#include <windows.h>
HHOOK g_hKeyBoard;
//底層鍵盤系統調用，過濾alt + tab
LRESULT CALLBACK KeyBoardProc(int code, WPARAM wParam, LPARAM lParam)
{
if (code == HC_ACTION)
{
PKBDLLHOOKSTRUCT p;
switch (wParam)
{
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
case WM_KEYUP:
case WM_SYSKEYUP:
p = (PKBDLLHOOKSTRUCT)lParam;
if ((p->vkCode == VK_TAB) && ((p->flags & LLKHF_ALTDOWN) != 0) )
{
return 1;
}
break;
}
}
return ::CallNextHookEx(g_hKeyBoard, code, wParam, lParam);
}
//註冊全局hook
void SetHook()
{
g_hKeyBoard = SetWindowsHookEx(WH_KEYBOARD_LL, KeyBoardProc, GetModuleHandle(L"Hook"), 0);
}
//註銷全局hook
void UnSetHook()
{
if (g_hKeyBoard)
UnhookWindowsHookEx(g_hKeyBoard);
g_hKeyBoard = NULL;
}