mouse events
#include<stdio.h>#include<graphics.h>
#include<dos.h>
union REGS i,o;
void main()
{
int gd=DETECT,gm,x,y,maxx=630,maxy=451,button;
initgraph(&gd,&gm," ");
rectangle(0,90,maxx,maxy);
setviewport(1,91,maxx-1,maxy-1,1);
gotoxy(33,1);
printf("Mouse Events");
i.x.ax=0;
int86(0x33,&i,&o);
if(o.x.ax==0)
{
restorecrtmode();
printf("Mouse Driver is not loaded.");
}
restrictmouseptr(1,91,maxx,maxy-1);
i.x.ax=1;
int86(0x33,&i,&o);
gotoxy(1,3);
printf("Left Button ");
gotoxy(25,3);
printf("Rigth Button ");
gotoxy(50,5);
printf("press any key to exit.........");
while(!kbhit())
{
getmousepos(&button,&x,&y);
gotoxy(1,5);
if((button&1)==1)
printf("Key is Pressed ");
else
printf("Key is Released ");
gotoxy(25,5);
if ((button&2)==2)
printf("Key is Pressed ");
else
printf("Key is Released ");
gotoxy(65,3);
printf("x= %d y= %d ",x,y);
}
}
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);
}
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;
}
Digital circuit control by lpt port
#include<stdio.h>
#include<conio.h>
#include<dos.h>
#include<graphics.h>
#include<stdlib.h>
#include<bios.h>
#define port 0x0378
char ch;
void display(int,int,int,int);
void dispbutton(int);
void click(int,int,int,int);
void status(int,int,int,int);
void reset(int*,int*,int*,int*);
int x,y,button;
union REGS i,o;
initmouse()
{
i.x.ax=0;
int86(0x33,&i,&o);
return(o.x.ax);
}
void showmouseptr()
{
i.x.ax=1;
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;
}
void hidemouseptr()
{
i.x.ax=2;
int86(0x33,&i,&o);
}
void main()
{clrscr();
int s1=0,s2=0,s3=0,s4=0;
int gdriver=DETECT,gmode,ercode;
initgraph(&gdriver,&gmode,"");
ercode=graphresult();
if(ercode!=0){printf("error code:%s",grapherrormsg(ercode));
getch();}
display(s1,s2,s3,s4);
initmouse();showmouseptr();
while(ch!=27)
{getmousepos(&button,&x,&y);
if(button==1)
{if(x>80&&x<180&&y>100&&y<140)ch='1';
if(x>200&&x<300&&y>100&&y<140)ch='2';
if(x>320&&x<420&&y>100&&y<140)ch='3';
if(x>440&&x<540&&y>100&&y<140)ch='4';
if(x>440&&x<540&&y>300&&y<340)ch=32;
if(x>80&&x<180&&y>300&&y<340)ch=27;
}
if(kbhit())ch=getch();
switch(ch)
{case '1':{s1=!s1;
click(s1,s2,s3,s4);
outportb(port,1);delay(500);outport(port,0);
ch='0';break;
}
case '2':{s2=!s2;
click(s1,s2,s3,s4);
outportb(port,2);delay(500);outport(port,0);
ch='0';break;
}
case '3':{s3=!s3;
click(s1,s2,s3,s4);
outportb(port,4);delay(500);outport(port,0);
ch='0';break;
}
case '4':{s4=!s4;
click(s1,s2,s3,s4);
outportb(port,8);delay(500);outport(port,0);
ch='0';break;
}
case 32:{click(s1,s2,s3,s4);
reset(&s1,&s2,&s3,&s4);
ch='0';break;
}
case 27: {click(s1,s2,s3,s4);
reset(&s1,&s2,&s3,&s4);
closegraph();exit(0);}
}
}
}
void display(int s1,int s2,int s3,int s4)
{setbkcolor(9);setcolor(1);
rectangle(5,5,635,475);rectangle(10,10,630,470);
dispbutton(1);dispbutton(2);dispbutton(3);dispbutton(4);
dispbutton(5);dispbutton(6);
status(s1,s2,s3,s4);
setcolor(1);
