Need some polishing advice or direction on this project.

[theascen]

I used "//" needing attention and direction.
This program will compile if anyone is interested in giving it a whirl.
Any advice pertaining to my situation would be great.
See http://www.cplusplus.com/forum/general/97739/ for previous post.

#ifdef _MSC_VER
#define _CRT_SECURE_NO_WARNINGS
#endif

#include<iostream>
#include<iomanip>
#include<sstream>	
#include<string>
#include<fstream>
#include<Windows.h>
#include<winspool.h>
#include<ctime>


using namespace std;

class InvBin
{
private:
	string description;
	int qty;

public:
	InvBin(string d = "empty", int q = 0)
	{ description = d; qty = q;}

	void setDescription(string d)
	{description = d;}

	string getDescription() const
	{
		string s = description;
		return s;
	}

	void setQty(int q)
	{qty =q;}

	int getQty() const
	{return qty;}
};

const int MAX_BINS = 30;

class BinManager
{
private:
	InvBin bin[MAX_BINS];
	int numBins;
	string toString(int) const;

public:
	BinManager()
	{numBins = 0;}

	BinManager(int, string[], int[]);

	string getDescription(int binNum) const
	{return bin[binNum-1].getDescription();}

	int getQuantity(int binNum) const
	{return bin[binNum-1].getQty();}

	string displayAllBins() const;

	bool addParts(int, int);
	bool removeParts(int, int);
};

BinManager::BinManager(int size, string d[], int q[])
{
	numBins = size;

	for (int item = 0; item < numBins; item++)
	{bin[item].setDescription(d[item]);
	bin[item].setQty(q[item]);
	}
}

string BinManager::displayAllBins()const
{
	string binInfo = "";

	for (int binNum =1; binNum <= numBins; binNum++)
	{
		binInfo +=" " + toString(binNum) + "   " +
			bin[binNum-1].getDescription()+"    "+
			toString(bin[binNum-1].getQty())+"\n";
	}

	return binInfo;
}

string BinManager::toString(int num) const
{
	ostringstream ss;
	ss<<num;
	return ss.str();
}

bool BinManager::addParts(int binNum, int numToAdd)
{
	int loc = binNum -1;

	if (numToAdd > 0)
	{
		bin[loc].setQty(bin[loc].getQty()+numToAdd);
		return true;
	}
	else
		return false;
}

bool BinManager::removeParts(int binNum, int numToRemove)
{
	int loc = binNum -1;

	if (numToRemove > 0 && numToRemove <= bin[loc].getQty())
	{
		bin[loc].setQty(bin[loc].getQty()-numToRemove);
		return true;
	}
	else
		return false;
}

void displayMenu();
int getChoice(int);
void addParts(BinManager &);
void removeParts(BinManager &);
void displayBins(const BinManager &);

const int	BINS_IN_USE = 9,
			MAX_CHOICE = 4,
			QUIT = 4;

int main()
{
int choice;

string itemNames[]={"Regular Pliers     ", "N. Nose Pliers     ",
	"Screwdriver        ", "P. Head Screwdriver", "Wrench-Large       ",
	"Wrench-Small       ", "Drill              ", "Cordless Drill     ",
	"Hand Saw           "};

int quantity[] ={25, 5, 25, 5, 7, 18, 51, 16, 12};

BinManager inventory(9, itemNames, quantity);

displayBins(inventory);

do
{
	displayMenu();
	choice = getChoice(MAX_CHOICE);

	switch (choice)
	{
	case 1: addParts(inventory);
		break;
	case 2: removeParts(inventory);
		break;
	case 3: displayBins(inventory);
		break;
	}
} while(choice != QUIT);

system("cls");


HANDLE screen = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(screen,127+12);

cout<<"    **********************    \n"
	<<"     End Of Day Inventory     \n"
	<<"    **********************    \n";
SetConsoleTextAttribute(screen,15);
	displayBins(inventory); 
	
	//I want to output displayBins(inventory) to outputFile see below...
	//Is there a better more efficient way?
	

