Visual C++ :: Implementing Classes And Creating Driver Function?

C++ :: Implementing Classes And Creating A Driver Function?

Nov 30, 2012

For this problem, you will design and implement 2 classes and then write a driver function to test these classes. The first will be a C++ class for an abstract data type color with a public enumeration type colorType that has the color values shown in Listing 10.8. Your abstract data type should have an attribute for storing a single value of type colortype and member functions for reading (readColor) and writing (writeColor) a color value as well as setting and accessing it. The function readColor should read a color as a string and store the corresponding color value in the value attribute of a type color object. The function writeColor should display as a string the value stored in the value attribute of a type color object (see Figure 7.5). Modify class circle and the driver function in Listing 10.9 to include and use this class. You'll need to remove the declaration for color in class circle. Test your modified driver function with the new color and circle classes.

The second class will be to design and implement a rectangle class similar to class circle. Be sure to incorporate the new color class you have written and tested in the first part of the programming exercise. Write a client program that asks the user to enter a shape name (circle or rectangle) and then asks the user for the necessary data for an object of that class. The program should create the object and display all its attributes.

The circle class .h and .cpp files as well as the original driver function will be supplied. You are to provide the .h and .cpp files for the new color class and the modified driver function as well as the .h and .cpp files for the rectangle class and the client program that uses all three classes.

What I have so far, and I'm pretty lost;

color.h

Code:

Code:
//color.h
//Color class definition
#include "stdafx.h"
#ifndef COLOR_H
#define COLOR_H
class color {
public:
enum colorType {black, blue, green, cyan, red, magenta, brown, lightgray, nocolor};

[code].....

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Visual C++ :: Binary Search Tree - Implementing Insert Function

Nov 18, 2013

I am unable to implement the insert function properly,every time i run the program i just get the first value and name,i am not getting other Id's and name.

Code:
"(Header File)"
#include <iostream>
#include <string>
using namespace std;
class node {
public:
int ID;
node (string StudentName, int IDNumber) {

[Code] ....

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Visual C++ :: Out Of Memory And Driver Could Not Be Loaded Due To System Error 8

Jan 21, 2013

I am getting "driver could not be loaded due to system error 8" error while connecting to SQL Server 2005 from VC++. Its also throwing out of memory error. Basically i am developing and ISAPI dll. I use the following code to connect to DB.

CDatabase DBConnection;
if(! DBConnection.IsOpen()) {
DBConnection.OpenEx("Driver={SQL Server};Server=10.120.110.30;Database=Test;Trusted_Connection=yes;", CDatabase:penReadOnly | CDatabase::noOdbcDialog);

[Code] .....

for CDatabaseConnection, i can see 2 different method to open the connection, OpenEx and Open. Whats the difference between OpenEx and Open?

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C++ :: Creating Bank Accounts Using Classes

Feb 25, 2014

I am creating a bank account using classes. I have created the classes and now implementing them in my main program. I haven't written anything in the withdraw, find acct and all functions except "read account: read_acct()" because i wanna test if it reading the data from my .txt file or not. Dont know whats wrong with the program its not executing. Would let know that i'm new to classes and objects. Following is the code:

****************************************************
*************MAIN PROGRAM*************************
****************************************************
****Bank Accounts.cpp****

[Code]....

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C# :: Creating Custom If Statement Classes?

Jun 19, 2014

I've been working on a project for a few days now, and within this project I need to have a class system that can function similarly to an if statement. The problem I'm having is I can't seem to find any good information on the order in which if statements process the information within it. I understand that if statements process whatever's in parenthesis first, but my question is that when their are several booleans of equal value, for example: "if(x == 1 && y == 2 || 3 == 4 && 4==6)", in what order does it process these true or false statements? (The actual content of the example is superfluous).

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C++ :: Creating A Game - Use Classes For Rendering Objects?

Mar 16, 2014

I am creating a game and I using classes for other things in my game, I was wondering if i should use classes for rendering objects?

