readline_callback_read_char Reads a character and informs the readline callback interface when a line is received &reftitle.description; voidreadline_callback_read_char Reads a character of user input. When a line is received, this function informs the readline callback interface installed using readline_callback_handler_install that a line is ready for input. &reftitle.returnvalues; &return.void; &reftitle.examples; See readline_callback_handler_install for an example of how to use the readline callback interface. &reftitle.seealso; readline_callback_handler_install readline_callback_handler_remove