bruce@ssc-vax.UUCP (Bruce Stock) (05/01/90)
Thanks to all who replied to my original query: >Is the standard VGA palette (16 out of 64 colors) in 640x480 mode fixed, or is >there a way to coax a 16 level gray scale out of it? I suppose I should have realized that the 18 bit VGA palette was being used, even in 16 color mode. For general interest, the resulting code (based on an elegant suggestion by psiesta.psi.siemens.com!torkil) is, for Turbo C 2.0: #include <graphics.h> struct palettetype pal16; getpalette(&pal16); /* read the 16 palette registers to find out WHICH of the 18 bit registers are being used*/ for(i=0; i<16; i++) /* set up the 16 level gray scale */ setrgbpalette(pal16.colors[i],4*i,4*i,4*i);