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8.32. SysGetKey


>>-SysGetKey(-+-----+-)----------------------------------------><
              +-opt-+

Reads and returns the next key from the keyboard buffer. If the keyboard buffer is empty, SysGetKey waits until a key is pressed. Unlike the CHARIN built-in function, SysGetKey does not wait until the Enter key is pressed.
Parameter:
opt
An option controlling screen echoing. Allowed values are:
"ECHO"
Echo the pressed key to the screen. This is the default.
"NOECHO"
Do not echo the pressed key.