<s>
In	O
component-based	O
programming	O
(	O
Visual	B-Language
Basic	I-Language
,	O
.NET	B-Application
WinForms	B-Application
,	O
Gambas	B-Language
,	O
Delphi	B-Language
,	O
Lazarus	B-Language
etc	O
.	O
</s>
<s>
)	O
,	O
a	O
form	O
is	O
a	O
representation	O
of	O
a	O
GUI	B-Application
window	O
.	O
</s>
<s>
A	O
form	O
contains	O
components	O
and	O
controls	O
typically	O
including	O
"	O
OK	O
"	O
and	O
"	O
Cancel	O
"	O
buttons	O
,	O
these	O
objects	O
provide	O
a	O
high-level	O
abstraction	O
of	O
standard	O
or	O
custom	O
widgets	O
which	O
are	O
typically	O
much	O
easier	O
to	O
manipulate	O
than	O
the	O
GUI	B-Application
's	O
underlying	O
API	O
.	O
</s>
<s>
At	O
design	O
time	O
,	O
visual	O
controls	O
(	O
buttons	O
,	O
text	O
boxes	O
,	O
and	O
the	O
like	O
)	O
and	O
non-visual	O
components	O
(	O
timers	O
,	O
database	B-General_Concept
connections	I-General_Concept
,	O
layout	O
aids	O
and	O
so	O
on	O
)	O
are	O
placed	O
on	O
the	O
form	O
.	O
</s>
<s>
HTML	B-General_Concept
forms	I-General_Concept
are	O
conceptually	O
very	O
similar	O
.	O
</s>
