main.cpp

auto shutdown it is very useful

#include <iostream.h>
#include <conio.h>
//#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <math.h>

void draw()
{
	gotoxy(7,4);
	for(int i=0;i<26;i++)
   	cout<<char(-60);
      for(int i=4;i<7;i++)
   	{
      	gotoxy(7,i);
         cout<<char(-77);
      }
      for(int i=4;i<7;i++)
   	{
      	gotoxy(33,i);
         cout<<char(-77);
      }
      gotoxy(7,6);
   	for(int i=0;i<26;i++)
   		cout<<char(-60);
      gotoxy(7,4);
   cout<<char(-38);

   gotoxy(33,6);                 clreol();
    cout<<char(-39); //  cout<<end;
   gotoxy(33,4);
   cout<<char(-65);
   gotoxy(7,6);
   cout<<char(-64);
}
int return_value(char a)
{
	switch(a)
   {
   	case '0': return 0;case '1': return 1;case '2':return 2;case '3': return 3;case '4':return 4;
      case '5':return 5;case '6':return 6;case '7':return 7;case '8':return 8;case '9':return 9;
   }
   return 0;
}
int change(char a[],int n)
{
 	int temp=0;

   n+=1;
   for(int i=n;i>=0;i--)
   	temp += return_value(a[i]) * pow(10,n-i-1);

    //  gotoxy(5,18);cout<<temp<<"   ";cout<<n;getch();
   return temp;
}
void text_one()
{
	gotoxy(18,14);textcolor(12);cprintf("%s","ENTER");
   gotoxy(10,16);textcolor(8);cprintf("%s","To setup time shutdown");
}
void remove_text_one()
{
	gotoxy(1,15);clreol();
   gotoxy(1,16);clreol();
}
void text_two()
{
	gotoxy(5,15);cout<<"Time Shutdown (Min): ";
   gotoxy(2,19);textcolor(2);cprintf("%s","NOTE : ");
   gotoxy(3,21);textcolor(8);cprintf("%s"," None + Enter -> Cancel ");
   gotoxy(3,23);textcolor(8);cprintf("%s"," Only acept number input");
}
void remove_text_two()
{
	gotoxy(1,15);clreol();
   gotoxy(1,19);clreol();
   gotoxy(1,21);clreol();
   gotoxy(1,23);clreol();
}
void text_three()
{
	gotoxy(13,14);
   cout<<"Time remaining";
   gotoxy(3, 22); textcolor(6);cprintf("%s"," Press Enter to change timeshutdown");
}
void remove_text_three()
{
	gotoxy(13,14);
   clreol();
   gotoxy(3, 22);
   clreol();
}
void reset(char data[])
{
	for(int i=0;i<10;i++)
   	data[i]='\0';
}
void display(int a,int k=0)
{
	gotoxy(1,16);clreol();
   gotoxy(18,16);cout<<a<<(k?"\t s":" ");
}
void remove_display()
{
	gotoxy(15,16);clreol();
}
void main()
{
	textmode(C40);
   _setcursortype(0);
	time_t present;
   clock_t start, end, time_end, time_start;
   start=clock();
   time_start=clock();
   char ch;
   int count=0, count_data=-1;
   bool flag=false,time_flag = true,text1_flag = false, text2_flag = false,go=false;
   gotoxy(30,25);
   textcolor(10);
   cprintf("%s","Hoang Hung ");
   gotoxy(1,1);
   cout<<"\n Auto Shutdown Computer ";
   gotoxy(35,1);
   cout<<"Ver.1";
   draw();

   text_one();
   char data[10];

   int x=27;
   while(1)
   {
   	while(kbhit())
      {
      	ch=getch();
         if(ch==13)
      	{
            /*
         	gotoxy(1,1);
            if(go)
            	cout<<" an enter, go = true";
            else
            	cout<<" an enter, go =false"; */
      		if(!text1_flag)
      			{remove_text_one(); text1_flag=true;}
            else
            	{text_one(); text1_flag=false;}

         	if(!text2_flag)
         		{text_two(); text2_flag=true;}
            else
            	{remove_text_two(); text2_flag=false;}
         	if(go)
            	{
               	int count1=change(data,count_data)*60;
                  if(count1)
                  {
                  	count = count1;
                   	flag=true;
                     start=clock();
                  }
                  if(count)
                  {  text_three();
                    display(count/60); }
                  go=false;
                //  text_one();
                  reset(data);
                  count_data=-1;
                  x=27;
               }
            else
            	{go=true; remove_text_three(); remove_display();
               }
            ch='\0';
      	}
         if(go)
         {
         	gotoxy(x+count_data,15);
            cout<<ch;
            clreol();
         	if(ch>='0'&&ch<='9')
            {
            	if(count_data<-1)
               	count_data=-1;
            	data[++count_data]=ch;
            }
            else
            	{reset(data);count_data=0;}
            if(ch==8)
            	{if(count_data>=0&&wherex()>=27){gotoxy(x+count_data-1,20);cout<<" ";} data[count_data]='\0';count_data--;}
          	if(wherex()>=35)
            {
            	reset(data);count_data=0;
            }
         }
        ch='\0';
     }
   	time_end=clock();
      end=clock();
      if(((time_end - time_start)/CLK_TCK)>=1 || time_flag)
      {
      	time_flag=false;
      	time_start = time_end;
   		time(&present);
      	gotoxy(8,5);
         //clreol();
         cout<<"                         ";
         gotoxy(8,5);
         textcolor(14);
         cprintf("%s",ctime(&present));
   		//cout<<ctime(&present);
      }

      if(((end-start)/CLK_TCK)>=60 && flag)
      {
      	if(count<60)
         {
      		system("shutdown -s -t 0");
          /*	gotoxy(10,25);
         	cout<<"OK";getch();*/
         	return;
         }
         else
         {
         	count-=60;

            display(count/60);

            start=end;
         }
      }
   }
}