GetInterface (Source Engine)

void* GetInterface( DWORD_PTR dwModule, const char* lpInterfaceName )
{
    CreateInterfaceFn   CreateInterface = ( CreateInterfaceFn )Memory::GetProcAddressHash( dwModule, CREATE_INTERFACE_HASH );
    PVOID               lpReturn        = NULL;
    UINT                i;

    if( !CreateInterface )
        return NULL;

    for( i = 0; i < 999; i++ )
    {
        char lpCurrent[ 1024 ];

        if( i >= 100 )
            sprintf( lpCurrent, "%s%i", lpInterfaceName, i );
        else if( i >= 10 )
            sprintf( lpCurrent, "%s0%i", lpInterfaceName, i );
        else
            sprintf( lpCurrent, "%s00%i", lpInterfaceName, i );

        lpReturn = ( PVOID )CreateInterface( lpCurrent, NULL );

        if( lpReturn )
            break;
    }

    return lpReturn;
}