RED32

The _RED32 function returns the red component intensity of a 32-bit image or surface color.

Syntax

red32color& = _RED32(rgbaColor&)

Description

• rgbaColor& is the 32-bit RGBA color value to retrieve the red component intensity value from.
• RGBA color values are returned by the _PALETTECOLOR, POINT, _RGB, _RGB32, _RGBA or _RGBA32 functions.
• LONG intensity values returned range from 0 (no intensity, not present) to 255 (full intensity).

Examples

• See the example in POINT.

See also

• Featured in our "Keyword of the Day" series
• _BLUE32, _GREEN32
• _RGB32, _RED

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