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, : . (, , ) (, , , ), . , 3840, 2400 (); 320×200.
Microsoft Visual C++ MFC 䳿 EGAVGA.BGI, , 2 VGAHI.
640×480 , 16
() , () . (0,0).
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// ( )
conio.h :
| Black | DarkGray | - | ||||
| Blue | LightBlue | - | ||||
| Green | LightGreen | - | ||||
| Cyan | LightCyan | - | ||||
| Red | LightRed | |||||
| Magenta | LightMagenta | - | ||||
| Brown | Yellow | |||||
| LightGray | - | White | ||||
| Blink | ||||||
- , BLACK LIGHTGRAY.
textcolor();
, textbackground();
lowvideo() ( ), highvideo() ( ) normvideo() ( , ). :
textbackground(BROWN); // }
textcolor(WHITE); // }
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textcolor(YELLOW+BLINK); // }
conio.h , textattr, . (, , , ).
() textattr, :
- , (1), (0);
- ( 0..3) :
o 0- ;
o 1- ;
o 2- ;
o 3- ;
- ( 4..6) :
o 4- ;
o 5- ;
o 6- ;
- (7-) .
12-1: ,
:
#include<graphics.h>
#include<stdlib.h>
#include<stdio.h>
#include<conio.h>
#include<math.h>
#include<dos.h>
int main ()
{
clrscr();
int gdriver=DETECT,gmode, errorcode;
int size,i;
float x,y,t;
initgraph(&gdriver, &gmode, "");
errorcode=graphresult();
if (errorcode!=grOk)
{
printf("Graphics error: %s \n",grapherrormsg(errorcode));
printf("Pres any key to halt:");
getch();
exit(1);
}
/* line(0,0,getmaxx(),getmaxy());
moveto(300,300);
ellipse(300,300,35,150,50,25);
ellipse(340,310,90,180,50,25);
ellipse(308,300,150,200,20,25);
ellipse(275,335,73,113,50,50);
getch();
linerel(25,-25);
bar3d(320,240,360,280,10,50);
size=imagesize(320,220,380,280);
int *p=new[size];
getimage(320,220,380,280,p);
putimage(520,240,p,1);
for(i=1;i,500;i+=5)
{ putimage(x,y,p,1);
t=i/180.0*M_PI;
x=100*sin(t)+320;
y=240-100*cos(t);
putimage(x,y,p,1);
delay(50);
}
getch();
closegraph();
delete p;*/
moveto(300,250);
linerel(30,0);
linerel(-10,10);
linerel(30,30);
linerel(-10,10);
linerel(-30,-30);
linerel(-10,10);
linerel(0,-30);
setfillstyle(2,8);
floodfill(305,255,WHITE);
getch();
return 0;
}
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12-2:
:
#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<stdlib.h>
#include<graphics.h>
#include<math.h>
#include<dos.h>
void main()
{
float x,y;
int xe,ye;
int gd=DETECT,gm,er;
int *p;
initgraph(&gd,&gm,"");
moveto(100,100);
linerel(30,0);
linerel(-10,10);
linerel(30,30);
linerel(-10,10);
linerel(-30,-30);
linerel(-10,10);
linerel(0,-30);
setfillstyle(2,9);
floodfill(105,105,WHITE);
int size=imagesize(100,100,150,150);
p=new[size];
getimage(100,100,150,150,p);
getch();
// putimage(250,200,p,0);
line(10,240,630,240);
line(320,10,320,470);
outtextxy(330, 0, "Y");
outtextxy(630, 250, "X");
outtextxy(310, 250, "0");
float t=0,
dt=0.01;
double r=100.0;
moveto(320,240);
sound(300);
while (t<=2*M_PI)
{
putimage(xe,ye,p,1);
x=r*pow(cos(t),2);
y=r*pow(sin(t),2);
xe=int(x+320);
ye=int(240-y);
putimage(xe,ye,p,1);
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lineto(xe,ye);
t+=dt;
delay(10);
}
nosound;
getch();
closegraph();
}
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12-3: , ,
:
#include<conio.h>
#include<math.h>
#include<dos.h>
#include<stdio.h>
#define ARROW_size 40
void draw_arrow (int x, int y);
int main (void)
{
int gdriver=DETECT, gmode, errorcode;
void*arrow;
int Y_dek,x_dek,x,y,maxx;
unsigned int size;
initgraph (&gdriver,&gmode,);
errorcode=graphresult();
if (errorcode!=gr0k)
{
printf(Graphics error: %s\n,grapherrormsg(errorcode));
printf( Press any key to halt:);
getch();
exit(1);
}
maxx=getmaxx();
x=0;
y=getmaxy()/5;
draw_arrow(x,y);
size=imagesize(x,y-ARROW_SIZE,x+(4*ARROW_SIZE), y+ARROW_SIZE);
arrow=malloc (size);
getimage (x,y-ARROW_SIZE, x+(4*ARROW_SIZE), y+ARROW_SIZE, arrow);
putimage(x,y-ARROW_SIZE, arrow, XOR_put);
float t=0.0, dt=0.01;
float r=100;
x_ek, y_ek;
moveto(r*pow(cos(t),3)+320,240-r*sin(t)*cos(t)*cos(t);
while(t<=9.0)
{
putimage(x_ek-100,y_ek-45, arrow, XOR_PUT);
x_dek=r*pow(cos(t),3);
y_dek=r*sin(t)*cos(t)*cos(t);
x_ek=(x_dek+320);
y_ek=(240-y_dek);
sound(6661299*(x_ek+(-y_ek)));
lineto (x_ek; y_ek);
putimage (x_ek-100; y_ek-45; arrow, XOR_PUT);
delay (1);
t=t+dt;
}
nosound ();
getch ();
free(arrow);
closegraph ();
return 0;
}
void draw_arrow (int x, int y)
{
line(20,240,620,240);
line (329,20,320,460);
moveto (50,50);
linerel(40,-40);
