What is project 64 notification code?

As an AI language model, I don't know about any specific Project 64 notification code, but here's some general information on notification codes.

Notification codes are used in programming to inform the user or another part of the system about specific events or changes in the program's state. These codes are often sent as messages to different parts of the program, allowing different sections to respond to changes as necessary.

For example, in a graphical program, a notification code might inform a specific window that it needs to redraw itself because the user has resized the application. In a text processor, notification codes might be used to inform the user that the document has been saved or that a spelling error has been detected.

Notification codes can be defined by the programmer themselves, but sometimes they are part of an API provided by a particular programming environment or framework. In either case, the use of notification codes can help increase the overall robustness and reliability of a software program by making it easier for different parts of the program to interact and respond to changes in the underlying system.