Easy Logic Programs

Monday, 13 February 2012

web browser

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<graphics.h>
#include<dos.h>
#include<string.h>

void initialize_graphics_mode();
int get_key();
void draw();

union REGS i, o;

main()
{
   int key, i = 0, xpos, ypos, button;
   char arr[200], temp[5], *ptr;
   char a[] = "C:\\Progra~1\\Mozill~1\\firefox ";

   strcpy(arr,a);

   i = strlen(a);

   initialize_graphics_mode();

   draw();

   while(1)
   {
      if(kbhit())
         key = get_key();

      if((key>=97&&key<=122)||(key>=65&&key<=90)||key==46||key==47||key==63)
      {
         arr[i] = key;
         sprintf(temp,"%c",arr[i]);
         outtext(temp);
         if(getx()>470)
         {
            clearviewport();
            moveto(5,2);
         }
         i++;
      }
      else if ( key == 13 )
      {
         arr[i] = '\0';
         system(arr);
         break;
      }
      else if ( key == 27 )
      {
         closegraph();
         exit(EXIT_SUCCESS);
      }
      if(button==1&&xpos>=150&&xpos<=480&&ypos>=300&&ypos<=330)
      {
         system("C:\\Progra~1\\Mozill~1\\firefox www.programmingsimplified.com");
         break;
      }
      key = -1;
   }

   closegraph();
   return 0;
}

void initialize_graphics_mode()
{
   int gd = DETECT, gm, errorcode;

   initgraph(&gd,&gm,"C:\\TC\\BGI");
   errorcode = graphresult();

   if( errorcode != grOk )
   {
      printf("Graphics error : %s\n",grapherrormsg(errorcode));

      printf("Press any key to exit...\n");
      getch();
      exit(EXIT_FAILURE);
   }
}

int get_key()
{
   i.h.ah = 0;
   int86(22,&i,&o);

   return( o.h.al );
}

void draw()
{
   settextstyle(SANS_SERIF_FONT,HORIZ_DIR,2);
   outtextxy(275,11,"Web Browser");
   outtextxy(155,451,"www.programmingsimplified.com");
   outtextxy(5,105,"Enter URL : ");
   rectangle(120,100,600,130);
   setviewport(121,101,599,129,1);
   moveto(5,1);
}

traffic light simulation

#include<graphics.h>
#include<conio.h>
#include<dos.h>
#include<stdlib.h>
 
main()
{
   int gd = DETECT, gm, midx, midy;
 
   initgraph(&gd, &gm, "C:\\TC\\BGI");
 
   midx = getmaxx()/2;
   midy = getmaxy()/2;
 
   setcolor(RED);
   settextstyle(SCRIPT_FONT, HORIZ_DIR, 3);
   settextjustify(CENTER_TEXT, CENTER_TEXT);
   outtextxy(midx, midy-10, "Traffic Light Simulation");
   outtextxy(midx, midy+10, "Press any key to start");
   getch();
   cleardevice();
   setcolor(WHITE);
   settextstyle(DEFAULT_FONT, HORIZ_DIR, 1);
   rectangle(midx-30,midy-80,midx+30,midy+80);
   circle(midx, midy-50, 22);
   setfillstyle(SOLID_FILL,RED);
   floodfill(midx, midy-50,WHITE);
   setcolor(BLUE);
   outtextxy(midx,midy-50,"STOP");
   delay(2000);
   graphdefaults();
   cleardevice();
   setcolor(WHITE);
   rectangle(midx-30,midy-80,midx+30,midy+80);
   circle(midx, midy, 20);
   setfillstyle(SOLID_FILL,YELLOW);
   floodfill(midx, midy,WHITE);
   setcolor(BLUE);
   outtextxy(midx-18,midy-3,"READY");
 
   delay(2000);
   cleardevice();
   setcolor(WHITE);
   rectangle(midx-30,midy-80,midx+30,midy+80);
   circle(midx, midy+50, 22);
   setfillstyle(SOLID_FILL,GREEN);
   floodfill(midx, midy+50,WHITE);
   setcolor(BLUE);
   outtextxy(midx-7,midy+48,"GO");
   setcolor(RED);
   settextstyle(SCRIPT_FONT, HORIZ_DIR, 4);
   outtextxy(midx-150, midy+100, "Press any key to exit...");
 
