Software Development Forum

Hello, I was doing some research on enumerating the different drives on a system, and I found some code on MSDN. Here is the page: http://msdn.microsoft.com/en-us/library/windows/desktop/aa364975%28v=vs.85%29.aspx The source code looks like this: DWORD dwSize = MAX_PATH; char szLogicalDrives[MAX_PATH] = {0}; DWORD dwResult = GetLogicalDriveStrings(dwSize,szLogicalDrives); if (dwResult > 0 && dwResult …

How would I write a C++ class of which only one can be created ever be instantiated in any program. I know that ClassName* objectName = new ClassName(); instantiates an object, but how would I make it so when you try to instantiate it more than once you still end …

Okay I'm here with a question about a form I'm creating. It's a simple form that reads in the input from text boxes. I should be able to enter the text, and press my enter button to display it in the display box. I should also be able to save …

I am currently learnning c++ from a text book. but I have come accross an error when trying to run the program. The error reads like this: fatal error C1010: unexpected end of file while looking for precompiled header. Did you forget to add '#include "StdAfx.h"' to your source code? …

Please Explain me the code A a = b as A; Iam confused with it public class A { public virtual void One(); public void Two(); } public class B : A { public override void One(); public new void Two(); } B b = new B(); A a = …

I am able to find and replace in word, however all I want to know is if the word was found, I have tried the following code: This works oDoc.Content.Find.Execute(FindText:=x, ReplaceWith:=y, Replace:=Word.WdReplace.wdReplaceAll) This never give the true statement oDoc.Content.Find.Text = x If oDoc.Content.Find.Found = True Then But why not?

Hello people, I want create and use a simple library but this is the first time, so I need help. 1. If I have cpp file with it's header, how do I create a shared library with g++. 2. After I created the .so library, how do I include it …

I have a Java code block like following: public TcpConnection(TcpSocket socket, long alive_time, ITcpConnectionListener listener) { init(socket,alive_time,listener); start(); } For the conversion in C#, When I try to replace the `start()` method with `System.Threading.ThreadStart()`, it gives an error. How can I start a thread in C#?

I am creating a game of Racing cars in java But the problem is that my car when moved in any direction makes flickering on the screen. As the project is a Core java project it can only be made in a Windows application form. I set the speed of …

Hi I have a datagrid with 2 columns (Scores(Int) index 0 and Comment(varchar) index 1) Comment columnvalue depends on score columnvalue. This code works well in my cellvaluechanged event If e.ColumnIndex = 0 Then If Not IsDBNull(Me.dgvStudDisc.Rows(e.RowIndex).Cells(e.ColumnIndex).Value) Then If Me.dgvStudDisc.Rows(e.RowIndex).Cells(e.ColumnIndex).Value >= 0 And Me.dgvStudDisc.Rows(e.RowIndex).Cells(e.ColumnIndex).Value <= 5 Then Me.dgvStudDisc.Rows(e.RowIndex).Cells(1).Value = "Very …

I have searched the google machine to the ends of they internets and back again and tried everything from clean builds to removing registry entries. This has vexed me for the past week. It all started out as a simple application project windows form style. New project deserves new visual …

Hey Guys, I'm Learning a bit more about things you can do with OpenFileDialog. One of the things was to see if I could move a file to specfic destination depending on the filename. That works fine However come to a halt when trying to do the same thing with …

Hi DW I created a program in NaviCoder For Java and now I want to export it so that it can be a exe file so that it can be executed on a computer on it own without the need of an IDE. Thanks

public class PolarCoordinates { public static void main(String[] args){ int r=10; double x=0,y=0,theta=30; x=r*Math.cos(theta); y=r*Math.sin(theta); System.out.println("The value of x is :" +x); System.out.println("The value of y is :" +y); } } help please? it gives me wrong answer. 10cos(30) should equal to 8.7, but it gives me 11.7 ans. 10sin(30) …

Anyone can tell me what is a module actually? how it differs from others files?

