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   [Windows API] Keyboard Hooking

http://www.hackerschool.org/HS_Boards/zboard.php?id=Free_Lectures&no=8584 [º¹»ç]



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ÈÄÅ· °­Á¸¦ ½áº»´Ù.

Win32¿¡¼­ ÈÄÅ·Àº ¿î¿µÃ¼Á¦ÀÇ ¾ÖÇø®ÄÉÀ̼ǿ¡¼­ ¹ß»ýÇÏ´Â
À̺¥Æ®³ª ÇÔ¼ö¸¦ È£ÃâÀ» °¡·Îä´Â ±â¹ýÀ» ¸»ÇÑ´Ù.

SetWindowHookEx API¸¦ »ç¿ëÇÏ¿© ÈÄÅ·À» ¼³Á¤ÇÒ ¼ö ÀÖÀ¸¸ç,
ÀÌ ¶§ »ç¿ëµÇ´Â ÈÄÅ· Á¾·ù´Â
WH_KEYBOARD, WH_MOUSE, WH_CALLWNDPROCµîÀÌ ÀÖ´Ù.

À©µµ¿ì¿¡¼­ ÇÒ ¼ö ÀÖ´Â °£´ÜÇÑ ÈÄÅ· ÇÁ·Î±×·¥ Äڵ带 ¿¹½Ã·Î µé°Ú´Ù.




=============== ½ÃÀÛ ===============
#include <windows.h>
#include <stdio.h>

// Űº¸µå ÈÄÅ© »ó¼ö Á¤ÀÇ
#define WH_KEYBOARD_LL 13
#define WM_KEYDOWN 0x0100
#define WM_KEYUP 0x0101

#pragma comment(lib, "user32.lib")

LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam);
HHOOK SetKeyboardHook();
void RemoveKeyboardHook(HHOOK hook);

int main(void)
{
    printf("TEST!\n");
    HHOOK hook = SetKeyboardHook();  // Űº¸µå ÈÄÅ© ¼³Á¤

    // ¸Þ½ÃÁö ·çÇÁ
    MSG msg;
    printf("GetMessage È£ÃâµÊ\n");
    while (GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    // ÈÄÅ© Á¦°Å
    RemoveKeyboardHook(hook);
    return 0;
}

// ÈÄÅ·µÈ Űº¸µå À̺¥Æ®¸¦ ó¸®ÇÒ Äݹé ÇÔ¼ö
LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{
    if (nCode == HC_ACTION) {  // ÈÄÅ·ÀÌ Á¤»óÀûÀ¸·Î µ¿ÀÛÇßÀ» ¶§
        KBDLLHOOKSTRUCT* keyInfo = (KBDLLHOOKSTRUCT*)lParam;
        if (wParam == WM_KEYDOWN) {
            printf("۰¡ ´­·È½À´Ï´Ù: %c\n", keyInfo->vkCode);  // °¡»óŰ ÄÚµå Ãâ·Â
        }
        else if (wParam == WM_KEYUP) {
            printf("۰¡ ¶¼¾îÁ³½À´Ï´Ù: %c\n", keyInfo->vkCode);  // °¡»óŰ ÄÚµå Ãâ·Â
        }
    }
    // ÈÄÅ© üÀο¡ ´ÙÀ½ ÈÄÅ©¸¦ Àü´Þ
    return CallNextHookEx(NULL, nCode, wParam, lParam);
}

// ÈÄÅ©¸¦ ¼³Á¤ÇÏ´Â ÇÔ¼ö
HHOOK SetKeyboardHook()
{
    HHOOK hook = SetWindowsHookEx(WH_KEYBOARD_LL, KeyboardProc, GetModuleHandle(NULL), 0);
    if (hook == NULL) {
        printf("ÈÄÅ© ¼³Á¤ ½ÇÆÐ\n");
    }
    else {
        printf("Űº¸µå ÈÄÅ©°¡ ¼³Á¤µÇ¾ú½À´Ï´Ù.\n");
    }
    return hook;
}

// ÈÄÅ©¸¦ Á¦°ÅÇÏ´Â ÇÔ¼ö
void RemoveKeyboardHook(HHOOK hook)
{
    if (hook != NULL) {
        UnhookWindowsHookEx(hook);
        printf("ÈÄÅ©°¡ ÇØÁ¦µÇ¾ú½À´Ï´Ù.\n");
    }
}

=============== ³¡ ===============







»ç½Ç ³î¶ó¿î °Ô 'ÀÛ¾÷ °ü¸®ÀÚ'¿¡¼­ ÇÁ·Î¼¼½º°¡ ÀâÈ÷Áö ¾Ê¾Ò´Ù.
(Windows 10 Pro¿¡¼­ ½ÇÇàÇÏ¿´´Ù...)
Process Explorer¿¡¼­´Â ÀâÇûÁö¸¸...
Process Explorer¿¡¼­µµ ÀâÈ÷Áö ¾Ê´Â ¹æ¹ýÀÌ... ÀÖÀ»±î...? ¤¾¤¾

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