outtextxy(100,115,"SWITCH 1");
outtextxy(220,115,"SWITCH 2");
outtextxy(340,115,"SWITCH 3");
outtextxy(460,115,"SWITCH 4");
outtextxy(115,315,"EXIT");
outtextxy(470,315,"RESET");
}
void dispbutton(int n)
{int x1,y1,x2,y2;
if(n==1){x1=80;y1=100;x2=180;y2=140;}
if(n==2){x1=200;y1=100;x2=300;y2=140;}
if(n==3){x1=320;y1=100;x2=420;y2=140;}
if(n==4){x1=440;y1=100;x2=540;y2=140;}
if(n==5){x1=80;y1=300;x2=180;y2=340;}
if(n==6){x1=440;y1=300;x2=540;y2=340;}
setfillstyle(SOLID_FILL,7);
bar(x1,y1,x2,y2);
setcolor(15);
line(x1,y1,x2,y1);line(x1,y1,x1,y2);
setcolor(8);
line(x2,y1,x2,y2);line(x1,y2,x2,y2);
}
void click(int s1,int s2,int s3,int s4)
{int x1,y1,x2,y2;
if(ch=='1'){x1=80;y1=100;x2=180;y2=140;}
if(ch=='2'){x1=200;y1=100;x2=300;y2=140;}
if(ch=='3'){x1=320;y1=100;x2=420;y2=140;}
if(ch=='4'){x1=440;y1=100;x2=540;y2=140;}
if(ch==27){x1=80;y1=300;x2=180;y2=340;}
if(ch==32){x1=440;y1=300;x2=540;y2=340;}
hidemouseptr();
setcolor(15);line(x2,y1,x2,y2);line(x1,y2,x2,y2);
setcolor(8);line(x1,y1,x2,y1);line(x1,y1,x1,y2);
sound(50);delay(75);nosound();
setcolor(15);line(x1,y1,x2,y1);line(x1,y1,x1,y2);
setcolor(8);line(x2,y1,x2,y2);line(x1,y2,x2,y2);
showmouseptr();
status(s1,s2,s3,s4);
}
void status(int s1,int s2,int s3,int s4)
{setcolor(4);setfillstyle(SOLID_FILL,4);
circle(130,200,10);
circle(250,200,10);
circle(370,200,10);
circle(490,200,10);
if(s1==1)floodfill(130,200,4);
else {setcolor(0);setfillstyle(SOLID_FILL,0);circle(130,200,10);
floodfill(130,200,0);
setcolor(4);circle(130,200,10);setfillstyle(SOLID_FILL,4);
}
if(s2==1)floodfill(250,200,4);
else {setcolor(0);setfillstyle(SOLID_FILL,0);circle(250,200,10);
floodfill(250,200,0);
setcolor(4);circle(250,200,10);setfillstyle(SOLID_FILL,4);
}
if(s3==1)floodfill(370,200,4);
else {setcolor(0);setfillstyle(SOLID_FILL,0);circle(370,200,10);
floodfill(370,200,0);
setcolor(4);circle(370,200,10);setfillstyle(SOLID_FILL,4);
}
if(s4==1)floodfill(490,200,4);
else {setcolor(0);setfillstyle(SOLID_FILL,0);circle(490,200,10);
floodfill(490,200,0);
setcolor(4);circle(490,200,10);
}
}
void reset(int *s1,int *s2,int *s3,int *s4)
{if(*s1==1)
{outportb(port,1);delay(500);outport(port,0);}
if(*s2==1)
{outportb(port,2);delay(500);outport(port,0);}
if(*s3==1)
{outportb(port,4);delay(500);outport(port,0);}
if(*s4==1)
{outportb(port,8);delay(500);outport(port,0);}
*s1=0;*s2=0;*s3=0;*s4=0;
status(*s1,*s2,*s3,*s4);
}
reading serial port
#include<stdio.h>#include<conio.h>
#include<dos.h>
void main()
{
char data;
int choice;
clrscr();
printf("Enter the choice to send or receive from COM1::");
scanf("%d",&choice);
if(choice==1)
{
printf("Enter data to send::");
scanf("%c",data);
inportb(0x03f8,data);
}
else
{
data=outport(0x3f8);
printf("reding from COM1::%d",data);
}
getch();
}
pc based device control
/* Computerised Electrical Equipment Control */
/* PC BASED DEVICE CONTROLLER */
#include<stdio.h>
#include<conio.h>
