49,757 Topics
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| | I am having trouble overriding the virtual functions from the parent class Label. Can anyone please help me on what the correct syntax for the declaration and implementation of OnMouseEnter, OnMouseDown, OnMouseLeave, OnMouseUp etc. [CODE=C] using namespace System; using namespace System::Collections; using namespace System::Linq; using namespace System::Text; using namespace System::Drawing; … |
| | Hi, i have download the project from microsoft using WMEncoder to capture a desktop activities as video. Its working fine. But the problem is it capture a full screen but i need to capture the specific window. I am new to VC++ thats y i dono how to change the … |
| | if numInput isnt an integer I want it to prompt "Invalid Try Again" and ask for input again [CODE] std::cout << "Enter a Number (Max 10 digits)(99 to Exit): "; std::cin >> numInput; [/CODE]  |
| | Hello guys. First of all i have to say i've been learning a lot on daniweb and appreciate all your effors. Secondly, i'm currently learning MFC with c++ and atm I am making a program called "fast fingers", where you have to press those chars on keyboard that are dynamically … |
| | Hi, everyone. This is my first post here. I'm not very good with C++ and I have to write a program using 2 dimensional arrays. My program is a Menu that works with 2 two dimensional arrays. The program has to generate two random matrices and perform arthimetic procedures like … |
| | Receiving exceptions from TAO with different minor codes... How do I decipher what is the problem using these minor codes? The explanation given in Wikipedia is a little confusing. This is what is mentioned in Wikipedia: Each standard CORBA exception includes a minor code to designate the subcategory of the … |
| | #include <iostream> #include <fstream> #include <string> #include <cctype> using namespace std; const int num=1000; int main(int argc, char *argv[]){ if (argc == 2){ ifstream file; file.open(argv[1]); } else cout << "You typed only one file" << endl; ifstream file; file.open(argv[1]); string space; char word; int i=0; int w=0; int s=0; … |
| | Hello, I am not sure if this is the place to ask. I develop an algorithm in C++ under Windows XP with Visual studio 2008, the algorithm is proved to be linear ( O(n) ), there is a usage of memory during the algorithm ( all of it is being … |
| | Hello, I just started learning c++ and I'm dabbling with file input/output. But now I have encountered an issue with this code: [CODE]#include <iostream> #include <fstream> #include <string> using namespace std; int main() { ifstream inFile("values.txt", ios_base::binary); string Value1; int Value2; int Value3; int Value4; if(inFile) { inFile.read((char*)&Value1, sizeof(string)); inFile.read((char*)&Value2, … |
| | Hi all. I am having trouble with these inside a loop I have. The loop is used to fill a struct and I want to check each input before it is accepted. It works fine if the input is what is expected but doesnt if it is incorrect input. Here …  |
| | [CODE] #include <iostream> #include <iomanip> #include <cstdlib> #include <ctime> using namespace std; int main () { int arr[9][9], n; srand(time(0)); for (int i=0; i<9; i++) { for (int j=0; j<9; j++) { n = rand() % 9; if (arr[i][j] == n) { n = rand() % 9; arr[i][j] = n; … |
| | Hi im trying to calculate the average of an inputfile using a 2d array. I tried to calculate the average per row and add them all together but my code gives me an average of zero. I was wondering if anyone can see what im doing wrong or a better … |
| | //what is the problem in following program? #include <iostream> #include <cmath> using namespace std; // FUNCTION PROTYPE FOR test_polar void test_polar(); // FUNCTION PROTOTYPE FOR read_point void read_point(double & radius, double & angle); // FUNCTION PROTOTYPE FOR degrees2radians double degrees2radians(double angle); // FUNCTION PROTOTYPE FOR compute_coord void compute_coord(double radius, double … |
| | Hi, I began file I/O and I did exactly what it said in the book I was using and it doesn't seem to work for some reason. Am I doing something wrong? [CODE]#include <iostream> #include <fstream> using namespace std; int main() { ifstream fin("hello.txt"); if (fin.is_open()) cout << "It's good"; … |
| | Can someone please help me with this code? I have already taken out some of the errors, and my instructor says to make sure my brackets are enclosed. When I do this though I get more errors???Help!!! #include <io> #include <string> #include <iomanip> using namespace std; //Global Declarations of Variables … |
| | Hi ~ As you can see from the code below I am in school for programming. I have come across this homework assignment a few times on the site already however the requirements for mine are different. I cannot use arrays. Three functions - I only have two coded. The … |
 | I'm trying to write a program that outputs the cent symbol (¢) in Visual Studios 2010 and when I copy and paste the symbol into my text it outputs a completely different symbol. I've also tried using \u00A2 and I still get a different wacky symbol. What is the C++ …  |
 | I'm attempting to recreate the Unix shell program "todo.txt" using C++ on Windows. An example use of my program in the Command Prompt would be: [CODE]>todo /A "I like cheese."[/CODE] which would append the item "I like cheese." to the file "todo.txt". In my program, there is a line which … |
| | Good evening! So I've been trying to get my head around these classes and it's not going well. From what I've understand I've been calling functions correctly, but for some reason the members I'm creating are not being accepted. [CODE]class TheData { public: void InputData(); void DisplayMembers(); TheData(); ~TheData(); protected: … |
| | Hello again everyone, I have just finshed a neat little c++ program, but now I just realized that I don't know how to save the file as an executable so that I can use the program on any computer whether or not it has a compiler. Please Help. PS: I … |
| | Hello again: I am having trouble declaring my variables. Can you please show me what I am doing wrong. The homework problem ask for me to use the "if" statement also, kinda having a few problems with that. Please see the question and my code below. Thank you for your …  |
| | Hi I need help on this please.I have to write a void function that reads data from the following file:5 2 2 670.60 6 4 2 890.80 2 2 0 220.00 10 8 1 1340.60 10 4 3 1430.70 4 0 0 460.30 5 3 1 700.00 7 5 2 … |
| | Hello, I'm sorry for the bad title for this, but I honestly have no idea how to define this by few words. My problem is this, I need to read a bunch of data from a text file into an array, in the theoratical aspect, it's all nice and should … |
| | I am using getline to read a CSV file. The line it reads looks something like "1/24/2010 6:19 1/24/2010 6:59 Merrill - Valley Farms yhy 69 Vegetation 55" The getline works but, I need to be able to calculate time days between a date the user inputs and the date … |
| | Hi, friends Can anyone tell me more efficient answer of this question. Q:-As we all know when we any object by value to a function then a temperary object is created. I observe that the destruction of this object occurs differently in different situations like . 1):- If we call … |
| | given the following code [CODE]bool space(char c) { return isspace(c); } bool not_space(char c) { return !space(c); } template <class Out> void split(const string& str, Out os){ typedef string::const_iterator iter; iter i = str.begin(); while(i != str.end()){ i = find_if(i, str.end(), not_space); iter j = find_if(i, str.end(), space); if(i != … |
| | Hi, I'm having trouble figuring how to search for a specific element of a class in a list. I saw some examples of find() but they only show how to search for a string or an int. Another thing is modifying elements of a class. So let's say I have … |
| | Hey guys, The question on the homework is "Write a function that returns a count of the nodes that contain a value less than the parameter value." I was wondering if someone could point me in the right direction maybe with some pseudo code or something of the like. ive … |
| | Hi I have a GUI created using VC++. I want to read the value or content from a text box of another GUI in windows(dont have sourec for this GUI). Can you pleae suggest me how can i do this, please also point me to some basic tutorial or books … |
| | Hi can anybody provide me with the code for c++ programme for the famous game who wants to be a millionaire. Thanks |
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