ncurses-6.3HEADncurses-6.3master

31 files changed, 764 insertions, 249 deletions

diff --git a/include/Caps b/include/Caps
index af0ec45..7bc00ea 100644
--- a/include/Caps
+++ b/include/Caps
@@ -1,5 +1,5 @@
 ##############################################################################
-# Copyright 2019,2020 Thomas E. Dickey                                       #
+# Copyright 2019-2020,2021 Thomas E. Dickey                                  #
 # Copyright 1998-2015,2016 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -30,7 +30,7 @@
 # Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995
 #    and: Eric S. Raymond <esr@snark.thyrsus.com>
 #
-# $Id: Caps,v 1.45 2020/02/02 23:34:34 tom Exp $
+# $Id: Caps,v 1.48 2021/10/08 07:55:48 tom Exp $
 #
 # This is the master termcap/terminfo capability table.
 #
@@ -58,7 +58,7 @@
 #
 # The codes following [Y-] in column 7 describe the versions of termcap which
 # use the given capability.  This information is not used by the curses library
-# proper; rather, it's there to help the terminfo maintainer avoid emitting
+# proper; rather, it is there to help the terminfo maintainer avoid emitting
 # termcap entry translations that are more than 1023 bytes long (and tank a
 # lot of old termcap-using programs).  The codes read as follows:
 #	B = mentioned in the BSD man page for 4.4BSD curses
@@ -98,8 +98,8 @@
 # 3. List it in the standard table.  You almost certainly do *not* want
 # to do this -- the capabilities in that one, and their order, have been
 # carefully chosen to be SVr4-binary-compatible when they're written out
-# as a terminfo object, and breaking this would be bad.  It's up to the ncurses
-# library what to do with the terminfo data after it's read in.
+# as a terminfo object, and breaking this would be bad.  It is up to the ncurses
+# library what to do with the terminfo data after it is read in.
 #
 # 4. List it in the aliases table with an IGNORE target field.  If you
 # do this, the capability will be ignored on input (though the user will
@@ -108,7 +108,7 @@
 # 5. List it in the extensions table. If you do this, the compiler will
 # silently accept the capability, but the curses library proper will never
 # see it (because it won't be written out as part of the terminfo object
-# format).  It's up to you what you have the compiler do with it.
+# format).  It is up to you what you have the compiler do with it.
 #
 # There are two opposite reasons to choose option 5.  One is when you want
 # to eat the capability silently and discard it when doing translations
@@ -189,8 +189,12 @@
 #%indicates that padding may be specified
 #%.TP
 #%#[1-9]
-#%in the description field indicates that the string is passed through tparm with
-#%parms as given (#\fIi\fP).
+#%in the description field indicates that the string is passed
+#%through \fBtparm\fP(3X) with parameters as given (#\fIi\fP).
+#%.IP
+#%If no parameters are listed in the description,
+#%passing the string through \fBtparm\fP(3X) may give unexpected results,
+#%e.g., if it contains percent (%%) signs.
 #%.TP
 #%(P*)
 #%indicates that padding may vary in proportion to the number of
@@ -597,7 +601,7 @@ key_f62				kf62	str	Fq	KEY_F(62)	-	----E	F62 function key
 key_f63				kf63	str	Fr	KEY_F(63)	-	----E	F63 function key
 clr_bol				el1	str	cb	-		-	-----	Clear to beginning of line
 clear_margins			mgc	str	MC	-		-	-----	clear right and left soft margins
-set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 See smgl. (ML is not in BSD termcap).
+set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 (ML is not in BSD termcap).
 set_right_margin		smgr	str	MR	-		-	-----	set right soft margin at current column
 label_format			fln	str	Lf	-		-	-----	label format
 set_clock			sclk	str	SC	-		-	-----	set clock, #1 hrs #2 mins #3 secs
@@ -879,7 +883,7 @@ has_hardware_tabs		OTpt	bool	pt	-		-	YB---	has 8-char tabs invoked with ^I
 return_does_clr_eol		OTxr	bool	xr	-		-	YB---	return clears the line
 # tek_4025_insert_line		OTxx	bool	xx	-		-	-BC--	Tektronix 4025 insert-line glitch
 #
-# mytinfo described this as a termcap capability, but it's not listed in the
+# mytinfo described this as a termcap capability, but it is not listed in the
 # 4.4BSD man pages, and not found in the 4.4BSD termcap file.  The ncurses
 # package, like System V, behaves as though it is always true.
 #
diff --git a/include/Caps-ncurses b/include/Caps-ncurses
index a1aef0d..d8c8bac 100644
--- a/include/Caps-ncurses
+++ b/include/Caps-ncurses
@@ -28,7 +28,7 @@
 #
 # Author: Thomas E. Dickey
 #
-# $Id: Caps-ncurses,v 1.8 2020/02/02 23:34:34 tom Exp $
+# $Id: Caps-ncurses,v 1.10 2020/09/29 19:05:19 tom Exp $
 #
 #############################################################################
 #
@@ -342,6 +342,7 @@ infoalias	ksel	kslt	IBM	key_select
 # are not listed here.
 #
 used_by ncurses
+userdef	CO 	num	n	number of indexed colors overlaying RGB space
 userdef	E3	str	-	clears the terminal's scrollback buffer.
 userdef	RGB	bool	-	use direct colors with 1/3 of color-pair bits per color.
 userdef	RGB	num	n	use direct colors with given number of bits per color.
@@ -361,6 +362,15 @@ userdef	xm	str	nnnsnn	mouse response, p6 = x-ordinate starting region
 userdef	xm	str	nnnsnnn	mouse response, p7 = y-ordinate ending region
 userdef	xm	str	nnnsnnnn mouse response, p8 = x-ordinate ending region
 #
+used_by mintty
+userdef Rmol	str	-	remove overline-mode
+userdef Smol	str	-	set overline-mode
+userdef blink2	str	-	turn on rapid blinking
+userdef norm	str	-	turn off bold and half-bright mode
+userdef opaq	str	-	turn off blank mode
+userdef	setal	str	n	set underline-color
+userdef smul2	str	-	begin double underline mode
+#
 used_by screen
 userdef	AN	bool	-	turn on autonuke.
 userdef	AX	bool	-	understands ANSI set default fg/bg color (\E[39m / \E[49m).
diff --git a/include/Caps.aix4 b/include/Caps.aix4
index 100489c..ee9f2cf 100644
--- a/include/Caps.aix4
+++ b/include/Caps.aix4
@@ -1,5 +1,5 @@
 ##############################################################################
-# Copyright 2019,2020 Thomas E. Dickey                                       #
+# Copyright 2019-2020,2021 Thomas E. Dickey                                  #
 # Copyright 2001-2015,2016 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -29,7 +29,7 @@
 #
 # Author: Thomas Dickey
 #
-# $Id: Caps.aix4,v 1.17 2020/02/02 23:34:34 tom Exp $
+# $Id: Caps.aix4,v 1.20 2021/10/08 07:55:48 tom Exp $
 #
 # This is an adaptation of ncurses' termcap/terminfo capability table, which
 # is designed to align with AIX 4.x's terminfo.
@@ -58,7 +58,7 @@
 #
 # The codes following [Y-] in column 7 describe the versions of termcap which
 # use the given capability.  This information is not used by the curses library
-# proper; rather, it's there to help the terminfo maintainer avoid emitting
+# proper; rather, it is there to help the terminfo maintainer avoid emitting
 # termcap entry translations that are more than 1023 bytes long (and tank a
 # lot of old termcap-using programs).  The codes read as follows:
 #	B = mentioned in the BSD man page for 4.4BSD curses
@@ -98,8 +98,8 @@
 # 3. List it in the standard table.  You almost certainly do *not* want
 # to do this -- the capabilities in that one, and their order, have been
 # carefully chosen to be SVr4-binary-compatible when they're written out
-# as a terminfo object, and breaking this would be bad.  It's up to the ncurses
-# library what to do with the terminfo data after it's read in.
+# as a terminfo object, and breaking this would be bad.  It is up to the ncurses
+# library what to do with the terminfo data after it is read in.
 #
 # 4. List it in the aliases table with an IGNORE target field.  If you
 # do this, the capability will be ignored on input (though the user will
@@ -108,7 +108,7 @@
 # 5. List it in the extensions table. If you do this, the compiler will
 # silently accept the capability, but the curses library proper will never
 # see it (because it won't be written out as part of the terminfo object
-# format).  It's up to you what you have the compiler do with it.
+# format).  It is up to you what you have the compiler do with it.
 #
 # There are two opposite reasons to choose option 5.  One is when you want
 # to eat the capability silently and discard it when doing translations
@@ -189,8 +189,12 @@
 #%indicates that padding may be specified
 #%.TP
 #%#[1-9]
-#%in the description field indicates that the string is passed through tparm with
-#%parms as given (#\fIi\fP).
+#%in the description field indicates that the string is passed
+#%through \fBtparm\fP(3X) with parameters as given (#\fIi\fP).
+#%.IP
+#%If no parameters are listed in the description,
+#%passing the string through \fBtparm\fP(3X) may give unexpected results,
+#%e.g., if it contains percent (%%) signs.
 #%.TP
 #%(P*)
 #%indicates that padding may vary in proportion to the number of
@@ -699,7 +703,7 @@ key_sundo			kUND	str	!3	KEY_SUNDO	0626	-----	shifted undo key
 req_for_input			rfi	str	RF	-		-	-----	send next input char (for ptys)
 clr_bol				el1	str	cb	-		-	-----	Clear to beginning of line
 clear_margins			mgc	str	MC	-		-	-----	clear right and left soft margins
-set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 See smgl. (ML is not in BSD termcap).
+set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 (ML is not in BSD termcap).
 set_right_margin		smgr	str	MR	-		-	-----	set right soft margin at current column
 label_format			fln	str	Lf	-		-	-----	label format
 set_clock			sclk	str	SC	-		-	-----	set clock, #1 hrs #2 mins #3 secs
@@ -981,7 +985,7 @@ has_hardware_tabs		OTpt	bool	pt	-		-	YB---	has 8-char tabs invoked with ^I
 return_does_clr_eol		OTxr	bool	xr	-		-	YB---	return clears the line
 # tek_4025_insert_line		OTxx	bool	xx	-		-	-BC--	Tektronix 4025 insert-line glitch
 #
-# mytinfo described this as a termcap capability, but it's not listed in the
+# mytinfo described this as a termcap capability, but it is not listed in the
 # 4.4BSD man pages, and not found in the 4.4BSD termcap file.  The ncurses
 # package, like System V, behaves as though it is always true.
 #
diff --git a/include/Caps.hpux11 b/include/Caps.hpux11
index e028224..3c0444f 100644
--- a/include/Caps.hpux11
+++ b/include/Caps.hpux11
@@ -1,5 +1,5 @@
 ##############################################################################
-# Copyright 2019,2020 Thomas E. Dickey                                       #
+# Copyright 2019-2020,2021 Thomas E. Dickey                                  #
 # Copyright 2002-2015,2016 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -29,7 +29,7 @@
 #
 # Author: Thomas Dickey
 #
-# $Id: Caps.hpux11,v 1.15 2020/02/02 23:34:34 tom Exp $
+# $Id: Caps.hpux11,v 1.18 2021/10/08 07:55:48 tom Exp $
 #
 # This is an adaptation of ncurses' termcap/terminfo capability table, which
 # is designed to align with HPUX 11.x's terminfo.
@@ -58,7 +58,7 @@
 #
 # The codes following [Y-] in column 7 describe the versions of termcap which
 # use the given capability.  This information is not used by the curses library
-# proper; rather, it's there to help the terminfo maintainer avoid emitting
+# proper; rather, it is there to help the terminfo maintainer avoid emitting
 # termcap entry translations that are more than 1023 bytes long (and tank a
 # lot of old termcap-using programs).  The codes read as follows:
 #	B = mentioned in the BSD man page for 4.4BSD curses
@@ -98,8 +98,8 @@
 # 3. List it in the standard table.  You almost certainly do *not* want
 # to do this -- the capabilities in that one, and their order, have been
 # carefully chosen to be SVr4-binary-compatible when they're written out
-# as a terminfo object, and breaking this would be bad.  It's up to the ncurses
-# library what to do with the terminfo data after it's read in.
+# as a terminfo object, and breaking this would be bad.  It is up to the ncurses
+# library what to do with the terminfo data after it is read in.
 #
 # 4. List it in the aliases table with an IGNORE target field.  If you
 # do this, the capability will be ignored on input (though the user will
@@ -108,7 +108,7 @@
 # 5. List it in the extensions table. If you do this, the compiler will
 # silently accept the capability, but the curses library proper will never
 # see it (because it won't be written out as part of the terminfo object
-# format).  It's up to you what you have the compiler do with it.
+# format).  It is up to you what you have the compiler do with it.
 #
 # There are two opposite reasons to choose option 5.  One is when you want
 # to eat the capability silently and discard it when doing translations
@@ -189,8 +189,12 @@
 #%indicates that padding may be specified
 #%.TP
 #%#[1-9]
-#%in the description field indicates that the string is passed through tparm with
-#%parms as given (#\fIi\fP).
+#%in the description field indicates that the string is passed
+#%through \fBtparm\fP(3X) with parameters as given (#\fIi\fP).
+#%.IP
+#%If no parameters are listed in the description,
+#%passing the string through \fBtparm\fP(3X) may give unexpected results,
+#%e.g., if it contains percent (%%) signs.
 #%.TP
 #%(P*)
 #%indicates that padding may vary in proportion to the number of
@@ -605,7 +609,7 @@ key_sundo			kUND	str	!3	KEY_SUNDO	0626	-----	shifted undo key
 req_for_input			rfi	str	RF	-		-	-----	send next input char (for ptys)
 clr_bol				el1	str	cb	-		-	-----	Clear to beginning of line
 clear_margins			mgc	str	MC	-		-	-----	clear right and left soft margins
-set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 See smgl. (ML is not in BSD termcap).
+set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 (ML is not in BSD termcap).
 set_right_margin		smgr	str	MR	-		-	-----	set right soft margin at current column
 label_format			fln	str	Lf	-		-	-----	label format
 set_clock			sclk	str	SC	-		-	-----	set clock, #1 hrs #2 mins #3 secs
@@ -895,7 +899,7 @@ has_hardware_tabs		OTpt	bool	pt	-		-	YB---	has 8-char tabs invoked with ^I
 return_does_clr_eol		OTxr	bool	xr	-		-	YB---	return clears the line
