The program presents the ways of mixing the colors

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Category: Programs in C, C++
fapa.pngProgram: Fapa.c,  Help.c,  Help.h,  Mys.c,  Mys.h
File exe: Fapa.exe
need: Egavga.bgi,  Help.txt,  Litt.chr,  Trip.chr

The program presents the ways of mixing the colors. It's base on the following methods

Models used:
RGB - red, green, blue
CMY - cyan, magenta, yellow
HSV - Hue saturation value
HLS - Hue lightness value 
// MYS.C                     Copyright (c) TrSek alias Zdeno Sekerak 
// Sucast programu Fapa.c. Obsahuje rutiny obsluhujuce mys.
//
// Datum:14.12.1994                             http://www.trsek.com 
 
#include <dos.h>
 
int inmys;	// globalna premenna urcujuca ci je aktivna mys
 
// inicializuje mys
void init_mys(void)
{
union REGS in,out;
 
  in.x.ax=0x0000;
  int86(0x33,&in,&out);
 
  if (out.x.ax==0) inmys=0;
	      else inmys=1;
 
  in.x.ax=0x0001;
  if (inmys)
     int86(0x33,&in,&out);
}
 
// nastavi suradnice mysi
void set_mys(int x, int y)
{
union REGS in,out;
 
  in.x.ax=0x0004;
  in.x.cx=x;
  in.x.dx=y;
  if (inmys)
     int86(0x33,&in,&out);
}
 
// zisti suradnice mysi
void getmys(int *but, int *x, int *y)
{
union REGS in,out;
 
  but=but;
  x=x;
  y=y;
 
  in.x.ax=0x0003;
  if (inmys)
  {
    int86(0x33,&in,&out);
    *but=out.x.bx;
    *x=rcmx(out.x.cx);
    *y=rcmy(out.x.dx);
  }
  else {
    *but=0;
    *x=0;
    *y=0;
  }
}
 
// zobrazi kurzor mysi
void zobmys(int zob)
{
union REGS in,out;
 
  if (zob) in.x.ax=0x0001;
      else in.x.ax=0x0002;
 
  if (inmys)
     int86(0x33,&in,&out);
}