带有控制台输出的钩子检测

#define _WIN32_WINNT 0x0400
#pragma comment( lib, "user32.lib" )

#include <Windows.h>
#include <conio.h>
#include <stdio.h>
#include <iostream>
#include <string>

using namespace std;

HHOOK hKeyboardHook;
string something1;

__declspec(dllexport) LRESULT CALLBACK KeyboardEvent(int nCode, WPARAM wParam, LPARAM lParam)
{
    DWORD SHIFT_key = 0;
    DWORD CTRL_key = 0;
    DWORD ALT_key = 0;


    if ((nCode == HC_ACTION) && ((wParam == WM_SYSKEYDOWN) || (wParam == WM_KEYDOWN)))
    {
        KBDLLHOOKSTRUCT hooked_key = *((KBDLLHOOKSTRUCT*)lParam);
        DWORD dwMsg = 1;
        dwMsg += hooked_key.scanCode << 16;
        dwMsg += hooked_key.flags << 24;
        char lpszKeyName[1024] = { 0 };
        int i = GetKeyNameText(dwMsg, (lpszKeyName + 1), 0xFF) + 1;
        int key = hooked_key.vkCode;
        if (key == 40)
        {
            cout << "You pressed the Down Arrow Key" << endl;
        }
        

    }
    return CallNextHookEx(hKeyboardHook, nCode, wParam, lParam);
}

void MessageLoop()
{
    MSG message;
    while (GetMessage(&message, NULL, 0, 0))
    {
        TranslateMessage(&message);
        DispatchMessage(&message);
    }
}

DWORD WINAPI my_HotKey(LPVOID lpParm)
{
    HINSTANCE hInstance = GetModuleHandle(NULL);
    if (!hInstance) hInstance = LoadLibrary((LPCSTR)lpParm);
    if (!hInstance) return 1;

    hKeyboardHook = SetWindowsHookEx(WH_KEYBOARD_LL, (HOOKPROC)KeyboardEvent, hInstance, NULL);
    MessageLoop();
    UnhookWindowsHookEx(hKeyboardHook);
    return 0;
}

int main(int argc, char** argv)
{
    HANDLE hThread;
    DWORD dwThread;
    cout << "Type something: ";
    cin>>something1;

    hThread = CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)my_HotKey, (LPVOID)argv[0], NULL, &dwThread);

    /* uncomment to hide console window */
 //ShowWindow(FindWindowA("ConsoleWindowClass", NULL), false);

    if (hThread) return WaitForSingleObject(hThread, INFINITE);
    else return 1;

}
来源：https://www.cnblogs.com/strive-sun/p/11754174.html
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