51,593 Topics
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| | Hi All, I am trying to create a image text detection program. The program is up and running, and I can distinguish between text and non-text using laplacian based method with an acceptable accuracy. However, the problem is that I need the program run with the speed > 100 (images/s), …  |
| | hey guys! ive spent another 3 hours trying to find out what is wrong with my code! i tried many ideas that came into my head but they didnt work :( here is my code.. ive narrowed my problem and shown where it could possibly be by enlarging and making … |
| | Hey guys! i was wondering how some games and software have image files that are accessed from .dat and/or .bin files! can i do this for a C++ program? i tried googling but had no hope so i posted here.. i would also like to know how i can make … |
| | So I've created an event driven architecture for my current program. I want each new event to have a number generated automatically with a function so I don't have to worry about overlap of id's and referencing is easy. [CODE] class Event { protected: static int get_event_id(); public: virtual int … |
| | I want to learn basic web query vc++.I googled around and found that libcurl was the library needed.I have downloaded the necessary files from curl.haxx.se .I do not know how to use these files and make the actual header file and then actually include it in my project. Any help …  |
| | Hello, I just downloaded the [url=https://mattmccutchen.net/bigint/]big integer library[/url], and I want to use it in my prime number checking program. I downloaded the zip file and got a bunch of .cc and .hh files. I need to know what to do with the files, where I should put them, and … |
| | Hi everyone, I was wondering if anyone could provide a bit of help, I need to store an integer value that is 20 bytes in length - I know theres an int32_t and int16_t, but I can't seem to get an integer stored that is only 20 bytes!! I've also …  |
| | I am trying to make a program that will list all the National Heroes of our Country. We used the switch statement. [CODE]#include "stdafx.h" #include "iostream" #include "stdio.h" #include "conio.h" using namespace std; int main() { int choice,desc; char repeat; cout<<"\t\t\t\tPhilippine National Heroes\n\n"; cout<<"[1]Dr.Jose Rizal\n"; cout<<"[2]Andres Bonifacio\n"; cout<<"[3]General Gregorio Del … |
| | I can not run this program in my C++ compiler(Dev c++). [CODE]#include <iostream.h> #include <conio.h> #include <graphics.h> #include <ctype.h> #include <stdlib.h> #include <stdio.h> int main() { // clrscr(); int gd = DETECT,gm,errorcode; //Requesting auto-detection. //Initializing graphics and local variables. initgraph (&gd, &gm, "d:\\bc3\\bgi"); //Path where graphics drivers are installed //Read … |
| | I have a class (DataBuffer) that has functions that return objects of DataBuffer but when I'm calling other class functions from within the function that returns the object of DataBuffer, the internal values are not being set after the function returns. So, basically (if you made it through that first … |
| | Hey guys! i have yet another problem and cant find a way around it :O i have this function in the class Platform [CODE] void Platform::set_clips(SDL_Rect platClip[], int i) { for( int j = 0; j < i; j++ ) { platClip[j].x = 0; platClip[j].y = 0; platClip[j].w = random_number_w(); … |
| | hi im trying to make a "settings" that they are on c++ and saving on text documents here is the code [CODE]#include <iostream> #include <fstream> #include <string> #include <sstream> using namespace std; int main(){ fstream first("firstt.txt");; fstream File("file.txt"); string firsttime; string blah1 = "enable"; string blah2 = "disable"; getline(first, firsttime); … |
| | [CODE]#include<iostream> #include<cstdlib> #include<conio.h> using namespace std; int main() { int i,j=0; cout<<"1"; for(i=1;i<=55;i++){ if(j>12) break; else{ if(i%2==0||i%3==0||i%5==0) j++; } } getch(); return 0; } [/CODE] This is my code .I want to print the numbers whose only prime factors are 2, 3 or 5. The sequence 1, 2, 3, 4, …  |
 | Hey Guys, I was just making a program with music running in the background and whenever I tried to run the .exe file of the program, the music wouldn't play. Extra Info: I'm running Windows 7 and Visual Studio 2010 Express. Here's my code if you need it...(beware: it is … |
| | hii,i have to know about performance measurement and improvement library.itz our project topic for btech.plz give an idea about the topic. content:how to improve a c++ program by calculating fn call,fn time,memory allocation and save pointers |
| | Hi, Since small object allocation in heap is bad, I am just wondering the range of the object size that is defined to be small. Regards, Michael |
| | [code] #pragma comment(lib, "crypt32.lib") #include <stdio.h> #include <windows.h> #include <Wincrypt.h> #include <iostream> #define MY_ENCODING_TYPE (PKCS_7_ASN_ENCODING | X509_ASN_ENCODING) //this is keylength bit shifted, here we have keylength of 1024bits hence 1024 << 16; #define KEYLENGTH 0x04000000 using namespace std; int main() { DWORD dwFlags = 0; HCRYPTPROV m_hProv; PBYTE pbKeyBlob; DWORD … |
