Software Development Forum

I want to know how a read/write calls is accomplished in linux? I mean how a function say read() will read the data from a file. What all will be the steps from user mode read() function call to kernel mode? Will anybody explain the steps or let me know …

Hiii... I want to know how to open two windows forms at a time... when i give as Application::Run(gcnew Form1() ); Application::Run(gcnew Form2() ); Then, the Form2 will open when first one closes,... So any one please help any other way is their so that , i can open two …

Hi everybody! I'm facing a really tricky problem in python. I am using the pyserial package to communicate with an external serial interface board. The board accepts certain hexadecimal strings as commands in the following form : --example-- command1 : "\x02\xa1" command2 : "\x03\xa2\xb5" etc... Some of the commands are …

Hello, when I give fprintf the character 0x0A, then it prints out 0x0D and 0x0A (which is \n in Windows). How can I print only 0x0A? I need to print a picture into a file containing 16-bit pixels, (and some bytes contain the value of 0x0A,) so it is very …

Hi everyone I m openning this theat because I want to see if any of you can help me... well lets see ... I got my full time back at work (after 2 years :o ) and Im worry about college because I do not have enough time to complete …

I use: Visual studio 8.0 MySql database One table: table :Groups, two fields : groupnb,groupdef One Datagridview with is link to [COLOR="Red"]Mydataset1[/COLOR] [COLOR="Red"]Some times [/COLOR]a get this MySQL error: [COLOR="red"]"Connection must be valid and open"[/COLOR] I use first this command : [COLOR="Green"]MyDataset1.Tables("groups").Rows.InsertAt(row, 0)[/COLOR] Then I change the content of some …

Hi Team, Problem Description: Well i have a script with me(attached) which monitors the response time of each file and sends mail according to its severity As i am very new to this script it involves mix of korn shell plus html. Request your guidance on the same. Requirement: Presently …

Hey guys, i am working on a project which basically takes a string which is being inputted by people and then adding it together and displaying in a certain format. What i am having problem is when i try to read the string and store it into the functions. [CODE]class …

I am having trouble compiling this program. If somebody could take a look and see if my code is sound or not i would much appreciate it. I am worried that my logic and commands might be flawed, if someone could help me out I would much appreciate it. I …

Write a assembly language program To add two 8-bit data using registers To find the largest of 3 numbers

I need to somehow open and read a picture of a map (jpg/png/bmp) into a 2d array so I can use the array to determine what terrain type is at that element/position on the map. Looking for tut's on working with picture files (jpg/png/bmp) with c++ I have found none. …

after i input the three letter, i cant get the number back.. [CODE]#include <iostream> using namespace std; class Month{ public: int month; Month(char& one, char& two, char& three); Month(int& numb); Month(); void input1(istream& input); void input2(istream& input); void output1(ostream& output); void output2(ostream& output); }; int main (){ char x,y,z; int …

hi, I would like to know how to program a PIC16F877 microcontroller. I am using this microcontroller with a LCD so I would like to send data to the LCD. I have connected my microcontroller to a Bluetooth module which is connected to my PC via Bluetooth dongle so I …

Hi, I want to access a link starting with clients_test on a particular webpage. I have the following code client_re = re.compile(r"clients_test") def get_client_url(): url = get_artifacts_url() for link in get_links(url): if client_re.search(link["href"]): return "http://11.12.13.27:8080" + link["href"] Sometimes the page has many links beginnng with clients_test for e.g: clients_test4, clients_test5, …

I am writing a program to print filenames in the current directory and print the time stamps next to them. I am loading the names into an array and then passing them to a function to print the stat and filenames. Here is the code. [CODE]#include <stdio.h> /* For printf, …

Hi, I need help getting the basic idea of how to begin writing this Strings program: file has last name(1word) & email address objective of prgm is to validate email address [LIST] [*]1 "@" symbol; no space left of it [*]1 "."; no space on both sides of it [/LIST] …

I am trying to get a small piece of a program i am writing to receive a simple math expression, with two int variables and 1 char for the operator, and then i will work it with an if(){}if else statement. I just don't know how to separate the string …

