PALETTERGB

  • Article

This macro accepts three values that represent the relative intensities of red, green, and blue and returns a palette-relative RGB specifier consisting of 2 in the high-order byte and an RGB value in the three low-order bytes (with a value representing the intensity of red, green, or blue in each of the bytes). An application using a color palette can pass this specifier, instead of an explicit RGB value, to functions that expect a color.

COLORREF PALETTERGB( 
  BYTE bRed, 
  BYTE bGreen, 
  BYTE bBlue
);

Parameters

  • bRed
    Specifies the intensity of the red color field.
  • bGreen
    Specifies the intensity of the green color field.
  • bBlue
    Specifies the intensity of the blue color field.

Return Values

The return value is a palette-relative RGB specifier. For output devices that support logical palettes, the system matches a palette-relative RGB value to the nearest color in the logical palette of the device context as though the application had specified an index to that palette entry. If an output device does not support a system palette, the system uses the palette-relative RGB as though it were a conventional RGB DWORD returned by the RGB macro.

Remarks

The PALETTERGB macro is defined as follows.

#define PALETTERGB(r, g, b)  (0x02000000 | RGB(r, g, b))

Requirements

OS Versions: Windows CE 1.0 and later.
Header: Windows.h.

See Also

RGB | GDI Macros

Last updated on Wednesday, April 13, 2005

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