[c++] D3D-hooking

 
int (__stdcall* EndScene_t)(LPDIRECT3DDEVICE9);
int __stdcall MyEndScene(LPDIRECT3DDEVICE9);
bool bDataCompare(const BYTE* pData, const BYTE* bMask, const char* szMask)
{
	for(;*szMask;++szMask,++pData,++bMask)
		if(*szMask=='x' && *pData!=*bMask )
			return false;
	return (*szMask) == NULL;
}
DWORD dwFindPattern(DWORD dwAddress,DWORD dwLen,BYTE *bMask,char * szMask)
{
	for(DWORD i=0; i < dwLen; i++)
	{
		if( bDataCompare( (BYTE*)( dwAddress+i ),bMask,szMask) )
			return (DWORD)(dwAddress+i);
	}
	return 0;
}
void hookd3d()
{
	HMODULE hModule = NULL;
	while(!hModule)
	{
		hModule = GetModuleHandleA("d3d9.dll") ;
		Sleep(100) ;
	}
 
	DWORD* vmt = 0 ;
	DWORD FoundPattern = dwFindPattern((DWORD)hModule,0x128000,(PBYTE)"\xC7\x06\x00\x00\x00\x00\x89\x86\x00\x00\x00\x00\x89\x86","xx????xx????xx") ;
 
	vmt = (DWORD*)(FoundPattern+2); // &vmt[42] enthält die Addy der EndScene-Funktion
DetourFunction((PBYTE)&vmt[42],(PBYTE)MyEndScene);
}