Software Development Forum

Hi, guys! My project is to create a chat software in Java. For security i must use Digital signatures+ Java Postgre sql... How to do it? Steps, codes, references, etc... HELP ME!

Hello, I am having trouble using ctypes to call a Dll function. In short, the function accepts a pointer to an array of structures....like: [CODE] int arrayFiller( USHORT sensorID, void *pRecord, int recordSize ); [/CODE] I have generated a pythonified version of the function by importing the Dll etc. We …

I have created a C++ Win32 Dll. I have created a .def File which contains the names of the functions in Win32.Dll As: 1Win32.cpp includes a class library file named gs.tlb It has functions named sum, strupper 1win32.def as LIBRARY "1WIN32" EXPORTS sum strupper When i try to register the …

I have the following code in my asp page: [code] Imports System.Data.SqlClient Imports System.Data Partial Class _Default Inherits System.Web.UI.Page Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Dim dt As DataTable Dim connectionString As String = "Initial Catalog=mdr;Data Source=xxxxx;uid=xxxxx;password=xxxxx" Dim con As New SqlConnection(connectionString) Dim cmd …

Hi!Good day.this is my first time to post here. Iam using visual c# 2008 and Im new to it.Im developing a system,Ordering/Sales Monitoring and Inventory system as a part of my requirement in school(my thesis). The system that Im working will be used by a company for REAL so Im …

Hey can anyone tell me what is this error all about? "Key column information is insufficient or incorrect. Too many rows were affected by update." I am trying to update some fields in my database tables and its giving this error. When i say debug its highlighting the update statement. …

Hi, all Does somebody know how to open text file with half of its name using vb6. example i have 2 files in C:\, they are : 1. Myfile10001.txt 2. Myfile20001.txt I want to read file no.2 with 7 characters first (Myfile2xxxx.txt), and ignore next characters. my script is : …

Hey I am using a devexpress tabcontrol. I have a created a program that allows the user to select an option button and that button takes them to the correct tab. Ive set all the tabs to visable = false untill the option button has been selected. The problem i …

Hi everybody, I decided to ask it here because i didn't know how to ask it on google, i want to know what does this line do: : ${dummy_msg:="Nothing started."} Thanks.

Hi All, I am a software developer C/C++, not expert in network programming but did a little bit. I work as s free lancer and have been tasked to implement UDP server (Broadcaster) over internet (Server machine has Static IP assisgned by ISP so reacheable from any part of world, …

Hi, I'm having a strange problem with my linked list program. This is slightly embarrassing because I'm getting back to coding in C++ after 4 years and don't remember much. This is the code [CODE]#include<iostream.h> #include<conio.h> #include<string.h> void printList(struct node *&); struct node { node* next; int data; }; int …

Having got the old program to work (more or less) as a Console application I have now turned my attention to making it work as a 'proper' program. My first attempt was to generate the 'Hello World' string as a message box. I found I had to cast the second …

Hello all I have a query,may be silly but i have to clear it.IT IS REGARDING THE UPCASTING.I want to "when we can invoke the methods of base class using the object of derived class.then what is the need of assigning the subclass object to base class reference." I mean …

How to move data from sql server to excel sheet.

Could someone help me with my problem here? I am using C# and working on a project in visual studio 2008 with SQL server express as the database. In visual studio 2008, I have a project and two forms. The first form that is named 'Informations' has a single datagridview …

[code] private void btnBackup_Click(object sender, EventArgs e) { Backup bkp = new Backup(); this.Cursor = Cursors.WaitCursor; this.dataGridView1.DataSource = string.Empty; try { string fileName = this.txtFileName.Text; string databaseName = this.ddlDatabase.SelectedItem.ToString(); bkp.Action = BackupActionType.Database; bkp.Database = databaseName; bkp.Devices.AddDevice(fileName, DeviceType.File); bkp.Incremental = chkIncremental.Checked; this.progressBar1.Value = 0; this.progressBar1.Maximum = 100; this.progressBar1.Value = 10; bkp.PercentCompleteNotification …

