51,593 Topics
 | |
| | Can anyone tell me what is the main purpose of Dll? As we can get the data from Dll, can we put the data in Dll? I am not talking about code, talking about single Dll. If you know about Dll then please share your knowledge.. |
| | I have a document/view aplication that opens a bitmap I use the following OnDraw override to draw the bitmap on a window and OnOpenDocument to opening the image from file The bitmap handle ( HBITMAP bmaphandle ) is taken from the Document object that does LoadImage in it's OnOpenDocument method … |
| | I am working on a small project that contains a vector of base class pointers and my question is, is there anyway to tell which derived class is being stored in the container. for example... we have a base class named creature and two derived classes named, alien and monster. … |
| | How can I use C++ programme from vb.net thanks in advance |
| | I'm trying to input these letters into and array using the following an tex char Letters[26] = {"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"}; my complier has an error reading too …  |
| | I'm trying to input these letters into and array using the following an tex [TEX]char Letters[26] ={"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"}; [/TEX] my complier has an error reading too … |
| | I'm getting ready for a test in a couple days. I'm trying to find some decent well commented examples of programs that use polymorphism and inheritance (public,private,protected). Also it was mentioned about special circumstances on using const for a variable within the say private area of a class. Any assistance … |
 | Hello all, greetings I wonder where I can get API for afore mentioned DLL files? I need to use them in small app for personal exercises and needs API docs Also would like to know if there is anyone acquainted with Ctypes? Thanks all |
| | Hey guys :) i'm new at programming in C++ and i'm stuck at an assignment that im suppose to write I need to Write a string function that gets a word at random from a file and returns it as the value of the function. It should use a random …  |
 | Hi, I'm having some frustrating issues with char/strings. I have a function which returns an unsigned short integer, the unsigned short integer is ALWAYS 1 char long. So if I try this code: [code] number[2] = function(); [/code] So, number[2] should give me the number I want, however, it gives … |
 | i hope you can help me regarding computing the running time of a program in C++ environment the specification is like this: i will make a program that can read another file which is a program too in C++. I would like to compute the main() alone of the file. … |
 | I want to be able to bring the single instance class into a function of another class without having to take each seperate little variable from the class and inject it in, can I just do something like void Yeah(class *The Class) and then pass the class in easily??? Or …  |
| | i have an array weights[16][60] 16 rows of 60 columns if you are changing indiviual elements it goes from weights[0][0] to weights[15][59] right? see if im using them in a loop for instance [CODE]]for(int i = 0; i < 16; i++) {[/CODE] so each element is used would it be … |
| | Write a client-server application program to design a chatting room implementation using sockets to communicate between a server and clients. For this project, the followings are minimal requirements. Registration phase. 1.Each client will register to the server for joining a chatting with its own nick name. 2.One client will open … |
| | If you make a vector of a class of no designated size, as you reserve spaces inside the vector will it just make a default instance from the constructor?  |
| | this is my sub proceedure [CODE]/****************************************************************************** * * Name: patpixselect * Parameters: none * Returns: patpix[] * Globals: none * Description: database for which pixels for which pattern *****************************************************************************/ int patpixselect (int pat); { float patpix[9] ; // array for pixels in patterns if (pat == 1) { patpix[0] = … |
| | I new to a C++, I downloaded the Microsoft Visual C++ compiler. I copy/pasted a simple program. [code=cplusplus] #include <iostream.h> #include <stdlib.h> int main() { cout << "This is my first C++ program." << endl << endl; system("PAUSE"); return EXIT_SUCCESS; } [/code] The compiler has an error that reads Cannot …  |
