This is not a over night thing where you do it one day and say oh i learned it and now i can made hacks for games thats coded in C++! Dont work sorry.
First off you want the proper tools:
(I dont know to much about all this)
Memory Hacking software link:
http://memoryhacking.com/download.php
C++ Tutorial:
http://www.cplusplus.com/doc/tutorial/
Microsoft Visuals C++:
(Bata version) http://www.microsoft.com/visualstudio/en-us/products/2010/default.mspx?CR_CC=100253223&WT.mc_id=SEARCH&WT.srch=1&CR_SCC=100253223
C++ Express Edition
http://www.microsoft.com/express/download/#webInstall
Nopepad:
Start>All Programs> Accessories> Notepad
Video Tut:
https://www.youtube.com/user/reconnetworks
Make your own codes or find a old base and work with that if you would like.
Have fun