51,593 Topics
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| | just have those questions about those code sinppets from the C++ GUI Programming with Qt 4 book: GoToCellDialog::GoToCellDialog(QWidget *parent):QDialog(parent) Does that mean we are inheriting QDialog(parent)? Or, what exactly does this mean? setupUi(this); Here, this code snippet is part of the gotocelldialog.cpp file, which is the implementation of gotocelldialog.h header …  |
| | Hi I am trying to convert the outbuff from WinHttpQueryHeaders to string but its not working properly... my code [CODE] if( GetLastError( ) == ERROR_INSUFFICIENT_BUFFER ) { lpOutBuffer = new WCHAR[dwSize/sizeof(WCHAR)]; // Now, use WinHttpQueryHeaders to retrieve the header. bResults = WinHttpQueryHeaders( hRequest, WINHTTP_QUERY_RAW_HEADERS_CRLF, WINHTTP_HEADER_NAME_BY_INDEX, lpOutBuffer, &dwSize, WINHTTP_NO_HEADER_INDEX); } } … |
| | I'm trying to learn how to sort arrays. I tried to learn select sort, but I couldn't code it right... so I tried the easiest, bubble sorting and kind of got the hang of it! But with a few problems and questions. I'm trying to print an array with random … |
| | hi.. everyone.. i wanted to ask can i actually combine c basic code in the c++ coding?  |
| | So here is my problem, my friend and I are writing a simple project for a electrical eng. teacher, who really doesn't know too much about programming c++. We were assigned to make a successive approximation ADC [URL="http://en.wikipedia.org/wiki/Successive_approximation_ADC"]Look here[/URL] in any coding language possible. I would have liked to make … |
| | Hey everyone, I have to manipulate two functions RECURSIVELY, strlen and strcpy. I was able to code the strlen: [CODE]int length(char* str){ if(str == NULL){ return 0; }else{ return length(str, 0); } } int length(char* str, int l){ int len=0; if(str[l]){ len = length(str,l+1); } else { return l; } … |
| | hi, i doing a project to send MMS using PIC16F876.. how to define the pic16f876 in c++? thank in advance. |
| | Hello, I am trying to compute the log transformation of an image(very easy... I know). But I am not getting the right result and I really don't know what I am doing wrong. I know the image provided is in the range of 0 and 1.5x10^6. But when I save …  |
| | Hi all, I wasn't sure where to post this, so I thought here might be best :D I have to develop a program that takes a webpage and extracts information from it, so I was wander how would be the best way to do this, without using an external library(like … |
| | Write a program to maintain a list of some of your friends with their phone numbers. The program should reserve enough elements for 20 friends, and then present the user with an input screen to enter a friend name. The program then searches about the name in the previously existing … |
| | Hello folks,i am teaching myself qt and i have run into a problem.In my data entry application,i want to bind my forms to my grid explained in this picture: [URL=http://imgur.com/KeNTI][IMG]http://i.imgur.com/KeNTI.png[/IMG][/URL] Right now,i am scratching my head plotting on how i am gonna accomplish this. Ideas are welcome. |
| | [CODE]// erase.cpp - Script 4.1 // We need the iostream file in order // to use cout and cin. #include <iostream> // Start the main function. int main() { // Declare a variable for the user input. // Single character to store yes (Y) or (N) char answer; // Prompt … |
| | I have an error in my project and I can't fix the problem [CODE] #pragma once class Node { int code; int count; Node* parent; Node* rightChild; Node* leftChild; public: Node(int c1,int c2); void setCode(int c); void setCounter(int c); void setRightChild(Node n); void setleftChild(Node n); void setParent(Node n); int getCode(); …  |
| | Here is the class definition that I have so far: [CODE]#ifndef SAVINGACCOUNT_H #define SAVINGACCOUNT_H #include<iostream> #include<string> class SavingAccount { public: /** Default constructor */ SavingAccount(); /** Default destructor */ ~SavingAccount(); string getfirstName() const; string getlastName() const; static double modifyInterestRate();//static method declaration static double calculateMonthlyInterst(double,double); void setannualInterestRate(double); double getannualInterestRate() const; private: … |
