49,766 Topics
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| | Hello, This is a general question, so, I don't think code is necessary. I have a basic question about buttons in Win32 API... (Solution in MFC is also OK!). I was doing some experiments in push buttons, using MFC... I can enable/disable a button as I wish, but, there is … |
| | I realize that there is another thread about this topic, where bitshifts are used, but I do not understand why my code is not working: #include <iostream> #include <bitset> using namespace std; int main() { bitset<5> b; int temp=0; for(int count=0; count<=10; count++) { temp=count; for(int check=4; check>=0; check--) { …  |
| | if anyone can check out my program below and see whats wrong, itd be greatly appreciated. my goal: user input a text file (i.e. data.txt) to open and read print the mssg within file to both console and text file (i.e. secret.txt) print the mssg as scrambled message (ASCII) my … |
| | i have to create a program that calculates how many weeks it will take to become a millionaire given an allowance of pennies. for example... 1st week - 1 cent 2nd week - 2 cents 3rd week - 4 cents 4th week - 8 cents 5th week - 16 cents … |
| | I've been wanting to use ADO in a c++ project i'm working on. I was having some errors on it, and have since reverted to ODBC but i'm finding it rigid, and frenquently frustrating to work with. I'm going back and giving ADO a shot again, but simple pasting the … |
| | I have to write a textual scenario for a gamming code . Should i write about the game or should i be writing about the code? |
| | write a program which takes student marks from user and it pass to student class object then that class decides whether the student getting first , second or third classes |
| | I have the next piece of code: [CODE=C++] vector<ChatSession> ssid; void SessionCreator( void *ch ) { vector<string> users; ... ... ... ChatSession cs; // put chat session objects in vector array for (int i = 0; i < (int)users.size(); i++) { const char *t = users[i].data(); char t2[30]; memcpy(t2, t, …  |
| | Problem 2: Write a program which will accept the price and description of three items. It will then display the total price of the three items as its output. Here is a sample output: First Item: ruler Enter price: P 32.50 Second item: notebook Enter price: P 25.00 Third item: … |
| | Hello, this is Metalcrunch. I've been learning C++ over the past days and I thought I'd make a calculator. So I looked over the existing code on the internet on how to make a calculator, understood it, then made my own from the very scratch. However, I'm having a few … |
| | I am starting some threads using AfxBeginThread and they work by monitoring a flag (sent via lParam) and once they find the flag is set, they return. However, once they do return, they aren't deleted and I get a memory leak. Shouldn't this method work fine and not cause any …  |
| | Why did Microsoft Visual C++ developers choose "Form1.h" for us to put all of our source code in, instead of a Form1.cpp? I find the Form1.h file to grow without bound; thousands of lines... in an "h" file! Walt |
| | Hi, How to set background image of CTreeCtrl? And also how can i set different colours to different items of CtreeCtrl? |
| | Hi all.. I would like to convert a hex to CString format.. I had try like below I shown, but failed to convert into CString format that I wish to.. Here is the example I tried.. CString sz; unsigned short test = 0xB0FF0000; sz.Format("%X", test); then I got sz = … |
| | whenever i compile in code-blocks for wxwidgets following error is generated but when i priview the wxform it shows the form . i really don't know what is this. ||=== banking, Debug ===| WxWidgets.org\wxMSW-2.8.10\wxMSW-2.8.10\include\wx\platform.h|196|wx/setup.h: No such file or directory| WxWidgets.org\wxMSW-2.8.10\wxMSW-2.8.10\include\wx\chkconf.h|103|#error "wxUSE_DYNLIB_CLASS must be defined."| WxWidgets.org\wxMSW-2.8.10\wxMSW-2.8.10\include\wx\chkconf.h|111|#error "wxUSE_EXCEPTIONS must be defined."| WxWidgets.org\wxMSW-2.8.10\wxMSW-2.8.10\include\wx\chkconf.h|119|#error … |
