Intel Extensible Firmware Interface - Manual (Page 313)

Protocols — Console Support
Version 1.10 12/01/02 10-19
SIMPLE_TEXT_OUTPUT.SetAttribute()
Summary
Sets the background and foreground colors for the OutputString() and ClearScreen()
functions.
Prototype
EFI_STATUS
(EFIAPI *EFI_TEXT_SET_ATTRIBUTE) (
IN SIMPLE_TEXT_OUTPUT_INTERFACE *This,
IN UINTN Attribute
);
Parameters
This A pointer to the SIMPLE_TEXT_OUTPUT_INTERFACE instance.
Type SIMPLE_TEXT_OUTPUT_INTERFACE is defined in the
“Related Definitions” section of Section 10.3.
Attribute The attribute to set. Bits 0..3 are the foreground color, and bits 4..6 are
the background color. All other bits are undefined and must be zero.
See “Related Definitions” below.
Related Definitions
//*******************************************************
// Attributes
//*******************************************************
#define EFI_BLACK
0x00
#define EFI_BLUE 0x01
#define EFI_GREEN
0x02
#define EFI_CYAN 0x03
#define
EFI_RED 0x04
#define EFI_MAGENTA 0x05
#define EFI_BROWN 0x06
#define EFI_LIGHTGRAY 0x07
#define EFI_BRIGHT 0x08
#define EFI_DARKGRAY 0x08
#define EFI_LIGHTBLUE 0x09
#define EFI_LIGHTGREEN 0x0A
#define EFI_LIGHTCYAN 0x0B
#define EFI_LIGHTRED 0x0C
#define EFI_LIGHTMAGENTA 0x0D
#define EFI_YELLOW 0x0E
#define EFI_WHITE 0x0F