   getch();
   closegraph();
   return 0;
}

Press me button game in c

#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<graphics.h>
#include<stdlib.h>
 
union REGS i, o;
int left = 265, top = 250;
 
void initialize_graphics_mode()
{
   int gd = DETECT, gm, error;
 
   initgraph(&gd,&gm,"C:\\TC\\BGI");
 
   error = graphresult();
 
   if( error != grOk )
   {
   perror("Error ");
   printf("Press any key to exit...\n");
   getch();
   exit(EXIT_FAILURE);
   }
}
 
void showmouseptr()
{
   i.x.ax = 1;
   int86(0x33,&i,&o);
}
 
void hidemouseptr()
{
   i.x.ax = 2;
   int86(0x33,&i,&o);
}
 
void getmousepos(int *x,int *y)
{
   i.x.ax = 3;
   int86(0x33,&i,&o);
 
   *x = o.x.cx;
   *y = o.x.dx;
}
 
void draw_bar()
{
   hidemouseptr();
   setfillstyle(SOLID_FILL,CYAN);
   bar(190,180,450,350);
   showmouseptr();
}
 
void draw_button(int x, int y)
{
   hidemouseptr();
   setfillstyle(SOLID_FILL,MAGENTA);
   bar(x,y,x+100,y+30);
   moveto(x+5,y);
   setcolor(YELLOW);
   outtext("Press me");
   showmouseptr();
}
 
void draw()
{
   settextstyle(SANS_SERIF_FONT,HORIZ_DIR,2);
   outtextxy(155,451,"www.programmingsimplified.com");
   setcolor(BLUE);
   rectangle(0,0,639,450);
   setcolor(RED);
   outtextxy(160,25,"Try to press the \"Press me\" button");
   outtextxy(210,50,"Press escape key to exit");
   setfillstyle(XHATCH_FILL,GREEN);
   setcolor(BLUE);
   bar(1,1,75,449);
   bar(565,1,638,449);
   showmouseptr();
   draw_bar();
   draw_button(left,top);
}
 
void initialize()
{
   initialize_graphics_mode();
 
   if( !initmouse() )
   {
   closegraph();
   printf("Unable to initialize the mouse");
   printf("Press any key to exit...\n");
   getch();
   exit(EXIT_SUCCESS);
   }
 
   draw();
}
 
int initmouse()
{
   i.x.ax = 0;
   int86(0x33,&i,&o);
   return ( o.x.ax );
}
 
void get_input()
{
   int x, y;
 
   while(1)
   {
      getmousepos(&x,&y);
 
      /* mouse pointer in left of button */
 
      if( x >= (left-3) && y >= (top-3) && y <= (top+30+3) && x < left )
      {
         draw_bar();
         left = left + 4;
 
         if( left > 350 )
            left = 190;
 
         draw_button(left,top);
      }
 
      /* mouse pointer in right of button */
 
      else if( x <= (left+100+3) && y >= (top-3) && y <= (top+30+3) && x>(left+100))
      {
         draw_bar();
         left = left - 4;
 
         if( left < 190 )
            left = 350;
 
         draw_button(left,top);
      }
 
      /* mouse pointer above button */
 
      else if( x >= (left-3) && y >= (top-3) && y < (top) && x<=(left+100+3))
      {
         draw_bar();
         top = top + 4;
 
         if( top > 320 )
            top = 180;
 
         draw_button(left,top);
      }
 
      /* mouse pointer below button */
 
      else if( x >= (left-3) && y > (top+30) && y <= (top+30+3) && x<=(left+100+3))
      {
         draw_bar();
         top = top - 4;
 
         if( top < 180 )
            top = 320;
 
         draw_button(left,top);
      }
 
      if(kbhit())
      {
         if( getkey() == 1 )
            exit(EXIT_SUCCESS);
      }
   }
}
 
int getkey()
{
   i.h.ah = 0;
   int86(22,&i,&o);
 
   return( o.h.ah );
}
 
main()
{
   initialize();
 
   get_input();
   return 0;
}

paint program

#include<graphics.h>
#include<dos.h>
#include<math.h>
#include<stdlib.h>
#include<stdio.h>
#include<conio.h>
 
union REGS i, o;
int leftcolor[15];
 
int get_key()
{
   union REGS i,o;
 
