<s>
Turbo	B-Application
Vision	I-Application
is	O
a	O
character-mode	O
text	B-Application
user	I-Application
interface	I-Application
framework	O
included	O
with	O
Borland	B-Application
Pascal	I-Application
,	O
Turbo	B-Application
Pascal	I-Application
,	O
and	O
Borland	O
C++	B-Language
circa	O
1990	O
.	O
</s>
<s>
It	O
was	O
used	O
by	O
Borland	O
itself	O
to	O
write	O
the	O
integrated	B-Application
development	I-Application
environments	I-Application
(	O
IDE	B-Application
)	O
for	O
these	O
programming	O
languages	O
.	O
</s>
<s>
By	O
default	O
,	O
Turbo	B-Application
Vision	I-Application
applications	O
replicate	O
the	O
look	O
and	O
feel	O
of	O
these	O
IDEs	O
,	O
including	O
edit	O
controls	O
,	O
list	O
boxes	O
,	O
check	O
boxes	O
,	O
radio	O
buttons	O
and	O
menus	O
,	O
all	O
of	O
which	O
have	O
built-in	O
mouse	O
support	O
.	O
</s>
<s>
Later	O
it	O
was	O
deprecated	O
in	O
favor	O
of	O
Object	B-Language
Windows	I-Language
Library	I-Language
,	O
the	O
Win16	B-Library
API	I-Library
,	O
and	O
the	O
GUI	O
tools	O
of	O
Borland	B-Language
Delphi	I-Language
.	O
</s>
<s>
Around	O
1997	O
,	O
the	O
C++	B-Language
version	O
,	O
including	O
source	O
code	O
,	O
was	O
released	O
by	O
Borland	O
into	O
the	O
public	O
domain	O
and	O
is	O
currently	O
being	O
ported	O
and	O
developed	O
by	O
an	O
open-source	B-Application
community	O
on	O
SourceForge	B-Application
under	O
the	O
GPL	B-License
license	I-License
.	O
</s>
<s>
An	O
older	O
update	O
of	O
the	O
Borland	O
code	O
by	O
Sergio	O
Sigala	O
is	O
available	O
under	O
the	O
BSD	B-Operating_System
license	I-Operating_System
.	O
</s>
<s>
The	O
Pascal	B-Application
version	O
,	O
which	O
was	O
distributed	O
alongside	O
Borland	B-Application
Pascal	I-Application
7	O
on	O
a	O
"	O
bonus	O
"	O
disk	O
,	O
was	O
never	O
released	O
under	O
a	O
free	B-License
software	I-License
license	I-License
,	O
so	O
the	O
Free	B-Operating_System
Pascal	I-Operating_System
project	O
recreated	O
its	O
own	O
version	O
by	O
backporting	O
a	O
clone	O
made	O
by	O
Leon	O
de	O
Boer	O
that	O
ran	O
in	O
graphical	O
mode	O
back	O
to	O
textmode	O
.	O
</s>
<s>
The	O
textmode	O
IDE	B-Application
is	O
very	O
close	O
to	O
the	O
original	O
TP	O
environment	O
,	O
with	O
built-in	O
compiler	O
and	O
IDE	B-Application
much	O
closer	O
than	O
e.g.	O
</s>
<s>
RHIDE	O
,	O
and	O
supporting	O
functionality	O
like	O
code	B-Application
folding	I-Application
.	O
</s>
<s>
One	O
of	O
the	O
factors	O
limiting	O
Turbo	B-Application
Vision	I-Application
's	O
popularity	O
was	O
the	O
absence	O
of	O
Unicode	O
support	O
in	O
the	O
original	O
Borland	O
version	O
.	O
</s>
<s>
As	O
of	O
October	O
2020	O
,	O
there	O
are	O
Unicode	O
versions	O
for	O
C++	B-Language
and	O
Free	B-Operating_System
Pascal	I-Operating_System
.	O
</s>
