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RedHat 9 (Linux i386) - man page for flushinp (redhat section 3X)

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curs_util(3X)									    curs_util(3X)

       delay_output,  filter, flushinp, getwin, key_name, keyname, putwin, unctrl, use_env, wunc-
       trl - miscellaneous curses utility routines

       #include <curses.h>

       char *unctrl(chtype c);
       char *wunctrl(wchar_t w);
       char *keyname(int c);
       char *key_name(wchar_t w);
       void filter(void);
       void use_env(bool f);
       int putwin(WINDOW *win, FILE *filep);
       WINDOW *getwin(FILE *filep);
       int delay_output(int ms);
       int flushinp(void);

       The unctrl routine returns a character string which is a printable representation  of  the
       character  c,  ignoring	attributes.  Control characters are displayed in the ^X notation.
       Printing characters are displayed as is.  The corresponding wunctrl  returns  a	printable
       representation of a wide-character.

       The  keyname routine returns a character string corresponding to the key c.  Control char-
       acters are displayed in the ^X notation.  Values above 128  are	either	meta  characters,
       shown  in  the  M-X  notation,  or the names of function keys, or null.	The corresponding
       key_name returns a character string corresponding to the wide-character value w.  The  two
       functions  do not return the same set of strings; the latter returns null where the former
       would display a meta character.

       The filter routine, if used, must be called before initscr or  newterm  are  called.   The
       effect  is  that, during those calls, LINES is set to 1; the capabilities clear, cup, cud,
       cud1, cuu1, cuu, vpa are disabled; and the home string is set to the value of cr.

       The use_env routine, if used, is called before initscr or newterm are called.  When called
       with FALSE as an argument, the values of lines and columns specified in the terminfo data-
       base will be used, even if environment variables LINES and COLUMNS (used by  default)  are
       set,  or  if curses is running in a window (in which case default behavior would be to use
       the window size if LINES and COLUMNS are not set).

       The putwin routine writes all data associated with window win into the file to which filep
       points.	This information can be later retrieved using the getwin function.

       The  getwin  routine  reads window related data stored in the file by putwin.  The routine
       then creates and initializes a new window using that data.  It returns a  pointer  to  the
       new window.

       The  delay_output  routine inserts an ms millisecond pause in output.  This routine should
       not be used extensively because padding characters are used rather than a CPU  pause.   If
       no padding character is specified, this uses napms to perform the delay.

       The flushinp routine throws away any typeahead that has been typed by the user and has not
       yet been read by the program.

       Except for flushinp, routines that return an integer return ERR upon failure and OK  (SVr4
       specifies only "an integer value other than ERR") upon successful completion.

       flushinp always returns OK.

       Routines that return pointers return NULL on error.

       The  XSI  Curses  standard,  Issue 4 describes these functions.	It states that unctrl and
       wunctrl will return a null pointer if unsuccessful, but does not define any  error  condi-

       The  SVr4  documentation  describes  the  action of filter only in the vaguest terms.  The
       description here is adapted from the XSI  Curses  standard  (which  erroneously	fails  to
       describe the disabling of cuu).

       curses(3X), curs_initscr(3X), curs_kernel(3X), curs_scr_dump(3X).

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