We need to combine this two codes to create a game in which we have to count how many times we pressed enter for a matter of time. we need to display the instructions above and how many times we hit or pressed the enter button and also the time. …

hey everybody, i have a text file containing some names i place extract those names and i place it in an array an then i compare it with the input from JTextField i am able to compare them and find the values that match. what i want is if the …

Hello.. I am working on this project which is to use a matrix to encrypt a string& a text file and to decrypt them as well. The matrix that I need to use is this one, but I still don't know how to make it shift each character to the …

Hey guys, I'm making a global operator, and I have a line where I'm comparing a std::string::difference_type to a std::string::size_type, I think the difference_type is usually a signed integer, and the size_type an unsigned.. Any ideas for an algorithm change? Also, there is a lambda function used I would like …

Hi, I'm making a printable Purchase Order form using Crystal Report. This report retrieves data from two tables. Example, I have fields PONumber,DateofPO,Airline,DateofFlight,ETA,ETD from a table called tblFlight. I have fields PassengerName and Rate on another table called tblPassenger. Each PONumber can have multiple passengers. How can I get it …

Hi i am going to code a resturant booking system and i need help.. Can you give me idea on how i can design my database? i would like this system to take table reservation, tables orders, take aways, crud of menus etc.. u have any idea how to do …

i get this warning message when I try to include the "using System.Data.MySqlClient;" directive. 'mysqlclient' is missing in the 'System.Data' yet I have installed the connector. what could be the problem?

Hi all, Once again I am here with a simple problem which is hard enough to solve by myself: I got the following keys in an array: [CODE] 20110225104849 20110225104833 20110225104848 [/CODE] And following files in a folder: [CODE] google_20110225091600.7z google_20110225091622.7z google_20110225100306.7z google_20110225100410.7z google_20110225104833.7z google_ready_20110225100410.txt google_ready_20110225104833.txt Yahoo_20110225091639.7z Yahoo_20110225100320.7z Yahoo_20110225100424.7z Yahoo_20110225104849.7z …

i'm having problems displaying XML. When i remove 3rd line i got error(that on line 5 is an extra bit, that is wrong...), and when i keep 3rd line i cant see anything when displaying it on website.. :( i'm not a XML pro so help would be appreciated [CODE]<?xml …

hi, i'm using flash file to open to next screen but i have no idea how to do that using the code...below is my code. i'm having problem to code at red highlighted area.How do i make it to link or show the next form once the button clicked. PLEASE …

Hello, I'm trying to select a good IO module. My goal is industrial control: sensors and push buttons for inputs and ssr's and lamps for outputs. I have VB 6.0 (not professional) I'm looking for about 16 I and 16 O. . . once recieving the module, typically, are there …

I am working in C# windows application and SQL I have one problem i.e I want to know that can we search data directly from database. for table we write a queary = Select * from tablename. like that is there is any queary to directly search from entire database …

Hello. I'm not very familiar with RichTextBox so I don't know if it can do what I'm thinking. I have 2 textbox, Quantity and Type. What I want is, when type in both, and click Save, it will save in the RichTextBox. Then click Clear, the text in both textbox …

Dear Sir/Madam I am getting the list item of a listbox as ToolTipTest on mouse move event. How can I get the list item of a listbox as ToolTipTest by pressing Up or Down Arrow Key on KeyBoard. Please guide me. How i have got the list item as ToolTipText …

hey...i trying to pass the data from Combination class to sorted list and display result from the sorted list? I had been try for many times but the result is not right? Could someone can help me?

good, i am having trouble on how to insert record date in my access db. i am using hdate as my field and his data type is short date here is my code [CODE] cmd.CommandText = "INSERT INTO hold ([hdate], des) VALUES (#" & myDate & "#, '" & TextBox1.Text …

[CODE] Restore res = new Restore(); this.Cursor = Cursors.WaitCursor; this.dataGridView1.DataSource = string.Empty; try { string fileName = this.txtFileName.Text; string databaseName = this.ddlDatabase.SelectedItem.ToString(); res.Database = databaseName; res.Action = RestoreActionType.Database; res.Devices.AddDevice(fileName, DeviceType.File); this.progressBar1.Value = 0; this.progressBar1.Maximum = 100; this.progressBar1.Value = 10; res.PercentCompleteNotification = 10; res.ReplaceDatabase = true; res.PercentComplete += new PercentCompleteEventHandler(ProgressEventHandler); res.SqlRestore(srv); …