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Visual C++ :: Creating A Function That Needs To Determine Perfect Scores

Jun 24, 2013

This program is incomplete as I am having difficulty creating the function that needs to find the number of perfect scores entered by the user. I have everything but the function complete ,here is my code:

Code:
// Write a modular program that accepts at least 10 integer test scores from the user and stores them in an array.
// The main should display how many perfect scores were entered (i.e., scores of 100), using a value-returning countPerfect function.
// Input validation: Do not accept scores less than 0 or greater than 100.

#include <iostream>
using namespace std;
int countPerfect(int intArray[], int); // Function prototype

[Code] ....

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C++ :: Creating Template Of Array To Use For Classes Line And Point

Jun 14, 2012

I want to create template of of Array in order to have possibility use this template for classes Line and Point.

Code:
// Array.h
// Templated Array class containging Ts
#ifndef Array_H
#define Array_H
template <class T=double> class Array {

[Code] .....

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Visual C++ :: Dice Game - Creating Pass By Value Function Reference

Nov 27, 2014

i have a project where i create a dice game, the user rolls 2 dice and the computer roles 2 dice. the player that wins 3 out of 5 rolls wins the game. I have completed the requirements, but i wanted to create a pass by value function for "void Dice()", I'm not too sure how that works?

Code:

#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
//creating my variables and their values
int compinput;

[Code] .....

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Visual C++ :: Creating Program To Make Sine Function Without Any Library Other Than Iostream?

Nov 10, 2012

My assignment is to create a C++ Program to find the sine of a number without any library other than iostream by using Taylor Series:

sin (x) = (x/1!) - (x^3/3!) + (x^5/5!) - (x^7/7!) + (x^9/9!) ...... (x^n/n!).

Here is what i have done till now:

#include <iostream>
double fact (int f); //declaration of factorial function
double power(double x, int y); //declaration of power function
double sin(int x); //declaration of sine function
//double cos(int x); //declaration of cosine function
//double tan(int x); //declaration of tangent function

[code]....

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Visual C++ :: Implementing Parameter Argument To Exe

Nov 5, 2013

i have this Stealth Injector source from internet so this program is for injecting .dll to an .exe this program was made by someone to used for cheating in online game but i need to use this program in my private server game online to tell the game client .exe the server IP, that is stored in a dll file.. the problem is i don't want the player to directly execute this program, but they need to run the game patcher first to do the patch.. so i need to put some secret parameter argument that will block player from direct execute..

i know nothing about c++ i only know that you need to use main(int argc, char *argv[]) i've try to put something like this

Code:
int main(int argc, char* argv[]){
stringstream sparam;
string param;

[Code].....

the code works fine but the rest of code won't executed..

i've attached the cpp and header files for you guys to check source.rar

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C++ :: Implementing Ksmall As A Function

Mar 19, 2013

Implement ksmall as a C++ function. Use the first item of the array as the pivot. This is what I have so far, but everytime I compile it crashes ....

#include <cstdlib>
#include <iostream>
using namespace std;
int kSmall(int k, int anArray[], int first, int last);

[Code] ....

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Visual C++ :: Implementing Dynamic Database Structures?

Mar 21, 2013

We're designing a new software and we want it to be customizable without code. That, for us, mean we can change the software behaviour without re-writing code. All will be developed using C and .NET.

One of our goals is to have what we are calling "dynamic tables". This means that these database tables may have different fields depending on the customization. We got to know it using high-level ERPs like SAP or CRM's system like VTIGER or even SalesForce. Let me give an example:

CUSTOMER TABLE:

FIELDS: ID, NAME, ADDRESS, PHONE.

This would be the standard Customer Table.

Now, a new customer needs to add FINANCE SCORE and RANKING to the database. We them would like to go to our application (not the database itself) and adding these new fields. After that, all of my input forms and reports would start to show and process these new fields.

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Visual C++ :: Implementing Real Time Graph To Application?

Nov 15, 2013

I was assigned a project to implement a real time graph to an application which continuously outputs data numerically through the GUI. The application that was created to do this is written in C.

I have to turn those numerical numbers into a graphical display that is periodically updated to appear as real time.

