Memory fix

[audetto]

ImageInfo must be initialised by calling its c++ constructor (as it contains std::string).

In VS it seems to work (by chance?), in g++ it fails.
C++ standard requires the constructor anyway.

[audetto]

I think there is a more elegant way to handle this but it requires a newer c++.

struct AStruct
{
    int a_number = {};
    double another = {};
};

[audetto]

I've removed VirtualAlloc and simplified the code. Nothing else to push on this branch.

IMHO, it is ready to be merged.