Re: std::cin and disabling canonical line processing (buffering)

Harold Bamford wrote:
I would like to read from cin one character at a time (eg, cin.get(thisChar) or the like) and not have to wait for the user to enter a carriage return.

On Unix or Cygwin, I would use tcgetattr/tcsetattr to turn off buffering and echoing on file descriptor 0 (STDIN) but this doesn't seem to be available in VC++ 7.1

What's the trick? 

You could try something along these lines:

#include <windows.h>
#include <iostream>

int main()
{
    HANDLE inputHandle = GetStdHandle(STD_INPUT_HANDLE);
    BOOL b = SetConsoleMode(inputHandle, 0);

    char c;
    while(std::cin.get(c))
    {
        if (c == 'x')
            break;
        std::cout << c << " typed" << std::endl;
    }
}

Also, look at the rest of the Console functions, which you might prefer to deal with directly.

Tom
.

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