Hello, I made an arbitrary precision integer library a few weeks ago. It works well, but is bounded by `256^(8*sizeof(size_t))` because it uses a simple dynamically allocated array to do its work. I want some way to have theoretically unbounded storage. I think that file io is probably best, but …

Hi Dw I'm creating an atm appication and now my research pointed me to use the Java Point Of Service/Sale (JPOS) my application allow user to choose the amount from the options displayed on the screen and the user will use the number keypad to make his/her selection and the …

Hi all, I have created an abstract class Named Employee and one Sub-Class named FullTimeEmployee. In my abstract class "Employee", i have defined two constructors one without parameter and one with two parameter, both used to intializee first name and last name. My aim is to print payroll for employee …

How can I close a user generated button? Here's the code for the button that creates new user generated buttons: Public Sub Button12_Click(sender As Object, e As EventArgs) Handles Button12.Click TC = TC + 1 Dim TCP As New Integer TCP = TC * 100 Dim NT As New MyButton …

I'm running this code. SHELLEXECUTEINFO ExecuteInfo = { 0 }; ExecuteInfo.cbSize = sizeof(ExecuteInfo); ExecuteInfo.fMask = 0; ExecuteInfo.hwnd = nullptr; ExecuteInfo.lpVerb = L"open"; ExecuteInfo.lpFile = L"C:\\progra~1\\intern~1\\iexplore.exe"; ExecuteInfo.lpParameters = L"http://www.google.co.uk"; ExecuteInfo.lpDirectory = nullptr; ExecuteInfo.nShow = SW_SHOW; ExecuteInfo.hInstApp = nullptr; ShellExecuteEx(&ExecuteInfo); Sleep(5000); CloseWindow((HWND)ExecuteInfo.hwnd); exit(GetLastError()); It's not closing the window. And it's exiting with …

Problem 1: When I need to display my zipcode, I get zipcode and city. Problem 2 : When I enter zipcode I get zipcode not found. This my zipcode and city 60561 Darien 60544 Hinsdale 60137 Glen Ellyn 60135 Downers Grove #include <iostream> #include <string> #include <fstream> using namespace std; …

hi! can someone help me with my problem, I'm using msaccess2003 and vb6. I've been trying to determine how can I save data using one form to two database. the scenario is like this, I have one form, the details of some information of the customer will be input in …

I want to set value for html input text through code behind but can't seem to work :( p.s. i'm new to c# and this is my first c# project. I appreciate any type of help or critic. Thanks! Error in banana.cs: "txt_URL" is not in context apple.html: <%@ Page …

plzz help me with this program #include<iostream.h> #include<conio.h> int sum(int s); int sum(int x); int sum(int j,int k); float sum(float p,int q); float sum(float y,float z); void main() { cout<<sum(0)<<"\n"; cout<<sum(3)<<"\n"; cout<<sum(6,7)<<"\n"; cout<<sum(5.5,8)<<"\n"; cout<<sum(4.9,3.5)<<"\n"; getch(); } int sum(int s) { return s; } int sum(int x) { return x; } …

How do you change the "Apply to" portion of the permissions on a folder from "This folder, subfolders, and files" to "Files only" and to "This folder and subfolders" ?

Hi All, I have created an application that allows a user to select a diectory, where we parse the photos, and upload to a database. The issue that I am having is that I have a button on the form found in the newJFrame.java class called upload that when pressed …

 okay guys this the program in which we have to add a record,modify it or delete it. it adds and shows it successfully but whenever we want to delete a record it doesn't. When we add to records and delete the second one ,the list looks like this,

I know this is going to be really simple, and I'm going to look like a fool when someone answers it, but... I'm tryingto replace any occurrenxe of any of these characters - ?_ with a * in a String I start with replaceAll("[ _-]", "*"); and all is well …

Hi. I want to create a picturebox when a specific button is clicked. The code below displays nothing :( TC has an initial value of 0. It will count he number of times the picturebox has been created. Private Sub Button12_Click(sender As Object, e As EventArgs) Handles Button12.Click TC = …

doing this works : contentPane = new JPanel(); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0, 0)); textArea = new JTextArea(); scrollPane = new JScrollPane(textArea); contentPane.add(scrollPane,BorderLayout.CENTER); setContentPane(contentPane); however this doesnt : contentPane = new JPanel(); textArea = new JTextArea(); scrollPane = new JScrollPane(textArea); contentPane.add(scrollPane,BorderLayout.CENTER); contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); contentPane.setLayout(new BorderLayout(0, …

hi please help me..how can i add checkbox in a listview? i already set the properties of listview checkboxes to TRUE. but it appears in the first column..i wanted it on the last column.. is it possible?? or the other way: programmatically move the first column (with checkbox) to the …

I am writing a program that does one thing, it finds out the current link speed of the wifi connection and reports it to the user in real time. the problem I am having is that it does not seem to be able to find out the current link speed, …

Hi group! I have what I hope is a unique question: In need to populate a combo Box with the information stored in 6 different columns on one row of a data table. I know how to do this if it just one column and one row. To be specific, …

