C Programming Tutorial

 
 
 

Advanced Programming

Array

One dimensional array Two dimensional Array Two dimensional array pointers Array of pointers Print array Print Array - for loop Print array in reverse Print address array - for loop Multidimentional array - function Print address array - pointers Print reverse string of array Print array ascii value-without atoi Character array - upper case Multiplication table - 2D array Passing array to function Max or greatest value in array Merge sorted array Array of structure Array of pointers to string Array within a structure

String Programs

Copy string Substring of string String concatination Vowel in string Swap char in string Palindrome string Rotate string Bubble sort of strings Sorting of words Encode decode string Compress string

File Programs

Read write in 2 files Add,edit,delete,search in file Add,search using structure Append in file Merge file Count word,line,char in file Count record - struct fread() example fwrite() example fopen() example fclose() example fscanf() and fprintf() fseek() example Error handling in file op Find odd,even num Odd even numbers in file Max, min age in class Random numbers file Preprocessor in 2 files Encode decode in file

Bios Programming

biosequip( ) - sys confi biosdisk( ) - partition tbl info Pc type-bios data area File allocation table Telephone directory

TSR Programming

Interchange letters Interchange letters on screen Unload TSR on key press-keyboard Unload TSR - timer interrupt Activate, deactivate TSR Print alphabet from printer Repeat key press Keep caps on Make ctrl, alt key pressed

Interrupt Programming

Restart computer Conventional memory of sys Save IVT in file Print string-interrupt 21h Read char-interrupt 21h Read char with echo-interrupt 21h Delete file-interrupt 21h Delete directory-interrupt 21h Get set system date Show system configuration Search, delete file in dir Display multiple file in dir

Mouse Programming

Text mode mouse handling Graphics mode mouse handling Double click of mouse
 

Program to read a character from KeyBoard with echo using Interrupt 21h

 

Image

 # include <stdio.h>
 # include <conio.h>
 # include   <dos.h>

 const char Getche( );

 int main( )
 {
    int key=0;

    clrscr( );

    printf(\"Press ANY key : \");

    key=Getche( );

    printf(\"\\nASCII Code for Input Key = %d\",key);

    getch( );
    return 0;
 }


 //-------------------------------  Getche( )  ---------------------------//


 const char Getche( )
 {
    union REGS InReg;
    union REGS OutReg;

    InReg.h.ah=0x01;

    int86(0x21,&InReg,&OutReg);

    return OutReg.h.al;
 }

    Related Post:
  1. Singly Linked list with following operations INSERT AT STARTING, INSERT AT MIDDLE, INSERT AT END, DELETE FIRST NODE, DELETE LAST NODE, DELETE MIDDLE
  2. Program to print entered word in an alphabetical order
  3. MILNES METHOD
  4. SECANT METHOD USING e(x)-3x
  5. Program to update stock price using structure pointer
  6. Use of continue statement
  7. Program to implement a multi-access threaded queue with multiple threads inserting and multiple threads extracting from the queue
  8. FUNCTION TABULATED AT EQUAL INTERVAL USING BACKWARD DIFFERENCE BETWEEN TABLE VALUE
  9. Program to calculate bonus, commission and gross salary as per description formula
  10. Program to solve the backward dependency for the following equation using crude way x[i]=x[i-1]+y[i]
  11. Program to illustrate one-dimensional array
  12. Program to print triangle of numbers as shown in description
  13. Program that will enter a line of text, store it in an array and then display it backwards
  14. Program to find greatest number from one dimensional array
  15. Program to print number N times using for loop
  16. PROGRAM TO FIND ANSWER OF THE FOLLOWING SERIES. INPUT STEPS FROM KEYBOARD. SUM =12-32+52-72+.....
  17. Program to copy the contents of one array to another using shared memory
  18. Program to get answer of inventor of c. Allow user to give answer in 3 attempts
  19. POINTERS TO STRUCTURE VARIABLES
  20. Program of FIXED POINT METHOD OF NON LINEAR EQUATION
 
 
Didn't find what you were looking for? Find more on Program to read a character from KeyBoard with echo using Interrupt 21h