| | hey guys! i am trying to make an algorithm that generates random numbers within a given range ( this range may differ ) i have tried using rand() but i dont like it because the best seed is the time and it doesnt generate numbers random enough. thing is i …  |
| | I want to make a c++ program that can open an image that is in any of the major formats (jpg, gif, bmp, png) and has any size and I want to resize it to a specific size (no, I don't care if it looks stretched) and save it to … |
| | i'm stuck on a program that i am working on in class. your suppose to open a text file with names of shapes and certain lengths of it's sides. it then calculates what it's area/perimeter/volume/circumference and so on and so forth for each shape named in the text file. i … |
| | hi everyone, I need to write a piece of code that sort an array of double values named distance[i] in the following code. The counter i is the index for another array as well therefore I don't want to change the order of the array. I got hint from this … |
| | As in, if you had an if statement, for example: [CODE]if(endProgramChooseType != 'y' || 'Y' || 'N' || 'n'){ (code for exiting program) }[/CODE] How would you do that in a switch statement? without doing [code]case 'a': case 'A': case 'b': case 'B': case 'c': [/code] etc. |
| | Hello altogether, I am supposed to work through a project written in C++ and QT for Windows platforms. Now I am not an expert in window-related stuff. I installed MinGW 3.4.5 and QTSDK on Win XP SP3. I am using the tool "qmake" to create a makefile with all dependecies … |
| | Hello all amatuer user of C++ please help me recode this the question is this: The function String_To_MDY() assumes the user correctly enters the date in the form mm/dd/yyyy. Recode this function to include the following test. Test the string ensure the user enters two digits, followed by a slash, … |
| | Hey all, I've been programming an ISBN system of sorts and I'm a little stuck (again). I want to output my linked list to a text file, so I setup the code like this: [code] void saveList(char fileName[40]) { for ( list< Publication* >::iterator it = pubList.begin(); it != pubList.end(); … |
| | hey guys! im just so frustrated with this error .. more like a bug though heres a link to all my code on google docs [URL="https://docs.google.com/document/d/1JxrZtbBJ8RPpMvuXvi767Y4gBSiXmKauNu7RApHNVbg/edit?hl=en_GB"]Source[/URL] the bold and enlarged stuff is whats causing the bug problem is when i add [ICODE]void Platform::set_clips(SDL_Rect platClip[], int i)[/ICODE], i guess something in … |
| | I'm currently developing a game (And no, just because that's the case doesn't mean this belongs in game development), and I've run into a problem. Basically, I need to generate a random number. The number needs to stay the same after it is generated once. The code is in an … |
| | I want to print a pyramid like this..... ***** **** *** ** * This is my code.....[CODE]#include<iostream> #include<conio.h> using namespace std; int main() { int i,j; int b; char* sp=" "; cin>>j; for(int a=j;a>=1;a--) { for( b=a;b>=1;b--) cout<<"*"; cout<<endl; for(int k=1;k<b;k++) cout<<sp; } getch(); return 0; } [/CODE] But it … |
| | Hello all I have a project written in C + + On the platform Windows XP I want to convert the text to voice How can I do that? ? Are there functions In audio/ sound libraries convert the text to voice??? I hope you help me |
| | I get this warning and I can't seem to figure out what it is referring too (it repeats this exact one ALOT when i have very little code). I'm trying to implement boost archive into my project as it allows less code to be written when serializing classes. [CODE] c:\program … |
| | So I've never worked with percentages in c++ and I was wondering how to incorporate into a program I'm making for a game so see what the chances are that an item will reach a certain level depending on the chance of success for each different level. Here's what I … |
| | I've recently started using PDCurses in a C++ game I'm working on. When I compile the program on my own machine (windows) and run the .exe, everything works as it should. When I take that .exe onto a different computer that doesn't have PDCurses and I try to run it, … |
| | Hey all, I'm attempting to use an STL List to store a list of objects. Now I realise it's quite trivial to store a list of objects of my own definition. My real question is, how do I fill the list with objects that inherit from a base class. E.g. … |
| | When I ask the user to enter in a number of games, Say I wish to do 5 fights. It runs the fight, then stops after 1 player wins. It doesn't loop back around, DO health levels need to be reset? I also think I did my coin flip wrong. … |
