ncursesw-morphos/man/curs_delch.3x
Thomas E. Dickey 9bb12d03d8 ncurses 5.7 - patch 20100814
+ document in manpages that "mv" functions first use wmove() to check
  the window pointer and whether the position lies within the window
  (suggested by Poul-Henning Kamp).
+ fixes to curs_color.3x, curs_kernel.3x and wresize.3x manpages (patch
  by Tim van der Molen).
+ modify configure script to transform library names for tic- and
  tinfo-libraries so that those build properly with Mac OS X shared
  library configuration.
+ modify configure script to ensure that it removes conftest.dSYM
  directory leftover on checks with Mac OS X.
+ modify configure script to cleanup after check for symbolic links.
2010-08-15 00:45:51 +00:00

75 lines
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.\"***************************************************************************
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.\" $Id: curs_delch.3x,v 1.10 2010/08/14 23:29:16 tom Exp $
.TH curs_delch 3X ""
.SH NAME
\fBdelch\fR,
\fBwdelch\fR,
\fBmvdelch\fR,
\fBmvwdelch\fR \- delete character under the cursor in a \fBcurses\fR window
.SH SYNOPSIS
\fB#include <curses.h>\fR
.sp
\fBint delch(void);\fR
.br
\fBint wdelch(WINDOW *win);\fR
.br
\fBint mvdelch(int y, int x);\fR
.br
\fBint mvwdelch(WINDOW *win, int y, int x);\fR
.br
.SH 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 \fIy\fR, \fIx\fR, if specified). (This does not
imply use of the hardware delete character feature.)
.SH RETURN VALUE
All routines return the integer \fBERR\fR upon failure and an \fBOK\fR (SVr4
specifies only "an integer value other than \fBERR\fR") upon successful
completion.
.PP
Functions with a "mv" prefix first perform a cursor movement using
\fBwmove\fP, and return an error if the position is outside the window,
or if the window pointer is null.
.SH NOTES
Note that \fBdelch\fR, \fBmvdelch\fR, and \fBmvwdelch\fR may be macros.
.SH PORTABILITY
These functions are described in the XSI Curses standard, Issue 4. The
standard specifies that they return \fBERR\fR on failure, but specifies no
error conditions.
.SH SEE ALSO
\fBcurses\fR(3X)
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