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. Copying one string into another
  2. Program to find minimum and maximum from an array using structure
  3. Using structure as a function parameter
  4. Program to show the System Configuration using biosequip( ) function
  5. Program to calculate average of the elements of an array and then the average deviation using barrier
  6. Program to copy one string s2 to another string s1. (Use strcopy function from string.h)
  7. Program illustrates the output of integer numbers under various formats
  8. Program to print pyramid of abcd in reverse pattern
  9. Circular link list with create, insert, delete, display operations using structure pointer
  10. Program to search for a string into another string
  11. PROGRAM TO FIND THE FACTORS OF GIVEN NUMBER PARALLELY
  12. PROGRAM TO PRINT MATRIX
  13. PROGRAM USING COSINE FUNCTION
  14. Program to find standard deviation strdev using thread
  15. Book Store Management
  16. delete and insert anode at end in doubly link list.
  17. Runge-Kutta Second Order
  18. Program t generate triangle as shown in output
  19. Program of BAIRSTOWS METHOD
  20. Program to find area of rectangular