51,593 Topics
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| | Hi All, I have a USB capture Card (EasyCap USB2.0 Video Adapter with Audio) Model DC60. In Windows XP it comes under Imaging Devices as (Syntek STK1160). i have attached a camera to the input and windows xp displays the video in it's default dialog. I want to programatically display … |
 | >>Ok, so time() function (argument being null) returns what? It returns the number of seconds since 1970, as you previously posted. It doesn't matter whether the parameter is NULL or not, it will always return the same value. |
 | To preface this post I'm going to say that what I'm looking to do is purely in the theorhetical stages at this moment so I don't have any code to share yet. At it's basest essence what I'm attempting to do is compare Image A with Image B to determine … |
| | the problem message as above title. this problem cause when I perform update. When I select record and click update button. It will show the data into above textbox,combobox and picturebox. When I click save button it will pop out the message(title). Line 32 [CODE]private void btnSave_Click(object sender, EventArgs e) … |
| | [CODE]#include <stdio.h> cant figure it out, im trying to count all digits please help with this bugs int main() { int iochar, numdigits=0, numlower=0, numupper=0, numwhites=0; printf("Please enter a phrase:\n\n"); while((iochar=getchar())!=EOF) { if ((iochar='\o ')||(iochar='\t')||(iochar='\n')) { numwhites++; putchar(iochar); } else if((iochar>='0')&&(iochar<='9')) { numdigits++; putchar(iochar); } else if(('a'<=iochar)&&(iochar<='z')) { numlower++; putchar(iochar-32); … |
| | Hi folks, I have googled around, read a lot and still can't figure it out. I know a bit of C++, but am far from literate in all commands. I am much happier with QBasic (old i know, but it works). I have made qb code and need to convert …  |
| | after finishing books of thinking in c++ vol1 and voL2 , ı decided to read c++ programming language 3rd edition by stroustrup. Do you think that it is appropriate?  |
| | Hey everyone. I am attempting to create a simple console maze generator in C++ for a school project. I've already gotten most of it down but I'm having a problem debugging the actual generation algorithm I've implemented. I've been learning C++ for the past few months now but I haven't … |
| | Hey there guys I need your help as I do not fully understand the program source code below. This program will multiply two numbers without using the multiplication sign (*). I am confused with the highlighted part, the for loop part. Here it is: [CODE]#include <iostream> #include <string> using namespace … |
| | Can someone either explain this or give me an example of what it is asking for. Heres my code if you need it In the attached picture [CODE] /////////////////////////////////////////////////////////////////////////////// // // Name: GCD.cpp // Author: Jeffrey A. Stone // Course: CMPSC 101/121 // Purpose: Computes the GCD of two integers. …  |
| | I am working on a rainfall program that will ask the user to enter the total rainfall for each month, then will calculate the total rainfall for the year, the average monthly rainfall and is supposed to display the month names for the highest and lowest month. I have everything … |
| | Having trouble stopping my do,while loop. It asks the right questions, and I thought I had the right qualifier, while blah>0, do such and such, but it continues in the loop and keeps asking the questions Here's what i've got: cout<<"Now let's subtract the door and window area."<<"How many doors … |
| | I am using darkGDK to complete an asignment where I am to create a sprite with a moon background and to make a rocket ship move up with the spacebar pressed and come back down agian when it is released. I can't figure out what I don't have in my … |
| | hi all I want to start now with C++ windows.h libary. I already know now the basics i only programmed in CMD command line programming now i want to program further are there some tutorials or something that i can go further i dont want to stay only at a … |
| | hello i need to fix the problems in this program. can some one please fix them for me or give me a hint how to fix them cause i really do not know how to fix them. i also added the errors if you do not have C++ program at … |
| | Hi, Currently i have requirement to i have to connect C# applicaton to DB2. I dont know much about DB2 and i dont know how to connect this and which tool i need to use for this. please suggest me how to connect this and which type of tool i …  |
| | simple question that baffles me. attempting to get multiple data from a user, but cannot get the program to "wait" for the data. It spits out all the questions at once. here's what I have written //woody0114 #include <iostream> #include<cmath> using namespace std; double HSF(double ft_height, double ft_width, double s_height, …  |
