- V
-
- variable
- In programming languages, a language object that can take
different values, one at a time. The values of a variable
are usually restricted to a certain data type. I.
- VGA
- See video
graphics adapter.
- video attributes
- Characteristics of picture quality. The standard video
attributes are brightness, contrast, freeze, hue,
saturation, and sharpness.
- video
graphics adapter (VGA)
- A graphics controller for color displays. It displays
graphics with a resolution of 640 by 480 pixels in up to
256 colors. The pixel resolution of the video graphics
adapter is 4:4. See super video
graphics adapter.
- videodisc
- A disc on which programs have been recorded for playback
on a computer or a television set; a recording on a
videodisc. The most common format in the United States
and Japan is an NTSC signal recorded on the optical
reflective format.
- virtual function
- A function of a class that is declared with the keyword virtual.
The implementation that is executed when you make a call
to a virtual function depends on the type of the object
for which it is called. This is determined at run time.
- visible identifiers
- Identifiers defined in the current scope that are not
hidden by other identifiers of the same name in an inner
scope. An object is visible during its lifetime when the
scopes in which it is defined are open. See lifetime of an object.
- volatile
- An attribute of a data object that indicates that the
object is changeable beyond the control or detection of
the compiler. Any expression referring to a volatile
object, such as an assignment, is evaluated immediately.
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