Software Development Forum

i gave the copy constructor in the below code just to know when will it be called.. [CODE] #include<iostream> using namespace std; class counter { int val; public: ~counter() { cout<<"destructor"<<endl; } counter(counter&) { cout<<"copy constructor called"<<endl; } counter():val(0) {} counter& operator++() { ++val; *this; } int getval() { return …

Hello , i was doing an exercise in book which asked to draw a diamond shape by displaying '*' using nested for loops. It took me quite a while to come up with a way to reverse the pyramid , and complete this exercise. So i was hoping some one …

Hello all. I've had many problems solved for me by daniweb users without ever even joining. Now, though, I've run into a problem that I can't seem to solve. It feels like a very stupid problem that will probably have an easy answer, but alas I have not found it …

Hi, I'm very new to C++ and am trying to write a class to model affine transformations. I have written code for a 3x3 matrix and am now trying to write code for multiplying it by (x,y,z) where z=1. My problem is I can't return the two values for the …

hi. im doing an edge detection which will detect edges of each RGB channel and then combine them to show it as a final output. im now having a problem with combining the three as it doesnt show me a binary image, instead it has some colors on it. i …

hi.. I don't know why the circle doesn't move .. [CODE]import java.awt.*; import java.awt.event.*; import javax.swing.*; public class MouseGameV2 extends JFrame implements MouseMotionListener { CircleClass a[]; Graphics gx; int m = 5; Thread move1; //---------------------// JPanel p1 = new JPanel(); JPanel p2 = new JPanel(); JPanel p3 = new JPanel(); …

Hello, Iam trying to get a table from the html page.I succeeded in getting the table values.But i have problem in getting the field names in the 1st column. [CODE]# Getting the field names.How to strip the 'b' and get only the names paramKey = table.findAll('b') print paramKey[/CODE] The above …

Hi, I have loaded a image in a picture box and also i zoomed in without any issue. when i zoom the picture box by keeping scroll bar at the top on issue found. But when i zoom the picture box by keeping the scroll bar at bottom Or at …

Hello everyone. I'm just about finished with my degree and am now taking a Data Structures class. So far, it doesn't make sense to me. I'm seeing code snippets of 100+ lines that I could solve in 10. Hopefully I begin the realize the power of Data Structures soon. Anyways, …

Hey This might sound like a dumb question but I simply dont know how to do it. Not only that but for some reason I do not know, my professor refuses to teach me how to use debugging and watch variables. He wants the "change, try, and test" method.... I …

Hi, I'm trying to build an windows application in C#, where i will be using Cache Application Block. I have downloaded the Microsoft's Enterprise Library (5.0), & also tried a sample too.. The sample works fine but there is a catch. I'm not willing to use a configuration file in …

Regarding my earlier post. [URL="http://www.daniweb.com/forums/thread327097.html"]http://www.daniweb.com/forums/thread327097.html[/URL] I encounter an error saying [ICODE] Run-time error '462': The remote server machine does not exist or is unavailable [/ICODE] Haven't notice this error earlier. Code: [CODE] wrdApp.Documents.Open App.Path & "\Reports\Locatorslip.docx" wrdApp.WindowState = wdWindowStateMaximize wrdApp.Visible = True [/CODE] The code works fine. Error only appears …

Hi, I was programming with POSIX threads and I was using semaphores. All of a sudden the program didn't work anymore, and I started searching for the problem. It turns out that my first semaphore command "sem_open()" causes the problem. It returns value "0", or "SEM_FAILED", and sets errno to …

I am kind of new to wpf and I searched all over google and couldnt find specific answer to this, but if i have missed it sorry :). Anyway I want to extend the textbox control in wpf and use it in winforms. so basically i did inherit from TextBox …

I'm working on a project in vb.net 2010 that has 3 RichTextBoxes. Two of the RichTextBoxes can be loaded with text from text files. How do I take the multiple lines of text from each RichTextBox and combine them into the 3rd RichTextBox. For example, if 2 of the RichTextBoxes …

Hi I want to generate sequence number in C# window application I have got one link on Google, but I it is not helpful. I want that on click to add button an order sequence number should generate and stored in SQL Database i have written this code but it …

Hey guys, I've been lurking around these forums for a few weeks now, and this website is by far the most helpful of any site I've visited as far as honing my newfound Python skills, and I figured it's time I jump in and ask some of the more specific …

Hi Folks, I have written a read function which reads values from serial port(LINUX) . It returns values as pointer to char . I am calling this function in another function and storing it again in a variable as pointer to char . I occasionally got stack over flow problem …

This is the code I have to validate control number that we use to keep track of our inventory. However, I dont know much about Access so I have written and tested this function in VB.Net on Visual Studio. Now, I need to convert my code so it work in …