#include<dos.h>
void main()
{
void tone(void);
int p=0x0378;
char ex[23]={"Created By Mrc"};
int j;
char ex1[34]={"For Further Details & Improvements"};
int k;
char ex2[43]={"Contact : E-mail : anbudanravi_krr@sify.com"};
int l;
char ex3[24]={"Programming Language : C"};
int m;
int u[10];
int i;
static a,b,c,d,e,f,g,h;
char no;
clrscr();
textcolor(15);
gotoxy(20,6);
cprintf("PC BASED DEVICE CONTROLLER");
textcolor(11);
gotoxy(20,7);
cprintf("~~~~~~~~~~~~~~~~~~~~~~~~~~");
textcolor(11);
gotoxy(10,10);
cprintf("Equipment Number: 1 2 3 4 5 6 7 8");
textcolor(11);
gotoxy(10,12);
cprintf("Status : %d %d %d %d %d %d %d
%d",a,b,c,d,e,f,g,h);
textcolor(10);
gotoxy(9,16);
cprintf("For 'ON' And 'OFF' An Equipment Press Corresponding Equipment
Number");
textcolor(11);
gotoxy(28,18);
cprintf("Status 0 = OFF Status 1 = ON");
textcolor(12);
gotoxy(32,20);
cprintf("For EXIT Press 'E'
");
no=getch();
switch(no)
{
case '1' :
a=!a;
tone();
outportb(p,1);
delay(500);
outport(p,0);
break;
case '2' :
b=!b;
tone();
outportb(p,2);
delay(500);
outport(p,0);
break;
case '3' :
c=!c;
tone();
outportb(p,4);
delay(500);
outport(p,0);
break;
case '4' :
d=!d;
tone();
outportb(p,8);
delay(500);
outport(p,0);
break;
case '5' :
e=!e;
tone();
outportb(p,16);
delay(500);
outport(p,0);
break;
case '6' :
f=!f;
tone();
outportb(p,32);
delay(500);
outport(p,0);
break;
case '7' :
g=!g;
tone();
outportb(p,64);
delay(500);
outport(p,0);
break;
case '8' :
h=!h;
tone();
outportb(p,128);
delay(500);
outport(p,0);
break;
case 'e' :
if((a|b|c|d|e|f|g|h)==1)
{
clrscr();
textcolor(10);
gotoxy(20,12);
cprintf("Please SHUT DOWN All The Equipments");
sound(200);
delay(500);
nosound();
delay(3000);
break;
}
else
{
clrscr();
for(j=0;j<23;j++)
{
textcolor(10);
gotoxy(20+j,12);
cprintf("%c",ex[j]);
sound(3000+j);
delay(30);
nosound();
}
for(m=0;m<23;m++)
{
textcolor(10);
gotoxy(20+m,13);
cprintf("%c",ex3[m]);
sound(1800+m);
delay(30);
nosound();
}
for(k=0;k<34;k++)
{
textcolor(10);
gotoxy(20+k,14);
cprintf("%c",ex1[k]);
sound(2000+k);
delay(30);
nosound();
}
for(l=0;l<40;l++)
{
textcolor(10);
gotoxy(20+l,15);
cprintf("%c",ex2[l]);
sound(2500+l);
delay(30);
nosound();
}
printf("
Press Any Key");
getch();
outportb(p,0);
}
case 'E' :
if((a|b|c|d|e|f|g|h)==1)
{
clrscr();
textcolor(10);
gotoxy(20,12);
cprintf("Please SHUT DOWN All The Equipments");
sound(200);
delay(500);
nosound();
delay(3000);
break;
}
else
{
clrscr();
for(j=0;j<23;j++)
{
textcolor(10);
gotoxy(20+j,12);
cprintf("%c",ex[j]);
sound(2500+j);
delay(30);
nosound();
}
for(m=0;m<24;m++)
{
textcolor(10);
gotoxy(20+m,13);
cprintf("%c",ex3[m]);
sound(3500+m);
delay(30);
nosound();
}
for(k=0;k<34;k++)
{
textcolor(10);
gotoxy(20+k,14);
cprintf("%c",ex1[k]);
sound(3000+k);
delay(30);
nosound();
}
for(l=0;l<43;l++)
{
textcolor(10);
gotoxy(20+l,15);
cprintf("%c",ex2[l]);
sound(3500+l);
delay(30);
nosound();
}
printf("
Press Any Key");
