Question

I’m trying to write a plugin for an application and I’m stuck where I need to read the contents from memory and store that in a class. I’ve been given the following:

UserInfo = 0x9F9648 
UserInfoSize = 0x560

That’s the location of where the content is stored and I’ve been given the following class to store it in:

class CUserInfo
{
public:
    __int32 clientNum; //0x0000  
    __int32 Valid; //0x0004  
    char unknown8[4]; //0x0008
    char Name[16]; //0x000C  
    ... and some other properties
};

The problem is that I don’t know how to get the contents from the address location and store it in a class instance.

Anyone any idea how to do that??

Answer 1

You can use reinterpret_cast<> to convert an integer address into a pointer to any needed type, then dereference the pointer.

For example:

CUserInfo user_info;
user_info.clientNum = *(reinterpret_cast<__int32*>(0x9F9648));

Of course this is dangerous practice. You should be aware of access violation and alignment errors when you try to access an arbitrary memory address.