Internal Hack Menu

// dllmain.cpp : Defines the entry point for the DLL application.
#include "pch.h"

#include <iostream>

#include <d3d9.h>
#include <d3dx9.h>

#pragma comment(lib, "d3d9.lib")
#pragma comment(lib, "d3dx9.lib")

#include "detours.h"
#pragma comment(lib, "detours.lib")


HINSTANCE DllHandle;

typedef HRESULT(__stdcall* endScene)(IDirect3DDevice9* pDevice);
endScene pEndScene;

LPD3DXFONT font;

HRESULT __stdcall hookedEndScene(IDirect3DDevice9* pDevice) {
    //now here we can create our own graphics
    int padding = 2;
    int rectx1 = 100, rectx2 = 300, recty1 = 50, recty2 = 100;
    D3DRECT rectangle = { rectx1, recty1, rectx2, recty2 };
    pDevice->Clear(1, &rectangle, D3DCLEAR_TARGET, D3DCOLOR_ARGB(255, 0, 0, 0), 0.0f, 0); // this draws a rectangle
    if (!font)
        D3DXCreateFont(pDevice, 16, 0, FW_BOLD, 1, 0, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, "Arial", &font);
    RECT textRectangle;
    SetRect(&textRectangle, rectx1 + padding, recty1 + padding, rectx2 - padding, recty2 - padding);
    font->DrawText(NULL, "Press Numpad0 to Exit", -1, &textRectangle, DT_NOCLIP | DT_LEFT, D3DCOLOR_ARGB(255, 153, 255, 153)); //draw text;
    return pEndScene(pDevice); // call original endScene
}

void hookEndScene() {
    IDirect3D9* pD3D = Direct3DCreate9(D3D_SDK_VERSION); // create IDirect3D9 object
    if (!pD3D)
        return;

    D3DPRESENT_PARAMETERS d3dparams = { 0 };
    d3dparams.SwapEffect = D3DSWAPEFFECT_DISCARD;
    d3dparams.hDeviceWindow = GetForegroundWindow();
    d3dparams.Windowed = true;

    IDirect3DDevice9* pDevice = nullptr;

    HRESULT result =  pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, d3dparams.hDeviceWindow, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dparams, &pDevice);
    if (FAILED(result) || !pDevice) {
        pD3D->Release();
        return;
    }
    //if device creation worked out -> lets get the virtual table:
    void** vTable = *reinterpret_cast<void***>(pDevice);

    //now detour:

    pEndScene = (endScene)DetourFunction((PBYTE)vTable[42],(PBYTE)hookedEndScene);

    pDevice->Release();
    pD3D->Release();
}


DWORD __stdcall EjectThread(LPVOID lpParameter) {
    Sleep(100);
    FreeLibraryAndExitThread(DllHandle, 0);
    return 0;
}

DWORD WINAPI Menue(HINSTANCE hModule) {
    AllocConsole();
    FILE* fp;
    freopen_s(&fp, "CONOUT$", "w", stdout); //sets cout to be used with our newly created console

    hookEndScene();

    while (true) {
        Sleep(50);
        if (GetAsyncKeyState(VK_NUMPAD0)) {
            DetourRemove((PBYTE)pEndScene, (PBYTE)hookedEndScene); //unhook to avoid game crash
            break;
        }
    }
    std::cout << "ight imma head out" << std::endl;
    Sleep(1000);
    fclose(fp);
    FreeConsole();
    CreateThread(0, 0, EjectThread, 0, 0, 0);
    return 0;
}

BOOL APIENTRY DllMain( HMODULE hModule, DWORD  ul_reason_for_call,LPVOID lpReserved)
{
    switch (ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
        DllHandle = hModule;
        CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)Menue, NULL, 0, NULL);
    case DLL_THREAD_ATTACH:
    case DLL_THREAD_DETACH:
    case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}