mvcur --
output cursor movement commands to the terminal
Synopsis
cc [options] file-lcurses
#include <curses.h>
int mvcur(int oldrow, int oldcol, int newrow, int newcol);
Description
The
mvcur(CURSES)
function outputs one or more commands to the terminal that move the terminal's
cursor to (newrow, newcol), an absolute position
on the terminal screen.
The (oldrow, oldcol) arguments specify the former cursor
position.
Specifying the former position is necessary on terminals that do
not provide coordinate-based movement commands.
On terminals that provide these commands, Curses may select a
more efficient way to move the cursor based on the former position.
If (newrow, newcol) is not a valid address for the
terminal in use,
mvcur(CURSES)
fails.
If (oldrow, oldcol) is the same as (newrow,
newcol), then
mvcur(CURSES)
succeeds without taking any action. If
mvcur(CURSES)
outputs a cursor movement command, it updates its information concerning the
location of the cursor on the terminal.
Return value
Upon successful completion,
mvcur(CURSES)
returns OK.
Otherwise, it returns ERR.
Errors
No errors are defined.
Usage
After use of
mvcur(CURSES),
the model Curses
maintains of the state of the terminal might not match the actual state of the
terminal.
The application should touch and refresh the window before resuming
conventional use of Curses.
Standards Conformance
The Single UNIX Specification, Version 2; The Open Group.