getch();
outportb(p,0);
exit(0);
}
default :
clrscr();
sound(500);
delay(100);
nosound();
textcolor(11);
gotoxy(30,12);
cprintf("Invalid Key Pressed");
textcolor(11);
gotoxy(33,14);
cprintf("Wait 2 Seconds");
delay(3000);
break;
}
main();
}
void tone(void)
{
sound(1000);
delay(100);
nosound();
}
electrical equipment control by pc
Code ://Computerised electrical equpiment control system.
//Developped by: Bhaskar Mukherjee, B.Tech(ECE)
#include<stdio.h>
#include<conio.h>
#include<dos.h>
void main()
{
void tone(void);
int p=0x0378;
char ex[50]="Created by BHASKAR MUKHERJEE.";
int k;
char ex1[50]= "Programming language used is : C";
int m,j,l;
char ex2[50]="ALL SYSTEMS SHUT DOWN SUCCESSFULLY." ;
char ex3[50]="THANK YOU FOR USING THIS SOFTWARE.";
int u[10];
int i;
static a,b,c,d,e,f,g,h;
char no;
clrscr();
textcolor(15);gotoxy(20,6);
cprintf("COMPUTERISED ELECTRICAL EQUPIMENT CONTROL");
textcolor(11);
gotoxy(20,7);
cprintf("-----------------------------------------");
textcolor(9); gotoxy(10,10);
cprintf("EQUIPMENT NO. 1 2 3 4 5 6 7
8");
textcolor(9); gotoxy(10,12);
cprintf("STATUS %d %d %d %d %d %d %d
%d",a,b,c,d,e,f,g,h);
textcolor(10); gotoxy(14,16);
cprintf("
FOR 'ON'AND 'OFF' PRESS CORESSPONDING EQUIPMENT NUMBER.");
textcolor(13);gotoxy(25,18);
cprintf("
STATUS 0 = OFF STATUS 1 = ON");
textcolor(12); gotoxy(32,22);
cprintf("FOR EXIT PRESS 'E'");
no=getch();
switch(no)
{
case '1':
a=!a;
tone();
outportb(p,1);
delay(500);
outportb(p,0);
break;
case '2':
b=!b;
tone();
outport(p,2);
delay(500);
outportb(p,0);
break;
case '3':
c=!c;
tone();
outport(p,4);
delay(500);
outportb(p,0);
break;
case '4':
d=!d;
tone();
outport(p,8);
delay(500);
outportb(p,0);
break;
case '5':
e=!e;
tone();
outport(p,16);
delay(500);
outportb(p,0);
break;
case '6':
f=!f;
tone();
outport(p,32);
delay(500);
outportb(p,0);
break;
case '7':
g=!g;
tone();
outport(p,64);
delay(500);
outportb(p,0);
break;
case '8':
h=!h;
tone();
outport(p,128);
delay(500);
outportb(p,0);
break;
case 'e':
if((a||b||c||d||e||f||g||h)==1)
{
clrscr();
textcolor(13); gotoxy(20,12);
cprintf("
WARNING:PLEASE SHUT DOWN ALL THE EQUIPMENTS!");
sound(200);
delay(8500);
nosound();
break;
}
else
{
clrscr();
for(j=0;j<35;j++)
{
textcolor(13); gotoxy(20+j,12);
cprintf("%c",ex[j]);
sound(3000+j);
delay(30);
nosound();
}
for(m=0;m<40;m++)
{
textcolor(10); gotoxy(20+m,13);
cprintf("%c",ex3[m]);
sound(1800+m);
delay(30);
nosound();
}
for(k=0;k<34;k++)
{
textcolor(4); gotoxy(20+k,14);
cprintf("%c",ex1[k]);
sound(2000+k);
delay(30);
nosound();
}
for(l=0;l<40;l++)
{
textcolor(3); gotoxy(20+l,15);
cprintf("%c",ex2[l]);
sound(2500+l);
delay(30);
nosound();
}
window(10, 10, 80, 25);
printf("
PRESS ANY KEY.");
getch();
outportb(p,0);
exit(0);
}
case 'E':
if((a||b||c||d||e||f||g||h)==1)
{
clrscr();
textcolor(10); gotoxy(20,12);
cprintf("PLEASE SHUT DOWN ALL THE EQUIPMENTS.");
sound(200);
delay(500);
nosound();