 # tek_4025_insert_line		OTxx	bool	xx	-		-	-BC--	Tektronix 4025 insert-line glitch
 #
-# mytinfo described this as a termcap capability, but it's not listed in the
+# mytinfo described this as a termcap capability, but it is not listed in the
 # 4.4BSD man pages, and not found in the 4.4BSD termcap file.  The ncurses
 # package, like System V, behaves as though it is always true.
 #
diff --git a/include/Caps.keys b/include/Caps.keys
index 6b03964..09d7a47 100644
--- a/include/Caps.keys
+++ b/include/Caps.keys
@@ -1,5 +1,5 @@
 ##############################################################################
-# Copyright 2019,2020 Thomas E. Dickey                                       #
+# Copyright 2019-2020,2021 Thomas E. Dickey                                  #
 # Copyright 2001-2015,2016 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -30,7 +30,7 @@
 # Author: Thomas Dickey
 #    and: Ilya Zakharevich
 #
-# $Id: Caps.keys,v 1.14 2020/02/02 23:34:34 tom Exp $
+# $Id: Caps.keys,v 1.17 2021/10/08 07:55:48 tom Exp $
 #
 # This is an adaptation of ncurses' termcap/terminfo capability table, which
 # is illustrates an experimental extension to describe alt-, shift- and
@@ -60,7 +60,7 @@
 #
 # The codes following [Y-] in column 7 describe the versions of termcap which
 # use the given capability.  This information is not used by the curses library
-# proper; rather, it's there to help the terminfo maintainer avoid emitting
+# proper; rather, it is there to help the terminfo maintainer avoid emitting
 # termcap entry translations that are more than 1023 bytes long (and tank a
 # lot of old termcap-using programs).  The codes read as follows:
 #	B = mentioned in the BSD man page for 4.4BSD curses
@@ -100,8 +100,8 @@
 # 3. List it in the standard table.  You almost certainly do *not* want
 # to do this -- the capabilities in that one, and their order, have been
 # carefully chosen to be SVr4-binary-compatible when they're written out
-# as a terminfo object, and breaking this would be bad.  It's up to the ncurses
-# library what to do with the terminfo data after it's read in.
+# as a terminfo object, and breaking this would be bad.  It is up to the ncurses
+# library what to do with the terminfo data after it is read in.
 #
 # 4. List it in the aliases table with an IGNORE target field.  If you
 # do this, the capability will be ignored on input (though the user will
@@ -110,7 +110,7 @@
 # 5. List it in the extensions table. If you do this, the compiler will
 # silently accept the capability, but the curses library proper will never
 # see it (because it won't be written out as part of the terminfo object
-# format).  It's up to you what you have the compiler do with it.
+# format).  It is up to you what you have the compiler do with it.
 #
 # There are two opposite reasons to choose option 5.  One is when you want
 # to eat the capability silently and discard it when doing translations
@@ -191,8 +191,12 @@
 #%indicates that padding may be specified
 #%.TP
 #%#[1-9]
-#%in the description field indicates that the string is passed through tparm with
-#%parms as given (#\fIi\fP).
+#%in the description field indicates that the string is passed
+#%through \fBtparm\fP(3X) with parameters as given (#\fIi\fP).
+#%.IP
+#%If no parameters are listed in the description,
+#%passing the string through \fBtparm\fP(3X) may give unexpected results,
+#%e.g., if it contains percent (%%) signs.
 #%.TP
 #%(P*)
 #%indicates that padding may vary in proportion to the number of
@@ -599,7 +603,7 @@ key_f62				kf62	str	Fq	KEY_F(62)	-	----E	F62 function key
 key_f63				kf63	str	Fr	KEY_F(63)	-	----E	F63 function key
 clr_bol				el1	str	cb	-		-	-----	Clear to beginning of line
 clear_margins			mgc	str	MC	-		-	-----	clear right and left soft margins
-set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 See smgl. (ML is not in BSD termcap).
+set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 (ML is not in BSD termcap).
 set_right_margin		smgr	str	MR	-		-	-----	set right soft margin at current column
 label_format			fln	str	Lf	-		-	-----	label format
 set_clock			sclk	str	SC	-		-	-----	set clock, #1 hrs #2 mins #3 secs
@@ -969,7 +973,7 @@ has_hardware_tabs		OTpt	bool	pt	-		-	YB---	has 8-char tabs invoked with ^I
 return_does_clr_eol		OTxr	bool	xr	-		-	YB---	return clears the line
 # tek_4025_insert_line		OTxx	bool	xx	-		-	-BC--	Tektronix 4025 insert-line glitch
 #
-# mytinfo described this as a termcap capability, but it's not listed in the
+# mytinfo described this as a termcap capability, but it is not listed in the
 # 4.4BSD man pages, and not found in the 4.4BSD termcap file.  The ncurses
 # package, like System V, behaves as though it is always true.
 #
diff --git a/include/Caps.osf1r5 b/include/Caps.osf1r5
index 9499183..beb71c3 100644
--- a/include/Caps.osf1r5
+++ b/include/Caps.osf1r5
@@ -1,5 +1,5 @@
 ##############################################################################
-# Copyright 2019,2020 Thomas E. Dickey                                       #
+# Copyright 2019-2020,2021 Thomas E. Dickey                                  #
 # Copyright 2002-2015,2016 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -29,7 +29,7 @@
 #
 # Author: Thomas Dickey
 #
-# $Id: Caps.osf1r5,v 1.13 2020/02/02 23:34:34 tom Exp $
+# $Id: Caps.osf1r5,v 1.16 2021/10/08 07:55:48 tom Exp $
 #
 # This is an adaptation of ncurses' termcap/terminfo capability table, which
 # is designed to align with OSF/1 version 5 (Tru64) terminfo.
@@ -58,7 +58,7 @@
 #
 # The codes following [Y-] in column 7 describe the versions of termcap which
 # use the given capability.  This information is not used by the curses library
-# proper; rather, it's there to help the terminfo maintainer avoid emitting
+# proper; rather, it is there to help the terminfo maintainer avoid emitting
 # termcap entry translations that are more than 1023 bytes long (and tank a
 # lot of old termcap-using programs).  The codes read as follows:
 #	B = mentioned in the BSD man page for 4.4BSD curses
@@ -98,8 +98,8 @@
 # 3. List it in the standard table.  You almost certainly do *not* want
 # to do this -- the capabilities in that one, and their order, have been
 # carefully chosen to be SVr4-binary-compatible when they're written out
-# as a terminfo object, and breaking this would be bad.  It's up to the ncurses
-# library what to do with the terminfo data after it's read in.
+# as a terminfo object, and breaking this would be bad.  It is up to the ncurses
+# library what to do with the terminfo data after it is read in.
 #
 # 4. List it in the aliases table with an IGNORE target field.  If you
 # do this, the capability will be ignored on input (though the user will
@@ -108,7 +108,7 @@
 # 5. List it in the extensions table. If you do this, the compiler will
 # silently accept the capability, but the curses library proper will never
 # see it (because it won't be written out as part of the terminfo object
-# format).  It's up to you what you have the compiler do with it.
+# format).  It is up to you what you have the compiler do with it.
 #
 # There are two opposite reasons to choose option 5.  One is when you want
 # to eat the capability silently and discard it when doing translations
@@ -189,8 +189,12 @@
 #%indicates that padding may be specified
 #%.TP
 #%#[1-9]
-#%in the description field indicates that the string is passed through tparm with
-#%parms as given (#\fIi\fP).
+#%in the description field indicates that the string is passed
+#%through \fBtparm\fP(3X) with parameters as given (#\fIi\fP).
+#%.IP
+#%If no parameters are listed in the description,
+#%passing the string through \fBtparm\fP(3X) may give unexpected results,
+#%e.g., if it contains percent (%%) signs.
 #%.TP
 #%(P*)
 #%indicates that padding may vary in proportion to the number of
@@ -739,7 +743,7 @@ set_clock			sclk	str	SC	-		-	-----	set clock, #1 hrs #2 mins #3 secs
 set_color_band		setcolor	str	Yz	-		-	-----	Change to ribbon color #1
 set_color_pair			scp	str	sp	-		-	-----	Set current color pair to #1
 set_foreground			setf	str	Sf	-		-	-----	Set foreground color #1
-set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 See smgl. (ML is not in BSD termcap).
+set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 (ML is not in BSD termcap).
 set_left_margin_parm		smglp	str	Zm	-		-	-----	Set left (right) margin at column #1
 set_lr_margin			smglr	str	ML	-		-	-----	Set both left and right margins to #1, #2.  (ML is not in BSD termcap).
 set_page_length			slines	str	YZ	-		-	-----	Set page length to #1 lines
@@ -887,7 +891,7 @@ has_hardware_tabs		OTpt	bool	pt	-		-	YB---	has 8-char tabs invoked with ^I
 return_does_clr_eol		OTxr	bool	xr	-		-	YB---	return clears the line
 # tek_4025_insert_line		OTxx	bool	xx	-		-	-BC--	Tektronix 4025 insert-line glitch
 #
-# mytinfo described this as a termcap capability, but it's not listed in the
+# mytinfo described this as a termcap capability, but it is not listed in the
 # 4.4BSD man pages, and not found in the 4.4BSD termcap file.  The ncurses
 # package, like System V, behaves as though it is always true.
 #
diff --git a/include/Caps.uwin b/include/Caps.uwin
index 7628bd4..af47de9 100644
--- a/include/Caps.uwin
+++ b/include/Caps.uwin
@@ -1,5 +1,5 @@
 ##############################################################################
-# Copyright 2019,2020 Thomas E. Dickey                                       #
+# Copyright 2019-2020,2021 Thomas E. Dickey                                  #
 # Copyright 2001-2015,2016 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -29,7 +29,7 @@
 #
 # Author: Thomas Dickey
 #
-# $Id: Caps.uwin,v 1.12 2020/02/02 23:34:34 tom Exp $
+# $Id: Caps.uwin,v 1.15 2021/10/08 07:55:48 tom Exp $
 #
 # This is an adaptation of ncurses' termcap/terminfo capability table, which
 # is designed to align with U/Win's terminfo.
@@ -58,7 +58,7 @@
 #
 # The codes following [Y-] in column 7 describe the versions of termcap which
 # use the given capability.  This information is not used by the curses library
-# proper; rather, it's there to help the terminfo maintainer avoid emitting
+# proper; rather, it is there to help the terminfo maintainer avoid emitting
 # termcap entry translations that are more than 1023 bytes long (and tank a
 # lot of old termcap-using programs).  The codes read as follows:
 #	B = mentioned in the BSD man page for 4.4BSD curses
@@ -98,8 +98,8 @@
 # 3. List it in the standard table.  You almost certainly do *not* want
 # to do this -- the capabilities in that one, and their order, have been
 # carefully chosen to be SVr4-binary-compatible when they're written out
-# as a terminfo object, and breaking this would be bad.  It's up to the ncurses
-# library what to do with the terminfo data after it's read in.
+# as a terminfo object, and breaking this would be bad.  It is up to the ncurses
+# library what to do with the terminfo data after it is read in.
 #
 # 4. List it in the aliases table with an IGNORE target field.  If you
 # do this, the capability will be ignored on input (though the user will
@@ -108,7 +108,7 @@
 # 5. List it in the extensions table. If you do this, the compiler will
 # silently accept the capability, but the curses library proper will never
 # see it (because it won't be written out as part of the terminfo object
-# format).  It's up to you what you have the compiler do with it.
+# format).  It is up to you what you have the compiler do with it.
 #
 # There are two opposite reasons to choose option 5.  One is when you want
 # to eat the capability silently and discard it when doing translations
@@ -189,8 +189,12 @@
 #%indicates that padding may be specified
 #%.TP
 #%#[1-9]
-#%in the description field indicates that the string is passed through tparm with
-#%parms as given (#\fIi\fP).
+#%in the description field indicates that the string is passed
+#%through \fBtparm\fP(3X) with parameters as given (#\fIi\fP).
+#%.IP
+#%If no parameters are listed in the description,
+#%passing the string through \fBtparm\fP(3X) may give unexpected results,
+#%e.g., if it contains percent (%%) signs.
 #%.TP
 #%(P*)
 #%indicates that padding may vary in proportion to the number of
@@ -565,7 +569,7 @@ key_f62				kf62	str	Fq	KEY_F(62)	-	----E	F62 function key
 key_f63				kf63	str	Fr	KEY_F(63)	-	----E	F63 function key
 clr_bol				el1	str	cb	-		-	-----	Clear to beginning of line
 clear_margins			mgc	str	MC	-		-	-----	clear right and left soft margins
-set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 See smgl. (ML is not in BSD termcap).
+set_left_margin			smgl	str	ML	-		-	-----	set left soft margin at current column.	 (ML is not in BSD termcap).
 set_right_margin		smgr	str	MR	-		-	-----	set right soft margin at current column
 device_type			devt	str	dv	-		-	-----	Indicate language/codeset support
 code_set_init			csin	str	ci	-		-	-----	Init sequence for multiple codesets
@@ -703,7 +707,7 @@ has_hardware_tabs		OTpt	bool	pt	-		-	YB---	has 8-char tabs invoked with ^I
 return_does_clr_eol		OTxr	bool	xr	-		-	YB---	return clears the line
 # tek_4025_insert_line		OTxx	bool	xx	-		-	-BC--	Tektronix 4025 insert-line glitch
 #
-# mytinfo described this as a termcap capability, but it's not listed in the
+# mytinfo described this as a termcap capability, but it is not listed in the
 # 4.4BSD man pages, and not found in the 4.4BSD termcap file.  The ncurses
 # package, like System V, behaves as though it is always true.
 #
diff --git a/include/MKkey_defs.sh b/include/MKkey_defs.sh
index 865a7b9..86d6891 100755
--- a/include/MKkey_defs.sh
+++ b/include/MKkey_defs.sh
@@ -1,5 +1,5 @@
 #! /bin/sh
-# $Id: MKkey_defs.sh,v 1.19 2020/02/02 23:34:34 tom Exp $
+# $Id: MKkey_defs.sh,v 1.21 2020/08/17 10:45:33 tom Exp $
 ##############################################################################
 # Copyright 2019,2020 Thomas E. Dickey                                       #
 # Copyright 2001-2013,2017 Free Software Foundation, Inc.                    #
@@ -63,8 +63,7 @@ fi
 
