Re: Check for a keypress

["David Hamill" <david@...>]

On Fri, 29 Nov 2013, Jose Torre-Bueno wrote:
> Is there a way from inside Lua to check whether any key has been
> pressed?  io.read() will get a line from the console but if there
> is no input it pends waiting for input.  I would like to be able
> to write a test that gets input if any is ready but would continue
> if there is none.  It is not obvious to me if this can be done at all.

Because this depends on the keyboard hardware (Apple/Windows/Linux, number 
of keys, layout, country etc)and also on how the OS handles the keyboard at 
a low level (buffering, key code mapping etc), there's unlikely to be a 
single solution that will work across all platforms.

For a single platform, the best solution is probably to revert to C and make 
the relevant API calls.

David