2024年4月26日发(作者：)
//屏蔽键盘
using System;
using c;
using ;
using pServices;
using ;
using tion;
namespace KeyboardDLL
{
public class KeyboardHook
{
public delegate int KeyboardProc(int nCode, IntPtr wParam,
IntPtr lParam);
static int hKeyboardHook = 0;
KeyboardProc KeyboardHookProcedure;
///
/// 钩子函数,需要引用空间(using tion;)
/// 线程钩子监听键盘消息设为2,全局钩子监听键盘消息设为13
/// 线程钩子监听鼠标消息设为7,全局钩子监听鼠标消息设为14
///
public const int WH_KEYBOARD = 13;
public const int WH_MOUSE_LL = 14;
public struct KeyboardMSG
{
public int vkCode;
public int scanCode;
public int flags;
public int time;
public int dwExtraInfo;
public int VK_CONTROL;
public int VK_MENU;
public int VK_DELETE;
}
///
/// 是Windows 95,Windows 98和Windows Me中使用的
32位动态链接库文件。
/// 是负责内存管理、输入输出以及中断等工作。启动Windows
系统之后，
/// 就会被装载到不会被其他应用程序影响的受保护的内存空间
中。在某些时候，
/// 会出现invalid page fault(IPF)错误信息，这是由于其他应用程序视
图访问
/// 所在的受保护内存空间引起的。不过有时，特定的某些程序也能引起这种错
误。
///
///
[DllImport("kernel32")]
public static extern int GetCurrentThreadId();
[DllImport("", CharSet = ,
CallingConvention = l)]
public static extern int SetWindowsHookEx(int idHook,
KeyboardProc lpfn, IntPtr hInstance, int threadId);
[DllImport("", CharSet = ,
CallingConvention = l)]
public static extern bool UnhookWindowsHookEx(int idHook);
[DllImport("", CharSet = ,
CallingConvention = l)]
public static extern int CallNextHookEx(int idHook, int nCode,
IntPtr wParam, IntPtr lParam);
private int KeyboardHookProc(int nCode, IntPtr wParam, IntPtr
lParam)
{
KeyboardMSG m =
(KeyboardMSG)tructure(lParam, typeof(KeyboardMSG));
if ((int) == 91 || (int) == 92
||(int) == 10)
{
return 1;
}
if (((int) == 46) && ((int) == 17) &&
((int) == 18))
{
return 2;
}
if ((int) == 20)
{
return 1;
}
if (1 == 1)
{
return 1;
}
return CallNextHookEx(hKeyboardHook, nCode, wParam,
lParam);
}
// 安装钩子
public void KeyMaskStart()
{
if (hKeyboardHook == 0)
{
// 创建HookProc实例
KeyboardHookProcedure
KeyboardProc(KeyboardHookProc);
= new
// 设置线程钩子
hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD,
KeyboardHookProcedure,
STANCE(cutingAssembly().GetModules()
[0]), 0);
// 如果设置钩子失败
if (hKeyboardHook == 0)
{
KeyMaskStop();
throw new Exception("SetWindowsHookEx failed.");
}
}
}
// 卸载钩子
public void KeyMaskStop()
{
bool retKeyboard = true;
if (hKeyboardHook != 0)
{
retKeyboard = UnhookWindowsHookEx(hKeyboardHook);
hKeyboardHook = 0;
}
if (!(retKeyboard))
{
throw new Exception("UnhookWindowsHookEx failed.");
}
}
}
}
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