 # add keys that we generate automatically:
 cat >>$data <<EOF
-key_resize	kr1	str	R1	KEY_RESIZE	+	-----	Terminal resize event
-key_event	kv1	str	V1	KEY_EVENT	+	-----	We were interrupted by an event
+key_resize	kr1	str	R1	KEY_RESIZE	+	NCURSES_EXT_FUNCS 	Terminal resize event
 EOF
 
 THIS=./`basename $0`
@@ -142,6 +141,12 @@ $5 != "-" && $6 != "-" {
 			maxkey = thiskey;
 		if (pass == 2 || pass == 3) {
 			showkey=sprintf(octal_fmt, thiskey);
+			ifdef = 0;
+			if (index($7,"NCURSES_") == 1) {
+				ifdef = 1;
+				printf "\n";
+				printf "#ifdef %s\n", $7;
+			}
 			if ($5 == "KEY_F(0)" ) {
 				printf "#define "
 				print_cols("KEY_F0", 16);
@@ -160,6 +165,9 @@ $5 != "-" && $6 != "-" {
 					printf " %s", $i
 				print " */"
 			}
+			if (ifdef != 0) {
+				printf "#endif\n";
+			}
 		}
 	}
 END	{
diff --git a/include/MKterm.h.awk.in b/include/MKterm.h.awk.in
index ee4e2b4..e79840d 100644
--- a/include/MKterm.h.awk.in
+++ b/include/MKterm.h.awk.in
@@ -26,7 +26,7 @@ BEGIN {
 	lcurl = "{";
 	rcurl = "}";
 	print  "/****************************************************************************"
-	print  " * Copyright 2018-2019,2020 Thomas E. Dickey                                *"
+	print  " * Copyright 2018-2020,2021 Thomas E. Dickey                                *"
 	print  " * Copyright 1998-2013,2017 Free Software Foundation, Inc.                  *"
 	print  " *                                                                          *"
 	print  " * Permission is hereby granted, free of charge, to any person obtaining a  *"
@@ -60,7 +60,7 @@ BEGIN {
 	print  "/*    and: Thomas E. Dickey                        1995-on                  */"
 	print  "/****************************************************************************/"
 	print  ""
-	print  "/* $Id: MKterm.h.awk.in,v 1.74 2020/02/02 23:34:34 tom Exp $ */"
+	print  "/* $Id: MKterm.h.awk.in,v 1.82 2021/09/24 17:02:46 tom Exp $ */"
 	print  ""
 	print  "/*"
 	print  "**	term.h -- Definition of struct term"
@@ -82,6 +82,24 @@ BEGIN {
 	print  " * definition (based on the system for which this was configured)."
 	print  " */"
 	print  ""
+	print  "#ifndef __NCURSES_H"
+	print  ""
+	print  "typedef struct screen  SCREEN;"
+	print  ""
+	print  "#if @NCURSES_SP_FUNCS@"
+	print  "#undef  NCURSES_SP_FUNCS"
+	print  "#define NCURSES_SP_FUNCS @NCURSES_PATCH@"
+	print  "#undef  NCURSES_SP_NAME"
+	print  "#define NCURSES_SP_NAME(name) name##_sp"
+	print  ""
+	print  "/* Define the sp-funcs helper function */"
+	print  "#undef  NCURSES_SP_OUTC"
+	print  "#define NCURSES_SP_OUTC NCURSES_SP_NAME(NCURSES_OUTC)"
+	print  "typedef int (*NCURSES_SP_OUTC)(SCREEN*, int);"
+	print  "#endif"
+	print  ""
+	print  "#endif /* __NCURSES_H */"
+	print  ""
 	print  "#undef  NCURSES_CONST"
 	print  "#define NCURSES_CONST @NCURSES_CONST@"
 	print  ""
@@ -127,9 +145,14 @@ BEGIN {
 	print  ""
 	print  "#else /* !HAVE_TERMIO_H */"
 	print  ""
-	print  "#if _WIN32"
-	print  "#  include <ncurses_mingw.h>"
-	print  "#  define TTY struct termios"
+	print  "#if (defined(_WIN32) || defined(_WIN64))"
+	print  "#if @EXP_WIN32_DRIVER@"
+	print  "#include <win32_curses.h>"
+	print  "#define TTY struct winconmode"
+	print  "#else"
+	print  "#include <ncurses_mingw.h>"
+	print  "#define TTY struct termios"
+	print  "#endif"
 	print  "#else"
 	print  "#undef TERMIOS"
 	print  "#include <sgtty.h>"
@@ -143,6 +166,9 @@ BEGIN {
 	print  "#ifdef TERMIOS"
 	print  "#define GET_TTY(fd, buf) tcgetattr(fd, buf)"
 	print  "#define SET_TTY(fd, buf) tcsetattr(fd, TCSADRAIN, buf)"
+	print  "#elif @EXP_WIN32_DRIVER@ && (defined(_WIN32) || defined(_WIN64))"
+	print  "#define GET_TTY(fd, buf) _nc_console_getmode(_nc_console_fd2handle(fd),buf)"
+	print  "#define SET_TTY(fd, buf) _nc_console_setmode(_nc_console_fd2handle(fd),buf)"
 	print  "#else"
 	print  "#define GET_TTY(fd, buf) gtty(fd, buf)"
 	print  "#define SET_TTY(fd, buf) stty(fd, buf)"
@@ -218,28 +244,28 @@ END {
 	print  " * The only reason these structures are visible is for read-only use."
 	print  " * Programs which modify the data are not, never were, portable across"
 	print  " * curses implementations."
+	print  " *"
+	print  " * The first field in TERMINAL is used in macros."
+	print  " * The remaining fields are private."
 	print  " */"
 	print  "#ifdef NCURSES_INTERNALS"
 	print  ""
+	print  "#undef TERMINAL"
+	print  "#define TERMINAL struct term"
+	print  "TERMINAL;"
+	print  ""
 	if (@NCURSES_EXT_COLORS@) {
 	declare_termtype("int","2");
 	} else {
-	print  "typedef TERMTYPE TERMTYPE2;"
+	print  "#undef TERMTYPE2"
+	print  "#define TERMTYPE2 TERMTYPE"
 	}
+	print  "#else"
 	print  ""
 	print  "typedef struct term {		/* describe an actual terminal */"
 	print  "    TERMTYPE	type;		/* terminal type description */"
-	print  "    short	Filedes;	/* file description being written to */"
-	print  "    TTY		Ottyb;		/* original state of the terminal */"
-	print  "    TTY		Nttyb;		/* current state of the terminal */"
-	print  "    int		_baudrate;	/* used to compute padding */"
-	print  "    char *	_termname;	/* used for termname() */"
-	if (@NCURSES_EXT_COLORS@) {
-	print  "    TERMTYPE2	type2;		/* extended terminal type description */"
-	}
 	print  "} TERMINAL;"
-	print  "#else"
-	print  "typedef struct term TERMINAL;"
+	print  ""
 	print  "#endif /* NCURSES_INTERNALS */"
 	print  ""
 	print  ""
@@ -298,6 +324,7 @@ END {
 	print  "extern NCURSES_EXPORT(int) _nc_read_termtype (TERMTYPE2 *, char *, int);"
 	print  "extern NCURSES_EXPORT(char *) _nc_first_name (const char *const);"
 	print  "extern NCURSES_EXPORT(int) _nc_name_match (const char *const, const char *const, const char *const);"
+	print  "extern NCURSES_EXPORT(char *) _nc_tiparm(int, const char *, ...);"
 	print  ""
 	print  "#endif /* NCURSES_INTERNALS */"
 	print  ""
@@ -330,7 +357,6 @@ END {
 	print  "extern NCURSES_EXPORT(char *) tparm (const char *, ...);	/* special */"
 	print  "#else"
 	print  "extern NCURSES_EXPORT(char *) tparm (const char *, long,long,long,long,long,long,long,long,long);	/* special */"
-	print  "extern NCURSES_EXPORT(char *) tparm_varargs (const char *, ...);	/* special */"
 	print  "#endif"
 	print  ""
 	print  "extern NCURSES_EXPORT(char *) tiparm (const char *, ...);		/* special */"
@@ -361,7 +387,6 @@ END {
 	print  "extern NCURSES_EXPORT(char *)  NCURSES_SP_NAME(tparm) (SCREEN*, const char *, ...);	/* special */"
 	print  "#else"
 	print  "extern NCURSES_EXPORT(char *)  NCURSES_SP_NAME(tparm) (SCREEN*, const char *, long,long,long,long,long,long,long,long,long);	/* special */"
-	print  "extern NCURSES_EXPORT(char *)  NCURSES_SP_NAME(tparm_varargs) (SCREEN*, const char *, ...);	/* special */"
 	print  "#endif"
 	print  ""
 	print  "/* termcap database emulation (XPG4 uses const only for 2nd param of tgetent) */"
@@ -381,7 +406,7 @@ END {
 	print  "/*"
 	print  " * Debugging features."
 	print  " */"
-	print  "extern NCURSES_EXPORT(void)    exit_terminfo(int) GCC_NORETURN;"
+	print  "extern GCC_NORETURN NCURSES_EXPORT(void)    exit_terminfo(int);"
 	print  ""
 	print  "#ifdef __cplusplus"
 	printf "%s\n", rcurl;
diff --git a/include/Makefile.in b/include/Makefile.in
index d23c472..351383b 100644
--- a/include/Makefile.in
+++ b/include/Makefile.in
@@ -1,6 +1,6 @@
-# $Id: Makefile.in,v 1.46 2020/02/02 23:34:34 tom Exp $
+# $Id: Makefile.in,v 1.53 2021/07/03 18:56:51 tom Exp $
 ##############################################################################
-# Copyright 2019,2020 Thomas E. Dickey                                       #
+# Copyright 2019-2020,2021 Thomas E. Dickey                                  #
 # Copyright 1998-2013,2015 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -28,7 +28,7 @@
 # authorization.                                                             #
 ##############################################################################
 #
-# Author: Thomas E. Dickey 1996-2001
+# Author: Thomas E. Dickey 1996-on
 #
 # Makefile for ncurses source code.
 #
@@ -59,6 +59,10 @@ INSTALL_DATA	= @INSTALL_DATA@
 AWK		= @AWK@
 LN_S		= @LN_S@
 