delay(3000);
break;
}
else
{
clrscr();
for(j=0;j<23;j++)
{
textcolor(5); gotoxy(20+j,12);
cprintf("%c",ex[j]);
sound(3000+j);
delay(30);
nosound();
}
for(m=0;m<23;m++)
{
textcolor(3); gotoxy(20+m,13);
cprintf("%c",ex3[m]);
sound(1800+m);
delay(30);
nosound();
}
for(k=0;k<34;k++)
{
textcolor(11); gotoxy(20+k,14);
cprintf("%c",ex1[k]);
sound(2000+k);
delay(30);
nosound();
}
for(l=0;l<40;l++)
{
textcolor(12); gotoxy(20+l,15);
cprintf("%c",ex2[l]);
sound(2500+l);
delay(30);
nosound();
}
textcolor(12+BLINK);gotoxy(40,40);
cprintf("
PRESS ANY KEY.");
getch();
outportb(p,0);
exit(0);
}
default:
clrscr();
sound(500);
delay(100);
nosound();
textcolor(9); gotoxy(30,12);
cprintf("INVALID KEY PRESSED.");
textcolor(11); gotoxy(33,14);
cprintf("
WAIT FOR 2 SECONDS.");
delay(3000);
break;
}
main();
}
void tone(void)
{
sound(1000);
delay(100);
nosound();
}
turn caps lock on
void main()
{
char far *kb;
kb=(char far *)0x417;
*kb=112;
}
implement all display functions
#include<conio.h>
#include<dos.h>
#include<process.h>
#include<iostream.h>
# include<ctype.h>
main()
{
int choice;
char cont='y';
int a1q1(),a1q2(),a1q3(),a1q4(),a1q5(),a1q6(),a1q7(),a1q8(),a1q9(),a1q10();
clrscr();
gotoxy(24,3);
while(cont=='y')
{
clrscr();
printf("
---------------------------------------");
printf("
|1.Get current Display Mode. | ");
printf("
|2.Character with chosen attribute. | ");
printf("
|3. Scroll the window up. | ");
printf("
|4.Scroll the window down. | ");
printf("
|5.Read the character & it's attribute| ");
printf("
|6.Positioning the Cursor . | ");
printf("
|7.Selecting the Video Mode. | ");
printf("
|8.Selecting the type of the Cursor. | ");
printf("
|9.Reading the Cursor position | ");
printf("
|10.Select the page of the text. | ");
printf("
|11. Exit. | ");
printf("
---------------------------------------");
printf("
Enter your choice [ ]");
gotoxy(37,16);
scanf("%d",&choice);
switch(choice)
{
case 1:
a1q1();
break;
case 2:
a1q2();
break;
case 3:
a1q3();
break;
case 4:
a1q4();
break;
case 5:
a1q5();
break;
case 6:
a1q6();
break;
case 7:
a1q7();
break;
case 8:
a1q8();
break;
case 9:
a1q9();
break;
case 10:
a1q10();
break;
case 11:
exit(0);
}
gotoxy(3,21);
printf("
Do you want to continue[y/n]: [ ]");
gotoxy(32,22);
cin>>cont;
}
getch();
}
/****************************************************************************/
a1q1()
{
clrscr();
union REGS regs;
regs.h.ah=0x0f;
int86(0x10,®s,®s);
int noofcol;
int displaymode;
int activetextpage;
noofcol = regs.h.ah;
displaymode = regs.h.al;
activetextpage = regs.h.bh;
printf("
");
printf(" No. of Columns on Screen - %d
",noofcol);
printf(" Display Mode - %d
",displaymode);
printf(" The Active Text Page - %d
",activetextpage);
return(0);
}
/****************************************************************************/
a1q2()
{
clrscr();
union REGS regs;
regs.h.ah = 2;
regs.h.dh = 0;
regs.h.dl = 0;
regs.h.bh = 0;
