51,593 Topics
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 | Hey, I am trying to make a program where when you click on a button, the button will open a new window and on that new window has different buttons you can click on. I use DEV-C++. Any solutions? |
| | Hello, I am quite stuck. I have my database running on a seperate machine from where I am writing my application. The connection between Visual Studio and the database seems to be fine as I can display data in various controls on the GUI. My problem arises when I try …  |
| | I keep getting a error that says invalid conversion from int to int here is my code sales report.h [CODE] #ifndef SALESREPORT_H #define SALESREPORT_H // No description class SalesReport { public: // class constructor SalesReport(int[]); int Salary(int[]); void DisplaySalary(int[]); }; #endif // SALESREPORT_H [/CODE] sales report.cpp [CODE] // Class automatically …  |
| | hi all.. Im using visual studio 2005. I want to import log4cxx.dll to my project. if you know how to do this please reply to this thread thank you wijitha |
| | I am working on a function, which is suppose to read the size of the binary file and read the data flags. The output is suppose to look something like The dataFlags are: 1 0 1 The size of the file is: 40. I got my code running, but doesn't … |
| | Hello expert, I had a problem in C# datagridview. I want display last month data or ?days only when form load. I know use SQL query. But the problem is at datetime and string. my idea is today date - 30 days. [CODE]private void OT_Load(object sender, EventArgs e) { ConnectionStringSettings … |
| | I feel bad for asking all the questions about the STL list, and thanks to those who have been helping me learn. I have a question now about inserting again, except this time I want to insert an extra data point into a tempList. I have commented out the code …  |
| | I have a Tree class that holds pointers to Player objects. Here is the code: [code=c++] #pragma once #include "Player.h" class Tree { private: public: Player* root; Tree(void); ~Tree(void); void DisplayInOrder(Player* localRoot) { if (localRoot != 0) { DisplayInOrder(localRoot->leftChild); localRoot->Display(); DisplayInOrder(localRoot->rightChild); } } Player* Find(const Player* key) { Player * … |
| | I was researching this topic for a some time, but I can't find definite answer (and I don't hope to find it there). Is it feasible to do heavy computations using C++? I mean specially computations on large multidimensional arrays. C++ has mechanisms which can help writing quite clean optimised …  |
| | Hi all, I am tryiing to figure out how to tokenize a string consisting of words in alphabetical order, all crammed together with no delimiters. I can't for the life of me see how this could be done without analyzing the string beforehand and hard coding a delimiter in. Example …  |
| | what is wrong with the ifstream and ofstream? I had try again and again and the info shown run to infinity. :( I tried a lot of times ady, will be glad if anyone can help, thank you :) Sorry if its looks messy, still learning all the way. [CODE] …  |
| | Hi, I'm trying to run a program I have coded that has the following setup: There is a tree containing "player" objects. Each "player" object has a linked list containing "weapon" objects. Each "weapon" object has a stack containing "round" objects. I need to set it up so that of … |
| | Hi there guys I can't seem to get the logic on how to put the total price of tickets bought in a movie reservation program. For example, a ticket price is sold for $2 and a customer reserved more than one seat, the price should add all the tickets bought … |
| | This is what I am suppose to do: Write a program that maintains a high score table of five entries, where each entry is made up of a player's name and score. The table should store the entries in order, from highest score to lowest. Your program should initialize the … |
| | as always since i am not student i study for hobby from a book, i dont ask for code or tell me the answer only for advices to help me understand better things its the first steps of a moving knight in a chessboard,i had to make it move randomly … |
| | what would be the most efficient method in timing the execution speed of one of my functions?  |
| | using c++ and SubRoutine. Problem1: Design a function-oriented program that computes the total of the squares from 1 to n which n is supplied by a user. ex. 12345=1+4+9+16+25=55 Problem2:Design a function-oriented program that computes the factorial value of an input N by a user ..Display the computed factorial value … |
