CURSES_PAD(3)           NetBSD Library Functions Manual          CURSES_PAD(3)

NAME
     curses_pad, newpad, subpad, prefresh, pnoutrefresh -- curses pad routines

LIBRARY
     Curses Library (libcurses, -lcurses)

SYNOPSIS
     #include <curses.h>

     WINDOW *
     newpad(int lines, int cols);

     WINDOW *
     subpad(WINDOW *pad, int lines, int cols, int begin_y, int begin_x);

     int
     prefresh(WINDOW *pad, int pbeg_y, int pbeg_x, int sbeg_y, int sbeg_x,
         int smax_y, int smax_x);

     int
     pnoutrefresh(WINDOW *pad, int pbeg_y, int pbeg_x, int sbeg_y, int sbeg_x,
         int smax_y, int smax_x);

DESCRIPTION
     These functions create and display pads on the current screen.

     The newpad() function creates a new pad of size lines, cols.

     subpad() is similar to newpad() excepting that the size of the subpad is
     bounded by the parent pad pad.  The subpad shares internal data struc-
     tures with the parent pad and will be refreshed when the parent pad is
     refreshed.  The starting column and row begin_y, begin_x are relative to
     the parent pad origin.

     The pnoutrefresh() function performs the internal processing required by
     curses to determine what changes need to be made to synchronise the
     internal screen buffer and the terminal but does not modify the terminal
     display.  A rectangular area of the pad starting at column and row
     pbeg_y, pbeg_x is copied to the corresponding rectangular area of the
     screen buffer starting at column and row sbeg_y, sbeg_x and extending to
     smax_y, smax_x.

     The prefresh() function causes curses to propagate changes made to the
     pad specified by pad to the terminal display.  A rectangular area of the
     pad starting at column and row pbeg_y, pbeg_x is copied to the corre-
     sponding rectangular area of the terminal starting at column and row
     sbeg_y, sbeg_x and extending to smax_y, smax_x.

     The pnoutrefresh() and doupdate() functions can be used together to speed
     up terminal redraws by deferring the actual terminal updates until after
     a batch of updates to multiple pads has been done.

RETURN VALUES
     Functions returning pointers will return NULL if an error is detected.
     The functions that return an int will return one of the following values:

     OK   The function completed successfully.
     ERR  An error occurred in the function.

SEE ALSO
     curses_refresh(3), curses_window(3)

NOTES
     The subpad() function is similar to the derwin(3) function, and not the
     subwin(3) function.

STANDARDS
     The NetBSD Curses library complies with the X/Open Curses specification,
     part of the Single Unix Specification.

HISTORY
     The Curses package appeared in 4.0BSD.

NetBSD 5.0.1                   December 4, 2002                   NetBSD 5.0.1

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