The GetRValue macro retrieves an intensity value for the red component of a red, green, blue (RGB) value.

Syntax

BYTE GetRValue(
    DWORD rgb
);

Parameters

rgb

Specifies an RGB color value.

Return Value

The return value is the intensity of the red component of the specified RGB color.

Remarks

The intensity value is in the range 0 through 255.

Requirements

See Also

Colors Overview

Color Macros

GetBValue

GetGValue

PALETTEINDEX

PALETTERGB

RGB

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Build date: 5/4/2010