overlay.3cur

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· 3CUR 代码 · 共 49 行

.TH overlay 3cur 
.SH Name
overlay, overwrite \- overlay windows
.SH Syntax
.br
.B
#include <cursesX.h>
.PP
.br
.B
int overlay(srcwin, dstwin)
.br
.B
WINDOW \(**srcwin, \(**dstwin;
.PP
.B
int overwrite(srcwin, dstwin)
.br
.B
WINDOW \(**srcwin, \(**dstwin;
.SH Description
.NXR "overlay subroutine"
.NXR "overwrite subroutine"
The 
.PN overlay
routine copies all the text from the source window
.PN srcwin
on top of the destination window
.PN dstwin .
The two windows are not required to be the same size.
The copy starts at (0, 0) on both windows.
The copy is non-destructive, 
so blanks are not copied.
.PP
The 
.PN overwrite 
routine copies all of 
.PN srcwin
on top of 
.PN destwin .
The copy starts at (0, 0) on both windows.
This is a destructive copy as blanks are copied.
.SH Return Values
The 
.PN overlay
and
.PN overwrite
functions return OK on success and ERR on error.