#include 
     
      #pragma comment(lib, "User32.lib")HHOOK g_hKeyboard = NULL;#pragma data_seg("MySec")#pragma data_seg()#pragma comment(linker,"/section:MySec,RWS")HHOOK g_Hook;//此处为钩子过程函数，与方案一中的钩子过程函数相同，不再重复，其中函数名改为KeyboardHookProcLRESULT WINAPI KeyboardHookProc(int nCode,WPARAM wParam,LPARAM lParam){    LPKBDLLHOOKSTRUCT pKB = (LPKBDLLHOOKSTRUCT)lParam;    BOOL bKeyToShield = FALSE;    if(nCode == HC_ACTION){        switch(wParam){        case WM_KEYDOWN:        case WM_SYSKEYDOWN:        case WM_KEYUP:        case WM_SYSKEYUP:{            bKeyToShield = (pKB->vkCode == VK_LWIN) || (pKB->vkCode == VK_RWIN)||                    /* win键*/                (pKB->vkCode == VK_ESCAPE)    || (pKB->vkCode == VK_RETURN) ||                    /* esc键*/                ((pKB->vkCode == VK_TAB) && ((pKB->flags & LLKHF_ALTDOWN) != 0))||        /* alt+tab*/                ((pKB->vkCode == VK_ESCAPE) && ((pKB->flags & LLKHF_ALTDOWN) != 0))||        /* alt+esc*/                ((pKB->vkCode == VK_ESCAPE) && ((GetKeyState(VK_CONTROL) & 0x8000) != 0));    /* ctrl+tab*/            break;        }        default:            break;        }    }    return(bKeyToShield?TRUE:CallNextHookEx(g_Hook,nCode,wParam,lParam));}void SetHook()//安装钩子{    g_hKeyboard = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardHookProc, GetModuleHandle(L"KeyboardHook"), 0);    }void UnHook()                //卸载钩子{    UnhookWindowsHookEx(g_hKeyboard);}/******************************************dll END******************************************/