Software Development Forum

i am planning to start learning how to use threads. my question is: should i first learn windows.h's functions for threading before boost to get the pattern or should i jump right to the boost threads? ps: sry if i posted in the wrong section

Hello peeps, This is really getting annoying, Im trying to figure out how to check whether or not a member is in my datagrid. I have 5 columns: firstname, lastname, membership, accountid, date. Can someone help me out here????????

[CODE]//ASSIGNMENT NO- 4 //EMPLOYEE DATABASE #include<stdio.h> #include<conio.h> //STRUCTURE DEFINATION struct emp1 { int id; int dflag; char name[10]; float salary; }; int main() { //INITIALISATION struct emp1 e[20]={0,0,"\0",0.0}; int accept(struct emp1 [],int); int display(struct emp1 [],int); int append(struct emp1 [],int); int delete1(struct emp1 [],int,int); int modify(struct emp1 [],int,int); int no=0,v=0,u=0,ch=0,count=0; …

I tried using (*game_data.blocks), (game_data.*blocks), (game_data.blocks) but none of them work. I'm getting a error msg: 'cannot convert sprites* to sprite_data** in assignment' ----------------------------------------------------------- [CODE] typedef struct{ //sprite _sprites[]; sprite *blocks; sprite ball; sprite paddle; int numb_brick_sprites; }sprites; [/CODE] ----------populate_bricks procedure------------- [CODE] void populate_bricks(sprites &game_data){ game_data.numb_brick_sprites++; sprites *temp_ = (sprites*) …

Hello everyone here. I am new to vb.net database programming yet i want to create a point of sale software using it. So far I have created a local database, POSSdatabase.sdf , and I have 2 tables, Inventory and Transactions. My problem is how do I relate these 2 tables? …

I am attaching my complete code, which I was currently developing. I am not able to get why doesn't my KeyListener work. None of the KeyListener events are fires on pressing the keyboard. Please have a look and tell me the flaws in my code [ATTACH]22414[/ATTACH]

I'm trying to save data from textboxes in visual studio using vb.net to sql server 2008. the coonectiong is working perfectly but is not displaying the data output in data grid. This is the part of the code. [CODE] Imports Microsoft.VisualBasic Imports System.Collections.Generic Imports System.Data Imports System.Data.SqlClient Imports System.Text Dim …

I participated discussion about complex numbers and did some experiments in Python. I do not understand this behaviour (same behavious in 2.7.2 and 3.2.2): [CODE] >>> -(0+1j) (-0-1j) >>> -(0+1j)==-1j True >>> -(0+1j)+0 -1j >>> -(0+1j)-0 (-0-1j) >>>[/CODE] EDIT: Further investigation shows that there is -0.0 in Python, is this …

Hi, I'm a beginning C++ student and have an assignment to dynamically create an array of a struct to store students' first names, last names, and test grade scores, and then pass it via pointer to a function that will sort the grades and names in ascending order. I wrote …

I'm working on an assignment and now that I've finished I'm supossed to write a tester file to demonstrate how well the program works. While writing it I was just testing in a main file within the library itself. Now I'm getting an invalid pointer error when I try to …

Trying to read a list of numbers in from the arraylist, and stick em into a matrix of int[][] int[][] board; board = new int[row][col]; ArrayList<Integer> temp = new ArrayList<Integer>(); so those are my two variables, and i have a for loop with variables, i and j...so I am trying …

First off, I am a Java Noob coding in latest version of NetBeans. I am trying to create a program the will allow the user to enter two decimal values: time and earnings in a swing GUI. [B]Basic Flow[/B] [LIST=1] [*]The user will enter the values in two different text …

Hi, I am new to Unix/Linux... I have a TCSH shell script (on AIX4) in which, at a certain point, I want the user to be able to pass commands to the TCSH interpreter. What I do is I create the illusion that the user is at his usuall shell …

hi all m having problem deleting table row from button in jtable .here is my error when i press on delete button this code is similar to my original code . please i need immediate feedback m stuck in this error from days.this is the error [code]Exception in thread "AWT-EventQueue-0" …

In writing a logfile program, I need a function to output the log entries between two dates. I use [ICODE]seekg()[/ICODE] and [ICODE]tellg()[/ICODE] to save the position of the first entry to output and last entry and then go back later to output the data in between. However, [ICODE]seekg()[/ICODE] when told …