Hey! On Qt, i created an QList<QLabel*> but when i try to access or modify it in later functions i get: Démarrage de C:\Projet QT\Text Based RPG\build-textbasedrpg-Desktop_Qt_5_1_0_MinGW_32bit-Debug\debug\textbasedrpg.exe...ASSERT failure in QList<T>::operator[]: "index out of range", file ..\..\..\Qt\Qt5.1.0\5.1.0\mingw48_32\include/QtCore/qlist.h, line 460 Invalid parameter passed to C runtime function. Invalid parameter passed to C …

I do very little programming these days, but I try to maintain an application for our church that maintains most of it's bookkeeping and report generation. The application is all done in Excel/VBA, using many forms and several workbooks. Yes, we are using antiquated programs (XP/Office 2003) because we are …

Hello, I am using VBA userform in MS Excel to insert data for database purpose. When I tested it for the first time, it was running okay. But after I saved it and used it again to insert the real data, it happens to repeat/duplicate the data to multiple times …

I've tried installing the jackcess libaray (http://sourceforge.net/projects/jackcess/files/) into my project using Project/Preferences/install jar. However, when I try import static com.healthmarketscience.jackcess.Database.*; it just says 'Incorrect package'. How do you install this type of libarary? (I'm a real nooob so sorry if this is obvious). Also - why so many programmers so …

I'm currently working in a java to c# conversion project. In one part I got this Java code snippet. public CustomType someMethod(Message msg) throws IOException { byte[] data = msg.toString().getBytes(); } to my understanding, data contains the byte representation of the string *msg.toString()* But when I try to write it …

notdone = [tuple((x,y))for x in range(5) for y in range(6)] for i in showns: s = lambda :tuple(random.sample(notdone,1)) #random.sample gives a LIST even though I used tuple() print notdone #debug a = s() print a #debug notdone.remove(a) b = s() flashcards[a] = Flashcard((x*20,y*100),i) flashcards[b] = Flashcard((x*20,y*100),i) [(0, 0), (0, 1), …

Hi, I'm wondering if anybody knows of a python compiler to make an exe with. I have tries cx_freeze and py2exe so far, but I haven't been able to get it to work. If anyone has any good python to exe compilers please post here. Thanks, 26bm

public static void main(String[] args){ /*The number of bacteria, B, in a culture that’s subject to refrigeration can be approximated by this formula: B=300000*e^-0.032t Using this formula, write a program that prompts the user for a value of time, calculates the number of bacteria in the culture, and displays the …

Hi i created class a and b is it's child (a:b) public class a { string text = "class a"; public void alert() { MessageBox.Show(text); } } public class b : a { string text = "class b"; } b myb = new b(); myb.alert(); but when i call alert() …

Dear Experts, Thanks for your time. I have got stuck on following problem. I have one file with five column name Chr, Pos Qial GT1 and GT2. In file Column 4 Gt1 is with 01 value only. I like to do comparision between col GT1 and col GT2. I like …

Dear Experts, Thanks for your time. I have got stuck on following problem. I have one file with five column name Chr, Pos Qial GT1 and GT2. In file Column 4 Gt1 is with 01 value only. I like to do comparision between col GT1 and col GT2. I like …

Hello, I have to submit a makefile along with my source code for a project in my data structures class. I have never done this before, so I had to do a lot of Googling. Needless to say, I have successfully created a makefile and ran it, but I have …

I want to create sqlite3 databases from within a python script. I am currently running this code which does not pass the right variable content to the sqlite3 command prompt, so I have one issue there. I also do not want to have the user have an sqlite3 command shell …

Everytime I press the button, it's supposed to change the label, but it doesn't. It also doesn't see that I have made any connections. Please help. Thank you in advance. AppController.m: #import "AppController.h" @implementation AppController -(IBAction)sayHello:(id)sender{ [label setStringValue:@"Hello World!"]; } @end AppController.h: #import <Foundation/Foundation.h> @interface AppController : NSObject{ IBOutlet NSTextField …

I quickly threw together a drawing program in SDL and I am having a couple of issues with lag. The program lags really hard when the size is larger than about 700x700 pixels, and I cannot find anything other than a couple of SDL_BlitSurface calls to the 'image' surface in …

0 down vote favorite Does anyone know a simple way to get the attribute of an obsolete marked methods with NDepend? Obsolete["This is outdated"] //TODO, I want the string!! So any ideas on how to get the string using NDepend?

Okay, so I've created an array that is defined by the user input, they enter a number to determine the amount of elements, then they put in the value of said elements. My program is supposed to remove duplicates from this array. This is what I have so far, it …