#region 自定义事件

///

/// Hooks the start.

///

public void Hook_Start()

{

// 安装键盘钩子

if (hHook == 0)

{

KeyBoardHookProcedure = new HookProc(KeyBoardHookProc);

hHook = SetWindowsHookEx(WH_KEYBOARD_LL,

KeyBoardHookProcedure,

GetModuleHandle(Process.GetCurrentProcess().MainModule.ModuleName), 0);

//如果设置钩子失败.

if (hHook == 0)

{

Hook_Clear();

}

}

}

//取消钩子事件

///

/// Hooks the clear.

///

/// UnhookWindowsHookEx failed.

public void Hook_Clear()

{

bool retKeyboard = true;

if (hHook != 0)

{

retKeyboard = UnhookWindowsHookEx(hHook);

hHook = 0;

}

//如果去掉钩子失败.

if (!retKeyboard) throw new Exception("UnhookWindowsHookEx failed.");

}

//这里可以添加自己想要的信息处理

///

/// Keys the board hook proc.

///

/// The n code.

/// The w parameter.

/// The l parameter.

/// System.Int32.

public static int KeyBoardHookProc(int nCode, int wParam, IntPtr lParam)

{

return 1;

}

#endregion 自定义事件

#region 暂时屏幕按键

//委托

public delegate int HookProc(int nCode, int wParam, IntPtr lParam);

///

/// The h hook

///

private static int hHook = 0;

///

/// The wh keyboard ll

///

public const int WH_KEYBOARD_LL = 13;

//LowLevel键盘截获，如果是WH_KEYBOARD＝2，并不能对系统键盘截取，Acrobat Reader会在你截取之前获得键盘。

///

/// The key board hook procedure

///

private HookProc KeyBoardHookProcedure;

///

/// Class KeyBoardHookStruct.

///

/// 键盘Hook结构函数

[StructLayout(LayoutKind.Sequential)]

public class KeyBoardHookStruct

{

///

/// The vk code

///

public int vkCode;

///

/// The scan code

///

public int scanCode;

///

/// The flags

///

public int flags;

///

/// The time

///

public int time;

///

/// The dw extra information

///

public int dwExtraInfo;

}

#region DllImport

//设置钩子

///

/// Sets the windows hook ex.

///

/// The identifier hook.

/// The LPFN.

/// The h instance.

/// The thread identifier.

/// System.Int32.

[DllImport("user32.dll")]

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

///

/// Unhooks the windows hook ex.

///

/// The identifier hook.

/// true if XXXX, false otherwise.

[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]

//抽掉钩子

public static extern bool UnhookWindowsHookEx(int idHook);

///

/// Calls the next hook ex.

///

/// The identifier hook.

/// The n code.

/// The w parameter.

/// The l parameter.

/// System.Int32.

[DllImport("user32.dll")]

//调用下一个钩子

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

///

/// Gets the current thread identifier.

///

/// System.Int32.

[DllImport("kernel32.dll")]

public static extern int GetCurrentThreadId();

///

/// Gets the module handle.

///

/// The name.

/// IntPtr.

[DllImport("kernel32.dll")]

public static extern IntPtr GetModuleHandle(string name);

#endregion DllImport