insch, winsch, mvinsch, mvwinsch - insert a
character before cursor in a curses window
int insch(chtype ch);
int winsch(WINDOW *win, chtype ch);
int mvinsch(int y, int x, chtype
These 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.
All 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
int mvwinsch(WINDOW *win, int y, int
x , chtype ch);
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.
These routines do not necessarily imply use of a hardware insert character
Note that insch, mvinsch, and mvwinsch may be
These functions are described in the XSI Curses standard, Issue 4.