My adviser suggested using NTgraph [URL] ...... I had no clue how to implement this to my code and was finally able to understand that the .OCX needs to be registered as a COM and then imported to the application using visual studios. However, I get an error when I try importing it since it is in C (Visual Studios 8) and not an MFC application.

So my question is if it would be possible to implement the ActiveX control to my application even though it is not an MFC application and how to go about it.

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Visual C++ :: Implementing Tool Tip In Listctrl Of Report Type

Feb 21, 2014

Below is my Code Code snippet wher I am facing problem.

every time "pNMHDR->idFrom" is returning 0.

I even put "EnableToolTips(TRUE);" in the oninitdialog method of dialog class.

BEGIN_MESSAGE_MAP(CMyListCtrl, ListCtrl)
.
.
.
ON_NOTIFY_EX(TTN_NEEDTEXTW, 0, OnToolTipText)
ON_NOTIFY_EX(TTN_NEEDTEXTA, 0, OnToolTipText)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

[Code] .....

I am not able to get the text of a listctrl cell.

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C :: Implementing Non Blocking UDP Socket By Select Function

Apr 22, 2013

I wanted to create an asynchronous/non-blocking udp client server application where the client and server were supposed to chat away with each other without waiting for each other's turns. I came to know that this could be done by select()... here is my Server(Mentioning only the communication part):

Code:
fd_set readfds,writefds;
while(1){
FD_ZERO(&readfds);
FD_ZERO(&writefds);
FD_SET(sd,&readfds);
FD_SET(sd,&writefds);

int rv = select(n, &readfds, NULL, NULL, NULL);

[Code] .....

At first on the server side I wrote:
int rv = select(n, &readfds, &writefds, NULL, NULL);

But that led to the printing of an entire empty array on the server console when the server initialised in addition to the fact that communication between the server and client was not proper. removing "&writefds" did remove the redundant data but the improper communication issue still persists...

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C++ :: Implementing Recursive Function To Print Linked List In Reverse Order

Nov 29, 2014

Implement a recursive function named void printBack(DoublyLinkedNode<T>* node) for the class DoublyLinkedCircularList which will print out the elements in the list from back to front. The function is initially called with the first node in the list. You may not make use of the previous(prev) links

This is my solution where I got 2 out of a possible 3 marks:

template<class T>
void DoublyLinkedCircularList<T> :: printBack(DoublyLinkedNode<T>* node) {
if(node->next == NULL) //Correct- 1 mark
return 0;
else
printBack(node->next); //Correct - 1 mark
cout << current-> element << " ";
}

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C/C++ :: How To Use UMDF Driver Request Buffers

Feb 18, 2015

I am trying to create "dummy" drivers for testing purposes of another program of mine.

I want to be able to Call DeviceIoControl and pass a string in as the buffer and then receive that string in the driver, change it and return it. But right now I am not able to receive the string, when i get the buffer and print it out it is garbage. Where am I going wrong?

TEST

int _tmain(int argc, _TCHAR* argv[]) {
BOOL freeResult, runTimeLinkSuccess = FALSE;
HANDLE RTC_IOControlHandle = NULL;
HINSTANCE FRS_IOControlHandle = NULL;
RTC_IOControlHandle = CreateFile(L"\.ROOT#SAMPLE#0000#{db3d5a0e-63aa-4b97-9d05-b50d5093a20f}",
FILE_SHARE_READ | FILE_SHARE_WRITE,
0,//FILE_SHARE_READ | FILE_SHARE_WRITE,

[code]....

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C/C++ :: How To Use Node Struct In Test Driver

Jul 24, 2014

I have a file system class that has a struct named Node declared private as so:

class FileSys{
private:
struct Node {
Node* next;
Node* prev
Node* parent;
int key;

[Code] ....

But how would I get to the Node struct? I tried to do this in the main but of course I received an error:

FileSys FS_Obj;
FS_Obj Node* T = new Node;

With errors:

Error: expected ; before Node
Error: Statement has no effect

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C/C++ :: Developing PDF Printer Driver For Windows?

Apr 29, 2015

I've got a project to develop a virtual pdf printer driver for windows in C++ programming language.

how to develop a virtual pdf printer driver. google only shows results for .NET languages but I need for C++ language only.

