mvderwin(3curses)

mvderwin -- define window coordinate transformation

Synopsis

cc [options] file -lcurses

#include <curses.h>

int mvderwin(WINDOW *win, int par_y, int par_x);

Description

The mvderwin(3curses) function specifies a mapping of characters. The function identifies a mapped area of the parent of the specified window, whose size is the same as the size of the specified window and whose origin is at (par_y, par_x) of the parent window.

During any refresh of the specified window, the characters displayed in that window's display area of the terminal are taken from the mapped area.
Any references to characters in the specified window obtain or modify characters in the mapped area.

That is, mvderwin(3curses) defines a coordinate transformation from each position in the mapped area to a corresponding position (same y, x offset from the origin) in the specified window.

Return value

Upon successful completion, mvderwin(3curses) returns OK. Otherwise, it returns ERR.

Errors

No errors are defined.

Standards Conformance

The Single UNIX Specification, Version 2; The Open Group.

References

derwin(3curses), doupdate(3curses), dupwin(3curses), curses(4)