<s>
gtkmm	B-Language
(	O
formerly	O
known	O
as	O
gtk--	B-Language
or	O
gtk	B-Application
minus	O
minus	O
)	O
is	O
the	O
official	O
C++	B-Language
interface	O
for	O
the	O
popular	O
GUI	B-Application
library	O
GTK	B-Application
.	O
</s>
<s>
gtkmm	B-Language
is	O
free	B-Application
software	I-Application
distributed	O
under	O
the	O
GNU	B-Application
Lesser	I-Application
General	I-Application
Public	I-Application
License	I-Application
(	O
LGPL	B-Application
)	O
.	O
</s>
<s>
gtkmm	B-Language
allows	O
the	O
creation	O
of	O
user	O
interfaces	O
either	O
in	O
code	O
or	O
with	O
the	O
Glade	B-Language
Interface	I-Language
Designer	I-Language
,	O
using	O
the	O
Gtk::Builder	O
class	O
.	O
</s>
<s>
Other	O
features	O
include	O
typesafe	O
callbacks	O
,	O
a	O
comprehensive	O
set	O
of	O
graphical	O
control	O
elements	O
,	O
and	O
the	O
extensibility	O
of	O
widgets	O
via	O
inheritance	B-Language
.	O
</s>
<s>
Because	O
gtkmm	B-Language
is	O
the	O
official	O
C++	B-Language
interface	O
of	O
the	O
GUI	B-Application
library	O
GTK	B-Application
,	O
C++	B-Language
programmers	O
can	O
use	O
the	O
common	O
OOP	B-Language
techniques	O
such	O
as	O
inheritance	B-Language
,	O
and	O
C++	B-Language
-specific	O
facilities	O
such	O
as	O
STL	B-Application
(	O
In	O
fact	O
,	O
many	O
of	O
the	O
gtkmm	B-Language
interfaces	O
,	O
especially	O
those	O
for	O
widget	O
containers	B-Application
,	O
are	O
designed	O
to	O
be	O
similar	O
to	O
the	O
Standard	B-Application
Template	I-Application
Library	I-Application
(	O
STL	B-Application
)	O
)	O
.	O
</s>
<s>
Main	O
features	O
of	O
gtkmm	B-Language
are	O
listed	O
as	O
follows	O
:	O
</s>
<s>
Use	O
inheritance	B-Language
to	O
derive	O
custom	O
widgets	O
.	O
</s>
<s>
Type-safe	O
signal	B-Application
handlers	I-Application
,	O
in	O
standard	O
C++	B-Language
.	O
</s>
<s>
Polymorphism	B-Application
.	O
</s>
<s>
Use	O
of	O
Standard	O
C++	B-Language
Library	O
,	O
including	O
strings	O
,	O
containers	B-Application
,	O
and	O
iterators	O
.	O
</s>
<s>
Complete	O
C++	B-Language
memory	O
management	O
.	O
</s>
<s>
Object	B-Language
composition	I-Language
.	O
</s>
<s>
Full	O
use	O
of	O
C++	B-Language
namespaces	O
.	O
</s>
<s>
Cross-platform	O
:	O
Linux	B-Application
(	O
gcc	B-Application
,	O
LLVM	B-Application
)	O
,	O
FreeBSD	B-Operating_System
(	O
gcc	B-Application
,	O
LLVM	B-Application
)	O
,	O
NetBSD	B-Device
(	O
gcc	B-Application
)	O
,	O
Solaris	B-Application
(	O
gcc	B-Application
,	O
Forte	B-Protocol
)	O
,	O
Win32	B-Library
(	O
gcc	B-Application
,	O
MSVC++	B-Application
)	O
,	O
macOS	B-Application
(	O
gcc	B-Application
)	O
,	O
others	O
.	O
</s>
<s>
This	O
is	O
usually	O
done	O
using	O
a	O
simple	O
makefile	B-Application
.	O
</s>
<s>
Some	O
notable	O
applications	O
that	O
use	O
gtkmm	B-Language
include	O
:	O
</s>
<s>
Inkscape	B-Application
Vector	O
graphics	O
drawing	O
.	O
</s>
<s>
Workrave	B-Language
Assists	O
in	O
recovery	O
and	O
prevention	O
of	O
RSI	O
.	O
</s>
<s>
GParted	B-Application
disk	O
partitioning	O
tool	O
.	O
</s>
<s>
Nemiver	B-Language
GUI	B-Application
for	O
the	O
GNU	O
debugger	O
gdb	O
.	O
</s>
<s>
PulseAudio	B-Library
tools	O
:	O
pavucontrol	O
,	O
paman	O
,	O
paprefs	O
pavumeter	O
,	O
</s>
<s>
MySQL	B-Language
Workbench	I-Language
Administrator	O
Database	O
GUI	B-Application
.	O
</s>
<s>
Ardour	B-Language
Open	O
Source	O
digital	O
audio	O
workstation	O
(	O
DAW	O
)	O
for	O
Linux	B-Application
and	O
MacOS	B-Application
.	O
</s>
<s>
Gnote	B-Language
desktop	O
notetaking	O
application	O
.	O
</s>
<s>
VMware	B-Operating_System
Workstation	I-Operating_System
and	O
VMware	B-Operating_System
Player	I-Operating_System
both	O
use	O
gtkmm	B-Language
for	O
their	O
Linux	B-Application
ports	O
.	O
</s>
