There are a TON of tutorials teaching C++ but I can't seem to find any good tutorials that specifically teach memory coding in C++. Tutorials that go into ReadProcessMemory, WriteProcessMemory, dllimport, dllexport, etc.
The reading and writing memory functions are not necessarily easy. You need a base address, a handle to the window (i think) and some other parameters. Just start learning windows programming and it will come to you.
Yea I somewhat know how to modify memory. I would need IDA, CheatEngine, or something similar to figure out what addresses hold what information and then ReadProcessMemory() to fetch the values or WriteProcessMemory() to modify them.
I've even used this to make small little programs that modify some games (minesweeper, minecraft, checkers, etc.) The problem is I have been learning very slowly by just reading other peoples source codes, I'm looking for a tutorial or book that really goes in depth.