| | learning to use string and iterators, and i am having trouble when i try to replace a string in my vector with a new one my trouble is starting when trying to replace a string( towards end of code) i get error with line myIterator = vectorGameList.push_back("teris"); idk, how i … |
| | Could somebody help me please?! I'm trying to include math.h in a simple program an it doesn't work. I got following errormessage:"fatal error C1083: Cannot open include file: 'math': No such file or directory". I've checked if math.h is in the include directorie of visualC++, and it is. Here is … |
| | Actually, I'm still new in programming. So that, please help me to do this job. This is for my mini project. I've search before, but didn't found the code that use Microsoft Visual C++ 2010 Express Edition as a compiler. Please,.A.S.A.P.  |
| | Hello. I've learned programming in Visual Basic 6 followed by turbo C++. I was able to make COMMERCIAL software using VB6 but not with C++. The thing is I need to learn a language (for software development) that has syntax and logic similar to C++ BUT COMES WITH AN INTERFACE … |
| | WriteProcessMemory(processHandle, address, name.c_str(),sizeof(name.c_str()),NULL) | | is this third argument valid for this function? if not how would i make my std::string return the start address of a c string?? |
| | Hi guys (and gals) I'm pretty new to c++ and programming, but I am keen as hell I bought a boot to start learning by Bjarne Stroustrup - Programming - Principles and Practice using C++ I am up to Chapter 3 and doing the 'exercises', only I am stuck on … |
| | I have a problem where I need to display a seating assignment for an airplane. It will have 13 rows and 6 columns. If the seats are empty, it should display * and if the seat is taken it should show an X. There will eventually be 3 different types … |
| | I am having a problem with my backtracking function it loops with certain data I can't write here the whole program code but can put here my function. [CODE]bool shareMoney(int quantity, int *values, int index, int moneyA, int half, bool *ifChosen) { if(moneyA == half) return true; else if(index >= … |
| | Hello, I am trying to write a program that will reverse the numbers inputted by the user. It doesn't seem to be having the desired outcome and I don't know why. Here is the code I am using, [CODE] #include <iostream> #include <conio.h> #include <string> #include <sstream> using namespace std; … |
| | I need help with this program. I do not know how I would calculate to find out the gallons as well as the cost as pictured in my output. How would you do this? Here is my output: For each student, you will get the gallon of paint Input the … |
| | This is the function in question... What happens is the user opens notepad, if notepad is open then they are required to type a password.. If its invalid, notepad is closed.. if the password is valid, it continues.. else if the user hasn't entered a password within 10 seconds, timeout.. … |
| | I am doing some code challenges from a book and am stumped on this particular challenge. I am supposed to pass an array to a function, use the function to determine the minimum, pass that value back to main and print a response varied by the returned value. The problem … |
 | How can I change the image on the picture box when the mouse is over the picture box I know how to end the application when the mouse is over the picture box but what is the code for changing the picture C++ (I need to use mouse enter class) … |
| | Hello! I am trying to write a program using recursive functions to identify the path to a given maze. The thing that I am confused about is how to move to the next direction in order to check which way the path goes. For example: 000000 011100 010100 010110 0S00F0 …  |
| | Hello all, So I am having trouble figuring out a runtime error I am getting in my code. Essentially I read in data and push it into two lists (using the STL list). Then I use the .sort() function to sort the data by average. However I am having a … |
 | I have just started learning Gtkmm basics, and I the box widget is doing my headache, and here is the problem: [CODE] #ifndef NEWFILE_HPP #define NEWFILE_HPP #include "gtkmm/window.h" #include "gtkmm/scrollbar.h" #include "gtkmm/adjustment.h" #include "gtkmm/box.h" #include "gtkmm/label.h" #include "gtkmm/scale.h" #include "gtkmm/togglebutton.h" class window:public Gtk::Window{ public: window(); ~window(); private: Gtk::VScrollbar bar; Gtk::Adjustment … |
| | c# interview questions are generic collection faster. I had a argument with the interviewer and my thought is they are not faster please help. |
| | Hello, I'm not new to C++ but I usually program in Linux. I'm currently programming in Microsoft Visual Studio 2010. I just installed the Magick++ x64 binary library. I've read the "detailed" installation instructions on what to do next but honestly I am completely lost. In the .pdf it says: … |
