Color Values
By default, Windows defines color as a combination of three primary colors
red, green, and blue. Windows identifies a color by giving it a color value
(sometimes called an RGB triplet), which consists of three 8-bit values
specifying the intensities of its color components. Black has the minimum intensity for
red, green, and blue, so the color value for black is (0, 0, 0). White has the
maximum intensity for red, green, and blue, so its color value is (255, 255,
255).
Note If image color matching is enabled, the definition of color and the meaning
of a color value depends on the type of color space that is currently set for
the device context.
Windows and applications use parameters and variables having the
COLORREF type to pass and store color values. For example, the
EnumObjects function identifies the color of each pen by setting the
lopnColor member in a
LOGPEN structure to a color value. Applications can extract the individual values of
the red, green, and blue components from a color value by using the
GetRValue,
GetGValue, and
GetBValue macros, respectively. Applications can create a color value from individual
component values by using the
RGB macro. When creating or examining a logical palette, an application uses the
RGBQUAD structure to define color values and to examine individual component values.
- Software for developers
-
Delphi Components
.Net Components
Software for Android Developers
- More information resources
-
MegaDetailed.Net
Unix Manual Pages
Delphi Examples
- Databases for Amazon shops developers
-
Amazon Categories Database
Browse Nodes Database
