安全性更高一些。

/*這個類是用來屏蔽相關(guān)按鍵的，你可以new一個這個類的實例，然后調(diào)用相關(guān)的public方法就可以了,在C#程序中，你要在程序開始的位置調(diào)用，也就是Main函數(shù)中的窗體創(chuàng)建語句前調(diào)用開始鉤子函數(shù)。在Main函數(shù)結(jié)束的位置再調(diào)用鉤子關(guān)閉函數(shù)。將你想屏蔽的按鍵的鍵值添加到對應(yīng)的位置，注釋里面有解釋，請查看。*/
	
	public?class?KeyBoardHookClass
????{
????????public?delegate?int?HookProc(int?nCode,?int?wParam,ref?KeyMSG?lParam);?????????//聲明代理，用于回調(diào)函數(shù)
????????private?static?int?hKeyboardHook?=?0;
????????private?HookProc?KeyboardHookProcedure;

????????//win32下使用user32.dll??windows?mobile?6.5下使用coredll.dll

????????//設(shè)置鉤子
????????[DllImport("coredll.dll",EntryPoint?=?"SetWindowsHookEx")]
????????public?static?extern?int?SetWindowsHookEx(HookType?idHook,?HookProc?lpfn,?IntPtr?hInstance,?int?threadId);
????????//抽調(diào)鉤子
????????[DllImport("coredll.dll",?EntryPoint?=?"UnhookWindowsHookEx")]
????????public?static?extern?bool?UnhookWindowsHookEx(int?idHook);

		//獲得模塊的句柄
????????[DllImport("coredll.dll",?EntryPoint?=?"GetModuleHandle")]
????????public?static?extern?IntPtr?GetModuleHandle(string?name);
		
		//鉤子消息循環(huán)
????????[DllImport("coredll.dll",?EntryPoint?=?"CallNextHookEx")]
????????public?static?extern?int?CallNextHookEx(int?idHook,?int?nCode,?int?wParam,?ref?KeyMSG?lParam);

????????//鉤子類型,可以根據(jù)情況自定義類型
????????public?enum?HookType
????????{
????????????WH_KEYBOARD?=?2,
????????????WH_KEYBOARD_LL?=?20			//鍵盤鉤子
????????}

????????//鍵值枚舉,可以把你想屏蔽的按鍵定義在這個枚舉里面
????????public?enum?KeyValueMap?:?int
????????{
			VK_ESCAPE=0x1B,??	//ESC
			VK_RETURN=0x0D,	?	//RETURN,回車
			VK_APP5=0xC5,????	//藍色FN
			VK_APP2=0xC2?,???	//黃色FN
			VK_APP1=0xC1,	?	//WIN,菜單鍵
			VK_TEND?=?0x73,??	//End,掛斷鍵
			VK_TTALK?=?0x72,?	//Talk,撥號鍵
			VK_TVOLUMEUP=0x75,	//音量+
			VK_TVOLUMEDOWN=0x76,//音量-
			VK_BACK=0x08,	?	//BKSP
			VK_SHIFT=0x10,		//SHIFT
			VK_TAB=0x09,		//TAB
			VK_TSTAR=0x77,		//*,星號
			VK_TPOUND=0x78,		//#,井號
????????????WM_KEYDOWN?=?0x0100,
????????????WM_KEYUP?=?0x0101,
????????????WM_SYSKEYDOWN?=?0x0104,
????????????WM_SYSKEYUP?=?0x0105
????????}

????????//鍵盤結(jié)構(gòu)?
????????public?struct?KeyMSG
????????{
????????????public?int?vkCode;?//鍵值?
????????????public?int?scanCode;
????????????public?int?flags;
????????????public?int?time;
????????????public?int?dwExtraInfo;
????????}

		//打開鉤子
????????public?void?StartHook()
????????{
????????????try
????????????{
????????????????KeyboardHookProcedure?=?new?HookProc(KeyboardHookProc);
????????????????hKeyboardHook?=?SetWindowsHookEx(HookType.WH_KEYBOARD_LL,?KeyboardHookProcedure,?IntPtr.Zero,?0);
????????????}
????????????catch?(Exception?ex)
????????????{
????????????????StopHook();
????????????????throw?new?Exception(ex.ToString()?+?"安裝鉤子失敗.");
????????????}
????????}
		
		//關(guān)閉鉤子
????????public?void?StopHook()
????????{
????????????try
????????????{
????????????????UnhookWindowsHookEx(hKeyboardHook);
????????????}
????????????catch?(Exception?ex)
????????????{
????????????????throw?new?Exception(ex.ToString()?+?"卸下鉤子失敗.");
????????????}
????????}

????????//鉤子回調(diào)函數(shù)
????????private?int?KeyboardHookProc(int?nCode,?int?wParam,?ref?KeyMSG?lParam)
????????{
????????????if?(nCode?>=?0)
????????????{
????????????????//Keys?keyData?=?(Keys)wParam;????????????????????????????//wParam用于判斷是按鍵按下還是彈起
????????????????KeyMSG?m?=?(KeyMSG)lParam;
????????????????if?(wParam?==?(int)KeyValueMap.WM_KEYDOWN?||?wParam?==?(int)KeyValueMap.WM_KEYUP?||?wParam?==?(int)KeyValueMap.WM_SYSKEYDOWN?||?wParam?==?(int)KeyValueMap.WM_SYSKEYUP)?????????????????????????????//key?down
????????????????{
????????????????????//處理相關(guān)代碼,需要屏蔽的按鍵在此case
????????????????????switch?(m.vkCode)
????????????????????{
????????????????????????case?(int)KeyValueMap.VK_TEND:???????????????????//屏蔽掉掛斷鍵
????????????????????????case?(int)KeyValueMap.VK_TTALK:
????????????????????????????{
????????????????????????????????return?1;
????????????????????????????}
????????????????????}
????????????????}
????????????}
????????????return?CallNextHookEx(hKeyboardHook,?nCode,?wParam,ref?lParam);
????????}
????}