   i.h.ah = 0;
   int86(22,&i,&o);
 
   return ( o.h.ah );
}
 
void draw_color_panel()
{
   int left, top, c, color;
 
   left = 100;
   top = 436;
 
   color = getcolor();
   setcolor(GREEN);
   rectangle(4,431,635,457);
   setcolor(RED);
   settextstyle(TRIPLEX_FONT,0,2);
   outtextxy(10,431,"Colors : ");
 
   for( c = 1 ; c <= 15 ; c++ )
   {
      setfillstyle(SOLID_FILL, c);
      bar(left, top, left+16, top+16);
      leftcolor[c-1] = left;
      left += 26;
   }
 
   setcolor(color);
}
 
void draw_shape_panel()
{
   int left, top, c, color;
 
   left = 529;
   top = 45;
 
   color = getcolor();
   setcolor(GREEN);
   rectangle(525,40,633,255);
 
   for( c = 1 ; c <= 7 ; c++ )
   {
      rectangle(left, top, left+100, top+25);
      top += 30;
   }
   setcolor(RED);
   outtextxy(530,45,"Bar");
   outtextxy(530,75,"Line");
   outtextxy(530,105,"Pixel");
   outtextxy(530,135,"Ellipse");
   outtextxy(530,165,"Freehand");
   outtextxy(530,195,"Rectangle");
   outtextxy(530,225,"Clear");
   setcolor(color);
}
 
void change_color(int x, int y)
{
   int c;
 
   for( c = 0 ; c <= 13 ; c++ )
   {
      if( x > leftcolor[c] && x < leftcolor[c+1] && y > 437 && y < 453 )
         setcolor(c+1);
      if( x > leftcolor[14] && x < 505 && y > 437 && y < 453 )
         setcolor(WHITE);
   }
}
 
char change_shape(int x, int y)
{
   if ( x > 529 && x < 625 && y > 45 && y < 70 )
      return 'b';
   else if ( x > 529 && x < 625 && y > 75 && y < 100 )
      return 'l';
   else if ( x > 529 && x < 625 && y > 105 && y < 130 )
      return 'p';
   else if ( x > 529 && x < 625 && y > 135 && y < 160 )
      return 'e';
   else if ( x > 529 && x < 625 && y > 165 && y < 190 )
      return 'f';
   else if ( x > 529 && x < 625 && y > 195 && y < 220 )
      return 'r';
   else if ( x > 529 && x < 625 && y > 225 && y < 250 )
      return 'c';
}
 
void showmouseptr()
{
   i.x.ax = 1;
   int86(0x33,&i,&o);
}
 
void hidemouseptr()
{
   i.x.ax = 2;
   int86(0x33,&i,&o);
}
 
void restrictmouseptr( int x1, int y1, int x2, int y2)
{
   i.x.ax = 7;
   i.x.cx = x1;
   i.x.dx = x2;
   int86(0x33,&i,&o);
 
   i.x.ax = 8;
   i.x.cx = y1;
   i.x.dx = y2;
   int86(0x33,&i,&o);
}
 
void getmousepos(int *button,int *x,int *y)
{
   i.x.ax = 3;
   int86(0x33,&i,&o);
 
   *button = o.x.bx;
   *x = o.x.cx;
   *y = o.x.dx;
}
 
main()
{
   int gd = DETECT,gm;
 
   int maxx,maxy,x,y,button,prevx,prevy,temp1,temp2,key,color;
   char ch = 'f' ;            // default free-hand drawing
 
   initgraph(&gd,&gm,"C:\\TC\\BGI");
 
   maxx = getmaxx();
   maxy = getmaxy();
 
   setcolor(BLUE);
   rectangle(0,0,maxx,maxy);
 
   setcolor(WHITE);
   settextstyle(SANS_SERIF_FONT,HORIZ_DIR,2);
   outtextxy(maxx/2-180,maxy-28,"www.programmingsimplified.com");
 
   draw_color_panel();
   draw_shape_panel();
 
   setviewport(1,1,maxx-1,maxy-1,1);
 
   restrictmouseptr(1,1,maxx-1,maxy-1);
   showmouseptr();
   rectangle(2,2,518,427);
   setviewport(1,1,519,428,1);
 
   while(1)
   {
      if(kbhit())
      {
         key = get_key();
 
