XINPUT1_4 proxy dll injection

main.cpp

#pragma comment(linker, "/EXPORT:XInputGetState=XInputGetState,@2")

#include <Windows.h>

#ifdef __cplusplus
extern "C" {
#endif

HINSTANCE s_instance = NULL;
struct XINPUT_STATE {};
struct XINPUT_CAPABILITIES {};

typedef DWORD(WINAPI* f_XInputGetState)(DWORD, XINPUT_STATE*);
f_XInputGetState s_XInputGetState = NULL;

typedef DWORD(WINAPI* f_XInputGetCapabilities)(DWORD, DWORD, XINPUT_CAPABILITIES*);
f_XInputGetCapabilities s_XInputGetCapabilities = NULL;

void load()
{
    WCHAR path[MAX_PATH];
    GetSystemDirectoryW(path, MAX_PATH);
    wcscat_s(path, L"\\XInput1_4.dll");
    s_instance = LoadLibraryW(path);

    if (!s_instance)
        return;

    s_XInputGetState = (f_XInputGetState)(GetProcAddress(s_instance, "XInputGetState"));
    s_XInputGetCapabilities = (f_XInputGetCapabilities)(GetProcAddress(s_instance, "XInputGetCapabilities"));
}

__declspec(dllexport)
DWORD WINAPI XInputGetState(DWORD dwUserIndex, XINPUT_STATE* pState)
{
    if (!s_XInputGetState)
        load();

    return s_XInputGetState(dwUserIndex, pState);
}

__declspec(dllexport)
DWORD WINAPI XInputGetCapabilities(DWORD dwUserIndex, DWORD dwFlags, XINPUT_CAPABILITIES* pCapabilities)
{
    if (!s_XInputGetCapabilities)
        load();

    return s_XInputGetCapabilities(dwUserIndex, dwFlags, pCapabilities);
}

DWORD WINAPI MainThread(LPVOID lpParam)
{
    AllocConsole();

    LoadLibrary(L"hackpro.dll");

    return S_OK;
}

BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
{
    switch (dwReason)
    {
    case DLL_PROCESS_ATTACH:
        CreateThread(NULL, 0x1000000, &MainThread, NULL, 0, NULL);
        break;

    default:
        break;
    }

    return TRUE;
}

#ifdef __cplusplus
}
#endif