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I need to load a BMP into C++ and code a program to convert it into a JPEG. I have very little programming experience and am wondering what libraries should be used to efficiently convert an image in this way. Is there a library that will convert the BMP straight …

Hello, I am using a singleton pattern, which works fine. But when I decided to have a singleton of a nested class that is privately declared. [CODE]class A : public CSingletonTmpl<A> { class B : public CSingletonTmpl<B> { }; }; A* CSingletonTmpl<A>::s_Singleton = NULL; A::B* CSingletonTmpl<A::B>::s_Singleton = NULL; [/CODE] The …

I'm suppose to write a program that asks the user to enters numbers which will be stored in a dynamic array. Then once they enter their first set of numbers they are asked whether they would like to enter another number or remove a number from their list. You can …

There's mountains of guides for learning C++ and they all cover from hello world to pointers, but I never see any of them make a peep about making an actual window. They all stay in consoles and that's that. Why is this? Do most people never mess with API and …

I have a problem with this Window Procedure. in new versions of Windows OS, when I run the program, at first everything is painted & then paintings disappear (until the window receives the next paint message) [CODE] long _stdcall WndProc ( HWND hwnd, unsigned msg, unsigned wParam, long lParam ) …

is posible expalin my for what use %s in a code line [CODE]cmdLine.Format("\"%s\" \"%s\" %d %s %s %s", playerFile, moviePath, 10, cameraName, selectDate, movieID);[/CODE] i need now how works this code line

I was wondering how to make a program to open a specified file just by entering its location. What command do would i use to open it instead of double clicking on the file. Thanks in advance.

[CODE]#include <cstdlib> #include <iostream> using namespace std; int main(int argc, char *argv[]) { char a_char; int cu = 1; while (cu != -1) { cin>>a_char; cout<<"Is a digit!" << a_char << endl; } system("PAUSE"); return EXIT_SUCCESS; }[/CODE] When I input a132, the output is: [B]Is a digit!a Is a digit!1 …

For example if I have this int type variable X that increment from 1 at the beginning to 10 when the program ends, how to open and write to 10 different files (data1.txt,data2.txt,data3.txt....) everytime X increments? I've tried with the following but it didn't work: [CODE]string filename ("data"); int X; …

1>c:\documents and settings\joe\desktop\spring 2010\csc 212\hw\hw #5\rec_fun_test.cpp(25) : error C2065: 'outs' : undeclared identifier i keep getting this from one of my codes it is from a prototype void binary_print(ostream& outs, unsigned int n); is there a #include needed for that or something???? please help!!!

This program is to accept input from a user to select there own username and then a password which will be compared to the password KazzyB, and give an output saying Welcome, The only problem in it is a single error KB.cpp(18) : error C2447: missing function header (old-style formal …

im trying to add i think you call a random string picker heres what i have added it too [CODE]#include "stdafx.h" refimport_t * ri = (refimport_t *) NULL; refexport_t * re = (refexport_t *) NULL; refimport_t * o_ri = (refimport_t *) NULL; refexport_t * o_re = (refexport_t *) 0x0068A1E8; cg_t …

Why do I have do use the Seekg()-function two times in a row to make it work? Code: [CODE] fbin.seekg(0); //jump to record at start of file fbin.seekg(0); //jump to record a second time (else it won't work) fbin.read(name, sizeof(name)); //read from data field 1 fbin.read(reinterpret_cast<char*>(&age), sizeof(int)); //read from data …

My goal in this program is to solve for the 12 unique solutions for the 8 queens problem. All the below posted is my code. I believe that my findSolutions function is capable of finding the first solution but I have a couple issues from that point. If the user …

fatal error C1075: end of file found before the left brace '{' ANY IDEA WHAT MAY BE MY PROBLEM??