Hello I am getting the above error message with my program. The line giving the error is marked. What I am trying to do is create a file, (new.ppm) and have it then returned onto stdout. [code=c] FILE *fp; fp = fopen("new.ppm", "w+"); //creates the new file fprintf(fp, "P3\n%d %d\n255\n", …

How to create AssemblyInfo.vb, Resources.resx and Application.myapp in vb.net 2005? I recently see these things come along with vb.net sample code everywhere. Suppose I try to create new project and I want the AssemblyInfo.vb, Resources.resx and Application.myapp appear under "My Project", how can I do that? many thanks for reviewing.

Why code: [CODE]client->Credentials = gcnew NetworkCredential("username", "password");[/CODE] doesnt work for me? [CODE]Error 1 error C2061: syntax error : identifier 'NetworkCredential' [/CODE]

Hello can you help me please i got problem in using the list view,I don't know how to use it First i want to know how to make header and populate records in my recordset...or display all the records...can you help me please.Thank you in advance hoping for your positive …

I am disassembling an exe file trying to find out how some parts of it work so we can make an easier modification then the current system works (which is just copy and overwriting files). I found some functions in there that refer to a MPGameSetupPage.cpp (which obv i can't …

How do I do code a notice to Facebook If it came a new message is activated A particular event I can use webbrowser ?

i have two programs.. say 1) intermediate.c ( which creates and intermediate file ) 2) result.c ( which creates final csv file).. is it possible when i execute second program, first automatically generate the intermediate file which is being used in second program?

hi all... create a loop for D link switch for both UPL and NMS ports..... can anyone plz explain about Dlink thanks in advance....

[CODE] //file included from main.cpp #include <iostream> #include <ctime> void generate(int height, int width) { int i,j,random,x,y,check; char map[height][width]; bool way[4], border[3]; srand(time(NULL)); //[error 'srand' was not declared in this scope] for(i=0; i<height; i++) { for(j=0; j<width; j++) map[i][j] = 178; } x = rand()%height; //[error: 'rand' was not declared …

Hi guys. I have some questions about very long diagram that I have to make. In short lines the task is this: airplanes and airports. The airports have these characteristics: One runway and multiple hangars. Some of the airports are only military. The airplanes have these characteristics: Capacity. Speed. Max …

in visual studio 2008 C#, I'm using Developer Express v2010 v10.2.4 to develop a form. when I run the form in other pc, It pop out a message(look at pic in attach).Run in my develop pc is OK. Detail message is See the end of this message for details on …

Basically, I am using a simple WebBrowser.Navigate command to access an IP camera across our LAN. After authenticating myself, I am brought to the video screen. After the video lasts some seconds, VB will hang and I am forced to restart my computer. On a regular IE browser, it does …

please help me, i want to split records using stored procedure Record1 = 1,2,3,4,5,6 I want to split record1 values and insert in the table but different rows... please guide me... thank you :)

I'm creating a voting program in which you input the persons name and how many votes they have received. It than prints out the persons name, their amount of votes and the percentage of their votes from the total. I can't seem to get the percent of total to work …

ive been implementing this formula and it doesnt give me the right ans. is this applicable? p3tc = ((p2tc - p3at.Text) + p2tc) + p3bt.Text can someone please rearrange this formula to an effective and better formula. :) i create another form to try if this given value really works …

Hi What is the use of assembly language now days.

Is their ANY way to do something like: [code] for (int x=1; x<3; x++) {string MyArray[1][x]={"-"};} [/code] Assuming the array has already been defined? I really don't want to have to do: [code] MyArray[1]={blah} MyArray[2]={blah} MyArray[3]={blah} etcetera etcetera [/code] I'm not necessarily looking for efficiency but seriously, initializing 50 arrays …