49,767 Topics
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| | Hello everyone. I've recently written a program which draws some stuff to a DC; however, on a screen invalidation, the things drawn on the DC, dissapear (get erased.) Does anyone know how one would be able to draw to this dc, and have whatever was drawn to the dc remain … |
| | I managed to get a quicksort function to sort the numbers in a dynamically allocated array of structs, [code]struct Contact { char first[maxstring]; char second[maxstring]; int number; }; //and the dynamically allocated array, Contact *person = new Contact[numberofcontacts]; //The quicksort function I used to sort numbers is: void Quicksortnumber(Contact *person, …  |
| | So, I'm trying to write this program here are the listen instructions. 1. You are going to write a program that uses 3 input files and 3 output files 2. your program will include a function template that sorts an array of values in ascending order. the function will receive … |
| | When I click the "Go" button I want the button event in "wxQuestionMain.cpp" to call "somefunction()" which is inside "otherFile.cpp". That works just fine. But I then want to change the text in the textbox "txtCtrl1" from inside "somefunction()" and that won't work because "somefunction()" is not part of the … |
 | Here is the program assignment: [icode] Graph abstraction is important because it is used in many different areas of science, engineering, computer sciences and software engineering. For instance, the Internet makes use of graphs to represent the Internet router network configuration in order to determine the best route for forwarding … |
| | Hi everyone, I seem to be experiencing some problem with the linking of header files. I'm sort of creating Date structures and I have the following files: [list] [*][b]Date.h[/b]: Class Date declaration [*][b]Date.cpp[/b]: Class Date functions definitions and auxiliary functions [*][b]DateFormat.h: Class DateFormat declaration (used to format Date objects) [*][b]DateFormat.cpp: … |
| | Hi, Im currently making a program which would connect to a server which I got working perfectly, however I've gone to work on another feature for the program and that displaying the server details via an image. I've got the image I want its on the internet, but how can … |
| | Hello, I have a problem in reading p5 PGM file: [CODE] ifstream::pos_type _Start, _End, _Size; ifstream::off_type _newStart; char * memblock; vector<vector<int> > initMatrix ; std::ifstream inf; inf.open("a.pmg", ios_base::in | ios_base::binary); if (inf) { std::string line; for (int i = 0; i<3 ;i++)//skip the first 3 lines that contain the info … |
| | I have been running the program but it quits in the end on pressing alt+f5 it says BGI Error:- Graphics not Initialized(Use Initgraph) but i have sphecified the graphics driver properly and also egavga.bgi is also there in the folder bin |
 | Hello, I have two arrays that contain different numbers that I need to compare with another array.. e.g. Array 1: 10 20 40 70 Array 2: 5 3 10 18 2 Basically, I want to write a program that calculates the highest value each array and then swops the values.. … |
| | please help me using C++ to create the following hierarchy of classes; (1). a [B]Person[/B] class with fields for name (type String) and an email address (type String). it should contain two constructors: one without input , a second one with input name of type string and email of type …  |
| | Hey guys. I'm trying to create a program which adds, searches & removes items from an array & i've been messing around with the code, trying to find answers on the internet but so far no dice. Could any of you help out? [CODE] void removeString(List& s, string strKey, const … |
 | Hey i have no idea whats goin wrong with this i think its to do with the fact that its in private but i have an error with calling weapon in the monster class (Monster.cpp) the error states that it is inaccessable :S here is my code: [CODE] //Monster.h #ifndef … |
| | [CODE]void inorder(struct node *r) { if(r!=NULL) { inorder(r->left); printf("\t %d",r->data); inorder(r->right); } }[/CODE] in the above code when the last element is reached i.e r->left becomes null then when inorder(r->left) is called it will send a null value to the function and if condition becomes false so the it'll come … |
| | Can some one help with this please. I need to update a Passengers Name, im using Strings not Char. [CODE] if (choice == 2) // Updates Record.. { merge_sort(0,N_PASSENGER-1); cout << "\n\t Enter the Seat Number:"; cin >> key k=binarySearch(passenger, 0, N_PASSENGER, key); // Search Array if(k>=0) cout << " … |
