keyav

Purpose

Check if keystroke is available.

Format

x = keyav()

Returns:

x (scalar) – value of key or 0 if no key is available.

Example

// Check if a key has been pressed
// (interactive mode only)
k = keyav();
if k;
    print "Key pressed:" k;
else;
    print "No key available.";
endif;

See also

Functions keyw(), key()