Moved from ports with several enhancements

1 files changed, 41 insertions, 0 deletions

diff --git a/lib/libncurses/curs_overlay.3 b/lib/libncurses/curs_overlay.3
new file mode 100644
index 0000000..bc9723a3
--- /dev/null
+++ b/lib/libncurses/curs_overlay.3
@@ -0,0 +1,41 @@
+.TH curs_overlay 3X ""
+.SH NAME
+\fBcurs_overlay\fR: \fBoverlay\fR, \fBoverwrite\fR, \fBcopywin\fR - overlay and
+manipulate overlapped \fBncurses\fR windows
+.SH SYNOPSIS
+\fB#include <ncurses.h>\fR
+
+\fBint overlay(WINDOW *srcwin, WINDOW *dstwin);\fR
+.br
+\fBint overwrite(WINDOW *srcwin, WINDOW *dstwin);\fR
+.br
+\fBint copywin(WINDOW *srcwin, WINDOW *dstwin, int sminrow,
+      int smincol, int dminrow, int dmincol, int dmaxrow,
+      int dmaxcol, int overlay);\fR
+.SH DESCRIPTION
+The \fBoverlay\fR and \fBoverwrite\fR routines overlay \fIsrcwin\fR on
+top of \fIdstwin\fR.  \fIscrwin\fR and \fIdstwin\fR are not required
+to be the same size; only text where the two windows overlap is
+copied.  The difference is that \fBoverlay\fR is non-destructive
+(blanks are not copied) whereas \fBoverwrite\fR is destructive.
+
+The \fBcopywin\fR routine provides a finer granularity of control over the
+\fBoverlay\fR and \fBoverwrite\fR routines.  Like in the \fBprefresh\fR
+routine, a rectangle is specified in the destination window, (\fIdminrow\fR,
+\fIdmincol\fR) and (\fIdmaxrow\fR, \fIdmaxcol\fR), and the upper-left-corner
+coordinates of the source window, (\fIsminrow\fR, \fIsmincol\fR).  If the
+argument \fIoverlay\fR is \fBtrue\fR, then copying is non-destructive, as in
+\fBoverlay\fR.
+.SH RETURN VALUE
+Routines that return an integer return \fBERR\fR upon failure and an integer
+value other than \fBERR\fR upon successful completion.
+.SH NOTES
+Note that \fBoverlay\fR and \fBoverwrite\fR may be macros.
+.SH SEE ALSO
+\fBncurses\fR(3X), \fBcurs_pad\fR(3X), \fBcurs_refresh\fR(3X)
+.\"#
+.\"# The following sets edit modes for GNU EMACS
+.\"# Local Variables:
+.\"# mode:nroff
+.\"# fill-column:79
+.\"# End: