when are characters stored in the Buffer

I just want to know when are characters that sb enter from the keyboard stored in the buffer? I mean : when the character key is pressed, or when enter is pressed, or there is another timing? my question is especially for c++ Consol开发者_运维问答e apps, but it will be even better if the answers contained every case, or a general case!

thanks a lot :)

This will depend on the specific console in question.

Even though they are for different languages, same rules apply to as how the terminal/environment feeds your program with data on standard input:

• How to read a single char from the console in Java (as the user types it)?
• Why can't we read one character at a time from System.in?

This thread supposedly has a working example for Visual Studio.