Ok how do I make a C++ console app format a floppy disk for a Win or Linux Computer? I really want it to be auto-matic like without the whole volume tilte, filesystem; that sutff. PS How would I setup virtual memory in linux? Thanks answer the floppy question first. …

every time i try to run my program (driver) is receive the following error message, arithmetic.pm did not return a true value at ./driver line 9, begin failed--compilation aborted at ./driver line 9 can anyone help me sort this out? thank you very much [CODE]#!/usr/bin/perl -w #Driver #program by James …

Hello everyone, i have a question for You. i have a script with grabs URL and etc. here is a [B]example[/B] of it: Sorry for very messy code... I'm just testing [CODE]while (a < 10) : if a == 2 : f = urllib.urlopen("****" % params1).read() linkai = re.compile('</a> - …

Hey, I have a set of types which are all arithmetic (have operators for addition, subtraction, multiplication, etc.). I want to aggregate any number of them into a single object, so I'm using the std::tuple class template and the <tuple> library (and Boost.Tuple for backward compatibility). My question is a …

[CODE] Public con As ADODB.Connection Public cmd As ADODB.Command Public dept_rs As ADODB.Recordset Public gen_rs As ADODB.Recordset Public stud_rs As ADODB.Recordset Public sql As String Private Sub cmdExit_Click() con.Close End End Sub Private Sub cmdSave_Click() With cmd .ActiveConnection = con .CommandText = "student_table" .CommandType = adCmdTable End With With stud_rs …

Hi guys, My intention is to find all possible words starting with any letter of my choice example 'p' from a paragraph.I want all the possible results . How can i do that . Take the example : 'This rule says that any match that begins earlier in the string …

Hello... I have form having a button and a gridview. The gridview is ok and generates data. But now, i want to populate only the data when i click on the button specified. Can anybody please help me with this ?? Here is my code : Private Sub button1_Click(ByVal sender …

Ok so i have trouble with looping with while and for statments heres the questions: 1. Write a program that gets a positive integer from the user and prints all the numbers from one to that integer. If the inputted number is zero or negative, then the program will print …

Hello, I have written a program for an assignment and all was working well, I tested everything and all that was left was to put in a few error-messages. Then, I changed the format from ISO to utf-8 and when I tried to run it again it suddenly stops at …

When I debug this method, I can clearly see that currentNode = Workstation, so I am puzzled as to why I'm still entering into the "Node" buffer print, rather than the "Workstation" buffer print. Shouldn't polymorphism handle this for me?: part of Node Class [code=java] public void printToBufferAsHTML(Network network, StringBuffer …

I am trying to login into the system I have created 3 pages 1.Registration Page 2.Login Page 3.Secure Page In registration page I can enter new username and password and that gets registered well that works fine..but when i try to login with that username and password I get an …

Hi, I am trying to a play a .wav file in a C++ program. I think my code is OK, but when it plays, it plays the default windows 'error' sound, not my .wav file. This is the program: [code] #include <iostream> #include <windows.h> #include <mmsystem.h> #pragma comment(lib,"Winmm.lib") using namespace …

I want to write an XML file in the following format [ICODE]<?xml version="1.0" encoding="utf-8" ?> <trans> <trans eng="string from listbox1" type="string from listbox2"/> <trans eng="string from listbox1" type="string from listbox2"/> <trans eng="string from listbox1" type="string from listbox2"/> <trans eng="string from listbox1" type="string from listbox2"/> <trans eng="string from listbox1" type="string from …

I am trying to do basic animations with images, and I am wondering how I could get a smaller image from a larger one without going through and editing it. I made a sprite [URL="http://translate.google.com/translate?hl=en&u=http%3A%2F%2Fwww.famitsu.com%2Ffreegame%2Ftool%2Fchibi%2Findex1.html"]here[/URL] and downloaded the image. As you see in the thumbnail the animation is from all …

Ok so while working on this I want to figure out at about line 23 for "hours" I understand the argument "NUMBER_OF_SECONDS_IN_AN_HOUR" but not "totalSeconds" is totalseconds the value coming from : "totalSeconds= GetNumberOfSeconds();" ? Which is the input received by the user? For lines 25-29 , how does totalSeconds …

I created a barcode and displayed it in a picture box and i want to print it. i can't figure how to do it..

