copywin man page on DigitalUNIX

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curs_overlay(3)						       curs_overlay(3)

       curs_overlay,  copywin,	overlay,  overwrite  -	Overlap and manipulate
       overlapped Curses windows

       #include <curses.h>

       int overlay(
	       const WINDOW *srcwin,
	       WINDOW *dstwin ); int overwrite(
	       const WINDOW *srcwin,
	       WINDOW *dstwin ); int copywin(
	       const WINDOW *srcwin,
	       WINDOW *dstwin,
	       int sminrow,
	       int smincol,
	       int dminrow,
	       int dmincol,
	       int dmaxrow,
	       int dmaxcol,
	       int overlay );

       Curses Library (libcurses)

       Interfaces documented on this reference page conform to industry	 stan‐
       dards as follows:

       copywin, overlay, overwrite:  XCURSES4.2

       Refer  to  the  standards(5)  reference page for more information about
       industry standards and associated tags.

       The overlay and overwrite routines overlay srcwin  on  top  of  dstwin.
       The  scrwin  and	 dstwin	 parameters  do	 not have to be the same size;
       Curses copies only the text in the region where the two	windows	 over‐
       lap. The difference between the routines is that overlay is nondestruc‐
       tive (blanks are not copied), whereas overwrite is destructive.

       The copywin routine provides a finer granularity of  control  over  the
       same  operation	performed  by overlay and overwrite. Like the prefresh
       routine, copywin specifies  a  rectangle	 in  the  destination  window,
       (dminrow,  dmincol)  and	 (dmaxrow, dmaxcol), and the upper-left-corner
       coordinates of the source window, (sminrow, smincol). If	 the  argument
       overlay is true, then copying is nondestructive, as is the case for the
       overlay function.

       The header file	<curses.h>  automatically  includes  the  header  file

       These  routines	return ERR upon failure and OK upon successful comple‐

       Functions: curses(3), curs_pad(3), curs_refresh(3)

       Others: standards(5)


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