+CC		= @CC@
+CFLAGS		= @CFLAGS@ @EXTRA_CFLAGS@
+CPPFLAGS	= -DHAVE_CONFIG_H -I. @CPPFLAGS@
+
 CTAGS		= @CTAGS@
 ETAGS		= @ETAGS@
 
@@ -88,6 +92,21 @@ AUTO_SRC = \
 	term.h
 
 ################################################################################
+
+@MAKE_PHONY@.PHONY :	all
+@MAKE_PHONY@.PHONY :	check
+@MAKE_PHONY@.PHONY :	clean
+@MAKE_PHONY@.PHONY :	depend
+@MAKE_PHONY@.PHONY :	distclean
+@MAKE_PHONY@.PHONY :	install
+@MAKE_PHONY@.PHONY :	install.libs
+@MAKE_PHONY@.PHONY :	libs
+@MAKE_PHONY@.PHONY :	mostlyclean
+@MAKE_PHONY@.PHONY :	realclean
+@MAKE_PHONY@.PHONY :	sources
+@MAKE_PHONY@.PHONY :	uninstall
+@MAKE_PHONY@.PHONY :	uninstall.libs
+
 all \
 libs \
 depend \
@@ -100,6 +119,7 @@ curses.h :	$(CAPLIST) \
 		$(srcdir)/MKkey_defs.sh
 	cat curses.head >$@
 	AWK=$(AWK) $(SHELL) $(srcdir)/MKkey_defs.sh $(CAPLIST) >>$@
+	$(SHELL) -c 'if test "@NCURSES_WGETCH_EVENTS@" = "1" ; then cat $(srcdir)/curses.events >>$@ ; fi'
 	$(SHELL) -c 'if test "@NCURSES_CH_T@" = "cchar_t" ; then cat $(srcdir)/curses.wide >>$@ ; fi'
 	cat $(srcdir)/curses.tail >>$@
 
@@ -141,6 +161,17 @@ distclean :: clean
 
 realclean :: distclean
 
+# Verify that each header-file can be compiled without including another.
+check:
+	@$(SHELL) -c "for header in *.h;\
+		do \
+			echo \"** testing \$${header}\" ; \
+			echo \"#include <\$${header}>\" >headers.c; \
+			echo \"int main(void) { return 0; }\" >>headers.c; \
+			$(CC) -c $(CFLAGS) $(CPPFLAGS) headers.c; \
+		done"
+	-@rm -f headers.*
+
 ###############################################################################
 # The remainder of this file is automatically generated during configuration
 ###############################################################################
diff --git a/include/capdefaults.c b/include/capdefaults.c
index 951a9ca..0bdda14 100644
--- a/include/capdefaults.c
+++ b/include/capdefaults.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 2020,2021 Thomas E. Dickey                                     *
  * Copyright 1998-2000,2008 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -33,11 +33,11 @@
  *     and: Thomas E. Dickey                        1996-on                 *
  ****************************************************************************/
 
-/* $Id: capdefaults.c,v 1.15 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: capdefaults.c,v 1.16 2021/09/04 10:52:55 tom Exp $ */
 
     /*
      * Compute obsolete capabilities.  The reason this is an include file is
-     * that the two places where it's needed want the macros to generate
+     * that the two places where it is needed require the macros to generate
      * offsets to different structures.  See the file Caps for explanations of
      * these conversions.
      *
diff --git a/include/curses.events b/include/curses.events
new file mode 100644
index 0000000..25a2583
--- /dev/null
+++ b/include/curses.events
@@ -0,0 +1,55 @@
+/* $Id*/
+/*
+ * vile:cmode:
+ * This file is part of ncurses, designed to be appended after curses.h.in
+ * (see that file for the relevant copyright).
+ */
+
+/*
+ * This is an extension to support events...
+ */
+#ifdef NCURSES_WGETCH_EVENTS
+#if !defined(__BEOS__) || defined(__HAIKU__)
+   /* Fix _nc_timed_wait() on BEOS... */
+#  define NCURSES_EVENT_VERSION	1
+#endif	/* !defined(__BEOS__) */
+
+/*
+ * Bits to set in _nc_event.data.flags
+ */
+#  define _NC_EVENT_TIMEOUT_MSEC	1
+#  define _NC_EVENT_FILE		2
+#  define _NC_EVENT_FILE_READABLE	2
+#  if 0					/* Not supported yet... */
+#    define _NC_EVENT_FILE_WRITABLE	4
+#    define _NC_EVENT_FILE_EXCEPTION	8
+#  endif
+
+typedef struct
+{
+    int type;
+    union
+    {
+	long timeout_msec;	/* _NC_EVENT_TIMEOUT_MSEC */
+	struct
+	{
+	    unsigned int flags;
+	    int fd;
+	    unsigned int result;
+	} fev;				/* _NC_EVENT_FILE */
+    } data;
+} _nc_event;
+
+typedef struct
+{
+    int count;
+    int result_flags;	/* _NC_EVENT_TIMEOUT_MSEC or _NC_EVENT_FILE_READABLE */
+    _nc_event *events[1];
+} _nc_eventlist;
+
+extern NCURSES_EXPORT(int) wgetch_events (WINDOW *, _nc_eventlist *) GCC_DEPRECATED(experimental option); /* experimental */
+extern NCURSES_EXPORT(int) wgetnstr_events (WINDOW *,char *,int,_nc_eventlist *) GCC_DEPRECATED(experimental option); /* experimental */
+
+#define KEY_EVENT	0633		/* We were interrupted by an event */
+
+#endif /* NCURSES_WGETCH_EVENTS */
diff --git a/include/curses.h.in b/include/curses.h.in
index 2cb3224..6acf2d0 100644
--- a/include/curses.h.in
+++ b/include/curses.h.in
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2018-2019,2020 Thomas E. Dickey                                *
+ * Copyright 2018-2020,2021 Thomas E. Dickey                                *
  * Copyright 1998-2016,2017 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -33,11 +33,39 @@
  *     and: Thomas E. Dickey                        1996-on                 *
  ****************************************************************************/
 
-/* $Id: curses.h.in,v 1.266 2020/02/08 10:51:53 tom Exp $ */
+/* $Id: curses.h.in,v 1.277 2021/09/24 16:07:37 tom Exp $ */
 
 #ifndef __NCURSES_H
 #define __NCURSES_H
 
+/*
+ The symbols beginning NCURSES_ or USE_ are configuration choices.
+ A few of the former can be overridden by applications at compile-time.
+ Most of the others correspond to configure-script options (or checks
+ by the configure-script for features of the system on which it is built).
+
+ These symbols can be overridden by applications at compile-time:
+ NCURSES_NOMACROS suppresses macro definitions in favor of functions
+ NCURSES_WATTR_MACROS suppresses wattr_* macro definitions
+ NCURSES_WIDECHAR is an alternative for declaring wide-character functions.
+
+ These symbols are used only when building ncurses:
+ NCURSES_ATTR_T
+ NCURSES_FIELD_INTERNALS
+ NCURSES_INTERNALS
+
+ These symbols are set by the configure script:
+ NCURSES_ENABLE_STDBOOL_H
+ NCURSES_EXPANDED
+ NCURSES_EXT_COLORS
+ NCURSES_EXT_FUNCS
+ NCURSES_EXT_PUTWIN
+ NCURSES_NO_PADDING
+ NCURSES_OSPEED_COMPAT
+ NCURSES_PATHSEP
+ NCURSES_REENTRANT
+ */
+
 #define CURSES 1
 #define CURSES_H 1
 
