A few programs in C

You all helped me write these so, here they are:

Code:

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// ASCII Converter
#include <stdio.h>
#include <stdlib.h>

main()
{
  char c, i = 'y';
 
  while(i != 'n')
  {
      printf("\nEnter symbols (chars or nums):  ");
      scanf("%c", &c);
      fflush(stdin);
      printf("\nThe ASCII code for %c is %d.\n", c, c);
      printf("\nConvert another symbol? yes or no:  ");
      scanf("%c", &i);
      fflush(stdin);
//    system("cls");
 }
 
  return 0;
}

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Code:

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/*
** Creates a harmless Message Window
** scares the willies outa the user...
**
** written in C++ for win32
*/

#include <windows.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
  int i = 0;
 
  while(i == 0)
  {
      if(MessageBox
        (NULL,
        "Format Drive C:?",
        "Format",
        MB_YESNO | MB_ICONINFORMATION)
        != IDYES)
      (MessageBox
        (NULL,
        "Warning: All data on non-removable\n        disk drive C: will be lost!\n\nContinue with format?",
        "Format",
        MB_YESNO | MB_ICONINFORMATION)
        != IDYES);
      MessageBox
        (NULL,
        "Format: Checking existing disk format.",
        "Format", 0);
      MessageBox
        (NULL,
        "Format: Formatting drive C:",
        "Format", 0);
      if(MessageBox
        (NULL,
        "Format another disk?",
        "Format",
        MB_YESNO | MB_ICONINFORMATION)
        != IDYES)
        i = 1;
  }
  return 0;
}

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Code:

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// Empties Recycle Bin
#include <windows.h>
#include <shlobj.h>
#define WIN32_LEAN_AND_MEAN

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{

//if(MessageBox(NULL, "Press ok to empty the Recycle Bin.", "recycler", MB_YESNO | MB_ICONINFORMATION) != IDYES)
//return FALSE;

SHEmptyRecycleBin(NULL, "", 0);

return FALSE ;
}

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Code:

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// Numbers Game
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

void Start(int);
int GetResults(int, int, int, int, char);

int main()
{
    int life = 5;
   
    printf("\n\n            ** Jackpot Game **\n");
    printf("  The goal of this game is to guess a number.\n\n");
    printf("              You get 5 lives.\n\n");
    printf("Jackpot will tell you if the number is too big\n");
    printf("  or too small compared to the secret number.\n\n");
    system("pause");
    Start(life);
    return 0;
}

void Start(int life)
{
    int  guess = 0, low = 0, high = 30, secret = 0, j = 0, k = 0;
    char c = '1';
   
    while(c)
    {
        system("cls");
        printf("Select difficulty mode:\n\n");
        printf(" 0 : EXIT\n");
        printf(" 1 : Easy      (0 - 15)\n");
        printf(" 2 : Medium    (0 - 30)\n");
        printf(" 3 : Difficult (0 - 60)\n\n");
        printf("Enter a level: ");
        scanf("%c",&c);
        fflush(stdin);
        system("cls");
        if (c != '0');
        {
            switch (c)
            {
                case '1' : high = 15;  // the random number will be between 0 and maxrand
                break;
                case '2' : high = 30;
                break;
                case '3' : high = 60;
                break;
                default  : exit (0);
                return;
                break;
            }
        }
        srand(time(0));            // init Rand() function
        secret = rand() % high;    // secret = a random value between 0 and high
        GetResults(life, low, high, secret, c);
    }
}

int GetResults (int life, int low, int high, int secret, char c)
{
    int guess = 0, k = 0;
   
    while(k == 0)
    {
        printf("\nThe number is between %d and %d\n", low, high);
        printf("Number of remaining life: %d\n", life);
        printf("\nType a number: ");
        scanf("%d", &guess);          // read user's number
        fflush(stdin);
       
        if (life <= 0) // player has no more life
        {
            system("cls");
            printf("\n\nYou lose!\n\n");
            system("pause");
            return life;
        }
       
        if (guess == secret) // player found the secret number
        {
            system("cls");
            printf("\n\nYOU WIN !\n\n");
            system("pause");
            return life;
        }
       
        if ((guess > high) || (guess < low)) // 0 > guess > high - restart
        {
            system("cls");
            printf("\n\nError : Number not between %d and %d\n", low, high);
        }
       
        else
        {
            system("cls");
            life = life - 1;
            if (guess > secret)
            {
                high = guess;
            }
           
            if (guess < secret)
            {
                low = guess;
            }
        }
    }
}

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Code:

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/* Renews IP Address w/o mucking about in command prompt */

#include <windows.h>
#include <stdio.h>

int main(void)
{
  /* TODO (#1#): supress command and activate messagebox */
  system("ipconfig /release_all");
  system("ipconfig /renew_all");
//  system("ipconfig /batch RenewIP.dat");

  system("pause");
 
//  MessageBox (NULL, "Your IP Has Been Renewed" , "Renew IP", 0);
  return 0;
}

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Hope they help someone...particularly the new programmers.
These were all projects I used to learn C...Good luck.

Code:

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fflush(stdin);

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See the FAQ for why this is wrong.