My program keeps crashing when not in debugging mode. So now i'm debugging manually, or well, log everything to find where it is crashing [code=C++] Oldproc = (PROC)SetWindowLong(Childs[1], GWL_WNDPROC, (DWORD)EditProc); cout << "Oldproc\n"; SetFocus(MainWnd); cout << "SetFocus() Done\n"; cout << "DIRECTX:\n"; DirectX = new DIRECTX(); // Creating DirectX cout << …

[CODE]# include <stdio.h> int abc(int & x) { return x; } int main() { int y = 0; abc (y++); // error here return 0; }[/CODE] error is error C2664: 'abc' : cannot convert parameter 1 from 'int' to 'int &' But if i call the same function as abc …

Example: [CODE] class foo { public: void DoNothing() { cfee.AddNothing(); } }; class fee { public: void AddNothing() { int a = 0; a += 1; } }cfee;[/CODE] Is there a way to call a function in a instance of a class that was declared after the creation of the …

7. Write a simple C++ program that performs addition, subtraction, multiplication, division, exponentiation, base-10 logarithm, and factorial operations. The program should start with a menu letting the user to choose one of the eight operations the user wants to perform. A sample menu is given below (hint: use loop to …

i want to develop a c++ program that may take a visual input like a graph and then manipulate it to find whether its a planar graph or not....i am well versed with the algorithm to do this...just want to know that how can I read the input from a …

I've written a few simple C++ programs in Dev-cpp... Now i want to run the second program inside the first in case it satisfies a condition. It then geneerates a text file from which new values are got. Is it possible to do that ? I'm just a beginner and …

Hello, I am trying to implement a for loop which fills (and re-sizes) a temp matrix (temp_data) based on a column value criteria from another matrix (data). The data matrix comes from a text file which has the format: a b c d e f g h 1 i s …

My problem is not serious, its just a question about the most beautifull solution. Maybe somebody has a better idea! I have a mathematical class having some numerical functions. It is convenient for me, and speed up the program, if I introduce a member array called "memory", and store the …

Hello. I am quite keen with the win32 api but am tired of the standard windows visual styles (XP/Vista/7) and am wondering how to create my own. Have googled but not found any information, just point me in the right direction. Thank you very much.

Hello! Im having a problem with the following code structure. The code compiles without problems but when i start the program i get an "exception: __non_rtti_object at memory location...". In the constructor of the model-class i still can get the object information of the node-class through the base pointer. Once …

I'm trying to understand how static ints work within classes, and I've fallen on some code that I don't quite understand how the answers come out to be what they are showing. [code] // static members in classes #include <iostream> using namespace std; class CDummy { public: static int n; …

i am a University student pursuing a degree in computer science, it seems as though i really suck at validating things... well I just don't really get the concept i know its conditions but i when i try one it always seems to crash my program I've been trying to …

Hi @ all, b4 things get serious. :icon_smile: Im using MFC with VCPP 6. I have a simple dialoge based app. Im using a triggered event with which I want to update the content of a CEdit box. The ASSERT of IsWindow fails because m_hWind = 0, I figure this …

ive got a xml file like this: [CODE] <?xml version="1.0"?> <orders> <customer> <order_num>6656</order_num> <name>jon doe</name> <street>123 fake st</street> <city>Beverly Hills</city> <state>CA</state> <zip>90210</zip> </customer> <customer> <order_num>1337</order_num> <name>bob johnson</name> <street>1232 something ave</street> <city>Petaluma</city> <state>CA</state> <zip>94952</zip> </customer> <customer> <order_num>5643</order_num> <name>bill story</name> <street>1st ave</street> <city>Beverly Hills</city> <state>CA</state> <zip>90212</zip> </customer> <customer> <order_num>4533</order_num> <name>tom hutchinson</name> <street>214 …

Hi there, I'm am trying to write a recursive C++ function that writes the digits of a positive decimal integer in reverse order. [code=C++] #include "stdafx.h" #include <stdio.h> #include <iostream> #include <conio.h> #include <cstdlib> #include <math.h> #include <string> using std::string; using namespace std; int reverse_num (int number, int m) ; …