GetRValue

  • Article

This macro retrieves an intensity value for the red component of a 32-bit red, green, blue (RGB) value.

BYTE GetRValue( 
DWORD rgb
);

Parameters

  • rgb
    Specifies an RGB color value.

Return Values

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.

The GetRValue macro is defined as follows.

#define GetRValue(rgb)   ((BYTE) (rgb))

Requirements

Runs on Versions Defined in Include Link to
Windows CE OS 1.0 and later Wingdi.h    

Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.

See Also

GetBValue, GetGValue, PALETTERGB, RGB

 Last updated on Tuesday, July 13, 2004

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