NAME

RGBmode − sets a display mode that bypasses the color map

SPECIFICATION

C
RGBmode()

FORTRAN
subroutine RGBmod

Pascal
procedure RGBmode;

DESCRIPTION

There are three display modes: single buffer, double buffer, and RGB.  In RGB mode, the IRIS simultaneously writes and displays all bitplanes.  The system writes 8-bit values of red, green, and blue into the bitplanes; these values directly control the intensity of the color displayed on the monitor.  RGB mode is most useful when the system has 24 bitplanes; otherwise, in systems with fewer bitplanes, the first 16 are shared equally between red and green, and the last 8 define the blue component.  A 12-bitplane system provides one-fourth the maximum intensity in red and green, and no blue at all. 

You must call gconfig for RGBmode to execute. 

SEE ALSO

doublebuffer, gconfig, getdisplaymode, singlebuffer Programming Guide, Section 6.1, Display Modes

NOTE

This routine is available only in immediate mode. 

Do not use this routine while running the window manager. 

Version 3.6  —  December 20, 1987