int86(0x10,®s,®s);
getch();
regs.h.ah = 9;
regs.h.bh = 0;
regs.h.al = 65;
regs.h.dl = 8;
regs.h.cl = 2;
regs.h.ch = 0;
int86(0x10,®s,®s);
return(0);
}
/****************************************************************************/
a1q3()
{
clrscr();
union REGS regs;
regs.h.ah = 6;
regs.h.al = 5;
regs.h.bh = 8;
regs.h.ch = 0;
regs.h.cl = 0;
regs.h.dh = 50;
regs.h.dl = 50;
int86(0x10,®s,®s);
return(0);
}
/****************************************************************************/
a1q4()
{
clrscr();
union REGS regs;
regs.h.ah = 7;
regs.h.al = 5;
regs.h.bh = 8;
regs.h.ch = 0;
regs.h.cl = 0;
regs.h.dh = 50;
regs.h.dl = 50;
int86(0x10,®s,®s);
return(0);
}
/****************************************************************************/
a1q5()
{
clrscr();
int x,y;
union REGS regs;
regs.h.ah = 2;
regs.h.dh = 0;
regs.h.dl = 0;
regs.h.bh = 0;
int86(0x10,®s,®s);
getch();
regs.h.ah = 8;
regs.h.bh = 0;
int86(0x10,®s,®s);
x = regs.h.al;
y = regs.h.ah;
clrscr();
printf("Ascii Character is - %d
",x);
printf("The attribute of Character is - %d
",y);
return(0);
}
/****************************************************************************/
a1q6()
{
clrscr();
int x,y;
union REGS regs;
printf("
Enter the X-position - ");
scanf("%d",&x);
printf("
Enter the Y-position - ");
scanf("%d",&y);
regs.h.ah = 2;
regs.h.bh = 0;
regs.h.dh = y;
regs.h.dl = x;
int86(0x10,®s,®s);
return(0);
}
/****************************************************************************/
a1q7()
{
clrscr();
int choice;
union REGS regs;
printf("
For CGA Mode(0-6).");
printf("
For Mono MOde(1).");
printf("
Select the Mode - ");
scanf("%d",&choice);
clrscr();
regs.h.ah = 0; /*Set cursor position*/
regs.h.al = choice;
int86(0x10,®s,®s);
gotoxy(40,12);
printf(" HAVE A NICE DAY");
return(0);
}
/****************************************************************************/
a1q8()
{
clrscr();
int x,y;
union REGS regs;
printf("
Enter the starting line of the cursor(0-4) - ");
scanf("%d",&x);
printf("
Enter the ending line of the cursor - ");
scanf("%d",&y);
gotoxy(40,12);
regs.h.ah = 1;
regs.h.ch = x;
regs.h.cl = y;
int86(0x10,®s,®s);
return(0);
}
/****************************************************************************/
a1q9()
{
clrscr();
union REGS regs;
regs.h.ah = 3;
regs.h.bh = 9;
regs.h.dh = 8;
regs.h.dl = 27;
int86(0x10,®s,®s);
printf("
The row position of cursor on selected page - %d",regs.h.ch);
printf("
The column position of cursor on selected page - %d",regs.h.cl);
return(0);
}
/****************************************************************************/
a1q10()
{
clrscr();
union REGS regs;
regs.h.ah = 5;
regs.h.bh = 6;
int86(0x10,®s,®s);
return(0);
}
/****************************************************************************/
#include<stdio.h>
#include<conio.h>
#include<dos.h>
void main(void)
{
clrscr();
union REGS regs;
regs.h.ah = 1;
regs.h.dl = 0x80;
int86(0x13,®s,®s);