 | Hey Im currently working on a application server written in Java but to use information from a C++ program. The company seems to agree that rewriting thousands of lines of code would be time consuming and simply making libraries of key functions of the C++ program and then passing them … |
| | Hello, I joined here desperately asking for your help I have an assignment about creating a program that loads a text file given. the text file contains many lines and those lines are questions and answers it is on this sequence question answer question answer and so on so we … |
| | Soo last year, if im not mistaken , i asked for help with the random numbers generator. I didn't do C++ for quite some time, but i started again. So here is what i have : [CODE]#include "stdafx.h" #include <iostream> #include <fstream> #include <ctime> using namespace std; int main(){ srand(time(NULL)); … |
| | hello.. Can any one provide me the code in c++ of deleting the folders or a folder that is not empty..plzz  |
| | I know that this is a c++ forum but im a college student and i cant practice the programs without clearing this problem coz most of the programs require "resource.h" this program is to attach a menu to a window [code=c++] #include<afxwin.h> #include"resource.h" class myframe:public CFrameWnd { public: myframe() { … |
| | Hi, i have a project using basic inheritance to output shapes, but i would like to make it draw the shapes aswell. Does anyone know where i can find tutorials on how to draw shapes in dos using C++? thanks |
| | I'm having difficulty getting graphics into my C++ program. using Ubuntu 11.10 I /think/ my problem is simply my inability to download and install graphics libraries. Basically at the #include ... section of code i get an error every time about being unable to find xyz which i haven't managed … |
| | I have an assignment where I have to write a program to prompt the user for a file name and location (it is a text file), once the user has entered that, a menu pops up and gives the user 4 options and asks which one they would like to … |
| | is there a warior i can do the following: lets say i have [CODE]string userChoice;[/CODE] assume i have a Warrior class with move function in it is it possible to define : [CODE]#define WARRIOR "Warrior"[/CODE] and than use [CODE]userChoice=WARRIOR;[/CODE] and call the function [CODE]userChoice.move()[/CODE]? [CODE]void play(char gameWorld[][BOARD_SIZE]) { Warrior War(1,1); … |
| | So here I am, having a difficult time figuring out what's the problem, first of here's the code: [COLOR="red"]Preke.H[/COLOR] [CODE]#include <string> #include <sstream> #include <iomanip> using namespace std; class Preke { private: string pav; // prekės pavadinimas int atdata; // atvežimo į parduotuvę data int pardata; // pardavimo data int … |
| | Hi guys, I am implementing a singly linked list. The thing is whenever my str_temp goes above 12-15 elements, i get this error malloc: *** error for object 0x1099008b8: incorrect checksum for freed object - object was probably modified after being freed. *** set a breakpoint in malloc_error_break to debug … |
| | Consider a used-car yard called [B]Second Car Sales[/B] that needs to store details of the vehicles they have in stock. For each vehicle, we need to store the following details; Registration number, Make, Distance traveled in miles,Buying price and Selling price($) and Name of previous owner. [U]Required[/U]. (1) You are …  |
| | Hi guys, I have been given a task in my C++ course to develop an application that will ask the names of the students and store the entered values into a string type array. Considering each student has participated in four exams, the program should ask the points received and … |
| | Can Anyone advise me on the problem with the namespace in this code im getting an error. [CODE]//Main. #include "Weapon.h" #include "Room.h" #include <iostream> #include <fstream> using namespace std; int main() { ifstream myfile; string line; myfile.open("BronzeSword.txt"); if (myfile.is_open()) { while ( myfile.good() ) { getline (myfile,line); cout << line … |
| | Hello, I'm trying to read in words from a text file that look like: The World Fell Over etc.. But it doesn't seem to be working.. I've written some code however it will only show the first word OR loads of question marks.. [code] string dictionary() { string words[500]; ifstream …  |
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