| | just as the title says i have a problem with serializzing class which has a pointer to class. so this is a mock-up of my class structure [code] class X{ private: int number; public: int set_number(int); int get_number(void); //I'm defining the stream operators so class will act as primitive data …  |
| | 0 down vote favorite I'm new to Qt, and trying to compile and run this Qt program I typed from the [I]Programming with Qt[/I] book: [CODE]#include <qapplication.h> #include <qlabel.h> int main(int argc, char *argv[]) { QApplication myapp(argc, argv); QLabel *mylabel = new QLabel("Hello",0); mylabel->resize(120,30); myapp.setMainWidget(mylabel); mylabel->show(); return myapp.exec(); }[/CODE] When …  |
| | I have a assignment which requires the use of multiple files. I don't believe I am linking them together correctly. I'm using visual basic 2008 at the moment. Ofter I get the program working I'll create a make file and test that. I'm also not too familiar with the string.h … |
| | Well I have made separate programs for testing and debugging purposes and now I want to put them together. Is it possible to use one .cpp as some sort of a header file, and call it later on? I saw it done before but I think it was a makefile(which … |
| | My assignment is to make a program that can resize a dynamically allocated array. But when I delete a value, the program crashes (memory leak?). Here's my code. [CODE]#include <iostream> #include <cstdlib> #include <cstring> #include <limits> using namespace std; typedef char* charPtr; typedef charPtr* strPtr; strPtr delEntry(strPtr a, int &size, … |
| | Who can help me?? [B]Microsoft Visual Studio 2008 Window Form Application C#[/B] I'm want store some data and picture in access database and display the data and picture in datagridview. when the user double click the record in datagridview. it will display data and picture into above textbox for update … |
| | So, here is the thing. I am dissecting some code to try and better understand how to finish my project (I'm a student. Made it to the final project without getting too lost!) and I am a little stuck. This part of the code randomly fills a 32x32 2D array …  |
| | I tried out this sample program [CODE]int main() { int *i=new int; return 0; } [/CODE] The return type of new is a void pointer . Pasted below [iCODE]void* operator new(std::size_t);[/iCODE] [iCODE]int *i=new int;[/iCODE] new int in the above statement should return void pointer . How can a void pointer … |
| | [CODE]#include<iostream> #include<stdio.h> using namespace std; int main() { for(int i=0;i<10;i++) { char *a=new char[10]; printf("%u\n",a); } return 0; }[/CODE] This is the output that i got 5377864 5377888 5377912 5377936 5377960 5377984 5378008 5378032 5378056 5378080 why the memory is increased in size of 24? |
 | Hello everyone. I am looking to see if there is any possible way Visual Basic 6.0 code can run in Visual C++ 2008 Express. Any help would be very appreciated. |
| | Yes, I did a search, and I understand time() better than before, but I would appreciate personal help. Initially, I wanted to make a program/function that would randomly generate a number. Next, I wanted to limit it between two defined numbers. I came across rand() yesterday, and I couldn't get … |
| | Hi, I'm trying to convert a string to an enum data type, and am having a bit of a hard time to do it. Basically I have [CODE] enum MyType{ Saw, Saw2, Saw3 }; [/CODE] more over I try to read from the console: [CODE] MyType m; cout << "What's … |
| | please, someone please help me understand polymorphism. I need help. Thank you. Pam |
| | hello all. I'm relatively new here. and very much a newbie in c++, string manipulation. I couldn't solve this. it has taken me soooo long. I did search the entire forum and google but those solutions seem a bit advance for my string problem. I know this is just basic, … |
| | I need help writing my program. Please i am new to C++ . String manipulation: the user inputs a sequence of characters; the program prints all possible permutations of those characters. Example: input: “abc”; output: “abc acb bca bac cab cba” |
| | The line "getline(cin,get_password);" doesn't repeat if the user chooses to re-enter the password. It pauses for a short while when it should run that line, refuses to accept any data, and then continues as normal. [CODE]#include<iostream> #include<string> #include<windows.h> using namespace std; int main() { string get_password; string password="abc4"; char repeat1; … |