| | [code=cplusplus] #include<iostream.h> #include<malloc.h> #include<stdlib.h> struct point{ float x; float y; point *next; }; point * create(int count) { point *p,*h,*s; h=(point *)malloc(sizeof(struct point)); if(h==NULL) { cout<<"Malloc memory error"<<endl; } /********************************************Init head**********************************/ h->x=NULL; h->y=NULL; h->next=NULL; /********************************************Init head**********************************/ p=h; for(int i=0;i<count;i++) { s=(point *)malloc(sizeof(struct point)); if(s==NULL) { cout<<"Malloc memory error"<<endl; } cout<<"cin … |
| | hi everyone the program below is a function that should give the number of items greater than a number entered by a user.(unsorted list ADT) ex: input 3 unsorted list contains: 2 6 8 1 5 9 8 output should be 5 here is my try by there are alot …  |
| | Hi, the following code works fine, that is, strcpy effectively copies the whole string on temporal to word. [CODE=cpp] char word[20]; char temp[ ] = "hola"; cout << temporal << endl; strcpy(word, temporal); cout << word << endl; [/CODE] However, if I try to use the heap to store the … |
| | sorry if this a bit of a pain and there are other threads to read about this but can anyone explain how arrays work a bit, i need a quick refresher course. like how they work, are they like the equivalent of stacks in assembly language? and say you set … |
 | OS: windows vista 32 bit. I was searching the web for a compiler which has lesser numbers of issues and with good written help available. I am thinking of vc++ or blood shed dev c++ Then I came across this term ANSI ..... Is it necessary for a compiler to … |
| | i have two questions,please dont tell me that i violate dani web ruls because of my long questions thank u. one: i wrote a program in c,and i compiled it(in borland c),it had no errors(so far so good) then i run it and errors such as: linker error:undifined symbole_line in … |
| | well im doing a program that should output: A BB CCC DDD EEEE FFFFF using 2 loops. im on Dev-C++ 4.9.9.2 im all new 2 this an this is what i got so far, some help will b great to finish this =] [code=cplusplus] #include<iostream> #include<iomanip> using namespace std; int … |
| | Hello, I'm experiencing a little problem with what I'm trying to do: I've created a large number of buttons with Photoshop, these however, already look like buttons, and are rounded. However, when I put them on a BUTTON control the button looks ugly because it has another button on it. …  |
| | I was trying to write a program that takes an input from a file which is located in Desktop not the default directory where the program is saved [code] #include <iostream> #include <fstream> #include <stdlib.h> using namespace std; int main() { ifstream fin; string str="C:\Documents and Settings\shankhs\Desktop\ccs\Assignment CCS.txt",temp=""; cout<<str<<endl; for(int … |
| | Well see the above code [CODE] int a = 10; int* p1 = &a; int* p2 = p1; // Copies the address right?[/CODE] But what happens here? [CODE]char* str1 = "Hello"; char* str2 = str1; // What happens here[/CODE] I tried this code and when I modified str1, str2 remain … |
| | i cant seem to find what is wrong with this piece of code: looks good to me-but my hw says it has an error in the code. [code] struct TwoVals { int a = 5; int b = 10; }; int main() { TwoVals varray[1]; varray.a[0] =1; return0; } [/code]  |
| | [code] transactionInfo = date + " - " + _strtime( time ) + "New Customer - 1001 - Olly"; [/code] Ok so I've been trying to find it everywhere in C++ reference guides but it seems I can't do the above ^^ (says I cannot add 2 pointers). date is …  |
| | I have to make a project today itself on turbo c++ :- It should have OOP. Classes. and use of database i.e I/O on text files. Can anyone suggest a unique topic and I will be asking help related to the same here =) |
| | Hi, I have these errors: --------------------Configuration: IP_devllink_06 - Win32 Debug-------------------- Linking... IP_devlink_06.obj : error LNK2001: unresolved external symbol _DLClose@4 IP_devlink_06.obj : error LNK2001: unresolved external symbol _DLOpen@24 Debug/IP_devllink_06.exe : fatal error LNK1120: 2 unresolved externals Error executing link.exe. IP_devllink_06.exe - 3 error(s), 0 warning(s) The probloem is that I am … |