Dear Experts, I am working on a TCP/IP project but my problem is that whenever my programme trying to reconnect again to server then server giving message port number is different. i.e. every time my programme is run its port no showing different in server so kindly guide how can …

Can anybody tell me why I keep getting this error? [CODE]Asig02_Attempt2.java:37: <identifier> expected public void sincronizarCanal(canal)[/CODE] Am I mixing a [I]class [/I]with a [I]method[/I]? This is just a small program that simulates a TV. I'm trying to pass a number (chanel) to a method that tells the user that they …

Ihave been working on database but Though iam able to create But Cannot Write in data base.. [CODE] Dim ADOXcatalog As New ADOX.Catalog Dim ADOXtable As New ADOX.Table Dim ADOXindex As New ADOX.Index On Error GoTo errhandler ADOXcatalog.Create("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & "c:\info.mdb") On Error Resume Next ADOXcatalog.ActiveConnection = _ "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" …

Hello! Is there Any way to Attach Files ... Like A button on form Which When Clicked open a dialog to select Word Files from computer then it Uploads to the Server or Attach it to Database so that It can be viewd after form fill up Is completed!...

Hi, I am using vb6 to manipulate my word 2003 template .dot and save it into .doc. My current method is: I am creating I word class, called W. then I use: W.activedocument.SaveAs "documentname.doc", 0, 0, "". 1, "", 0, 0, 0, 0, 0 It can be used perfectly for …

For some reason, and it's probably one of those accessibility things like tab ordering, when I hit the spacebar after selecting a button on my form, the spacebar clicks the button. This is NOT acceptable, and I have considered a work around of selecting an invisible panel or other "dummy" …

Can anyone perhaps help me with my problem please? I want to apply security to my winform application but I am stuck.. This is the code I have that will run when the view job button is clicked and I it doesn't work [CODE] private void viewJobBtn_Click(object sender, EventArgs e) …

hi frds, i have create a .txt file and write some data. i want to open on screen that .txt file for reading by a click a button. if you have the answer, so please help me. thanks in advance ....

I have a Crystal Report that shows images using a SQL Database with the image paths When viewing the images in a report everything is fine untill you get to a page in the report when the error pops up [B](Request could not be submitted for background processing)[/B]. The image …

Hi all, I am trying to write a program that computes the areas of intersecting rectangles. The coordinates of the rectangles are given. A rectangle may intersect another one or just stand alone. My code is: [CODE]Rectangle class: #include "Rectangle.h" Rectangle::Rectangle(){ this->parent=this; this->area=0; this->x1=0; this->x2=0; this->y1=0; this->y2=0; this->visited=false; }[/CODE] [CODE]/* …

I want to implement gabor filter in java. I got gabor filter code in Matlab. i tried to convert it into java but it had some mistakes. pls check the code and fix the errors. i post both the matlab code (which i got) and java code which i had …

Hi people, I'm trying to make a program that reads and counts words and their frequency. After a few days trying I just make the program read a text, counts the words and everything BUT just if there's no more than one ' ' space character at a time. And …

Hi, in my project I need to allow the user (admin user) to have the ability to run custom queries on the database. Ive done this pretty simply whwer the user enters their query and the reults are set to a datagridview. It would also be great however to allow …

I have this code which sorts any given number to ascending order, but I'm having difficulties figuring out how to sort the numbers given into a descending order. Code: [CODE] import javax.swing.*; import java.util.Arrays; public class sort7 { public static void main(int[]array) //public static void main(String[]args) { String str1=""; String …

Hey guys...Need some help with a program for class...here's the assignment If your program detects an error condition, you can make it raise an exception. Here is an example that gets input from the user and checks for the value 17. Assuming that 17 is not valid input for some …

I can't get my pointers in assembly to work, I'm using nasm and trying to use pointers in real mode with 16-bit registers. Here is my code: [CODE] mov di, Pointer mov ah, 0x0e mov al, [di] int 0x10 Pointer: db "W" [/CODE] This code should print out the character …

Hello. Sorry if you find this not interesting. My project is to create a cash register for a cafe. It has the features like in the pic. It also has a record sales staff can see in datagrid view. The table can be filtered to find specific item. It also …

I'm getting the following error when trying to write to a file: 1>Linking... 1>mit_lesson1.obj : error LNK2019: unresolved external symbol "int __cdecl do_stuff(int,int,int,int)" (?do_stuff@@YAHHHHH@Z) referenced in function _main 1>C:\Users\Michael\Documents\Visual Studio 2008\Projects\MIT\Debug\MIT.exe : fatal error LNK1120: 1 unresolved externals 1>Build log was saved at "file://c:\Users\Michael\Documents\Visual Studio 2008\Projects\MIT\MIT\Debug\BuildLog.htm" 1>MIT - 2 error(s), …

