удалить символ под курсором в окне curses (delete character under the cursor in a curses window)
Имя (Name)
delch
, wdelch
, mvdelch
, mvwdelch
- delete character under the
cursor in a curses
window
Синопсис (Synopsis)
#include <curses.h>
int delch(void);
int wdelch(WINDOW *
win);
int mvdelch(int
y, int
x);
int mvwdelch(WINDOW *
win, int
y, int
x);
Описание (Description)
These routines delete the character under the cursor; all
characters to the right of the cursor on the same line are moved
to the left one position and the last character on the line is
filled with a blank. The cursor position does not change (after
moving to y, x, if specified). (This does not imply use of the
hardware delete character feature.)
Возвращаемое значение (Return value)
All routines return the integer ERR
upon failure and an OK
(SVr4
specifies only "an integer value other than ERR
") upon successful
completion.
Functions with a 'mv' prefix first perform a cursor movement
using wmove
, and return an error if the position is outside the
window, or if the window pointer is null.
Примечание (Note)
Note that delch
, mvdelch
, and mvwdelch
may be macros.
Портативность (Portability)
These functions are described in the XSI Curses standard, Issue
4. The standard specifies that they return ERR
on failure, but
specifies no error conditions.
Смотри также (See also)
curses
(3X)