| | These are my examples: [code] /*int WriteFile(const char* file_name) { fstream file; try { file.open(file_name,ios.out); file << "67"; //file << "I miss you very much."; file.close(); } catch(exception& e) { cout << e.what(); return 1; } return 0; }*/ /*int ReadFile(const char* file_name) { fstream file; file.open(file_name,ios.in); if(file.is_open()) { string …  |
| | Hi I am 'trying' to get my head around multi-threaded programs. I have a working program (single thread) that uses a socket to listen on a particular port and exchange info with a client(s). The basic program structure is this (most declarations and error-checking removed for clarity): [code=c++] ... /* … |
| | Why does'nt the following code work? [code="cplusplus"] #include <iostream> class X { public: X() : m(0) { } virtual ~X() { } protected: int m; }; class Y : public X { private: class Z { void do_something() { std::cout << m << std::endl; } }; }; [/CODE] I get … |
 | hi! can someone give me some idea what kind of game is easy to do in c++? or kind of a system.. it is for our project..I'm thinking of doing text twist..can someone give some other idea? thanks very much!!! |
| | okay, i usually create beg programs and they often compile. for some reason, this one is not compiling at all. i cant seem to figure out whats wrong. my objective is to prompt user to open a file named "data.txt" have HELLO WORLD printed in a scrambled version to a … |
| | dear sir... i got a confusing of this... [code]ifstream is; Char c, temp_isi_file[100]; int i; is.open ("b.a"); memset(temp_isi_file,'\0',100); while (is.good()) // loop while extraction from file is possible { c = is.get(); if (is.good()) if (c==',') { //cout << temp_isi_file << ":" ; [COLOR="Red"]textBox1->Text = Convert::ToString(temp_isi_file);[/COLOR] i=0; c='\0'; memset(temp_isi_file,'\0',100); } … |
 | Hello, I was trying to create a Coalesced hash table by self teaching myself using various sources. I fixed most of the errors, but when i compile on either my visual C++ compiler or Dev -C++ both saids there is a undefine linker reference for the hash members in my …  |
| | i am in beg c++ and my instructor is asking me to find "some other combination that also does not work! Your loop should prove something similar for values other than 10 cycles, steps of 0.1, and a sum of 1." i found 1 combination, which is in my program … |
| | IT is defined in the back of my book but can't be found in my program. |
| | Here is my function that reads in a list of integers and doubles the size of the array if there are too many inputs. The current size of the array is 10. [CODE=C++] int* read_list ( int *list, size_t *list_size_ptr, size_t *array_size ){ size_t index = 0; int *new_list; while … |
 | Hello, I'm new here in DaniWeb, and this is my first post, but i'm learning [I]C++[/I] and before this i was reading some tutorials in the internet of the [URL="http://www.adobe.com/br/products/air/"][I]Adobe AIR[/I][/URL] development, but if Adobe AIR is so much easy to learn and [I]C++[/I] is a very flexible and good … |
 | console.cpp: [CODE="c++"] #include <iostream> #include <string> #include <vector> using namespace std; template <typename T> T #ifndef _DEBUG & #endif val(const T& x); class A { private: public: void f(); }; void A::f() { val(1);// deleting val solves the problem } int main() { new A; cin.get(); } [/CODE] general.cpp: [CODE="c++"] …  |
| | Hello. I am quite new to c++ but am working on translating a prime generator I have made over from c#. I have everything working well but have found that c# can output to file faster than c++ (by around 10%). This is once the 'working out' is done. Here … |
| | I've been programming in C++ for 20 years and finally got the size of my mains down. I've been programming in C++/CLI for about 20 days, and I'm back to my old buggy-boo, uncontrolled file size. In this case it is the Form1.h file. It has about 20 controls using … |
| | Hi, I have developed a lot console applications in C++ using Visual Studio Express and I am curious how much effort it would be to wrap them with a ultra simple GUI? Do I have to purchase MFC or code hunded of pages in order to accomplish this in C++ …  |
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