windows mobile 键盘钩子 屏蔽按键

封装好的类，直接添加到工程中使用。

    public class KeyBoardHookClass

    {

        public delegate int HookProc(int nCode, int wParam,ref KeyMSG lParam);         //声明代理，用于回调函数

        private static int hKeyboardHook = 0;

        private HookProc KeyboardHookProcedure;



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



        //设置钩子

        [DllImport("coredll.dll",EntryPoint = "SetWindowsHookEx")]

        public static extern int SetWindowsHookEx(HookType idHook, HookProc lpfn, IntPtr hInstance, int threadId);

        //抽调钩子

        [DllImport("coredll.dll", EntryPoint = "UnhookWindowsHookEx")]

        public static extern bool UnhookWindowsHookEx(int idHook);



        [DllImport("coredll.dll", EntryPoint = "GetCurrentThreadId")]

        public static extern int GetCurrentThreadId();



        [DllImport("coredll.dll", EntryPoint = "GetModuleHandle")]

        public static extern IntPtr GetModuleHandle(string name);



        [DllImport("coredll.dll", EntryPoint = "CallNextHookEx")]

        public static extern int CallNextHookEx(int idHook, int nCode, int wParam, ref KeyMSG lParam);



        //钩子类型

        public enum HookType

        {

            WH_KEYBOARD = 2,

            WH_KEYBOARD_LL = 20

        }



        //键值枚举

        public enum KeyValueMap : int

        {

            VK_TEND = 0x73,                   // 挂断键

            VK_TTALK = 0x72,                  //拨号键

            WM_KEYDOWN = 0x0100,

            WM_KEYUP = 0x0101,

            WM_SYSKEYDOWN = 0x0104,

            WM_SYSKEYUP = 0x0105

        }



        //键盘结构 

        public struct KeyMSG

        {

            public int vkCode; //键值 

            public int scanCode;

            public int flags;

            public int time;

            public int dwExtraInfo;

        }



        public void StartHook()

        {

            //安装键盘钩子   

            try

            {

                KeyboardHookProcedure = new HookProc(KeyboardHookProc);

                hKeyboardHook = SetWindowsHookEx(HookType.WH_KEYBOARD_LL, KeyboardHookProcedure, IntPtr.Zero, 0);

            }

            catch (Exception ex)

            {

                StopHook();

                throw new Exception(ex.ToString() + "安装钩子失败.");

            }

        }

        public void StopHook()

        {

            try

            {

                UnhookWindowsHookEx(hKeyboardHook);

            }

            catch (Exception ex)

            {

                throw new Exception(ex.ToString() + "卸下钩子失败.");

            }

        }



        //钩子回调函数

        private int KeyboardHookProc(int nCode, int wParam, ref KeyMSG lParam)

        {

            if (nCode >= 0)

            {

                //Keys keyData = (Keys)wParam;                            //wParam用于判断是按键按下还是弹起

                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

                {

                    //处理相关代码

                    switch (m.vkCode)

                    {

                        case (int)KeyValueMap.VK_TEND:                   //屏蔽掉挂断键

                        case (int)KeyValueMap.VK_TTALK:

                            {

                                return 1;

                            }

                    }

                }

            }

            return CallNextHookEx(hKeyboardHook, nCode, wParam,ref lParam);

        }

    }