| | Could anyone please explain what memory mapped files are and why this method is better then reading a file with I/O operations when needed? i've read msdn...wiki...and im still confused at why i cant understand how this works/ what it is doing exactly -thx |
| | Element.h:15: error: using typedef-name ‘Element’ after ‘struct’ TrainToList.cc:6: error: ‘Element’ has a previous declaration here I understand that Element is getting defined twice but I do not know how to fix this. I must use Element as Car (or vice-versa??:confused:). Please suggest a fix to this problem. Now here are … |
| | Hi all, i was wandering if someone good explain to me about clr? what are some advantages or disadvantages of programming c++ with clr, what are the main differences if there are any? If I understand it right clr programming is using the .NET framework, but could someone please give … |
| | 1. Are memory adresses a certain size? I've seen some that have 6 characters after the 0x and some that have 8 after the 0x 2. A pointer like this: int *pointern does what exactly? Selects a location in the memory? Randomly? Or maybe like the first availible memory adress? … |
| | What im trying is to input 'yes' to continue and reset all values or 'no' to exit the program but i have tried to figure it out but im having trouble please help.thanks [CODE]#include <stdio.h> #include <stdlib.h> #include <math.h> int main() { float num1,result; char sym; printf("Calculator Is ON\n"); do{ … |
| | Hi I wrote a code for Galerkin Finite Element .The program runs with no error but have some problem breaking the loop also the results are all wrong .Can anyone please help me? This is my first time writting aprogram and I am so confused. #include<stdio.h> #include<stdlib.h> #include<math.h> #define Limit … |
| | I have the coordinates of n points and I need to calculate the distance between each point until the other points. 2 0 3 0 0 5 2 1 ... ... ... I am beginner in C + + and I've worked a lot before asking for help. Already, I … |
 | Ok so I have this project in ming for along time now. Basically I have created a console app that works as a calculator by using mathfunctions from a DLL I also have created. Now the problem is I want to make it so that people can create their own … |
| | hello there, im given an assignment to basically prompt user to enter name, start time, end time, am or pm, and the pay rate and from that information i need to calculate number of hours worked and how much they get paid for the day, but im very stuck. please … |
| | Hey i wanted to know if there's a program that shows u a pattern on how they got the number if i give them 3 examples? for Ex: 1) 35777903801230601 (Encrypted) = 46071642 (Decrypted) 2) 35777903248036801 (Encrypted) = 43975216 (Decrypted) 3) 35777903508068601 (Encrypted) = 91756761 (Decrypted) |
| | I have an assignment until next week and i don't know hot to complete it In the program in c we have to help a cat escape from a dog which has double speed. The program works as follows : the data of the program are read from the file … |
| | Hello! I am writing a code of linked list in which user can insert or delete names but the list must remain sorted alphabetically. I have written the given piece of code by now but it is not correct. Please help me out. I took help from this link: [url]http://stackoverflow.com/questions/2941368/sorting-names-in-a-linked-list[/url][code]//function … |
| | Hello, I am attempting to display a PDF in Gtk (C++) and don't know how. I have searched the web for a tutorial yet I cannot find one please, may someone tell me how? Thank you. |
| | what's the difference between: [CODE] // main.h #ifndef X_H #define X_H #include "point.h" // supposing that point.h contains the declaration of Point class class MyClass { private: Point m_Point; //... }; #endif // main.cpp #include "main.h" //... [/CODE] and [CODE] // main.h #ifndef X_H #define X_H class Point; class MyClass … |
| | Hey everyone :) I've been working on the first part of a program which I'm doing in 4 steps. Here's the first step which I have completed: Function inputAndValidate This function inputs the time. The time should be entered as two separate values for the hours and minutes. Do not … |
 | I'm making a system cleaner on C++ and what would be the best project to use? @ Windows forms application @ Empty project @ Win32 project @ Win32 Console application Note: This project has to have interface it's not console based! Reason why there is console app is you could … |
| | I'm creating a class for a text analysis for letter frequency. I am trying to compile it, but i'm having some problems. Could someone look at this for me? This is what I have so far: [CODE] class Analysis { private: string letters[26]; string text; int count; public: Analysis() { … |
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