Private Sub Average_Click() Dim Test1 As Integer Dim Test2 As Integer Dim Test3 As Integer Dim Test4 As Integer Dim Test5 As Integer Dim Test6 As Integer Dim Average As String Test1 = txtTest1.Text Test2 = txtTest2.Text Test3 = txtTest3.Text Test4 = txtTest4.Text Test5 = txtTest5.Text Test6 = txtTest6.Text Average …

Hey guys i have taken part in a programmers elite competition and in a group you are assigned different programs to build. i have VB and C++ .... im really good with C++ but i have never touched VB !! now i have a project to build ... so can …

I have a reqirement in my project. I need to capture the image in webcam and then compare every 4rth frame and see if there is a change in image and if there is a change i need to able to mark the area and send an alert to user …

Hi all, Has anyone used PFDBox before? I'm having trouble with makeing a pdf with mulitple lines: [CODE]contentStream.drawString( patient.toString() );[/CODE] patient.toString() has newline characters in it(\n) and drawString dosn't recognize them.

I am working on a Setup program which creates a .msi file. There is a CustomAction program associated with it which is written in C#. There are three COM object references made in this CustomAction program which are necessary in order for it to work. They are as follows. 1. …

Hey guys, how would i create a random number to decide whether it should enqueue the customer or not. thank you.

has it been officially canned?

Hi, I'm trying to figure out how classes work. I currently am working on getting a class to read a string and then place it into an array, as well as have the class then output the entire array. I wrote the following code to make sure i could get …

I am trying to learn about recursives and found this code on the internet. It works, but am not sure why. Could some one explain to me why this works. I have posted comments by the function to explain what I do not understand. [CODE] #include <iostream> using namespace std; …

Hey guys i have this program and i want you to tell me what is wrong cuz i can't figure it out !! This is what i have to do: (the code follows) When the form is loaded, read the records in P3S3 Data File For Import.txt to a listbox …

Hello! Suppose I'm using an external API, and in that API, they define: const Bar& Foo() const; So this function returns a Bar by reference. Now, I have a function void f() { Bar P = Foo(); } Is it safe to const_cast whatever is returned by Foo? I want …

I'm doing a homework assignment about constructors and this is really bothering me. I keep getting the error "constructors are not allowed a return type". I HAVE put a semicolon after the class declaration. I'll post my code here. [CODE]// Joseph Yong // CSC2430 // Homework_6 //Header File /*--------------------------------------------------------------------------*/ #include …

Hey everybody, i wanna use the array "intArray" in the class eightPuzzleAStarDemo() as initial state but i get a cannot use it. Does anybody has a hint for me? Is it because it is not in the same package? Thank you [CODE] package aaa.mayerp.projectone; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; …

Ok this will be a easy to make game for pros but for new users it will improve your understanding of c#. Ok start my setting up your GUI(Generall User Interface) by selecting a trackerbar, 2 buttons, a label and a trackerbar. Place the trackerbar at the top of your …

SO basically what im trying to do is take an input number of any base and convert that number to any base(allowable bases 2,4,8,10,16). I am trying to think how i am supposed to go about coding it, wondering if anyone can point me into the right direction. Thanks

hi i'm currently making a program relating to money and i need my c++ to read one of my excel files which has all the prices etc in it how do i make it work? =/

[code] 842 M C 20.00 15 2 250 10.00 UC RosebudTheatre 90 One Mike Stand 990 E C 20.00 19 2 1250 10.00 TX TexasHall 75 Maverick Speaker Series554 C N 16.45 30 1 35 0.00 UC PaloDuraLounge 60 Global Grounds Coffee Hour 318 E C 18.00 3 4 350 …

Hello everyone, I have work to do on a basic assignment that requires an ATM type of program working over XMLRPC so there is a server element where the data is held in a Hashtable and retrieved by a client form. I will state I am completely lost in the …

