Software Development Forum

Hi, i'm using ms access and i have a table and a form which have the field code_url. I would like to know how can i create a form with a button that i could use to cut string in the field name code_url for example: <a href="yahoo.com?234234234sdef">Episode 1</a><br><embed src="videos/vplayer.swf …

Aside from access specifiers (private, public, protected), what differentiates structures and unions from classes in C++? I have been told that in C++, classes and their associated components are instantiated in memory in pretty much random order, but structs and unions are instantiated in a fixed order? Is this true? …

okay so I'm not sure how to do this, but suppose i have a struct that looks something like this: struct soundNode{ string identifier; sound new_sound; soundNode* next; soundNode* prev; }; sound is an object that is defined by a .h file. and in my main program, i have a …

I want to read file in binary mode using fread() into structure members. following is the code which works perfectly on Turbo C compiler(DOS base) but doesn't work for VC++ 6, it is giving exception at fread() statement. The input to this file we can give any .bmp file name …

Hello, I'm trying to use getch several times in my program, but it is remembering earlier key presses. Is there a function or command I can use to clear the getch buffer? Or am is there something else I am doing wrong? Thank you. C.

hai. I'm trying to compile a program split up across multiple files. The code is far from complete, but I noticed lots of compiler warnings and errors. This ought to be due to splitting the code up: I thought the preprocessor simply copy and pasted the code into main.c when …

Hi, I am debugging with gdb a huge program on HP-UX. It has a very strange behaviour and I could not identify the cause. Have a look at this for example: (gdb) c Continuing. Breakpoint 2, CExtract::extractDAT (this=0x80000001007bb9d8, user=@0x80000001004d4670) at Extract.cpp:1761 1761 meas.getSumMethodName ( sCol.meas_sum_method_name ); (gdb) p &meas $9 …

Hello, I have a question. I work in visual c++ in a document/view arhitecture (SDI application) and i draw some stuff with some opengl functions (cubes, cylinders) but when i hit the "New" menu from the File menu it doesn't erase or clear my drawing :( I don't know why. …

I am reading a file that is about 20 Mb, this will take about 10 seconds. A few lines from this file look like below. The first value is a date value that go from lower to higher and the second value after the "Comma" is a number. In the …

Hello. I'm having troubles with my JComboBox calculations. For example, if the strings in my JComboBox were String[] name = { "John", "Tom" }; And Tom was assigned 15% to his name. How can I have the cases in my action performed reach out to a calculation class to perform …

I have a Pong game with a level editor (as long as you have the source code) where you can put walls where you want. There are also walls that only balls hit by the player can pass through, walls that only balls hit by the Cpu can pass through, …

hey, is this code: [CODE=C++]if(m_velocity.x == 0) return 0; return ToDegrees(atan(m_velocity.y/m_velocity.x));[/CODE] any more efficient than this code: [CODE] if(m_velocity.x == 0) return 0; else return ToDegrees(atan(m_velocity.y/m_velocity.x));[/CODE] I.e., are we saving any time by omitting the else statement?

In Xp... I want to access start->run through programatically like when click start ->run-> //192.168.23.5 how i access this run through c???

Hello, Okay I'm stumped and can't figure out why this code chunk isn't working properly (works on square matrixs; everything else doesn't work).... uint8 * imageTranspose( uint8 *im ){ uint8 *im_transpose; int x, y, org_offset, tran_offset; int im_size = dims[0] * dims[1]; if ( (im_transpose = malloc(sizeof(uint16) * im_size)) == …

Hey guys, I've came across problem and wondering say if you have a 2 lists called user_list and pass_list and you have a prompt for username and password. Instead of 1 user name and password how could it be for all can be used at the same prompt? heres an …

If a person composes a short program and hit's F5 or "run" the output will fit on the viewers screen. I have composed a long program for homework purposes, and once I hit F5 or "run" I do not see the WHOLE program output. Only the bottom half. By hitting …

my string contain "hello baby" and i wanted to find the position of the character 'l' which falls in pos 2 and 3. Using string.find("l") return me the position of first "l" found. How can i do a loop to find the position of my next character 'l' in the …

How can i cut out every 4 characters from a text file? Example: my text file rows of binary numbers like: 101010101000010101010111 i wanted to cut out every 4 characters from it becomes: 1010 1010 1000 0101 .... .... ..... i have been bale to cut out the 4 characters …

