This document provides examples of graphics programming in C using functions from the graphics.h library. It includes examples of drawing basic shapes like lines, rectangles, circles, and arcs. It also includes examples of more complex graphics like animations of a moving car, smiling face, and countdown timer. The document lists many common graphics functions from graphics.h like circle, line, rectangle, setcolor and includes short code samples to demonstrate their basic usage.

1. C graphics tutorial
http://www.programmingsimplified.com/

2. • graphics programming for developing your own games, in making
projects, for animation etc.
• C graphics programs
– C graphics functions
– draw shapes
– Moving car
– Smiling face animation
– Paint program in c
– Press me button game
– bar chart
– pie chart
– 3d bar chart
– captcha
– Circles in circles
– Countdown
– Web browser program
– Traffic Light Simulation
– Mouse pointer restricted in circle
– Captcha program
•

3. functions of graphics.h
• arc,bar, bar3d, circle, cleardevice, closegraph, drawpoly,
ellipse
• Fillellipse,fillpoly,floodfill,getarccords,getbkcolor, getcolor
• Getdrivername, getimage, getmaxcolor, getmaxx, getmaxy
• Getpixel, getx, gety, graphdefaults
• grapherrormsg
• imagesize
• line
• lineto
• linerel
• moveto
• moverel
• outtext
• outtextxy
• pieslice
• putimage
• putpixel
• rectangle
• sector
• setbkcolor
• setcolor
• setfillstyle
• setlinestyle
• settextstyle
• setviewport
• textheight
• textwidth
Ex1: void arc(int x, int y, int stangle, int endangle, int radius);
#include<graphics.h>
#include<conio.h>
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:TCBGI");
arc(100, 100, 0, 135, 50);
getch();
closegraph();
return 0;
}
Ex2: void bar(int left, int top, int right, int bottom);
#include <graphics.h>
#include <conio.h>
main() {
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:TCBGI");
bar(100, 100, 200, 200);
getch();
closegraph();
return 0; }

4. • Open TC folder-> after opening you will see a folder
with name BGI open Bgi folder->copy EGAVGA.BGI
& CGA.BGI & paste these two files into Bin Folder…
How to use graphic

5. Ex: void bar3d(int left, int top, int right, int bottom, int
depth, int topflag);
#include<graphics.h>
#include<conio.h>
main()
{ int gd = DETECT,gm;
initgraph(&gd, &gm, "C:TCBGI");
bar3d(100, 100, 200, 200, 20, 1);
getch();
closegraph();
return 0; }
Ex: void circle(int x, int y, int radius);
#include<graphics.h>
#include<conio.h>
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:TCBGI");
circle(100, 100, 50);
getch();
closegraph();
return 0;
}
EX:void cleardevice();
include<graphics.h>
#include<conio.h>
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:TCBGI");
outtext("Press any key to clear the screen.");
getch();
cleardevice();
outtext("Press any key to exit...");
getch();
closegraph();
return 0;
}
EX:
#include<graphics.h>
#include<conio.h>
main()
{
int gd = DETECT, gm;
initgraph(&gd, &gm, "C:TCBGI");
outtext("Press any key to clear the screen.");
getch();
cleardevice();
outtext("Press any key to exit...");
getch();
closegraph();
return 0;
}

6. #include<graphics.h>
#include<conio.h>
#include<stdlib.h>
main()
{
int gd = DETECT, gm, area, temp1, temp2, left = 25, top = 75;
void *p;
initgraph(&gd,&gm,"C:TCBGI");
setcolor(YELLOW);
circle(50,100,25);
setfillstyle(SOLID_FILL,YELLOW);
floodfill(50,100,YELLOW);
setcolor(BLACK);
setfillstyle(SOLID_FILL,BLACK);
fillellipse(44,85,2,6);
fillellipse(56,85,2,6);
ellipse(50,100,205,335,20,9);
ellipse(50,100,205,335,20,10);
ellipse(50,100,205,335,20,11);
area = imagesize(left, top, left + 50, top + 50);
p = malloc(area);
setcolor(WHITE);
settextstyle(SANS_SERIF_FONT,HORIZ_DIR,2);
outtextxy(155,451,"Smiling Face Animation");
setcolor(BLUE);
rectangle(0,0,639,449);
while(!kbhit())
{
temp1 = 1 + random ( 588 );
temp2 = 1 + random ( 380 );
getimage(left, top, left + 50, top + 50, p);
putimage(left, top, p, XOR_PUT);
putimage(temp1 , temp2, p, XOR_PUT);
delay(100);
left = temp1;
top = temp2;
}
getch();
closegraph();
return 0;
}

7. #include<graphics.h>
#include<conio.h>
main()
{
int gd = DETECT,gm,left=100,top=100,right=200,bottom=200,x=
300,y=150,radius=50;
initgraph(&gd, &gm, "C:TCBGI");
rectangle(left, top, right, bottom);
circle(x, y, radius);
bar(left + 300, top, right + 300, bottom);
line(left - 10, top + 150, left + 410, top + 150);
ellipse(x, y + 200, 0, 360, 100, 50);
outtextxy(left + 100, top + 325, "My First C Graphics Program");
getch();
closegraph();
return 0;
}
Draw shapes using c graphics

8. #include <graphics.h>
#include <dos.h>
#include <conio.h>
main()
{ int i, j = 0, gd = DETECT, gm;
initgraph(&gd,&gm,"C:TCBGI");
settextstyle(DEFAULT_FONT,HORIZ_DIR,2);
outtextxy(25,240,"Press any key to view the moving car");
getch();
setviewport(0,0,639,440,1);
for( i = 0 ; i <= 420 ; i = i + 10, j++ ){
rectangle(50+i,275,150+i,400);
rectangle(150+i,350,200+i,400);
circle(75+i,410,10);
circle(175+i,410,10);
setcolor(j);
delay(100);
if( i == 420 ) break;
clearviewport();
}
getch();
closegraph();
return 0;
}

10. Press me button game in c, download press-me-button game

15. #include<graphics.h>
#include<dos.h>
#include<conio.h>
main()
{
int gd = DETECT, gm, i;
char a[5];
initgraph( &gd, &gm, "C:TCBGI");
settextjustify( CENTER_TEXT, CENTER_TEXT );
settextstyle(DEFAULT_FONT,HORIZ_DIR,3);
setcolor(RED);
for(i = 30 ; i >=0 ; i--)
{
sprintf(a,"%d",i);
outtextxy(getmaxx()/2, getmaxy()/2, a);
delay(1000);
if ( i == 0 ) break;
cleardevice();
}
getch();
closegraph();
return 0;
}
C program countdown code

16. web browser project in c, c program to open a website/url

17. traffic light program in c, traffic light simulation

18. c program to restrict mouse pointer in a circle