New D3D Hook & Wireframe Example

#include <Windows.h>

#pragma region D3D Stuff Here

void Derp()
{ 
	IDirect3DVertexBuffer9* pStreamData = NULL;
              UINT pOffsetInBytes , pStride;
              pDevice->GetStreamSource(0,&pStreamData,&pOffsetInBytes,&pStride);

	if (pStride == 24 || pStride == 28)//Wireframe Example
	{
                  pDevice->SetRenderState(D3DRS_FILLMODE,D3DFILL_WIREFRAME);
	}
}

#pragma endregion

#pragma region Mem Scanner/Detour/Hook
bool Compare(const BYTE* pData, const BYTE* bMaskara, const char* szMaskara)
{
	for(;*szMaskara;++szMaskara,++pData,++bMaskara)
		if(*szMaskara=='x' && *pData!=*bMaskara ) 
			return false;
	return (*szMaskara) == NULL;
}
DWORD FindPattern(DWORD dwAddress,DWORD dwLen,BYTE *bMask,char * szMask)
{
	 for (DWORD x = 0; x < dwLen; x++)
		if( Compare( ( BYTE * )( dwAddress + x ), bMask, szMask ) )  
		return ( DWORD )( dwAddress + x );
	return 0;
}
void Detour(BYTE *pAddress, DWORD dwJumpTo, DWORD dwLen)
{
    DWORD dwOldProtect, dwBkup, dwRelAddr;
    VirtualProtect(pAddress, dwLen, PAGE_EXECUTE_READWRITE, &dwOldProtect);
    dwRelAddr = (DWORD) (dwJumpTo - (DWORD) pAddress) - 5;
    *pAddress = 0xE9;
    *((DWORD *)(pAddress + 1)) = dwRelAddr;
    for(DWORD x = 0x5; x < dwLen; x++) *(pAddress + x) = 0x90;
    VirtualProtect(pAddress, dwLen, dwOldProtect, &dwBkup);    
}
__declspec( naked )VOID MidHook()
{
	__asm
	{
		MOV EDI,[EBP+10h]
		MOV EAX, DWORD PTR SS:[EBP + 8]
		MOV DWORD PTR DS:[pDevice], EAX
		CALL Derp
		CMP EDI,20h
		JMP NxtInst
	}
}
#pragma endregion

#pragma region Storage
LPDIRECT3DDEVICE9 pDevice;
DWORD NxtInst;
#pragma endregion

#pragma region Find Address

DWORD GetD3D()
{
	//No Windows 8 or xp byte pattern. I dont have access to those OS...
    DWORD hD3D = (DWORD)GetModuleHandle("d3d9");
  	//Windows 7 Scan d3d9.dll+EEFA
	DWORD DIPD3D9;
	if ((DIPD3D9 = FindPattern(hD3D,0x128000,( PBYTE )"\x8B\x7D\x10\x83\xFF\x20","xxxxxx")))
	{
       NxtInst = DIPD3D9 + 6;
       return DIPD3D9;
	}
  return 0;
}

#pragma endregion

#pragma region DllMain/Thread

void Hooker()
{
	while (GetModuleHandle("d3d9") == NULL)
	Sleep(10);
	DWORD DIPD3D9;
	if (DIPD3D9 = GetD3D()) Detour((PBYTE)DIPD3D9, (DWORD)MidHook, 6);
}

BOOL WINAPI DllMain(HMODULE dHandle, DWORD nReason, LPVOID Reserved)
{
	if(nReason == DLL_PROCESS_ATTACH)
	{
		DisableThreadLibraryCalls(dHandle);
		CreateThread(NULL, NULL, (LPTHREAD_START_ROUTINE)Hooker, NULL, NULL, NULL);
	}
	return TRUE;
}

#pragma endregion