	ofstream outputFile; 
	outputFile.open("InventoryUpdateSheet.txt");
	time_t now = time(0);
    char* dt = ctime(&now);

	outputFile<< "            "<< dt <<"\n\n"
	<<"            **********************    \n"
	<<"             End Of Day Inventory     \n"
	<<"            **********************    \n"
	<<"____________________________________________________"<<endl
	<<"1.	Regular Pliers          "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"2.	N. Nose Pliers          "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"3.	Screwdriver             "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"4.	P. Head Screwdriver     "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"5.	Wrench-Large            "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"6.	Wrench-Small            "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"7.	Drill                   "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"8.	Cordless Drill          "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"9.	Hand Saw                "<<quantity<<endl//Not sure what code here to update output qty to text file?
	<<"____________________________________________________\n\n"<<endl
	<<"            Press [Ctrl+P] to print\n";
	
	outputFile.close();
	
	cout<<"\n\nFile opened for printing...\n\n";
	system( "notepad.exe InventoryUpdateSheet.txt" );
	
	system("pause");
	return 0;
}

void displayMenu()
{
	HANDLE screen = GetStdHandle(STD_OUTPUT_HANDLE);
	SetConsoleTextAttribute(screen,3);
	cout<<"\n\n    Inventory Control Menu \n\n";
	SetConsoleTextAttribute(screen,15);
	cout <<" 1   Add parts to a bin\n";
	cout <<" 2   Remove parts from a bin\n";
	cout <<" 3   Display bin status report\n";
	cout <<" 4   Quit\n\n";
	cout <<"Choose [1-4]: ";
}

int getChoice(int maxChoice)
{
	int choice;
	cin>>choice; // keep to a number, else loop again


	while (choice < 1 || choice > maxChoice)
	{
		cin.clear();
		HANDLE screen = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleTextAttribute(screen,4);
		cout<<"Choice must be between 1 and "<<maxChoice
			<<". Re-enter choice: ";
		SetConsoleTextAttribute(screen,15);
		cin>>choice; 
	}
return choice;
}

void addParts(BinManager &inventory)
{
	int binNum,
		numToAdd;

	cout<<"\nEnter bin Number (1- " << BINS_IN_USE << "): ";
	binNum = getChoice(BINS_IN_USE);

	cout<<"\nCurrent status of bin #"<<binNum<<": "
		<<inventory.getDescription(binNum)<<"   "
		<<inventory.getQuantity(binNum)<<"\n\n";
	cout<<"Enter number of parts to be added: ";
	cin>>numToAdd; // keep to a number, else loop again

	if(inventory.addParts(binNum, numToAdd))
	{
		HANDLE screen = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleTextAttribute(screen,128);
		cout<<"\nNew status of bin #" <<binNum<<":     "
		<<inventory.getDescription(binNum)<<"   "
		<<inventory.getQuantity(binNum)<<"\n\n", 
		displayBins(inventory);
	}
	else
	{
		HANDLE screen = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleTextAttribute(screen,4);
		cout<<"Invalid quanity. Add was not performed.\n";
	}
}

void removeParts(BinManager &inventory)
{
	int binNum,
	numToRemove;

	cout<<"Enter bin Number(1-)" << BINS_IN_USE << "): ";
	binNum = getChoice(BINS_IN_USE);

	cout<<"\nCurrent status of bin #"<<binNum<<": "
		<<inventory.getDescription(binNum)<<"   "
		<<inventory.getQuantity(binNum)<<"\n\n";
	cout<<"Enter number of parts to be removed: ";
	cin>>numToRemove;

	if(inventory.removeParts(binNum, numToRemove))
		{
		HANDLE screen = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleTextAttribute(screen,128);
		cout<<"\nNew status of bin #" <<binNum<<":     "
		<<inventory.getDescription(binNum)<<"   "
		<<inventory.getQuantity(binNum)<<"\n\n", 
		displayBins(inventory);
	}
	else
	{
		HANDLE screen = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleTextAttribute(screen,4);
		cout<<"Invalid quanity. Add was not performed.\n";
	}
}

void displayBins(const BinManager &inventory)
{
	HANDLE screen = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleTextAttribute(screen,5);
	cout<<"______________________________\n"
		<<"Bin        Part            Qty \n"
		<<"______________________________\n";
	SetConsoleTextAttribute(screen,15);
	cout<< inventory.displayAllBins();
}