@@ -60,10 +88,22 @@
  */
 #include <ncurses_dll.h>
 
+/*
+ * Extra headers.
+ */
 #if @HAVE_STDINT_H@
 #include <stdint.h>
 #endif
 
+#ifdef __cplusplus
+#else
+#if @HAVE_STDNORETURN_H@
+#include <stdnoreturn.h>
+#undef GCC_NORETURN
+#define GCC_NORETURN _Noreturn
+#endif
+#endif
+
 /*
  * User-definable tweak to disable the include of <stdbool.h>.
  */
@@ -391,7 +431,14 @@ extern NCURSES_EXPORT_VAR(chtype) acs_map[];
  */
 #define _NEWINDEX	-1
 
+#ifdef NCURSES_INTERNALS
+#undef SCREEN
+#define SCREEN struct screen
+SCREEN;
+#else
 typedef struct screen  SCREEN;
+#endif
+
 typedef struct _win_st WINDOW;
 
 typedef	chtype	attr_t;		/* ...must be at least as wide as chtype */
@@ -498,55 +545,6 @@ struct _win_st
 #endif /* NCURSES_OPAQUE */
 
 /*
- * This is an extension to support events...
- */
-#if @NCURSES_EXT_FUNCS@
-#ifdef NCURSES_WGETCH_EVENTS
-#if !defined(__BEOS__) || defined(__HAIKU__)
-   /* Fix _nc_timed_wait() on BEOS... */
-#  define NCURSES_EVENT_VERSION	1
-#endif	/* !defined(__BEOS__) */
-
-/*
- * Bits to set in _nc_event.data.flags
- */
-#  define _NC_EVENT_TIMEOUT_MSEC	1
-#  define _NC_EVENT_FILE		2
-#  define _NC_EVENT_FILE_READABLE	2
-#  if 0					/* Not supported yet... */
-#    define _NC_EVENT_FILE_WRITABLE	4
-#    define _NC_EVENT_FILE_EXCEPTION	8
-#  endif
-
-typedef struct
-{
-    int type;
-    union
-    {
-	long timeout_msec;	/* _NC_EVENT_TIMEOUT_MSEC */
-	struct
-	{
-	    unsigned int flags;
-	    int fd;
-	    unsigned int result;
-	} fev;				/* _NC_EVENT_FILE */
-    } data;
-} _nc_event;
-
-typedef struct
-{
-    int count;
-    int result_flags;	/* _NC_EVENT_TIMEOUT_MSEC or _NC_EVENT_FILE_READABLE */
-    _nc_event *events[1];
-} _nc_eventlist;
-
-extern NCURSES_EXPORT(int) wgetch_events (WINDOW *, _nc_eventlist *);	/* experimental */
-extern NCURSES_EXPORT(int) wgetnstr_events (WINDOW *,char *,int,_nc_eventlist *);/* experimental */
-
-#endif /* NCURSES_WGETCH_EVENTS */
-#endif /* NCURSES_EXT_FUNCS */
-
-/*
  * GCC (and some other compilers) define '__attribute__'; we're using this
  * macro to alert the compiler to flag inconsistencies in printf/scanf-like
  * function calls.  Just in case '__attribute__' isn't defined, make a dummy.
@@ -559,14 +557,10 @@ extern NCURSES_EXPORT(int) wgetnstr_events (WINDOW *,char *,int,_nc_eventlist *)
 
 /*
  * We cannot define these in ncurses_cfg.h, since they require parameters to be
- * passed (that is non-portable).  If you happen to be using gcc with warnings
- * enabled, define
- *	GCC_PRINTF
- *	GCC_SCANF
- * to improve checking of calls to printw(), etc.
+ * passed (that is non-portable).
  */
 #ifndef GCC_PRINTFLIKE
-#if defined(GCC_PRINTF) && !defined(printf)
+#ifndef printf
 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
 #else
 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
@@ -574,7 +568,7 @@ extern NCURSES_EXPORT(int) wgetnstr_events (WINDOW *,char *,int,_nc_eventlist *)
 #endif
 
 #ifndef GCC_SCANFLIKE
-#if defined(GCC_SCANF) && !defined(scanf)
+#ifndef scanf
 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
 #else
 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
@@ -590,7 +584,7 @@ extern NCURSES_EXPORT(int) wgetnstr_events (WINDOW *,char *,int,_nc_eventlist *)
 #endif
 
 #undef  GCC_DEPRECATED
-#if (__GNUC__ - 0 > 3 || (__GNUC__ - 0 == 3 && __GNUC_MINOR__ - 0 >= 2))
+#if (__GNUC__ - 0 > 3 || (__GNUC__ - 0 == 3 && __GNUC_MINOR__ - 0 >= 2)) && !defined(NCURSES_INTERNALS)
 #define GCC_DEPRECATED(msg) __attribute__((deprecated))
 #else
 #define GCC_DEPRECATED(msg) /* nothing */
@@ -822,10 +816,14 @@ extern NCURSES_EXPORT(void) use_tioctl (bool);				/* implemented */
 extern NCURSES_EXPORT(int) vidattr (chtype);				/* implemented */
 extern NCURSES_EXPORT(int) vidputs (chtype, NCURSES_OUTC);		/* implemented */
 extern NCURSES_EXPORT(int) vline (chtype, int);				/* generated */
-extern NCURSES_EXPORT(int) vwprintw (WINDOW *, const char *,va_list) GCC_DEPRECATED(use vw_printw);	/* implemented */
-extern NCURSES_EXPORT(int) vw_printw (WINDOW *, const char *,va_list);	/* implemented */
-extern NCURSES_EXPORT(int) vwscanw (WINDOW *, const char *,va_list) GCC_DEPRECATED(use vw_scanw);	/* implemented */
-extern NCURSES_EXPORT(int) vw_scanw (WINDOW *, const char *,va_list);	/* implemented */
+extern NCURSES_EXPORT(int) vwprintw (WINDOW *, const char *, va_list) GCC_DEPRECATED(use vw_printw)	/* implemented */
+		GCC_PRINTFLIKE(2,0);
+extern NCURSES_EXPORT(int) vw_printw (WINDOW *, const char *, va_list)	/* implemented */
+		GCC_PRINTFLIKE(2,0);	
+extern NCURSES_EXPORT(int) vwscanw (WINDOW *, const char *, va_list) GCC_DEPRECATED(use vw_scanw)	/* implemented */
+		GCC_SCANFLIKE(2,0);
+extern NCURSES_EXPORT(int) vw_scanw (WINDOW *, const char *, va_list)	/* implemented */
+		GCC_SCANFLIKE(2,0);
 extern NCURSES_EXPORT(int) waddch (WINDOW *, const chtype);		/* implemented */
 extern NCURSES_EXPORT(int) waddchnstr (WINDOW *,const chtype *,int);	/* implemented */
 extern NCURSES_EXPORT(int) waddchstr (WINDOW *,const chtype *);		/* generated */
@@ -895,7 +893,6 @@ extern NCURSES_EXPORT(int) putp (const char *);				/* implemented */
 extern NCURSES_EXPORT(char *) tparm (const char *, ...);		/* special */
 #else
 extern NCURSES_EXPORT(char *) tparm (const char *, NCURSES_TPARM_ARG,NCURSES_TPARM_ARG,NCURSES_TPARM_ARG,NCURSES_TPARM_ARG,NCURSES_TPARM_ARG,NCURSES_TPARM_ARG,NCURSES_TPARM_ARG,NCURSES_TPARM_ARG,NCURSES_TPARM_ARG);	/* special */
-extern NCURSES_EXPORT(char *) tparm_varargs (const char *, ...);	/* special */
 #endif
 
 extern NCURSES_EXPORT(char *) tiparm (const char *, ...);		/* special */
diff --git a/include/curses.tail b/include/curses.tail
index 05f7439..1151449 100644
--- a/include/curses.tail
+++ b/include/curses.tail
@@ -1,4 +1,4 @@
-/* $Id: curses.tail,v 1.25 2019/12/14 22:28:39 tom Exp $ */
+/* $Id: curses.tail,v 1.26 2021/03/20 15:49:25 tom Exp $ */
 /*
  * vile:cmode:
  * This file is part of ncurses, designed to be appended after curses.h.in
@@ -174,7 +174,7 @@ extern NCURSES_EXPORT(const char *) _nc_visbuf (const char *);
 #define OPTIMIZE_ALL		0xff	/* enable all optimizations (dflt) */
 #endif
 
-extern NCURSES_EXPORT(void) exit_curses (int) GCC_NORETURN;
+extern GCC_NORETURN NCURSES_EXPORT(void) exit_curses (int);
 
 #include <unctrl.h>
 
diff --git a/include/curses.wide b/include/curses.wide
index 7a8ae7d..33adb07 100644
--- a/include/curses.wide
+++ b/include/curses.wide
@@ -1,4 +1,4 @@
-/* $Id: curses.wide,v 1.50 2017/03/26 16:05:21 tom Exp $ */
+/* $Id: curses.wide,v 1.51 2021/05/22 20:28:29 tom Exp $ */
 /*
  * vile:cmode:
  * This file is part of ncurses, designed to be appended after curses.h.in
@@ -219,10 +219,12 @@ extern NCURSES_EXPORT(int) wvline_set (WINDOW *, const cchar_t *, int);	/* imple
 
 #if NCURSES_SP_FUNCS
 extern NCURSES_EXPORT(attr_t) NCURSES_SP_NAME(term_attrs) (SCREEN*);		/* implemented:SP_FUNC */
+extern NCURSES_EXPORT(int) NCURSES_SP_NAME(erasewchar) (SCREEN*, wchar_t *);	/* implemented:SP_FUNC */
+extern NCURSES_EXPORT(int) NCURSES_SP_NAME(killwchar) (SCREEN*, wchar_t *);	/* implemented:SP_FUNC */
 extern NCURSES_EXPORT(int) NCURSES_SP_NAME(unget_wch) (SCREEN*, const wchar_t);	/* implemented:SP_FUNC */
-extern NCURSES_EXPORT(wchar_t*) NCURSES_SP_NAME(wunctrl) (SCREEN*, cchar_t *);	/* implemented:SP_FUNC */
 extern NCURSES_EXPORT(int) NCURSES_SP_NAME(vid_attr) (SCREEN*, attr_t, NCURSES_PAIRS_T, void *);	/* implemented:SP_FUNC */
 extern NCURSES_EXPORT(int) NCURSES_SP_NAME(vid_puts) (SCREEN*, attr_t, NCURSES_PAIRS_T, void *, NCURSES_SP_OUTC);	/* implemented:SP_FUNC */
+extern NCURSES_EXPORT(wchar_t*) NCURSES_SP_NAME(wunctrl) (SCREEN*, cchar_t *);	/* implemented:SP_FUNC */
 #endif
 
 #ifndef NCURSES_NOMACROS
diff --git a/include/headers b/include/headers
index dbb134d..32e33fd 100644
--- a/include/headers
+++ b/include/headers
@@ -1,4 +1,4 @@
-# $Id: headers,v 1.14 2020/02/02 23:34:34 tom Exp $
+# $Id: headers,v 1.15 2020/08/29 18:51:13 tom Exp $
 ##############################################################################
 # Copyright 2020 Thomas E. Dickey                                            #
 # Copyright 1998-2012,2013 Free Software Foundation, Inc.                    #
@@ -49,5 +49,7 @@ $(srcdir)/nc_tparm.h
 @ port_win32con
 $(srcdir)/ncurses_mingw.h
 $(srcdir)/nc_mingw.h
+@ port_win32
+$(srcdir)/win32_curses.h
 