printf("
If successful operation then AH & AL register resets.");
printf("
AH register - %d",regs.h.ah);
printf("
AL register - %d",regs.h.al);
printf("
Successful Operation.");
getch();
}
| Program to implement Specify command. |
#include<stdio.h>
#include<dos.h>
void main()
{
int x;
int result;
clrscr();
// Step 1Put on the motor
outp(0x3f2,28);//Address of digital control port 0x3f2
//Step 2 Check whether the FDC is ready
result=inp(0x3f4); //Read the status of MSR
result=(result&128);
if(result==128)//Check whether FDC is ready
{
//Beginning of command phase
//Step 3 Input the command parameters
outp(0x3f5,3);//Enter command parameters
delay(200);
outp(0x3f5,204); //Enter SRT(2-32 step of 2) HUT(4-512 in step of4)
delay(300);
outp(0x3f5,25);//Enter the HUT and NDM
delay(300);
}
delay(1000);
result=inp(0x3f5);
printf("The value od data register is %d",result);
getch();
//Put off the motor
outp(0x3f2,0);
}
Program: To Implement Sense Drive Command.
#include<conio.h>
#include<stdio.h>
#include<dos.h>
void main()
{
int x;
int show;
clrscr();
// Put on the motor
outp(0x3f2,28);//Address of digital control port 0x3f2
// Check whether the FDC is ready
show=inp(0x3f4); //Read the status of MSR
show=(show&128);
if(show==128)//Check whether FDC is ready
{
//Beginning of command phase
// Input the command parameters
outp(0x3f5,4);//Enter command parameters
delay(200);
outp(0x3f5,0); //Enter Head no and Drive no.
delay(300);
}
delay(1000);
show=inp(0x3f4);
show=show&192;//Check whether it is in show phase
if(show==192)
{
show=inp(0x3f5);//Read the status of
printf("The registers are %d",show);
}
getch();
//Put off the motor
outp(0x3f2,0);
}
| Program for enabling and disabling the keyboard. |
#include<conio.h>
#include<dos.h>
main()
{
clrscr();
outportb(0x64,0xAD); /*Code for disabling the KEYBOARD*/
printf("
Keyboard Disabled");
delay(10000);
clrscr();
printf("
Keyboard Enabled");
outportb(0x64,0xAE); /*Code for enabling the KEYBOARD*/
getch();
}
CREATING SOUND FROM PC
This example will play a sound depending on what a user selects from a menu . This uses the sound() function which may be part of the dos.h of your compiler#include <dos.h>
#include <stdio.h>
#include <stdlib.h>
int menu(void);
main()
{
while(1)
{
/*get selection and execute the relevant statement*/
switch(menu())
{
case 1:
{
puts(“sound the speaker 1\n”);
sound(2000);
sleep(2);
nosound();
break;
}
case 2:
{
puts(“sound that speaker 2\n”);
sound(4000);
sleep(2);
nosound();
break;
}
case 3:
{
puts(“You are quitting\n”);
exit(0);
break;
}
default:
{
puts(“Invalid menu choice\n”);
break;
}
}
}
return 0
}
/*menu function*/
int menu(void)
{
int reply;
/*display menu options*/
puts(“Enter 1 for beep 1.\n”);
puts(“Enter 2 for beep 2.\n”);
puts(“Enter 3 to quit.\n”);
/*scan for user entry*/
scanf(“%d”, &reply);
return reply;
}
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