How to make a Simple Hack

//includes all nessecary files to this source
#include <windows.h>
//End of includes
//This is what you call globals.
int HackOn = 0;
//Define HackOn as a number, and that numebr is zero.
int HackMax = 10;
//Define HackMax as a number, and that number is ten.
bool test = false;
//Define test as a true/false. "Boolean"
#define ADDR_SBULLLETS			0x374BBF16 
//The definition of ADDR_SBULLETS
//End of Globals
void Main (void)
{
	while(1)
		//Makes an infinite loop. One that doesn't end.
	{
		if(GetAsyncKeyState(VK_NUMPAD1)&1)
			//When Numpad1 Gets Pressed
		{
			test = (!test);
			//if test = false, turn to true and vice versa
		}
		if(GetAsyncKeyState(VK_NUMPAD2)&1)
			//When Numpad2 Gets Pressed.
		{
			HackOn ++;
			//Adds +1 to the variable, "HackOn"
			if(HackOn == HackMax) HackOn = 0;
			//When Hackon Reaches the number HackMax, it resets HackOn to 0
		}
		if(test)
			//if test is true
		{
			memcpy( (PBYTE)ADDR_SBULLLETS, (PBYTE)"\x33\xC0\x90", 3 );
			//look in globals for the definition of ADDR_SBULLETS
			//Basically, it edits the bytes of the memory to "\x33\xC0\x90".
			//The number at the end, tells you how many bytes you are editing.
			//The first part, ADDR_SBULLETS Shows the code which part of the memory we are editing.
		}else{
			//if test is not true
			memcpy(  (PBYTE)ADDR_SBULLLETS, (PBYTE)"\x0F\x94\xC0", 3 );
			//look in globals for the definition of ADDR_SBULLETS
			//Basically, it edits the bytes of the memory to "\x0F\x94\xC0".
			//The number at the end, tells you how many bytes you are editing.
			//The first part, ADDR_SBULLETS Shows the code which part of the memory we are editing.
		}
	}
}
DWORD WINAPI Lesson (LPVOID)
// This is just a dummy function that will be the code activate the main thread
{	
	Main();
	//Call the thread called Main
	return 1;
	//Finish of the thread.
}

BOOL WINAPI DllMain ( HMODULE hDll, DWORD dwReason, LPVOID lpReserved )
// DllMain is an optional function for you to declare.
// It serves as the entry point for any DLL
{
	DisableThreadLibraryCalls(hDll);
	// Make a call to DisableThreadLibraryCalls with the hModule variable
	// as its argument; Doing this is an optimization trick to prevent
	// needless thread attach/detach messages from triggering further calls
	// to our DllMain function.
	if ( dwReason == DLL_PROCESS_ATTACH )
	{
		//When this dll is injected into the process. this is what the dll is supposed to do.
		// Null, in C Plus Plus, nothing. It is defined as 0
		CreateThread(NULL, NULL, Lesson, NULL, NULL, NULL);
		//It creates the thread called "Lesson" which is defined a few lines up. DWORD WINAPI Lesson (LPVOID)
	}
return TRUE;
// Although the return value doesn't actually matter. You return the value TRUE or FALSE indicatinng success or failure.

}