 # vile:makemode
diff --git a/include/nc_access.h b/include/nc_access.h
new file mode 100644
index 0000000..2e893aa
--- /dev/null
+++ b/include/nc_access.h
@@ -0,0 +1,80 @@
+/****************************************************************************
+ * Copyright 2021 Thomas E. Dickey                                          *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/* $Id: nc_access.h,v 1.2 2021/07/10 22:07:06 tom Exp $ */
+
+#ifndef NC_ACCESS_included
+#define NC_ACCESS_included 1
+/* *INDENT-OFF* */
+
+#include <ncurses_cfg.h>
+#include <curses.h>
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Turn off this symbol to limit access to environment variables when root.
+ */
+#ifdef USE_ROOT_ENVIRON
+
+#define use_terminfo_vars() 1
+
+#else
+
+#define use_terminfo_vars() _nc_env_access()
+extern NCURSES_EXPORT(int) _nc_env_access (void);
+
+#endif
+
+/*
+ * Turn off this symbol to limit access to files when running setuid.
+ */
+#ifdef USE_ROOT_ACCESS
+
+#define safe_fopen(name,mode) fopen(name,mode)
+#define safe_open3(name,flags,mode) open(name,flags,mode)
+
+#else
+
+#define safe_fopen(name,mode) fopen(name,mode)
+#define safe_open3(name,flags,mode) open(name,flags,mode)
+extern NCURSES_EXPORT(FILE *) _nc_safe_fopen (const char *, const char *);
+extern NCURSES_EXPORT(int) _nc_safe_open3 (const char *, int, mode_t);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/* *INDENT-ON* */
+
+#endif /* NC_ACCESS_included */
diff --git a/include/nc_alloc.h b/include/nc_alloc.h
index ca63e78..3e5ca8d 100644
--- a/include/nc_alloc.h
+++ b/include/nc_alloc.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2019,2020 Thomas E. Dickey                                     *
+ * Copyright 2019-2020,2021 Thomas E. Dickey                                *
  * Copyright 1998-2013,2017 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -30,7 +30,7 @@
 /****************************************************************************
  *  Author: Thomas E. Dickey                    1996-on                     *
  ****************************************************************************/
-/* $Id: nc_alloc.h,v 1.26 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: nc_alloc.h,v 1.28 2021/03/20 16:07:29 tom Exp $ */
 
 #ifndef NC_ALLOC_included
 #define NC_ALLOC_included 1
@@ -73,27 +73,27 @@ extern "C" {
 #if HAVE_LIBDBMALLOC || HAVE_LIBDMALLOC || NO_LEAKS
 #define HAVE_NC_FREEALL 1
 struct termtype;
-extern NCURSES_EXPORT(void) _nc_free_tinfo(int) GCC_NORETURN GCC_DEPRECATED("use exit_terminfo");
+extern GCC_NORETURN  NCURSES_EXPORT(void) _nc_free_tinfo(int) GCC_DEPRECATED("use exit_terminfo");
 
 #ifdef NCURSES_INTERNALS
-extern NCURSES_EXPORT(void) _nc_free_tic(int) GCC_NORETURN;
+extern GCC_NORETURN NCURSES_EXPORT(void) _nc_free_tic(int);
 extern NCURSES_EXPORT(void) _nc_free_tparm(void);
-extern NCURSES_EXPORT(void) _nc_leaks_dump_entry(void);
+extern void _nc_leaks_dump_entry(void);
 extern NCURSES_EXPORT(void) _nc_leaks_tic(void);
 
 #if NCURSES_SP_FUNCS
-extern NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_free_and_exit)(SCREEN*, int) GCC_NORETURN;
+extern GCC_NORETURN NCURSES_EXPORT(void) NCURSES_SP_NAME(_nc_free_and_exit)(SCREEN*, int);
 #endif
-extern NCURSES_EXPORT(void) _nc_free_and_exit(int) GCC_NORETURN;
+extern GCC_NORETURN NCURSES_EXPORT(void) _nc_free_and_exit(int);
 
 #else /* !NCURSES_INTERNALS */
-extern NCURSES_EXPORT(void) _nc_free_and_exit(int) GCC_NORETURN GCC_DEPRECATED("use exit_curses");
+extern GCC_NORETURN NCURSES_EXPORT(void) _nc_free_and_exit(int) GCC_DEPRECATED("use exit_curses");
 #endif
 
 #define ExitProgram(code) exit_curses(code)
 
 #else
-extern NCURSES_EXPORT(void) _nc_free_and_exit(int) GCC_NORETURN GCC_DEPRECATED("use exit_curses");
+extern GCC_NORETURN NCURSES_EXPORT(void) _nc_free_and_exit(int) GCC_DEPRECATED("use exit_curses");
 #endif /* NO_LEAKS, etc */
 
 #ifndef HAVE_NC_FREEALL
diff --git a/include/nc_mingw.h b/include/nc_mingw.h
index 68a4184..6729b29 100644
--- a/include/nc_mingw.h
+++ b/include/nc_mingw.h
@@ -31,12 +31,13 @@
  * Author: Thomas Dickey, 2008-on                                           *
  ****************************************************************************/
 
-/* $Id: nc_mingw.h,v 1.7 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: nc_mingw.h,v 1.9 2020/07/11 22:13:19 tom Exp $ */
 
 #ifndef NC_MINGW_H
 #define NC_MINGW_H 1
 
 #ifdef _WIN32
+
 #ifdef WINVER
 #  if WINVER < 0x0501
 #    error WINVER must at least be 0x0501
@@ -52,9 +53,21 @@
 #undef gettimeofday
 #define gettimeofday(tv,tz) _nc_gettimeofday(tv,tz)
 
+#if HAVE_SYS_TIME_H
 #include <sys/time.h>		/* for struct timeval */
+#endif
 
-extern int _nc_gettimeofday(struct timeval *, void *);
+#ifdef _MSC_VER
+#include <winsock2.h>		/* for struct timeval */
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <ncurses_dll.h>
+
+NCURSES_EXPORT(int) _nc_gettimeofday(struct timeval *, void *);
 
 #undef HAVE_GETTIMEOFDAY
 #define HAVE_GETTIMEOFDAY 1
@@ -65,7 +78,11 @@ extern int _nc_gettimeofday(struct timeval *, void *);
 
 #undef wcwidth
 #define wcwidth(ucs) _nc_wcwidth((wchar_t)(ucs))
-extern int _nc_wcwidth(wchar_t);
+NCURSES_EXPORT(int) _nc_wcwidth(wchar_t);
+
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* _WIN32 */
 
diff --git a/include/nc_string.h b/include/nc_string.h
index 93cf201..546aa06 100644
--- a/include/nc_string.h
+++ b/include/nc_string.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 2020,2021 Thomas E. Dickey                                     *
  * Copyright 2012-2013,2016 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -41,7 +41,7 @@
 #endif
 
 /*
- * $Id: nc_string.h,v 1.8 2020/02/02 23:34:34 tom Exp $
+ * $Id: nc_string.h,v 1.9 2021/04/25 00:10:43 tom Exp $
  *
  * String-hacks.  Use these macros to stifle warnings on (presumably) correct
  * uses of strcat, strcpy and sprintf.
@@ -76,7 +76,11 @@
 #endif
 
 #if USE_STRING_HACKS && HAVE_SNPRINTF
+#ifdef __cplusplus
 #define _nc_SPRINTF             NCURSES_VOID snprintf
+#else
+#define _nc_SPRINTF             NCURSES_VOID (snprintf)
+#endif
 #define _nc_SLIMIT(n)           NCURSES_CAST(size_t,n),
 #else
 #define _nc_SPRINTF             NCURSES_VOID sprintf
diff --git a/include/nc_termios.h b/include/nc_termios.h
index 87fa46e..13cc0af 100644
--- a/include/nc_termios.h
+++ b/include/nc_termios.h
@@ -31,7 +31,7 @@
  *  Author: Thomas E. Dickey                        2011                    *
  ****************************************************************************/
 
-/* $Id: nc_termios.h,v 1.7 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: nc_termios.h,v 1.8 2020/08/29 20:53:19 tom Exp $ */
 
 #ifndef NC_TERMIOS_included
 #define NC_TERMIOS_included 1
@@ -70,9 +70,13 @@
 #define tcflush(fd, arg) ioctl(fd, TCFLSH, arg)
 #endif
 
+#if defined(EXP_WIN32_DRIVER)
+#undef TERMIOS
+#endif
+
 #else /* !HAVE_TERMIO_H */
 
-#if _WIN32
+#if defined(_WIN32) && !defined(EXP_WIN32_DRIVER)
 
 /* lflag bits */
 #define ISIG	0x0001
diff --git a/include/nc_tparm.h b/include/nc_tparm.h
index 6157095..943d947 100644
--- a/include/nc_tparm.h
+++ b/include/nc_tparm.h
@@ -31,7 +31,7 @@
  *  Author: Thomas E. Dickey                        2006                    *
  ****************************************************************************/
 
-/* $Id: nc_tparm.h,v 1.10 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: nc_tparm.h,v 1.11 2020/05/27 23:33:31 tom Exp $ */
 
 #ifndef NC_TPARM_included
 #define NC_TPARM_included 1
@@ -77,4 +77,16 @@
 #define TPARM_0(a) TPARM_1(a,0)
 #endif
 
