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Non-blocking getch ()

Possible duplicate:
Non-blocking getch (), ncurses

I am trying to make a Tetris game in a standard console. I need a non-blocking getch (), so blocks can fall without pressing any key. It would be nice to have a function that returns -1 if no key is pressed, otherwise key code.

I would be glad if someone could give me a hint or some links.

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2 answers

This operating system is specific, but your library probably has a kbhit () function or similar that will do this

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This is exactly what you wanted:

int getch_noblock() {
    if (_kbhit())
        return _getch();
    else
        return -1;
}

Basically kbhit(), a determination is made whether a key is pressed.

Windows Microsoft Visual ++.

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