| | can u pass template class objects as parameters to friend functions of the same class?? i tried sumthin like... [code=cplusplus] template<class T> class array { T a[10]; int n; public: friend istream& operator>>(istream&,array&); friend ostream& operator<<(ostream&,array&);}; istream& operator >>(istream& din,array& b) { din>>b.n ; //size of array for(inti=0;i<b.n;i++) din>>b.a[i]; return(din); … |
| | |
| | Hi every one. This is my first Post. I am an electronic engineer and currently enrolled in MS Embedded Systems Engineering. In my project, i have to interface an Altera DE3 board to a windows based PC and achieve a data transfer rate of 100+ Mbps usin USB port. The … |
| | Could you please help me with the source code for the following Task: [IMG]http://www.2and2.net/files/492254f5267f5.png[/IMG] |
| | hi, I'm a beginner as far as c++ and i need help on writting a program. [B]Given[/B] sin x = x – (x^3/3!) + (x^5/5!) – (x^7/7!) + (x^9/9!) ….. where x is in radian. cos x = 1 – (x^2/2!) + (x^4/4!) – (x^6/6!) + (x^8/8!) ….. where x … |
| | Hello. I'm having 2 difficulties... 1) I am trying to print out a string with spaces... Functions used: addSong and printSong For ex: (This is not the whole code...I'm pointing out the functions that it is used in) [CODE=Cplusplus] void addSong(mp3Type*& first, mp3Type*& last) { cout<<"Song title: "; cin>>songTitle; getline(cin,songTitle); … |
| | I am needing some help with my CS114 project. I am not expecting people here to do it for me just to help me with it. The project is to do a Sudoku game with a 2d array (9x9) and read in a txt file that the instructor has supplied. … |
| | |
| | I do not want a negative number input for radius, length, width, base, height. How would I do this. My code is below. It should be pretty self explanatory. Thanks. [CODE][code=syntax] #include <iostream> #include <cmath> using namespace std; int main () { double const pi=3.14159; int radius, length, width, base, … |
| | Hi. I have written a small test socket program that uses a background thread that accepts tcp connections and adds them to a connection list that is accessed by main(). When a connection is opened, then later closed, recv() is called (see line highlighted in code below), which throws an … |
| | [code=cplusplus] int main() { string name; cout << "Please enter the filename of the encoded message:"; getline(cin,name); ifstream infile; infile.open(name.c_str()); if (infile.fail()) { cout << name << " fail to open." << endl; exit(1); } cout << name << endl; cout << " File successfully opened" << endl; string buffer; … |
| | |
| | hi, I get a crash as "Unhandled exception at 0x5f4335bb (MFC42D.DLL) in VMFirewall.exe: 0xC0000005: Access violation reading location 0x00000000." in D:\Program Files\Microsoft Visual Studio 8\VC\atlmfc\src\mfc\appmodul.cpp in _tWinMain() funtion at call of AfxWinMain(hInstance, hPrevInstance, lpCmdLine, nCmdShow); This crash is in both debug and release....i have tried ignore of mfc42D.lib and mfcs42d.lib....but … |
 | My dev-c++ compiler is telling me that ios::noreplace is not a valid member of std::ios. Why? |
| | Well, this is for the same assignment as my last post. It's just a simple implementation of a bunch of Algorithm functions. It throws a runtime exception at the end saying the stack around the b variable was corrupted! I commented out all the lines with that use the b … |
| | I'm working on an assignment for school where my teacher wants me to convert each member of an array of a class if it's int member is greater than 300. I can make it work for the first value of 300, since that's what find_if returns. But how do I … |
| | Hello, I am really new in the C++ environment. As part of a video project i want to compare a master binary mpeg4 file whose size is about 20 meg bytes size to numerous video ( ex up to 30) mpeg4 clips of appproximately 1 meg each. My aim is … |
| | int& fun(){ int a = 10; cout << &a << endl; return a; } int main() { int& r = fun(); cout << r << endl; cout << &r << endl; return 0; } outputs of the code above are: 0xbf8567b4 10 0xbf8567b4 and when i change `int& r = … |
| | hi everyone i am new to C++ need help; //Write a program that for 5 books with this atributes //books name //authors name //publishing year //book price to be selected only the books from the same year typed by the user(using structures) | |
The End.