Hi guys i working on a project that open an excel document using vb6 but i encounter this. Run-time error 1004 : C:\aaaaa\aaaa\myBook1.xls' could not be found. Check the spelling of the file name, and verify that the file location is correct. This is the Code: Private Sub Form_Click() Dim …

Hi guys, I'm having trouble with this particular code [code=c] #include <stdio.h> int main() { char aChar; printf("Please enter a character: "); scanf("%c",&aChar); while (aChar!='x') { printf("The Letter is %c\n", aChar); printf("Please Enter another character: "); scanf("%c", &aChar); } return 0; } [/code] The output is: Please enter a character: …

Guys.. I need help in my RPG game project.. I used visual basic 2008, windows form applications. I used panel and its background is the map, and I used picture box as the character and with transparent gif pictures in every keyevents, I already can move the picturebox with keyevents. …

hi frnds.... i am working on a window based student registration project using vs2008 and ms access database.what i have to do is to register students for main or comptt. exam according to the course they are in. The students are shown in a datagridview as per the course generated …

I am still having major trouble with my openGL model program. The big issue is that I cannot figure out how to debug it since I am saving the important data to the graphics chip using vertex buffer objects (VBOs) so at least as far as I can tell, I …

there are 2 common ways to loop through a vector 1: [CODE] vector<int> myvec; // let's assume it's initialized for(int i = 0; i != myvec.size( ); i++) { // code // access by 'myvec[i]' } [/CODE] 2: [CODE] vector<int> myvec; // let's assume it's initialized for(vector<int> :: iterator i …

Hey there, I am aware of GridLayout, BorderLayout and FlowLayout classes. However, I find them not to work satisfactorily well for me when trying to layout the entire content in a frame. What I usually do is this: I identify parts that I want in my window. For each part, …

/* can any 1 tell me wats the problem."[COLOR="Red"]Que: reverse an array without using temporary array[/COLOR] " [COLOR="Green"]This works for N =5 but when N =6 it displays the original values of an array.[/COLOR] */ [CODE]#include <stdio.h> #include <conio.h> #define N 6 void print(int b[N]) { int i; printf("\n"); for(i=0;i<N;i++) …

I'm trying to create a java applet that displays farhen and cels temperatures in a chart. Temps below freezing need to be displayed in blue, and about boiling displayed in red. It needs to use applet graphics to draw the strings in different colors but I'm fairly lost when it …

Alright So I want to know when looking at the code below: every so often with each method argument there is an "identifier" starting with the first one: "Inside() , Show(), Outside(), Display() " I know the names can be made up literally but what do the parenthesis signify ? …

Hello !! I am making a simple windows application. In one of the forms, I have buttons with various names and datagrid that displays the table. Now, what i would like to do is if I click on a button titled "softwares", i want only those elements from my table …

I am not sure why but this code (an attampt at a point and click game engine using Allegro 5) throws up an unhandled exception. The program starts and displays a picture, but as soon as the mouse is moved the exception pops up and the program crashes. I have …

In the following example: [code] public class JavaExample { public static void main(String[] args) { system.out.println(args[0]); } }[/code] when no parameter is passed Exception given is java.lang.ArrayIndexOutOfBoundExpection So my Question is that Why is that Exception is thrown , why not NullPointerException. (I know when both expection thrown) But in …

honestly i was new to C and i just need a codes for finding the mean for grouped data. i hope this site can least help me. you have my thanks.

Hi all, I am attempting to connect to a MS SQL Server Express Edition with Advanced Services (MS SQL10) on a remote Windows NT 5.2 machine on the LAN. My driver is [B]net.sourceforge.jtds.jdbc.Driver[/B] My url for the connection string is [B]jdbc:jtds:sqlserver://127.68.0.201:1433/LOD[/B] My user is [B]d[/B], password is [B]d[/B]. Now, when …

I am getting this message: value of type "System.data.datacolumn" cannot be converted to "System.windows.forms.datagridviewcolumn" when I am trying to add a column to the dgv [code=vb.net] Dim dtcCheck As New DataColumn("Select") dtcCheck.DataType = System.Type.GetType("System.Boolean") dtcCheck.DefaultValue = False Dim sa As New SqlDataAdapter("SELECT * FROM therapy", myconnection1) sa.Fill(ds, "Therapy") dgvther.DataSource = …

basically i have a header full of function prototypes(util.h) and a cpp file with the functions body [CODE] // util.h #include <ctime> uint32_t GetTime( ); uint32_t GetTicks( ); // util.cpp #include <util.h> uint32_t GetTime( ) { return GetTicks( ) / 1000; } uint32_t GetTicks( ) { return clock( ); } …

Hello guys, My question is not very direct and clear but i'll try to explain it nicely. I have a database running on MySQL with 1 important table which i need to use. Then I put this table into my C# application (I'm using Microsoft Visual Studio 2010). The only …

The Board Game I have in mind is Game of the Generals. It's somewhat similar to Stratego, but I'll just give a quick description of the game; every piece has a rank from Private all the way up to 5-star general, as well as a Spy and a Flag. The …