| | [CODE]#include <iostream> #include <cassert> using namespace std; struct node { int number; bool high_priority; node *link; }; class linkedPriorityQueue { private: node *high_priority_front, *high_priority_rear, *queue_front, *queue_rear; public: linkedPriorityQueue(); void addQueue( int number, bool high_priority ); void deleteQueue(); int front(); int back(); bool empty(); bool full(); void print(); int size( bool … |
| | Does anyone knows what is the version of the C++ Builder in the image bellow ? [URL="http://www.escomposlinux.org/sinner/dibus/sinner7.jpg"]http://www.escomposlinux.org/sinner/dibus/sinner7.jpg[/URL] |
| | [CODE] std::string function(std::string buffer) { int Variable1 = 23; if( !buffer.compare("Variable1")) <--- i want the user to input the variable name..and have my program match the input with the variable name of the program and return the value it contains return Variable1; [U]<--- How do i convert this number into … |
| | I was under the impression that you could completely gaurd anything you wanted with an [icode]#if 0 [/icode]. Apparently this is not the case? I found some code that has opening /* comments but no matching closing */, and the /* seems to comment out the [icode]#endif[/icode], resulting in everything … |
| | i don't know how can i start or what classes i need in this project (wav player) with functions (play,stop,pause,record,mute) thanks in advanced |
| | Hi, I am trying to write a program for my mum who is a teacher, the program needs to be able to store students information like their name address SAT scores etc. I have a basic background in c, but i decided to try and implement this program using c++. … |
| | Hi there ! Actually I am a beginner in c++ and i have a problem to convert pseudocode to c++. Hope that anyone can help me Input : number of people, height of persons Process: division, addition, comparison (greater than and smaller than) Output : smallest height, tallest height, number …  |
| | how to known whether system is available or not at the time of start up of operating system in unix systems |
| | It's soon time for me to create some c++ program as a project for my class. But I have no idea what to do, any suggestions? |
| | Hey guys, I have a problem. I created a quick sort program and it functions perfectly for quantity less than 100. I searched for errors and changed and now for more than 100 values, it runs perfectly and sometimes it hangs. I am unable to decipher whats the error. Did … |
| | Probably easy for you guys but I'm not sure if I have this right!! Original function [CODE]int testing (int c, float d) { if (d > c) return (int) d; else return c; }[/CODE] What I need to do: The function returns the decimal value resulting from dividing d by … |
| | I need help with a flowchart in a question I'm doing. I've completed the programming code but just have no idea on flowcharts if anyone can give me an idea on how to do this then I'll appreciate it. This is the question: Write a C++ program that reads from … |
 | Maybe you can help me here triumph, or anyone else for that matter. I have users running my program on various operating systems, and am running into two common problems. The window\game window my program sends messages to and gets pixels from is an older direct x game coded in … |
 | Hi, I want to know what is allocator in C++ STL exactly ? For example what is the difference between the two following statements : [code] vector< int, allocator< int > > v1; vector< int, allocator< char > > v2; [/code]  |
| | I'm having a lot of trouble with a project for school. The project calls for me to create a random guessing game with three different levels. Each level should consist of a random number between 1 and 30. I have set my code to show between 1 and 5 for … |
| | Hi all, Im started to learn windows.h libary. I want to add example some buttons with messages with more stuff in it but where i need to put that code i didnt find any torial about it can somebody help me out. [CODE]#include <windows.h> #include <stdlib.h> #include <string.h> #include <tchar.h> …  |
| | Can someone please explain these functions when creating a class please. Searching hasn't helped much. I need to know how they are used and examples or links to examples would be helpful. Any help is appreciated. |
| | [CODE]#include <iostream> using namespace std; int main( ) { int num1 , num2 , num3; cout << "Please Enter Three Valid Integers Using The Keyboard"; cin >> num1 , num2 , num3; if {num1 => num2} && {num2 => num3} else num1 + num2; if {num2 => num1} && {num1 … |
