So when you see So when you see Pro-Action-Replay] in the Cheat Dialog Note section, you know that means its a Pro Action Replay Code can just be enabled and used right away, not like the Game Genie that has to be enabled either before the game is loaded or the game reset (F1) after it is enabled. The Pro Action Replay Cheat Codes are in Hex which allow the codes to take effect immediately as they modify the Memory not the ROM, so they don't need to be injected into the game before the game is loaded or reset like the Game Genie Codes do.
So when you see in the Cheat Dialog Note section, you know that means its a Game Genie Code that needs to be enabled either before the game is loaded or the game reset (F1) after it is enabled. The Game Genie Cheat Codes are encrypted and have to be loaded into the game for the code to take effect as they Modify the ROM not the memory. The reason for this is very simple and will be useful for you to know this information. as i am only using windows, i think it could be the file wsnes9x.cpp, line 8769 (SendDlgItemMessage(hDlg, IDCCHEATDESCRIPTION, EMLIMITTEXT, CHEATSIZE, 0) there i should add the column.
The cheat file database is done in such a way that you can tell the difference between Game Genie and Pro Action Replay Codes.