How to proceed to develop this driver.

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Visual C++ :: Include Object From Another ATL COM DLL - Employee Classes?

Nov 7, 2014

This refers to an ATL COM DLL project. I can successfully create a class hierarchy of objects, ie. say, one class is the TEAM, which then holds other objects, say, a leader and a secretary, both of which are Employee Classes . Here goes my question:

a) In the Team.h header file I declare m_pLeader as a CComPtr<IEmployee>

Code:
classATL_NO_VTABLE CTeam :
public CComObjectRootEx<CComSingleThreadModel>,
public CComCoClass<CTeam, &CLSID_Team>,
public IDispatchImpl<ITeam, &IID_ITeam, &LIBID_BUOBJ05Lib, /*wMajor =*/ 1, /*wMinor =*/ 0>
{
private:
CComPtr<IEmployee> m_pLeader;
CComPtr<IEmployee> m_pSecretary;

b) The Employee Class is defined within this ATL COM project.
c) In the Team.cpp file, I create an instance in the FinalConstruct code, the focus is on the CEmployee

Code:
HRESULT CTeam::FinalConstruct(){
CComObject<CEmployee>* pLeader;
HRESULT hr=CComObject<CEmployee>::CreateInstance(&pLeader);
if (FAILED(hr))
return hr;
m_pLeader=pLeader;
// ..same for secretary...
return S_OK
}

d) Here comes my QUESTION: How must I proceed if the Employee object was part of another ATL COM DLL, that is it would be described in another DLL that I would now like to reuse? I guess I need to

1. Have the other DLL's idl-, tlb, and h file in my project folder. Let me name it "other.h, other.idl, other.tlb"

2. Both h- and cpp-file must have an #include "other.h" statement -- please correct if I am wrong..

3. ...but how must in the Team's h- and cpp-files the statements be (assuming the class in the "other" Dll is Member (instead of Employee? I know the following code will NOT work, so I am asking how it should be correctly?

Code:
private:
CComPtr<IMember> m_pLeader;

4. and in cpp file for:

Code:
CComObject<CMember>* pLeader;
HRESULT hr=CComObject<CMember>::CreateInstance(&pLeader);
[/code]

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C++ :: Linked List Interface / Implementation And Driver File

Jun 12, 2013

I am having difficulty calling the constructor in interface portion of my program. I get the error: no matching function for call to ‘Node::Node(int, NULL)’ when I try to call it on line 26 within the main function.

code:
interface: [URL]
implementation: [URL]
main file: [URL]

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C# :: Programmatically Install / Remove INF Driver Through Button Event

May 14, 2014

How to install/remove an INF driver though a button click event. So far I have some code for installing the driver, however it doesn't work.

private void installDriversToolStripMenuItem_Click(object sender, EventArgs e) {
if (SetupCopyOEMInf("./PS3MCADriver/PS3_Memory_Card_Adaptor.inf", null, 0, 0, null, 0, 0, null)) {
foreach (string device in devices) {
UpdateDriverForPlugAndPlayDevices(IntPtr.Zero, device, "./PS3MCADriver/PS3_Memory_Card_Adaptor.inf", 0, false);

[Code] .....

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Visual C++ :: Friend Classes In Separate Header Files?

Nov 25, 2012

I am struggling to enable friendship between two classes in separate header files for a banking program.

I am attempting to get the Person class to use variables from the Account class. Heres what I have so far.

ACCOUNT.h:

Code:
#include<iostream>
#include<fstream>
#include<cctype>
#include<iomanip>
#include <string>
#include <math.h>
#include <windows.h>
#include <vector>
#include "Person.h"
using namespace std;
class person;

[code].....

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Visual C++ :: Destroying CArray Of Cobject Derived Classes

Nov 21, 2013

I use a CArray<CClase1,CClase1> m_Clases1.

CClase1 is derived of CObject. " class CClase1 : public CObject"

When, at last I do : "m_Clases1.RemoveAll()" , I suppose that the CClase1 destructor is called. But when i do this the program fails.

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