+#ifdef NCURSES_INTERNALS
+#define TIPARM_1(s,a) _nc_tiparm(1,s,a)
+#define TIPARM_2(s,a,b) _nc_tiparm(2,s,a,b)
+#define TIPARM_3(s,a,b,c) _nc_tiparm(3,s,a,b,c)
+#define TIPARM_4(s,a,b,c,d) _nc_tiparm(4,s,a,b,c,d)
+#define TIPARM_5(s,a,b,c,d,e) _nc_tiparm(5,s,a,b,c,d,e)
+#define TIPARM_6(s,a,b,c,d,e,f) _nc_tiparm(6,s,a,b,c,d,e,f)
+#define TIPARM_7(s,a,b,c,d,e,f,g) _nc_tiparm(7,s,a,b,c,d,e,f,g)
+#define TIPARM_8(s,a,b,c,d,e,f,g,h) _nc_tiparm(8,s,a,b,c,d,e,f,g,h)
+#define TIPARM_9(s,a,b,c,d,e,f,g,h,i) _nc_tiparm(9,s,a,b,c,d,e,f,g,h,i)
+#endif
+
 #endif /* NC_TPARM_included */
diff --git a/include/nc_win32.h b/include/nc_win32.h
new file mode 100644
index 0000000..790e8df
--- /dev/null
+++ b/include/nc_win32.h
@@ -0,0 +1,183 @@
+/****************************************************************************
+ * Copyright 2018-2019,2020 Thomas E. Dickey                                *
+ * Copyright 2008-2010,2017 Free Software Foundation, Inc.                  *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Thomas Dickey, 2008-on                                           *
+ ****************************************************************************/
+
+/* $Id: nc_win32.h,v 1.9 2020/09/13 00:17:30 tom Exp $ */
+
+#ifndef NC_WIN32_H
+#define NC_WIN32_H 1
+
+#if defined(_WIN32) || defined(_WIN64)
+
+#ifndef _NC_WINDOWS
+#define _NC_WINDOWS
+#endif
+
+#ifdef TERMIOS
+#error TERMIOS must not be defined on Windows
+#endif
+
+/* We no longer support WindowsXP.
+   Minimum requirement is Windows Vista or Server2008,
+   aka Windows NT 6.0
+*/
+#ifdef WINVER
+#  if WINVER < 0x0600
+#    error WINVER must at least be 0x0600
+#  endif
+#else
+#  define WINVER 0x0600
+#endif
+
+#undef _NC_CHECK_MINTTY
+#if WINVER >= 0x0600
+#define _NC_CHECK_MINTTY
+#endif
+
+#include <windows.h>
+
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>		/* for struct timeval */
+#endif
+
+#ifdef _NC_MSC
+#include <winsock2.h>		/* for struct timeval */
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <ncurses_dll.h>
+
+#undef HAVE_GETTIMEOFDAY
+#define HAVE_GETTIMEOFDAY 1
+extern NCURSES_EXPORT(int) _nc_gettimeofday(struct timeval *, void *);
+
+#undef wcwidth
+#define wcwidth(ucs)  _nc_wcwidth((wchar_t)(ucs))
+extern NCURSES_EXPORT(int)    _nc_wcwidth(wchar_t);
+
+#ifdef EVENTLIST_2nd /* test.priv.h just needs the preceding */
+
+extern NCURSES_EXPORT(void)   _nc_console_size(int* Lines, int* Cols);
+extern NCURSES_EXPORT(HANDLE) _nc_console_handle(int fd);
+extern NCURSES_EXPORT(int)    _nc_console_isatty(int fd);
+extern NCURSES_EXPORT(int)    _nc_console_test(int fd);
+extern NCURSES_EXPORT(int)    _nc_console_read(SCREEN *sp,HANDLE hdl,int *buf);
+extern NCURSES_EXPORT(int)    _nc_console_twait(SCREEN *, HANDLE,int,int,int * EVENTLIST_2nd(_nc_eventlist * evl));
+extern NCURSES_EXPORT(WORD)   _nc_console_MapColor(bool fore, int color);
+extern NCURSES_EXPORT(void)   _nc_console_selectActiveHandle(void);
+extern NCURSES_EXPORT(bool)   _nc_console_get_SBI(void);
+extern NCURSES_EXPORT(void)   _nc_console_set_scrollback(bool normal, CONSOLE_SCREEN_BUFFER_INFO * info);
+extern NCURSES_EXPORT(int)    _nc_console_testmouse(SCREEN *,HANDLE,int EVENTLIST_2nd(_nc_eventlist*));
+extern NCURSES_EXPORT(int)    _nc_console_keyok(int keycode,int flag);
+extern NCURSES_EXPORT(bool)   _nc_console_keyExist(int keycode);
+extern NCURSES_EXPORT(bool)   _nc_console_checkinit(bool initFlag, bool assumeTermInfo);
+extern NCURSES_EXPORT(int)    _nc_console_vt_supported(void);
+
+#ifdef _NC_CHECK_MINTTY
+extern NCURSES_EXPORT(int)    _nc_console_checkmintty(int fd, LPHANDLE pMinTTY);
+#endif
+
+#undef VALID_TERM_ENV
+#define MS_TERMINAL "ms-terminal"
+#define VALID_TERM_ENV(term_env, no_terminal) \
+	(term_env = (NonEmpty(term_env) \
+		      ? term_env \
+		      : (_nc_console_vt_supported() \
+		         ? MS_TERMINAL \
+		         : no_terminal)), \
+	 NonEmpty(term_env))
+
+  /*
+   * Various Console mode definitions
+   */
+
+  /* Flags to enable virtual Terminal processing */
+#define VT_FLAG_OUT ENABLE_VIRTUAL_TERMINAL_PROCESSING
+#define VT_FLAG_IN  ENABLE_VIRTUAL_TERMINAL_INPUT
+
+  /* Default flags for input/output modes */
+#define CONMODE_IN_DEFAULT (ENABLE_LINE_INPUT | ENABLE_PROCESSED_INPUT | ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT)
+#define CONMODE_OUT_DEFAULT (ENABLE_PROCESSED_OUTPUT | DISABLE_NEWLINE_AUTO_RETURN | ENABLE_LVB_GRID_WORLDWIDE)
+
+  /* Flags to reset from RAW/CBREAK */
+#define CONMODE_NORAW    (ENABLE_PROCESSED_INPUT|ENABLE_LINE_INPUT)
+#define CONMODE_NOCBREAK (ENABLE_LINE_INPUT)
+
+
+#if defined(USE_TERM_DRIVER) && defined(USE_WIN32CON_DRIVER)
+extern NCURSES_EXPORT_VAR(TERM_DRIVER) _nc_WIN_DRIVER;
+#endif
+
+#define CON_NUMPAIRS 64
+typedef struct {
+    BOOL initialized;
+    BOOL buffered;
+    BOOL window_only;
+    BOOL progMode;
+    BOOL isMinTTY;
+    BOOL isTermInfoConsole;
+    HANDLE out;
+    HANDLE inp;
+    HANDLE hdl;
+    HANDLE lastOut;
+    int numButtons;
+    LPDWORD ansi_map;
+    LPDWORD map;
+    LPDWORD rmap;
+    WORD pairs[CON_NUMPAIRS];
+    COORD origin;
+    CHAR_INFO *save_screen;
+    COORD save_size;
+    SMALL_RECT save_region;
+    CONSOLE_SCREEN_BUFFER_INFO SBI;
+    CONSOLE_SCREEN_BUFFER_INFO save_SBI;
+    CONSOLE_CURSOR_INFO save_CI;
+    TTY originalMode;
+} ConsoleInfo;
+
+extern NCURSES_EXPORT_VAR(ConsoleInfo) _nc_CONSOLE;
+#define WINCONSOLE _nc_CONSOLE
+
+#define TypeAlloca(type,count)(type*) _alloca(sizeof(type)*(size_t)(count))
+
+#endif /* EVENTLIST_2nd */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _WIN32 || _WIN64 */
+
+#endif /* NC_WIN32_H */
diff --git a/include/ncurses_cfg.hin b/include/ncurses_cfg.hin
index bf9b2c5..8d9ed81 100644
--- a/include/ncurses_cfg.hin
+++ b/include/ncurses_cfg.hin
@@ -31,7 +31,7 @@
  *  Author: Thomas E. Dickey      1997-on                                   *
  ****************************************************************************/
 /*
- * $Id: ncurses_cfg.hin,v 1.12 2020/02/02 23:34:34 tom Exp $
+ * $Id: ncurses_cfg.hin,v 1.13 2020/03/08 12:37:59 tom Exp $
  *
  * Both ncurses_cfg.h and ncurses_def.h are internal header-files used when
  * building ncurses.
@@ -43,7 +43,7 @@
  * 971222) to autoconf 2.12 or 2.13 to do this.
  *
  * See:
- *	http://invisible-island.net/autoconf/
+ *	https://invisible-island.net/autoconf/
  *	ftp://ftp.invisible-island.net/autoconf/
  */
 #ifndef NC_CONFIG_H
diff --git a/include/ncurses_defs b/include/ncurses_defs
index e37fc90..115f982 100644
--- a/include/ncurses_defs
+++ b/include/ncurses_defs
@@ -1,6 +1,6 @@
-# $Id: ncurses_defs,v 1.92 2020/02/02 23:34:34 tom Exp $
+# $Id: ncurses_defs,v 1.97 2021/06/26 18:56:32 tom Exp $
 ##############################################################################
-# Copyright 2018-2019,2020 Thomas E. Dickey                                  #
+# Copyright 2018-2020,2021 Thomas E. Dickey                                  #
 # Copyright 2000-2016,2017 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -48,7 +48,7 @@ HAVE_BIG_CORE
 HAVE_BSD_CGETENT
 HAVE_BSD_SIGNAL_H
 HAVE_BSD_STRING_H
-HAVE_BTOWC 
+HAVE_BTOWC
 HAVE_BUILTIN_H
 HAVE_CHGAT	1
 HAVE_COLOR_CONTENT	1
@@ -63,6 +63,8 @@ HAVE_DERWIN	1
 HAVE_DIRENT_H
 HAVE_DUPWIN	1
 HAVE_ERRNO
+HAVE_EXIT_CURSES	1
+HAVE_EXIT_TERMINFO	1
 HAVE_FCNTL_H
 HAVE_FILTER	1
 HAVE_FORM_H
@@ -120,13 +122,13 @@ HAVE_NANOSLEEP
 HAVE_NC_ALLOC_H
 HAVE_NEWPAD	1
 HAVE_PANEL_H
-HAVE_PCRE2_POSIX_H
+HAVE_PCRE2POSIX_H
 HAVE_PCREPOSIX_H
 HAVE_POLL
 HAVE_POLL_H
 HAVE_PURIFY
 HAVE_PUTENV
-HAVE_PUTWC 
+HAVE_PUTWC
 HAVE_PUTWIN	1
 HAVE_REGEXPR_H_FUNCS
 HAVE_REGEXP_H_FUNCS
@@ -141,6 +143,7 @@ HAVE_SCR_DUMP 1
 HAVE_SELECT
 HAVE_SETBUF
 HAVE_SETBUFFER
+HAVE_SETFSUID
 HAVE_SETENV
 HAVE_SETUPTERM	1
 HAVE_SETVBUF
@@ -205,7 +208,7 @@ HAVE_VW_PRINTW	1
 HAVE_WCHGAT	1
 HAVE_WCSRTOMBS
 HAVE_WCSTOMBS
-HAVE_WCTOB 
+HAVE_WCTOB
 HAVE_WCTOMB
 HAVE_WCTYPE_H
 HAVE_WINSDELLN	1
diff --git a/include/ncurses_dll.h.in b/include/ncurses_dll.h.in
index f439d48..437c54d 100644
--- a/include/ncurses_dll.h.in
+++ b/include/ncurses_dll.h.in
@@ -26,7 +26,7 @@
  * sale, use or other dealings in this Software without prior written       *
  * authorization.                                                           *
  ****************************************************************************/
-/* $Id: ncurses_dll.h.in,v 1.12 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: ncurses_dll.h.in,v 1.17 2020/09/05 17:58:47 juergen Exp $ */
 
 #ifndef NCURSES_DLL_H_incl
 #define NCURSES_DLL_H_incl 1
@@ -66,52 +66,34 @@
  * using functions to access them.
  */
 #define NCURSES_PUBLIC_VAR(name) @NCURSES_WRAP_PREFIX@##name
-#define NCURSES_WRAPPED_VAR(type,name) extern type NCURSES_PUBLIC_VAR(name)(void)
 
-/* no longer needed on cygwin or mingw, thanks to auto-import       */
-/* but this structure may be useful at some point for an MSVC build */
-/* so, for now unconditionally define the important flags           */
-/* "the right way" for proper static and dll+auto-import behavior   */
-#undef NCURSES_DLL
-#define NCURSES_STATIC
-
-#if defined(__CYGWIN__) || defined(_WIN32)
-#  if defined(NCURSES_DLL)
-#    if defined(NCURSES_STATIC)
-#      undef NCURSES_STATIC
-#    endif
-#  endif
-#  undef NCURSES_IMPEXP
-#  undef NCURSES_API
-#  undef NCURSES_EXPORT
-#  undef NCURSES_EXPORT_VAR
-#  if defined(NCURSES_DLL)
-/* building a DLL */
-#    define NCURSES_IMPEXP __declspec(dllexport)
-#  elif defined(NCURSES_STATIC)
-/* building or linking to a static library */
-#    define NCURSES_IMPEXP /* nothing */
-#  else
-/* linking to the DLL */
-#    define NCURSES_IMPEXP __declspec(dllimport)
-#  endif
-#  define NCURSES_API __cdecl
-#  define NCURSES_EXPORT(type) NCURSES_IMPEXP type NCURSES_API
-#  define NCURSES_EXPORT_VAR(type) NCURSES_IMPEXP type
+#if defined(BUILDING_NCURSES)
+# define NCURSES_IMPEXP NCURSES_EXPORT_GENERAL_EXPORT
+#else
+# define NCURSES_IMPEXP NCURSES_EXPORT_GENERAL_IMPORT
 #endif
 