[CODE] #include "SQL.h" const char * pQuery(const char * query,...) { va_list argptr; va_start( argptr, query); char buf[4096] = ""; sprintf(buf,""); int ret = vsprintf(buf + strlen(buf), query, argptr); strcpy(buf + strlen(buf), ""); va_end( argptr ); return buf; } [/CODE] [CODE] MYSQL * mysql; int main() { //loading the config …

Hi, I want to sort a TStringList but not by the strings in it, but by the Objects. Here's my code: [CODE]var i : integer; iCount : integer; idxFound : integer; someText : string; s : TStringList; oneWord : string; aux : integer; begin someText := memo_txtfile.text; oneWord := ''; …

I've got myself in a real state with a simple assignment. I'm very very new to this and just when I thought I had got there of course I hadn't. I've been told that I need to allow the user to restart through every step in this ordering process. I …

Good day everyone! I have a problem with the filtering part of my application. I am already using this code; Tablebindingsource.filter = "Prereq Like '" & textbox.text & "%'" it searches for values from Table whose Prereq value = textbox.text. My concern is, how about if there are several items …

Just Started C in University, first time doing it and the first program i had to write was one that required someone to be able to enter 5 random numbers and get the average of the 5 numbers, the highest/lowest of the 5 numbers and then finally the standard deviation …

Hi guys I really need your help. Im developing a C# app thats going to be home to a few plugins. So Im writing the first dll and already in trouble (don't do much c# mainly c++). anyways so far i have a class within my dll that takes a …

I want to count the number of lines that are inputed in my program but I don't know how. Can someone please help me. Here's my code: [CODE]import java.util.*; import java.lang.*; import java.io.*; public class Exer6 { public static void main(String args[]) { String[] dummy1, dummy2, dummy3, dummy4, dummy5; String[] …

hey guys and girls i am having a bit of a problem with my code [CODE] import os,string,sys,pprint,time,glob from datetime import datetime, timedelta fileList = os.walk('.')#if i use glob.glob it does not show any files now = datetime.now() TWA = now + timedelta(days=-1) #print(TWA) files=str() for files in fileList: fileStats …

I want to compute md5 hash from a MimeMessage type.I use the following code to do this: [CODE] //MD5 private static String convertToHex(byte[] data) { StringBuilder buf = new StringBuilder(); for (int i = 0; i < data.length; i++) { int halfbyte = (data[i] >>> 4) & 0x0F; int two_halfs …

[code] void databaseUpdate() { conString = "Data Source=(local);Initial Catalog=Northwind;Integrated Security=True"; con = new SqlConnection(conString); con.Open(); string quryString = " select * from Employees"; da = new SqlDataAdapter(quryString, con); ds = new DataSet(); da.Fill(ds, "Emp"); //dataGridView1.DataSource = ds.Tables["Emp"]; dataGridView1.Columns.Add("EmpID", "ID"); dataGridView1.Columns.Add("FirstName", "FirstName"); dataGridView1.Columns.Add("LastName", "LastName"); int row = ds.Tables["Emp"].Rows.Count - 1; for …

I hava a prooject that uses ShellExecuteInfo and it works fine as log as you don't want to change the name of the file. [CODE] SHELLEXECUTEINFO fei; fei.cbSize=sizeof(SHELLEXECUTEINFO); fei.fMask=SEE_MASK_NOCLOSEPROCESS; fei.hwnd=GetDesktopWindow(); fei.lpVerb="Open"; fei.lpFile="C:\\Program Files\\WinZip\\wzzip.exe"; fei.lpParameters="-a+ -r -P -whs -x@nobackup.txt C:\\Progra~1\\DIR\\DIR\\Data\\ful.zip @backup.txt"; fei.lpDirectory="C:\\Program Files\\Patches\\GLB\0"; fei.nShow=SW_HIDE; fei.hProcess; [/CODE] I would like to be …

[CODE]Validating against schema: Employee.xsd Error: Element 'Phone': The attribute 'Type' is not allowed. on line 9 Line 1 <?xml version="1.0"?> 2 <?xml-stylesheet href="http://courses.oreillyschool.com/introxml/xsl/PhoneBook.xsl" type="text/xsl"?> 3 <!DOCTYPE Employees> 4 <Employees xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="Employee.xsd"> 5 <Employee> 6 <First>John</First> 7 <Last>Smith</Last> 8 <Phone Type="Home">1-800-123-4567</Phone> 9 <Birthday>1960-05-25</Birthday> 10 <HourlyRate>35.85</HourlyRate> 11 </Employee> 12 </Employees> 13 [/CODE] …

i am typing below code in each and every date text box keypress event to allow numbers and back slash keys only. can any function or subroutine be created to avoide typing same code again and again in the project. [CODE]Private Sub Text1_KeyPress(KeyAscii As Integer) Dim ch As String ch …