curs_insch - Online Linux Manual PageSection : 3X
Updated :

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NAMEinsch, winsch, mvinsch, mvwinsch − insert a character before cursor in a curses window

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SYNOPSIS#include <curses.h> int insch(chtype ch);
int winsch(WINDOW *win, chtype ch); int mvinsch(int y, int x, chtype ch);
int mvwinsch(WINDOW *win, int y, int x, chtype ch);

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DESCRIPTIONThese routines insert the character ch before the character under the cursor. All characters to the right of the cursor are moved one space to the right, with the possibility of the rightmost character on the line being lost. The insertion operation does not change the cursor position.

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RETURN VALUEAll routines that return an integer return ERR upon failure and OK (SVr4 specifies only "an integer value other than ERR") upon successful completion, unless otherwise noted in the preceding routine descriptions. 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.

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NOTESThese routines do not necessarily imply use of a hardware insert character feature. Note that insch, mvinsch, and mvwinsch may be macros.

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PORTABILITYThese functions are described in the XSI Curses standard, Issue 4.

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SEE ALSOcurses(3X). Comparable functions in the wide-character (ncursesw) library are described in curs_ins_wch(3X). 0

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