Detour VTable Share Full Hook

[LeHaxzor]

This is the hook I use to create my Chams.

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

#include <Windows.h>
#include <d3d9.h>
#include <d3dx9.h>
#include <iostream>
#include <fstream>
#include <detours.h>
#include <stdio.h>
#include <vector>
#include "d3d9types.h"

using namespace std;

#define HOOK(func,addy)	o##func = (t##func)DetourFunction((PBYTE)addy,(PBYTE)hk##func)
#define D3D_RELEASE(D3D_PTR) if( D3D_PTR ){ D3D_PTR->Release(); D3D_PTR = NULL; }
#define ES	0
#define DIP	1
#define RES 2
DWORD VTable[3] = { 0 };

DWORD WINAPI FindWin(LPVOID);
DWORD D3DEndScene;
DWORD D3DReset;
DWORD D3DDrawIndexedPrimitive;
DWORD WINAPI VirtualMethodTableRepatchingLoopToCounterExtensionRepatching(LPVOID);
PDWORD Direct3D_VMTable = NULL;



BYTE CodeFragmentES[5] = { 0, 0, 0, 0, 0 };
BYTE CodeFragmentR[5] = { 0, 0, 0, 0, 0 };
BYTE CodeFragmentDIP[5] = { 0, 0, 0, 0, 0 };

HRESULT WINAPI Direct3DCreate9_VMTable(VOID);
HRESULT WINAPI hkReset(LPDIRECT3DDEVICE9, D3DPRESENT_PARAMETERS*);
typedef HRESULT(WINAPI* tEndScene)(LPDIRECT3DDEVICE9 LeHaxzor);
typedef HRESULT(WINAPI* DrawIndexedPrimitive_)(LPDIRECT3DDEVICE9 Device, D3DPRIMITIVETYPE Type, INT BaseVertexIndex, UINT MinIndex, UINT NumVertices, UINT StartIndex, UINT PrimitiveCount);
typedef HRESULT(WINAPI* tDrawIndexedPrimitive)(LPDIRECT3DDEVICE9 LeHaxzor, D3DPRIMITIVETYPE PrimType, INT BaseVertexIndex, UINT MinIndex, UINT NumVertices, UINT StartIndex, UINT PrimitiveCount);
typedef HRESULT(WINAPI* tReset)(LPDIRECT3DDEVICE9, D3DPRESENT_PARAMETERS*);
tReset oReset;
DrawIndexedPrimitive_ oDrawIndexedPrimitive = NULL;
tEndScene oEndScene;



DWORD FindDevice(DWORD Len)
{
	DWORD dwObjBase = 0;

	dwObjBase = (DWORD)LoadLibrary("d3d9.dll");
	while (dwObjBase++ < dwObjBase + Len)
	{
		if ((*(WORD*)(dwObjBase + 0x00)) == 0x06C7
			&& (*(WORD*)(dwObjBase + 0x06)) == 0x8689
			&& (*(WORD*)(dwObjBase + 0x0C)) == 0x8689
			) {
			dwObjBase += 2; break;
		}
	}
	return(dwObjBase);
}

DWORD GetDeviceAddress(int VTableIndex)
{
	PDWORD VTable;
	*(DWORD*)&VTable = *(DWORD*)FindDevice(0x128000);
	return VTable[VTableIndex];
}

HRESULT WINAPI hkDrawIndexedPrimitive(LPDIRECT3DDEVICE9 LeHaxzor, D3DPRIMITIVETYPE PrimType, INT BaseVertexIndex, UINT MinIndex, UINT NumVertices, UINT StartIndex, UINT PrimitiveCount)
{
	//DIP
	return oDrawIndexedPrimitive(LeHaxzor, PrimType, BaseVertexIndex, MinIndex, NumVertices, StartIndex, PrimitiveCount);
}

HRESULT WINAPI hkReset(LPDIRECT3DDEVICE9 LeHaxzor, D3DPRESENT_PARAMETERS* PresP)
{
	//Reset
	return oReset(LeHaxzor, PresP);
}

HRESULT WINAPI hkEndScene(LPDIRECT3DDEVICE9 LeHaxzor)
{
	return oEndScene(LeHaxzor);
}


LRESULT CALLBACK MsgProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	return DefWindowProc(hwnd, uMsg, wParam, lParam); 
}
void DX_Init(DWORD* table)
{
	WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L, GetModuleHandle(NULL), NULL, NULL, NULL, NULL, "DX", NULL };
	RegisterClassEx(&wc);
	HWND hWnd = CreateWindow("DX", NULL, WS_OVERLAPPEDWINDOW, 100, 100, 300, 300, GetDesktopWindow(), NULL, wc.hInstance, NULL);
	LPDIRECT3D9 pD3D = Direct3DCreate9(D3D_SDK_VERSION);
	D3DPRESENT_PARAMETERS d3dpp;
	ZeroMemory(&d3dpp, sizeof(d3dpp));
	d3dpp.Windowed = TRUE;
	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
	d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
	LPDIRECT3DDEVICE9 pd3dDevice;
	pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &pd3dDevice);
	DWORD* pVTable = (DWORD*)pd3dDevice;
	pVTable = (DWORD*)pVTable[0];

	table[ES] = pVTable[42];
	table[DIP] = pVTable[82];
	table[RES] = pVTable[16];

	DestroyWindow(hWnd);
}

//Hook
DWORD WINAPI MyThread(LPVOID)
{
	while (GetModuleHandle("d3d9.dll") == NULL) {
		Sleep(250);
	}

	DX_Init(VTable);

	HOOK(EndScene, VTable[ES]);
	HOOK(DrawIndexedPrimitive, VTable[DIP]);
	HOOK(Reset, VTable[RES]);

	return 0;
}

BOOL WINAPI DllMain(HMODULE hModule, DWORD dwReason, LPVOID lpvReserved)
{
	if (dwReason == DLL_PROCESS_ATTACH) {

		CreateThread(0, 0, MyThread, 0, 0, 0);
	}

	return TRUE;
}