I have a quick question that is been bugging me. [CODE]void swap(void *a, void *b) { void *tmp; tmp = a; a = b; b = tmp; }[/CODE] I wrote this intending it to be either able to swap a structure, or just the data defined within a structure. Will …

Hi, I just bought a hp laptop installed with Vista business and I hava installed in it Microsoft Visual C++ 6.0. Initially, I was able to write programs with it but it could not execute the programs. Now, I am even faced with a bigger problem, it cannot open a …

Newbie question; How do I cast a text file to an array, after the file is read using StreamReader? I have read many threads, code etc but I really need my hand held here, I just dont get it (especially using windows forms)...this is part of an assignment.... I've been …

what does the [B]<>[/B] mean in the following GWBASIC programm ? [ICODE]190 FOR C=2 TO N 200 LET I=C-1 210 WHILE I <> 0 220 IF ASN(I)>ASN(I+1) THEN SWAP ASN(I), ASN(I+1) : I=I-1 ELSE I=0 230 WEND 240 NEXT C [/ICODE] ITS BUBBLE SORT IN GWBASIC

Hey, I made i looked up toupper and made a little program out of it and have come to a little situation, When i enter the space character " " it does not output what i want and it just closes. [CODE=C++]#include <iostream> using namespace std; int main() { int …

Not certain if this is the right place to ask this. I need to get two processes to use the same data. Process 1 reads text files, parses them and creates linked lists (structures).before this process terminates it display all the lists to prove the data has been loaded correctly. …

Hi people. I was just wondering if I can use _LINE_( by including some header file or so) in devc++ to get the source code line number or _TIMESTAMP_ to get the compile time timestamp. If not is there an alternative? I see compile time errors when I use them …

I write code to get most frequent words in the file I won't to implement bigram probability by modifying the code to do the following: How can I get every Token (word) and PreviousToken(Previous word) and frequency and probability From text file and put each one in cell in table …

Hi Guys i want to implement iir filter in assembly in c64x processor. preferably fixed point algorithm. Here is the c code of iir filter which i have written. [code=c] #include<stdio.h> void main() { float ip1_seq[10]={1,1,1,1}; float b[10]={0.049,0.074,0.105,0.074,0.049},a[10]={-1.715,1.726,-0.85,0.195}; int len_ip=4,al=5,bl=5; int n,k,i,len_seq=0; float op_seq[10]={0},op1_seq[10]={0},op2_seq[10]={0}; len_seq=al; if(al!=bl) len_seq=(al<bl)?bl:al; if(len_seq!=len_ip) len_seq=(len_seq<len_ip)?len_ip:len_seq; for(i=len_ip;i<len_seq;i++)//padding …

Good day to all. I have an existing vb project and my back end is ms access. I changed my database to MySQL and SQL but the problem is I don't have any idea how to connect my VB project to MySQL and SQL throuch ODBC. Your help is very …

Hi, I'm trying to update a file with an information in a binary tree. However my algorithm is working only for one NODE. Any suggestion will be appreciated! [CODE]void Arbol::updateFile() { Nodeptr p = miArbol; // myTree Recorrer(p); cout << "File updated!" << endl; cout << endl; } void Arbol::Recorrer(Nodeptr …

Hi, I wish to delete the first 3 lines from a file. Following is my code which goes into an infifnte loop. [code=cplusplus] int main() { vector<string> text_file; fstream fout; int count = 1; fout.open("tempfile.txt"); assert(!fout.fail()); string temp; while(!fout.eof()) { if(count <= 3) { getline(fout,temp); count++; } if(count > 3) …

i got my code to finally compile but, now im getting 5 linker errors that i have no idea why im throwing them the errors are: [code=cpp] football.obj : error LNK2019: unresolved external symbol "public: void __thiscall Football::SearchMatches(struct Match * * const,int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,int)" (?SearchMatches@Football@@QAEXQAPAUMatch@@HV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@H@Z) referenced in function …

I'm new to Swing, and still relatively new to Java as a whole, and am having trouble with my first Swing program. I'm trying to make a simple Pong game - it will display the title screen with a "Play" button on it that when pressed starts the game. Here …

hi guyzz, i wanted to have two connection using access and mysql in my proj. my access was my main db connection and what ever data in my access will store directly in mysql db when their is internet connection... I declared 2 fuction connection but my problem is the …

So basically i got to make program where you can add rows, inside those rows numbers and count in each row and all rows pair number sum. This far im done and everything is working. Now part which don't want work. I need make option to make rows longer or …

I try the foll. code--- protected void Button1_Click(object sender, EventArgs e) { int i; for (i = 0; i <= ListBox1.Items.Count - 1; i++) { ListBox1.Items.Remove(ListBox1.SelectedValue.ToString()); } } But it's not working.

