More C Programs By Sharjeel

Working With Time in C

#include <stdio.h>

#include <time.h>

int main ()

{

time_t rawtime;

struct tm * timeinfo;

char buffer [80];

time ( &rawtime );

timeinfo = localtime ( &rawtime );

strftime (buffer,80,"TIME_IS:::: %d.",timeinfo);

puts (buffer);

return 0;

}

/*

(SPECIFIER) REPLACED BY) (EXAMPLE)

%a Abbreviated weekday name Thu

%A Full weekday name Thursday

%b Abbreviated month name Aug

%B Full month name August

%c Date and time representation Thu Aug 23 14:55:02 2001

%d Day of the month(01-31) 23

%H Hour in 24h format (00-23) 14

%I Hour in 12h format (01-12) 02

%j Day of the year (001-366) 235

%m Month as a decimal number (01-12) 08

%M Minute (00-59) 55

%p AM or PM designation PM

%S Second (00-61) 02

%U Week number with the first Sunday as the first day of week one (00-53) 33

%w Weekday as a decimal number with Sunday as 0 (0-6) 4

%W Week number with the first Monday as the first day of week one (00-53) 34

%x Date representation 08/23/01

%X Time representation 14:55:02

%y Year, last two digits (00-99) 01

%Y Year 2001

%Z Timezone name or abbreviation CDT

%% A % sign %

*/

====================================================================================

/* This program shows how to pick up the scan codes from a keyboard */

/* These define the scan codes(IBM) for the keys. All numbers are in decimal.*/

#define PAGE_UP 73

#define HOME 71

#define END 79

#define PAGE_DOWN 81

#define UP_ARROW 72

#define LEFT_ARROW 75

#define DOWN_ARROW 80

#define RIGHT_ARROW 77

#define F1 59

#define F2 60

#define F3 61

#define F4 62

#define F5 63

#define F6 64

#define F7 65

#define F8 66

#define F9 67

#define F10 68

#include <iostream>

#include <conio.h>

using namespace std;

void main()

{

char KeyStroke;

cout << "Press Escape to quit." << endl;

do

{

KeyStroke = getch();

if (KeyStroke == 0)

{

KeyStroke = getch(); // Even though there are 2 getch() it reads one keystroke

switch (KeyStroke)

{

case PAGE_UP:

cout << "PAGE UP" << endl;

break;

case PAGE_DOWN:

cout << "PAGE DOWN" << endl;

break;

case HOME:

cout << "HOME" << endl;

break;

case END:

cout << "END" << endl;

break;

case UP_ARROW:

cout << "UP ARROW" << endl;

break;

case DOWN_ARROW:

cout << "DOWN ARROW" << endl;

break;

case LEFT_ARROW:

cout << "LEFT_ARROW" << endl;

break;

case RIGHT_ARROW:

cout << "RIGHT_ARROW" << endl;

break;

case F1:

cout << "F1" << endl;

break;

case F2:

cout << "F2" << endl;

break;

case F3:

cout << "F3" << endl;

break;

case F4:

cout << "F4" << endl;

break;

case F5:

cout << "F5" << endl;

break;

case F6:

cout << "F6" << endl;

break;

case F7:

cout << "F7" << endl;

break;

case F8:

cout << "F8" << endl;

break;

case F9:

cout << "F9" << endl;

break;

case F10:

cout << "F10" << endl;

break;

default:

cout << "Some other key." << endl;

}

}

else

cout << KeyStroke << endl;

}

while (KeyStroke != 27); // 27 = Escape key

}