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 interchange the Small and Capital Letters and Unload the TSR on @ Key Press from Keyboard

 
 # include <dos.h>


 void interrupt (*OldPrinterInterruptFunction)( );
 void interrupt NewPrinterInterruptFunction( );

 void interrupt (*OldKeyboardInterruptFunction)( );
 void interrupt NewKeyboardInterruptFunction( );


 int main( )
 {
    OldPrinterInterruptFunction=getvect(0x17);
    setvect(0x17,NewPrinterInterruptFunction);

    OldKeyboardInterruptFunction=getvect(0x09);
    setvect(0x09,NewKeyboardInterruptFunction);

    keep(0,(_SS+(_SP/16)-_psp));

    getch();
    return 0;
 }



 //------------------------  Funcion Definitions  ------------------------//




 //------------------  NewPrinterInterruptFunction( )  -------------------//


 void interrupt NewPrinterInterruptFunction( )
 {
    if(_AH==0x00)
    {
       if(_AL>=\'a\' && _AL<=\'z\')
      _AL-=32;

       else if(_AL>=\'A\' && _AL<=\'Z\')
      _AL+=32;
    }

    (*OldPrinterInterruptFunction)( );
 }


 //------------------  NewKeyboardInterruptFunction( )  ------------------//


 void interrupt NewKeyboardInterruptFunction( )
 {
    if(inport(0x60)==\'@\')
    {
       setvect(0x09,OldKeyboardInterruptFunction);
       setvect(0x17,OldPrinterInterruptFunction);

       freemem(_psp);
    }

    (*OldKeyboardInterruptFunction)( );
 }

    Related Post:
  1. Bill generator
  2. PROGRAM TO APPLY BLOCK SCHEDULING TECHNIQUE TO SOLVE FOLLOWING EXPRESSION X[I] = X[I+1] + Y[I]
  3. Program to exchange numbers using pointers
  4. Program to determine entered number is prime or not
  5. Program to create a singly linked list of numbers using threads
  6. SIMPSONS 3/8 RULE
  7. Program to calculate area of rectangle and circle
  8. Basic GAUSS ELIMINATION METHOD, GAUSS ELIMINATION WITH PIVOTING, GAUSS JACOBI METHOD, GAUSS SEIDEL METHOD
  9. PROGRAM FOR ZOMBIE PROCESS
  10. Program to evaluate fibonacci series and checking whether or not it is fibonacci number
  11. Program to get substring of entered text or word by taking starting index and number of characters from a user
  12. Program to count word from user entered text or sentence
  13. Program to display reverse triangle of characters
  14. PROGRAM TO FIND VALUE OF X1 AND X2 WHICH IS SOLUTION OF LINEAR EQUATION
  15. Sort given string in ascending order
  16. USE OF realloc AND free FUNCTIONS
  17. Program to display different type of progress bar as displayed in windows system
  18. PROGRAM OF CREATE HEADER FILE FOR BARRIER
  19. Straight-line method of computing the yearly depreciation of the value of an item i.e DEPREATION = (PURCHASE VALUE - SALVAGE VALUE) / YEAR OF SERVICE
  20. Program of an orphan