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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 GetRValuemacro 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