| | I'm writing a program that inputs the amount of money and outputs it preceded by dollar sign and divided by commas into groups of three digits I'll enter the money as string and call function called mstold()and returns an equivalent number as long double so my problem is how can … |
| | Hi, I am a rookie coder. My goal is to incorporate the magick++ features of reading and converting different image files to an existent project. So how do I go about this? Should I download the binary installer or the source files? And what to do after that? I am … |
| | // Does anydody can help me with this program and make it work. // this is the main //Now just need to write average functions. [CODE]#include<iostream> using namespace std; // function prototypes. void getScore(); void calcAvg(); void findLowest(); int main () { int Score; //ret is for return :) another … |
| | After your program works correctly for one student, add a loop so the user can process any number of students. Prompt the user for the number of students to process; use that value to control the loop. *How do I prompt the user for the number of students to process …  |
| | I thought this program was as good as done, turns out, it's more broken than I thought! Right now I'm in a panic, since it's due tomorrow, and I have a few big problems with it. Problem 1: I need to either open an existing file, or a new one … |
| | hey, this code I wrote wont work. The 2nd and 3rd buttons wont show up in the program. [CODE] #include <windows.h> /* Declare Windows procedure */ LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM); /* Make the class name into a global variable */ char szClassName[ ] = "WindowsApp"; int WINAPI … |
| | I know how to replace part string... [code]if (linia->Contains("system_token")) {poprawka = linia->Replace( "system_token", systems );}[/code] but what should I do, If i need to replace ENTERs (linebreaks)... For example: User type in textbox [code] Hey, I am Michael [/code] The result (taken as variable) should be: [code]Hey,</br>I am</br>Michael[/code] Thx! |
| | I want to read in multiple lines from a file, but I am only able to get my program to read the first line. The program prints out two other lines but the values are zero. [CODE] double cost[3]; int lowerRange[3]; int higherRange[3]; bool active[3]; ifstream inClientFile("ad.txt", ios::in); for (int … |
| | [CODE]int userChoice(){ int choice; cin>> choice; while (choice!=1 && choice!=2){ cout<<"that is not a valid choice please choose again "; cin>>choice;} return choice; }[/CODE] the whole point of this is that if a user doesnt enter 1 or 2 then it tells them to enter 1 or 2 and wont … |
| | [CODE=c++]#include <iostream> #include <fstream> #include <string> using namespace std; int main() { string linea; ifstream fileIn("input.txt"); ofstream fileOut("output.html",ios::out); //working with the input text if (!fileIn) cout<<"\nERROR: Unable to read the file!\n"; else { //working with the output text if (fileOut.is_open()) { fileOut << "<html xmlns=\"http://www.w3.org/1999/xhtml"; fileOut << "\" xml:lang=\"en\">" << …  |
| | Hi, its an assignment i need to do. The while loop working on well when i input an integer but when a letter is being input, the while loop run for infinity. I had seen through the other thread but still cannot understand how to do. Please help... [CODE]while(choice!=1&&choice!=2&&choice!=3&&choice!=4) {cout<<"The … |
| | I can not seem to figure out how to drop the lowest score. When I run it it says the lowest score dropped was 0. How do I fix this? [CODE]#include<iostream> #include <string> #include <cmath> using namespace std ; string getName (); int averageScores( int); void printMessage (string, int); void … |
| | So this is my first post. I looked everywhere and can't find any help. Here is the problem: Create a 2 dimensional array of integers with 3 rows and 8 columns. Fill this array with 0’s and 1’s (binary numbers) randomly. Each row represents a byte. You are to add … |
| | first off i apologize for my ignorance but i cant seem to find a clear answer to this question, if i have a function with variables in it, do those variables reset every time i call the function for example if i write code to build a game and then …  |
| | Basically If the user does not enter a string or character or press any keys after a certain length of time, program will goto or ask again.. or do whatever.. Problem: Not allowing the user to enter input.. Note accepting user input.. [CODE] #include <windows.h> #include <stdio.h> #include <iostream> using …  |
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