Simple unblocked readkey.

[LP]

On Windows you can also use GetAsyncKeyState to get the state of a specific key using one of VK_[xxx] virtual codes and even detect whether the key has been pressed or not previously.

[User137]

I would save readKey in a variable, because it is a complicated function? No reason to call it twice.

[pitfiend]

as far as i remember, readkey removes the key pressed from the buffer. if you press a special key, it will put 2 chars in the buffer: a #0 char and another char. the sequencial call to readkey will catch them. but i think this will not allow to have multiple keypress, as the buffer is very short, only 16 chars (at least in dos/windows i think). unless you manage to extend that buffer.

[sixten]

I would save readKey in a variable, because it is a complicated function? No reason to call it twice.

It's called a second time to catch the scancode.