<s>
PDCurses	B-Device
is	O
a	O
public	O
domain	O
software	O
programming	B-Library
library	I-Library
for	O
DOS	B-Device
,	O
OS/2	B-Application
,	O
Windows	O
,	O
X11	B-Operating_System
and	O
SDL2	B-Operating_System
.	O
</s>
<s>
It	O
is	O
a	O
continuation	O
of	O
the	O
original	O
curses	B-Device
system	O
-	O
while	O
development	O
of	O
curses	B-Device
ended	O
in	O
the	O
mid-1990s	O
,	O
work	O
on	O
ncurses	B-Language
and	O
PDCurses	B-Device
continued	O
.	O
</s>
<s>
PDCurses	B-Device
implements	O
most	O
of	O
the	O
functions	O
available	O
in	O
the	O
original	O
X/Open	O
and	O
UNIX	O
System	O
V	O
R4	O
curses	B-Device
.	O
</s>
<s>
Development	O
started	O
in	O
1987	O
to	O
support	O
The	B-Language
Hessling	I-Language
Editor	I-Language
.	O
</s>
<s>
The	O
X11	B-Operating_System
port	O
lets	O
one	O
recompile	O
existing	O
text-mode	O
curses	B-Device
programs	O
to	O
produce	O
native	O
X11	B-Operating_System
applications	O
.	O
</s>