Hi All, Quick question... I have a structure for a specific type of vector: struct SParticle { float Position; float Velocity; float FcnVal; float LocalBest; float LocalBestVal; } But now I need to define 30 objects for this structure. Is there an easy way for doing this or should I …

Hey everyone. I've been working on a homework assignment to simulate a weather station responsible for recording hourly temps and reporting an average temp. I'm supposed to be passing an array to different functions to first get the temps and input them into the array. Then, compute the average temp …

I am working on porting C++ code to Delphi and I am only having a problem with the correct conversion of memmove() statements in the C++ code. If you or any one you know could help me to convert this C++ code to Delphi I would be thankful. // Move …

Write a C++ program that prints the attendance sheet of students in a class ordered by either their names or by their ID’s. The instructor will enter the number of students in the class; the students’ names [First Last] and their ID’s which will be entered as integers, and then …

Hi, This is my first post in this forum and it is a 'help me' post :) Anyway, I took a beginners class in C Programming and at the completion of the class we were assigned to do a project. The project is designing a billing system for a supermarket. …

Given all that I hear about the problems with global variables, is it possible to declare a windows CRITICAL_SECTION object as a member of a base class that will not be created for each derived class? I want to implement an instance counter that is threadsafe, so I thought about …

[code]#include<stdio.h> #include<conio.h> #define MAX_ROWS 10 #define MAX_COLS 10 void add(int a[][MAX_COLS], int b[][MAX_COLS], int result[][MAX_COLS]); void displayValues(int(*)[MAX_COLS]); void diff(int a[][MAX_COLS], int b[][MAX_COLS], int result[][MAX_COLS]); void main() { int val; int i,j; int choice; int cols,rows; int operation; int table1[MAX_ROWS][MAX_COLS]; int table2[MAX_ROWS][MAX_COLS]; int result[MAX_ROWS][MAX_COLS]; clrscr(); printf("Press 1 to enter values for …

[code=cplusplus] //I have a problem, i trying to get the total prime numbers for each row on the output. //I jus getting the total prime numbers from the firs line 1 to 100 // my task is to get the total prime number from 1 to 100, 1001 to 2000.....49001 …

hi i am trying to make a function for calculating the commercial boat fee, so if a boat is commercial, the program will add additional fee to the total sum, and if its not it won't add anything to it. i got the function to run, but all i am …

Hey everyone, I'm trying to make a C++ program that inputs data into a web page. For example make a program that takes an input and enters it on the google search box and presses the enter button for you! Can anyone help me? Any codes or ideas where to …

well my struct is fix but i have new errors i hve never seen before : here are the errors [code=cpp] football.cpp(194) : error C2664: 'void Football::SearchMatches(Match *,int,std::string)' : cannot convert parameter 1 from 'Match *[2000]' to 'Match *' football.cpp(205) : error C2664: 'void Football::SearchMatches(Match *,int,std::string,int)' : cannot convert parameter …

I'm trying to work out what should be a simple composition example. For some reason I can't compile this project though. I get three errors when I try to compile. Errors listed below. Where am I going wrong? 1>c:\documents and settings\user\my documents\visual studio 2008\projects\name\name\ssn.h(5) : error C2011: 'SSN' : 'class' …

input three numbers and display largest one

I am readin a .txt file Line for Line and what I am interested to do is to identify that if the Line do contains any characters as Letters, text, symbols. Exceptions is things like: '\n' ' ' etc... so "" wont be possible here ? So I am trying …

hi i have aproblem i have atable in database and the table has three colums branch_no branch_nnnno distance 1 2 5 1 3 7 2 1 5 2 4 10 3 5 15 4 5 5 i need aprogram by vb.net that find the shortest path between any two nodesw