-/* Take care of non-cygwin platforms */
-#if !defined(NCURSES_IMPEXP)
-#  define NCURSES_IMPEXP /* nothing */
-#endif
-#if !defined(NCURSES_API)
-#  define NCURSES_API /* nothing */
-#endif
-#if !defined(NCURSES_EXPORT)
-#  define NCURSES_EXPORT(type) NCURSES_IMPEXP type NCURSES_API
-#endif
-#if !defined(NCURSES_EXPORT_VAR)
-#  define NCURSES_EXPORT_VAR(type) NCURSES_IMPEXP type
+#define NCURSES_WRAPPED_VAR(type,name) extern NCURSES_IMPEXP type NCURSES_PUBLIC_VAR(name)(void)
+
+#define NCURSES_EXPORT(type) NCURSES_IMPEXP type NCURSES_API
+#define NCURSES_EXPORT_VAR(type) NCURSES_IMPEXP type
+
+/*
+ * These symbols hide dllimport/dllexport, for compilers which care about it.
+ */
+#if defined(__CYGWIN__) || (defined(_WIN32) || defined(_WIN64))
+# if defined(NCURSES_STATIC)	/* "static" here only implies "not-a-DLL" */
+#   define NCURSES_EXPORT_GENERAL_IMPORT
+#   define NCURSES_EXPORT_GENERAL_EXPORT
+# else
+#   define NCURSES_EXPORT_GENERAL_IMPORT __declspec(dllimport)
+#   define NCURSES_EXPORT_GENERAL_EXPORT __declspec(dllexport)
+# endif
+# define NCURSES_API __cdecl
+#else
+# define NCURSES_EXPORT_GENERAL_IMPORT
+# define NCURSES_EXPORT_GENERAL_EXPORT
+# define NCURSES_API /* FIXME: __attribute__ ((cdecl)) is only available on x86 */
 #endif
 
 #endif /* NCURSES_DLL_H_incl */
diff --git a/include/ncurses_mingw.h b/include/ncurses_mingw.h
index fc77aca..8b11272 100644
--- a/include/ncurses_mingw.h
+++ b/include/ncurses_mingw.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2018,2020 Thomas E. Dickey                                     *
+ * Copyright 2018-2020,2021 Thomas E. Dickey                                *
  * Copyright 2008-2014,2017 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -28,10 +28,10 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Author: Juergen Pfeifer, 2008-on                                         * 
+ * Author: Juergen Pfeifer, 2008-on                                         *
  ****************************************************************************/
 
-/* $Id: ncurses_mingw.h,v 1.6 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: ncurses_mingw.h,v 1.7 2021/06/17 21:26:02 tom Exp $ */
 
 /*
  * This is a placeholder up to now and describes what needs to be implemented
@@ -67,14 +67,14 @@ struct termios
 };
 
 extern NCURSES_EXPORT(int)  _nc_mingw_tcsetattr(
-    int fd, 
-    int optional_actions, 
+    int fd,
+    int optional_actions,
     const struct termios* arg);
 extern NCURSES_EXPORT(int)  _nc_mingw_tcgetattr(
-    int fd, 
+    int fd,
     struct termios* arg);
 extern NCURSES_EXPORT(int)  _nc_mingw_tcflush(
-    int fd, 
+    int fd,
     int queue);
 extern NCURSES_EXPORT(void) _nc_set_term_driver(void* term);
 
diff --git a/include/term_entry.h b/include/term_entry.h
index df13f53..e2cf838 100644
--- a/include/term_entry.h
+++ b/include/term_entry.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2018-2019,2020 Thomas E. Dickey                                *
+ * Copyright 2018-2020,2021 Thomas E. Dickey                                *
  * Copyright 1998-2015,2017 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -33,7 +33,7 @@
  *     and: Thomas E. Dickey                        1998-on                 *
  ****************************************************************************/
 
-/* $Id: term_entry.h,v 1.59 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: term_entry.h,v 1.61 2021/09/04 10:52:55 tom Exp $ */
 
 /*
  *	term_entry.h -- interface to entry-manipulation code
@@ -142,7 +142,7 @@ extern NCURSES_EXPORT_VAR(ENTRY *) _nc_tail;
 
 /*
  * Note that WANTED and PRESENT are not simple inverses!  If a capability
- * has been explicitly cancelled, it's not considered WANTED.
+ * has been explicitly cancelled, it is not considered WANTED.
  */
 #define WANTED(s)	((s) == ABSENT_STRING)
 #define PRESENT(s)	(((s) != ABSENT_STRING) && ((s) != CANCELLED_STRING))
@@ -200,8 +200,8 @@ extern NCURSES_EXPORT(bool) _nc_entry_match (char *, char *);
 extern NCURSES_EXPORT(int) _nc_resolve_uses (bool); /* obs 20040705 */
 extern NCURSES_EXPORT(int) _nc_resolve_uses2 (bool, bool);
 extern NCURSES_EXPORT(void) _nc_free_entries (ENTRY *);
-extern NCURSES_IMPEXP void NCURSES_API (*_nc_check_termtype)(TERMTYPE *); /* obs 20040705 */
-extern NCURSES_IMPEXP void NCURSES_API (*_nc_check_termtype2)(TERMTYPE2 *, bool);
+extern NCURSES_IMPEXP void (NCURSES_API *_nc_check_termtype)(TERMTYPE *); /* obs 20040705 */
+extern NCURSES_IMPEXP void (NCURSES_API *_nc_check_termtype2)(TERMTYPE2 *, bool);
 
 /* trace_xnames.c */
 extern NCURSES_EXPORT(void) _nc_trace_xnames (TERMTYPE *);
diff --git a/include/termcap.h.in b/include/termcap.h.in
index dc8d8fc..7b7c703 100644
--- a/include/termcap.h.in
+++ b/include/termcap.h.in
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2018,2020 Thomas E. Dickey                                     *
+ * Copyright 2018-2020,2021 Thomas E. Dickey                                *
  * Copyright 1998-2000,2001 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -32,7 +32,7 @@
  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  ****************************************************************************/
 
-/* $Id: termcap.h.in,v 1.19 2020/02/02 23:34:34 tom Exp $ */
+/* $Id: termcap.h.in,v 1.20 2021/06/17 21:26:02 tom Exp $ */
 
 #ifndef NCURSES_TERMCAP_H_incl
 #define NCURSES_TERMCAP_H_incl	1
@@ -49,13 +49,13 @@ extern "C"
 
 #include <sys/types.h>
 
-#undef  NCURSES_OSPEED 
-#define NCURSES_OSPEED @NCURSES_OSPEED@ 
+#undef  NCURSES_OSPEED
+#define NCURSES_OSPEED @NCURSES_OSPEED@
 
 extern NCURSES_EXPORT_VAR(char) PC;
 extern NCURSES_EXPORT_VAR(char *) UP;
 extern NCURSES_EXPORT_VAR(char *) BC;
-extern NCURSES_EXPORT_VAR(NCURSES_OSPEED) ospeed; 
+extern NCURSES_EXPORT_VAR(NCURSES_OSPEED) ospeed;
 
 #if !defined(NCURSES_TERM_H_incl)
 extern NCURSES_EXPORT(char *) tgetstr (const char *, char **);
diff --git a/include/tic.h b/include/tic.h
index 8210936..36169f0 100644
--- a/include/tic.h
+++ b/include/tic.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2018-2019,2020 Thomas E. Dickey                                *
+ * Copyright 2018-2020,2021 Thomas E. Dickey                                *
  * Copyright 1998-2012,2017 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -34,7 +34,7 @@
  ****************************************************************************/
 
 /*
- * $Id: tic.h,v 1.81 2020/02/02 23:34:34 tom Exp $
+ * $Id: tic.h,v 1.84 2021/08/21 00:24:45 tom Exp $
  *	tic.h - Global variables and structures for the terminfo compiler.
  */
 
@@ -302,11 +302,11 @@ extern NCURSES_EXPORT_VAR(long) _nc_start_line;
 
 /* comp_error.c: warning & abort messages */
 extern NCURSES_EXPORT(const char *) _nc_get_source (void);
-extern NCURSES_EXPORT(void) _nc_err_abort (const char *const,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
+extern GCC_NORETURN NCURSES_EXPORT(void) _nc_err_abort (const char *const,...) GCC_PRINTFLIKE(1,2);
 extern NCURSES_EXPORT(void) _nc_get_type (char *name);
 extern NCURSES_EXPORT(void) _nc_set_source (const char *const);
 extern NCURSES_EXPORT(void) _nc_set_type (const char *const);
-extern NCURSES_EXPORT(void) _nc_syserr_abort (const char *const,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
+extern GCC_NORETURN NCURSES_EXPORT(void) _nc_syserr_abort (const char *const,...) GCC_PRINTFLIKE(1,2);
 extern NCURSES_EXPORT(void) _nc_warning (const char *const,...) GCC_PRINTFLIKE(1,2);
 extern NCURSES_EXPORT_VAR(bool) _nc_suppress_warnings;
 
@@ -337,7 +337,8 @@ extern NCURSES_EXPORT_VAR(const struct tinfo_fkeys) _nc_tinfo_fkeys[];
 
 extern NCURSES_EXPORT_VAR(int) _nc_tparm_err;
 
-extern NCURSES_EXPORT(int) _nc_tparm_analyze(const char *, char **, int *);
+extern NCURSES_EXPORT(int) _nc_tparm_analyze(TERMINAL *, const char *, char **, int *);
+extern NCURSES_EXPORT(void) _nc_reset_tparm(TERMINAL *);
 
 /* lib_trace.c */
 extern NCURSES_EXPORT_VAR(unsigned) _nc_tracing;
diff --git a/include/win32_curses.h b/include/win32_curses.h
new file mode 100644
index 0000000..0c807a0
--- /dev/null
+++ b/include/win32_curses.h
@@ -0,0 +1,75 @@
+/****************************************************************************
+ * Copyright 2018-2020,2021 Thomas E. Dickey                                *
+ * Copyright 2008-2014,2017 Free Software Foundation, Inc.                  *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Juergen Pfeifer, 2008-on                                         *
+ ****************************************************************************/
+
+/* $Id: win32_curses.h,v 1.3 2021/06/17 21:26:02 tom Exp $ */
+
+/*
+ * This is the interface we use on Windows to mimic the control of the settings
+ * of what acts like the classic TTY - the Windows Console.
+ */
+
+#if (defined(_WIN32) || defined(_WIN64))
+#ifndef _NC_WIN32_CURSES_H
+#define _NC_WIN32_CURSES_H 1
+
+struct winconmode
+{
+  unsigned long dwFlagIn;
+  unsigned long dwFlagOut;
+};
+
+extern NCURSES_EXPORT(void*) _nc_console_fd2handle(int fd);
+extern NCURSES_EXPORT(int)   _nc_console_setmode(void* handle, const struct winconmode* arg);
+extern NCURSES_EXPORT(int)   _nc_console_getmode(void* handle, struct winconmode* arg);
+extern NCURSES_EXPORT(int)   _nc_console_flush(void* handle);
+
+/*
+  A few definitions of Unix functions we need to emulate
+*/
+#define SIGHUP  1
+#define SIGKILL 9
+
+#undef  getlogin
+#define getlogin() getenv("USERNAME")
+
+#undef  ttyname
+#define ttyname(fd) NULL
+
+#undef sleep
+#define sleep(n) Sleep((n) * 1000)
+
+#undef gettimeofday
+#define gettimeofday(tv,tz) _nc_gettimeofday(tv,tz)
+
+#endif /* _NC_WIN32_CURSES_H */
+#endif /* _WIN32||_WIN64 */