GetGValue

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

BYTE GetGValue(
  DWORD rgb     // 32-bit RGB value
);
 

Parameters

rgb

Specifies an RGB color value.

Return Values

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

Remarks

The intensity value is in the range 0 through 255.

The GetGValue macro is defined as follows:

#define GetGValue(rgb)   ((BYTE) (((WORD) (rgb)) >> 8)) 
 

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Requires version 1.0 or later.
  Header: Declared in wingdi.h.

See Also

Colors Overview, Color Macros, GetBValue, GetRValue, PALETTEINDEX, PALETTERGB, RGB