| | i have to make this board game in visual c++. i got the source code in c from a website. but it has some problem and isnt' running. moreover,its a hectic task to convert it into c++ for my use. if anyone who has worked on scrabble cud help me …  |
| | I created an application in C# and then was told it had to be started from a button selection in a C++ exec program. How do I invoke my application from the C++ program?  |
| | I currently have a functor that finds the closest entity (by calculated distance) to the current entity. (Vector3 is just a 3D coordinate class) [CODE] template<typename T> class MinDistanceBGE { private: Vector3 v; // The location of the 'asking' entity. public: MinDistanceBGE(Vector3 vInput):v(vInput) {} bool operator()(T t1, T t2) const … |
| | [CODE] // foo vector of unsigned chars // contains 0x00, 0x00, 0xb8, 0x01, 0x00, 0x00, 0x00, 0x1F, 0xEC 0x82 std::vector< unsigned char > foo; long some_long = (long)&foo[6]; // i want the unsigned chars 0x00, 0x1F, 0xEC 0x82 to // make up the long decimal value of 2092162 [/CODE] Now …  |
| | I am making Yahtzee and this is what I have so far. This is my ThingsThatNeverChange.h header [CODE]#include <iostream> #include <iomanip> #include <cstdlib> #include <string> #include <algorithm> #include <ctime> #include <windows.h> #include <conio.h> #include <dos.h> #include <math.h> using namespace std; char savenum = 'y'; char rollAgain = 'y'; int i; … |
| | I am currently writing a program that uses OpenGL and so it uses the include file: #include <GL/glut.h> Now when I try to compile and run the program I get this message in the error folder: "fatal error C1083: Cannot open include file: 'glut': No such file or directory" Lastly, … |
| | hey everybody can any1 tell me what cpuh.h directory work ? or used for what ? :O and how to include this directory ? :O |
| | I created an application in C# and then was told it had to be started from a button selection in a C++ exec program. How do I invoke my application from the C++ program? |
| | If I want to generate all combinations of a set of numbers 0-max, I can do so with for loops. The following code will output all two-number pairs: [code] for(unsigned int i = 0; i <= max; i++) { for(unsigned int j = 0; j <= max; j++) { cout … |
 | I found [URL="http://www.daniweb.com/software-development/cpp/threads/358674"]this assignment[/URL] on C++ forum as was browsing to see little where I am in my mostly C little C++ thrown in understanding of C++ and if I should try to increase my knowledge in that language. I could not believe my eyes! The OP is completely lost … |
| | Ok ... I have a handle to a game window in which inside this game my little character picks up items off the ground and drops them onto himself. It is done with drag and drop. I left click down drag the item to the character and release the leftclick … |
| | What I am trying to do is simply get a coordinate system in which to run mouse commands in a window I have the handle to. What I am trying to do is macro my mouse. The catch is my mouse pointer has to move along with commands such as … |
| | Hi, I want to write thread function myself and don't want to use boost or AfxBeginThread(). Oh, and it works in /MD[d], /MD, MFX. Thanks a lot DestinyChanger |
| | Thanks in advance.. [B]I want to know how to get running process information of remote machine in vc++[/B] |
| | Thanks In Advance [B][U]Please any one can suggest me how to get network statics of remote machine in C++ .... [/B] |
| | so what i'm trying to get my head around it say i have a vector of vectors containing some unsigned chars and i want to copy a certain vector to another vector as follows. [CODE] std::vector< std::vector< unsigned char > > foo; std::vector < unsigned char > bar; for (int … |
| | hello, Am getting the below error while compiling my project. [B]error C2440: 'initializing' : cannot convert from 'struct __POSITION *' to 'class CPtrList &' A reference that is not to 'const' cannot be bound to a non-lvalue[/B] This is the snippet of code where the error happens. Tell me what … |
| | I'm new at C coming from java but I'm learning it in one of my college classes and so far it's a nightmare anytime I write a program with it :'(. I'm writing a Reverse polish notation calculator and I'm using gcc as my compiler. I want to be able …  |
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