49,766 Topics
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| | Hello. I have encountered a problem while programming. I'm trying to put my outputs into a chart, but the lining does not stay the same, so sometimes I get a perfect chart, and sometimes I get a totally imperfect chart. Can anyone give me the solution to this? Thank you … |
| | In Visual C++ Express Edition you can insert button controls on a form. These buttons has a rectangular form. You can even do them like a square. Is it possible to do Round Buttons in C++, like this letter: [COLOR="Red"]O ? [/COLOR] (It is important that the area where you … |
| | I have a project that consist of 2 Forms. I am trying to open Form2 with this code but when I compile the project I have this compile error and wonder what this meens and why it doesn´t work. cannot convert from 'System::Windows::Forms::Form ^' to 'Form1::Form2 ^ 1> No user-defined-conversion … |
| | I have no idea how to make somthing like this, and i'm kind of new with file I/O. How would you start somthing like this? O.k. here is what I have to save, I have roughly 56+ variables that need to be counted in this. But what I am having …  |
| | Hey, I'm having a problem reading from a device attached to my serial port. I have a big application which uses a thread to read from the serial device and writes the data to a log file. The device is set to transmit data at 500Hz, which means that my … |
| | Hi How can I set the include path in C++ using command line Regards Karan |
| | I have assigned a backgroundimage (JPEG) to a button. Is it possible to programatically make this image visible = true or visible = false ? Like you have this beginning: [code] button1->BackgroundImage-> Visible = true, Visible = false in any way ? [/code] |
| | create a program that includes two functions named calcavg() and ariance(). The calcavg() function should calculate and return the average of the values stored in an array named testvals. The array should be declared in main() and include the values 89,95,72,83,99,54,86,75,92,73,79,75,82,73. the variance() function should calculate and return the variance …  |
| | I try to find an event for if you rightclick and leftclick a buttoncontrol in a Form application. Simply, to detect if it is the left or right button on the mouse that is clicked. What I want to do is that if I rightclick a button I want the … |
| | Hi, I'm writing a template class as below. Trying to add a funtion to browse all the elements of an instance, that needs a vector iterator. When I compile the code getting a list of errors. Two of them typically draw my attention. The Error reads [B][COLOR="Red"]error:[/COLOR][/B] dependent-name ` std::vector<T,std::allocator<_CharT> … |
 | I've been reading up on templates and they just seem like so much hastle for so little reward. I can't find anyway to effectively use it over vectors. I am just having a lot of trouble learning them because the concept seems so weird.  |
| | if i want to check that wether the entered character is char type or int type,how can i do that?  |
| | Hi I want the format of the date like Fri, Dec 12, 2008 Earlier I used CTime today = CTime::GetCurrentTime(); CString chdpl = today.Format("%A, %B %d, %Y" ); for Friday, December 12,2008 But I don't know how to specify Fri in format Regards Karan |
| | Hi How to get WeekdayName in VC++ I have searched on net and found the use of CTime::GetCurrentTime(); But this is the lengthy method Is there any shorter one. Kindly advice Regards Karan |
| | I'm doing a program that shows which tickets have been sold for an auditorium. I am a beginner to c++ so I am not sure how I can do the following: a) Allocate an input with a character (e.g. when I enter 'A10' .. how do I allocate 'A' to … |
| | I got a code. But it is not working compilation error is - undefined symbol try , throw , catch. I am using C++ compler version 3.0. Is this version not enough. Or any header file is to be included for exception handling. Please help me |
| | Hi I am using the code to get the current date CTime aNow = CTime::GetCurrentTime(); char month[3]; char day[3]; char year[6]; char todaysdate[30]; itoa(aNow.GetMonth(), month, 10); itoa(aNow.GetYear(), year, 10); itoa(aNow.GetDay(), day, 10); strcat(todaysdate,month); I am getting value of month but apart from that I am also getting an unexpected character … |
| | I am doing C++ assignment, it invols designing a program where the user can put binary numbers and gets a word in result. I have done the first part of the program but i am strugling to do the the last to tasks. Here is what i have done so … |
| | Hi I am using Itoa function to convert int to string. CTime aNow = CTime::GetCurrentTime(); char* month; itoa(aNow.GetMonth(), month, 10); But I am getting error Unhandled exception at 0x00573deb in App_Name.exe: 0xC0000005: Access violation reading location 0x0000323d. Am I missing something Regards Karan |
| | Hi, I want to know what exactly happens when constructor fails. Do we have mechanism which will provide us information regarding failure of constructor other than exception. What happens with the memory already allocated to the object when in some circumstances construction of object fails. |
| | I was trying to create a simple struct array database that would be able to look up a user id and print out there first name, last name and age. So I've created a text file with 10 simple names ...here is my code ...can any one help me with …  |
| | Hi, everyone. I'm trying to use gettext in complicate application. It consists of C++ code wrapped in python interface via sip. Is it possible to bind textdomain once in python code, and don't use this function in C++ code? Now I have to use this function twice like is shown … |
| | [CODE]#include <iostream> #include <cmath> using namespace std; const float G = 32.17; // function declaration float caltime ( float,float, float ); float calheight ( float,float,float); // main function int main() { float theta, cotheta, sitheta, distance, velocity, time, height; cout << " Input the angle of elevation : " << …  |
| | please tell me how i can code a BST in c++ ? i know that each node is like that of a linked list where one 'box' stores the item. another two boxes stores the address/pointers to the two siblings. but how can i transform this into code? like this? … |
| | [QUOTE]I was given feed back from my instructor and I am not sure how to implement these changes. Here is the feedback: [LIST] In you MAIN module you call a WELCOME MESSAGE module but you don't have one defined in the code. [/LIST][LIST]Why do you have a variable named ItemName? … |
| | so i think we might have nested loops in my upcoming final. so im practicing some challanges. heres a program sample For how many years have you collected rainfall data? 2 Enter the rainfall (in inches) for month 1 of year 1: 4 Enter the rainfall (in inches) for month … |
| | Hello, I am trying to write the merge sort algorithm. My code is as follows: [code=c++] #include <iostream> #include <cstdlib> using namespace std; void m_sort(int list[], int temp[], int left, int right); void merge(int list[], int temp[], int left, int mid, int right); void mergeSort(int list[], int size) { int … |
| | Hello, I have the following setup, where vertexArray is a pointer to float (float*). It is supposed to check if the pointer has been allocated memory for. If it hasn't, it should allocate memory, but if it's already been done it will go on to put values in the array. … |
| | Hello , I am a noob in C++ coding and wondered if anybody here can please help me, I would really appreiate it I have to create a separate function within a program to check if the date entered by the user match the month he entered E.G= if he … |
| | can we do sorting in chars in c++ like if acdb is input and abcd as output any one provide me prog for this ........... or Sample code: plz........... |
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