[B]Modified mostly from dileepkumar235's [URL="http://www.daniweb.com/code/snippet217246.html"]Login functionality in C-language[/URL] [/B] Inspiration from Narue and my previous post ([URL="http://www.daniweb.com/forums/thread249149.html"]Limit buffer Input[/URL] ) This allows you to prevents the user from entering past the array limit (SizeOfArray) if the user enters more the curser will just automatically backspace by 1 for eg (max …

Hi I am using borland C++ Builder 6.0 and I would like to include finger print technology in my program. I want to store finger print images in the paradox 7 database. I would like to log on into the program using the fingerprint. I have a UrU 4000B finger …

So i've found an example of how to use Semaphore and made my code into there for Readers-Writers problem. What it must do, that it has 1 book, only 1 writer can write a new line there and while he is writing, no1 else can access it. When writing is …

I am trying to read all the files in a folder and for some reason it keeps reading only 1 file over and over again... [CODE]private void openFile() throws IOException { status.setText("Adding Photos"); File file; JFileChooser fileChoose = new JFileChooser(new File("charlie/photo/")); int success = fileChoose.showOpenDialog(this); if (success == JFileChooser.APPROVE_OPTION) { …

ok so im trying to get my line of text file working with my file input. the Last part of my text file has a name of an event with spaces which I want to include those spaces so I needed a getline. apparently for some reason my getline function …

How can you get a JList to simple display a one word string. I know the method of JList.setListData(Object[]); I have an object[], but it is multiple lines of information and it looks weird in the list display. How can I get an Object[] to simply display the first line …

Hi. I'm a Java programmer making the switch to C++. Could someone enlighten me as to what's going wrong here: [B]g++ -o fermat.cc main.cc[/B] main.cc: In function `int main()': main.cc:8: error: `Fermat' was not declared in this scope main.cc:8: error: `f' was not declared in this scope main.cc:8: error: `Fermat' …

[CODE]for (i = 0;i < e;i++) { // take the excuse scanf(" %[^\n]", excuses[i]); excuse_count[i] = 0; while (sscanf(excuses[i], " %[a-zA-z]", word) != EOF) } [/CODE] The input was My dog ate my homework but at the while loop word is getting the word "My" in each loop. In case …

Hi need some help to separate my string. I'm reading my text from file. The format is "name,1,2,3" What i need to do is to seperate out the entire string to: String name = "name"; String one = "1"; String two = "2"; String three = "3"; The commas are …

so i have a project due in my computer programming class and i need some serious help. we are learning about recursive sorting, such as merge sort, selection sort, etc. my project has to do with taking 10 people and sorting them in order by their names (alpabetically), rank (numerically), …

paths = [ "nodeA1", "nodeA1/nodeB1/nodeC1", "nodeA1/nodeB1/nodeC1/nodeD1/nodeE1", "nodeA1/nodeB1/nodeC2", "nodeA1/nodeB2/nodeC2", "nodeA3/nodeB2/nodeC3" ] you have list of strings there. how can i create a tree by system.out.println from all those paths. nodea1 ----nodeb1 -----------nodec1 -------------------noded1 ------------------------------nodee1 -----------nodec2 -----nodeb2 -----------nodec2 nodea3 -------nodeb2 ------------nodec3

Friends, I am stuck here , I am downloading some files from a url uing GZIPInputStream.I need to store this files.So i declared a bytearray with specified length.As i am downloading files with different size, i think i need to declare a dynamic byte array. Please help me to solve …

Hi, How do these relate and differ? I see them Used with queries but cannot understand. I'm just starting JDBC. Sorry if it is noobish ;)

How would you fill a 2d vector with NULL. I've tried doing [CODE]vector<vector<int> > data; data (10, vector<int> (10,NULL))[/CODE] But I get an error, and I've also tried setting it to NULL through two for loops and that produces an error as well. Can someone point out what I'm doing …

Hi all, am writing a programming for my assignment. Got stuck in my codes for a small portion. Currently i have trying to extract all the alphabets within a string and cover them to an ascII. For example: I have a string "1a2b3c" What i need to do is to …