求封锁特殊功能键的完整源代码，分不够，再加

Question

如题，我要在程序中封锁特殊的功能键，希望有完整的代码，谢谢

Answer 1

http://community.csdn.net/Expert/topic/4252/4252576.xml?temp=.5866815

Answer 2

可以参考：
How to lock keyboard and mouse on XP
http://www.codeproject.com/vb/net/LockKeyboard.asp虽然是VB.NET的代码，但是很简单，应该能看明白。

Answer 3

这是我写的一个C#的事例Hook.dll,你自己翻译一下吧using System;
using System.Runtime.InteropServices;namespace Hook
{
/// <summary>
/// 设置键盘钩子屏蔽win键
/// </summary>
public class Win32Hook
{
public Win32Hook()
{

} private IntPtr hHook  =IntPtr.Zero;  

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

public const int WH_KEYBOARD = 13; [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern IntPtr SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId); [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern bool UnhookWindowsHookEx(IntPtr idHook); [DllImport("user32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]
public static extern int CallNextHookEx(IntPtr idHook, int nCode, IntPtr wParam, IntPtr lParam);
  
[DllImport("kernel32.dll",CharSet=CharSet.Auto, CallingConvention=CallingConvention.StdCall)]  
private static extern IntPtr GetModuleHandle(string lpModuleName); [StructLayout(LayoutKind.Sequential)] 
public struct KBDLLHOOKSTRUCT 
{  
public int vkCode;  
public int scanCode;  
public int flags;  
public int time;  
public int dwExtraInfo; 
}
private int KeyBoardHookProc(int nCode, IntPtr wParam, IntPtr lParam)
{
KBDLLHOOKSTRUCT kb = (KBDLLHOOKSTRUCT)Marshal.PtrToStructure(lParam, typeof(KBDLLHOOKSTRUCT)); if (nCode < 0)
{
return CallNextHookEx(hHook, nCode, wParam, lParam);
}
else
{
if (kb.vkCode != 91)
return CallNextHookEx(hHook, nCode, wParam, lParam); //不等于win键时
else
return 1;//等于win键时吃掉键盘消息
}
} //设置Hook
public bool Hook()
{
if (hHook == IntPtr.Zero)
{
HookProc KeyBoardHookProcedure = new HookProc(KeyBoardHookProc);  
hHook = SetWindowsHookEx(WH_KEYBOARD, KeyBoardHookProcedure, GetModuleHandle("Hook.dll") ,0);
if(hHook == IntPtr.Zero)
return false;
else
return true;
}
else
return true;
         } //取消Hook
public bool UnHook()
{
if (hHook != IntPtr.Zero)
{
bool ret = UnhookWindowsHookEx(hHook);
hHook = IntPtr.Zero ;
return ret;
}
else
return true;
}
}
}