         if( key == 1 )
         {
            closegraph();
            exit(0);
         }
      }
 
      getmousepos(&button,&x,&y);
 
      if( button == 1 )
      {
         if( x > 4 && x < 635 && y > 431 && y < 457 )
            change_color( x, y );
         else if ( x > 529 && x < 625 && y > 40 && y < 250 )
             ch = change_shape( x, y );
 
         temp1 = x ;
         temp2 = y ;
 
         if ( ch == 'f' )
         {
            hidemouseptr();
            while( button == 1 )
            {
               line(temp1,temp2,x,y);
               temp1 = x;
               temp2 = y;
               getmousepos(&button,&x,&y);
            }
            showmouseptr();
         }
 
         while( button == 1)
            getmousepos(&button,&x,&y);
 
         /* to avoid interference of mouse while drawing */
         hidemouseptr();
 
         if( ch == 'p')
            putpixel(x,y,getcolor());
 
         else if ( ch == 'b' )
         {
            setfillstyle(SOLID_FILL,getcolor());
            bar(temp1,temp2,x,y);
         }
         else if ( ch == 'l')
            line(temp1,temp2,x,y);
         else if ( ch == 'e')
            ellipse(temp1,temp2,0,360,abs(x-temp1),abs(y-temp2));
         else if ( ch == 'r' )
            rectangle(temp1,temp2,x,y);
         else if ( ch == 'c' )
         {
            ch = 'f';          // setting to freehand drawing
            clearviewport();
            color = getcolor();
            setcolor(WHITE);
            rectangle(2,2,518,427);
            setcolor(color);
         }
 
         showmouseptr();
      }
   }
}

countdown

#include<graphics.h>
#include<dos.h>
#include<conio.h>
 
main()
{
   int gd = DETECT, gm, i;
   char a[5];
 
   initgraph( &gd, &gm, "C:\\TC\\BGI");
 
   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;
}

draw circles in circles

#include<graphics.h>
#include<conio.h>
#include<dos.h>
 
main()
{
   int gd = DETECT, gm, x, y, color, angle = 0;
   struct arccoordstype a, b;
 
   initgraph(&gd, &gm, "C:\\TC\\BGI");
   delay(2000);
 
   while(angle<=360)
   {
      setcolor(BLACK);
      arc(getmaxx()/2,getmaxy()/2,angle,angle+2,100);
      setcolor(RED);
      getarccoords(&a);
      circle(a.xstart,a.ystart,25);
      setcolor(BLACK);
      arc(getmaxx()/2,getmaxy()/2,angle,angle+2,150);
      getarccoords(&a);
      setcolor(GREEN);
      circle(a.xstart,a.ystart,25);
      angle = angle+5;
      delay(50);
   }
 
   getch();
   closegraph();
   return 0;
}

captcha program

#include<stdlib.h>
#include<dos.h>
#include<graphics.h>
 
main()
{
   int i = 0, key, num, midx, gd = DETECT, gm;
   char a[10];
 
   initgraph(&gd,&gm,"C:\\TC\\BGI");
 
   midx = getmaxx()/2;
 
   settextstyle(SCRIPT_FONT,HORIZ_DIR,5);
   settextjustify(CENTER_TEXT,CENTER_TEXT);
   setcolor(GREEN);
   outtextxy(midx,20,"CAPTCHA");
   settextstyle(SCRIPT_FONT,HORIZ_DIR,2);
   outtextxy(midx,125,"Press any key to change the generated random code \"captcha\"");
   outtextxy(midx,150,"Press escape key to exit...");
 
   setcolor(WHITE);
   setviewport(100,200,600,400,1);
   setcolor(RED);
   randomize();
 
   while(1)
   {
      while(i<6)
      {
         num = random(3);
 
         if ( num == 0 )
            a[i] = 65 + random(26);     /* 65 is the ascii value of A */
         else if ( num == 1)
            a[i] = 97 + random(26);     /* 97 is the ascii value of a */
         else
            a[i] = 48 + random(10);     /* 48 is the ascii value of 0 */
         i++;
      }
      a[i] = '\0';
      outtextxy(210,100,a);
      key = getch();
 
      if( key == 27 )                     /* escape key*/
         exit(0);
      clearviewport();
      i = 0;
   }
}