| | I am looking for a PKC library, I would like one that is decently fast. I have looked at RSA, but I cannot seem to find any decent libraries that would work. I will be encrypting packets that are sent out via UDP, however one client will have the private … |
| | hey guys i got one more question :O i have this code for a class function [CODE] void Platform::set_clips(SDL_Rect platClip[], int i) { for( int j = 0; j < i; j++ ) { platClip[j].x = 0; platClip[j].y = 0; platClip[j].w = random_number_w(); platClip[j].h = 5; } } [/CODE] is … |
| | Hey guys! i just started using SDL engine to make a 2d game . This is the code ive got so far, you can view it online on googledocs via this link: [URL="https://docs.google.com/document/d/1S1upv5FxT3TvZsvhaZ1nFb39aUz-AVl7MhqP8zSZ4DM/edit?hl=en_GB"]CODE[/URL] i have made bold the code that causes the problem. when i do [ICODE]apply_surface(0, 0, stick, screen, … |
| | Hi, I have an URL like below. When typing that in explorer, that will let you download a .csv file. I simply wonder how you can do this in code instead. Reach the below URL and download this file to C:/ ? [code] string getURLfile = "http://ichart.finance.yahoo.com/table.csv?s=MSFT"; string savePath = … |
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| | So i just started learning SDL and came across "Event driven programming", just wanted to be sure if i understood the tutorial correcly. So lets say by adding: [CODE]SDL_Event event;[/CODE] i add lets say a container that keeps track of every event i do? After that i start using: [CODE]while … |
| | hello sir, actually what i want to do is to print a series of characters using outtextxy() function in c++ graphics. say my array contains '1','2','3','4','5'. using a for loop i want to print them at diff positions on screen. char c[]={'1','2','3','4','5'} int i,j=100 for(i=0;i<5;i++) { outtextxy(100,j,c); j+=100; } but … |
| | hello guys, The file is not getting deleted in the function modify for some reason.....pls help!!!!!! pls do look at this code [CODE] #include <iostream.h> #include <conio.h> #include <fstream.h> #include <stdio.h> #include <iomanip.h> #include <string.h> #include <stdlib.h> #include <ctype.h> #include <process.h> #include <math.h> #include <windows.h> class car { int no; … |
| | Hey all, (Skip down till "Question:" if you're in a rush) Context: I'm coding on an audio application which involves storing buffers of audio. I'm currently using a [ICODE]std::vector<float>[/ICODE], as a member of an [ICODE]AudioBuffer[/ICODE] class. These [ICODE]AudioBuffer[/ICODE] instances are held in another class [ICODE]ResourceHolder[/ICODE]. In the "process" callback (where … |
| | This is part of a cinema project code that my friend did. I understand most of the other parts, but when I came to this part, I am completely lost. Can someone please explain this to me line by line please. Thank You. If you need the complete code to … |
| | This is my code: [CODE] stringstream str_number string description while(!str_number.eof()) { str_number >> str_description; if (str_description.length() < 1) { break; } description = description +" "+ str_description; }[/CODE] My problem is that if the description is more than one string, the last string is repeated twice. For example if the … |
| | This is my code: [CODE] for (i = 0; i < date.size(); i++) { str_date << date[i]; str_date >> newDay; str_date >> newMonth; str_date >> newYear; apptDay.push_back(newDay); apptMonth.push_back(intMonth); apptYear.push_back(newYear); }[/CODE] My problem is that the first date[1] gets saved nicely, however the second round of the loop it all goes … |
| | How can i sort the Last Names?? i used the Last Name to be the head so the properties or some info will follow...need help bum bump [CODE]#include <iostream> #include <string.h> #include <fstream> using namespace std; typedef struct Student { char Fname[50]; char Lname[50]; char age[50]; char ID[20]; struct Student … |
| | I have been given a question to write a program to read a number x from the user and then print the value of ln(1+x). I have been given the following equation to perform the calculation: [CODE] 1 2 3 4 5 6 100 ln(1+x) = x x x x … |
 | [CODE] //A c++ program that calculate and print parking charges #include <iostream> using namespace std; #include <iomanip> const double minimumFee = 7.00; const double hourlyFee = 1.75; const int numOfCustomers = 12; const int numOfMinsPerHour = 60; void inputAndValidate(int&,int&,int&,int&); void convertToMinutes(int&,int&,int&,int&); void convertBackToTime(int&,int&,int&); double calcCharge(int,int); int entranceMinutes,exitMinutes,entranceTimeInMins,exitTimeInMins ; int minutesParked,parkedMinutes,entranceHour,exitHour,parkedTime … |
 | [CODE]union _Test { unsigned char keydata[4]; struct _Member { unsigned char a; unsigned char b; unsigned char c; unsigned char d; }Member; }Test; Test.keydata[4]= { 1, 2, 3, 4}; [/CODE] error on line 12: expected expression before '{' token. If I declare without union, [CODE]const unsigned char keydata[NUM_KEYS]={ 2, 1, …  |
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