49,766 Topics
 | |
| | I am writing a program that needs to get pixels from a window, and search for a certain range of pixel colors. I have been using getPixel, but that method is too slow for even 800x600. Does anyone know a different method/s? The window uses Direct X, if that helps... |
| | I am using visual c++ version 6, I have compiled the systemC library, then creates a new project contains multiple files then I try to build it but the building failed due to an error called "error C2679" and this the error message: "d:\systemc-libraries\systemc-2.0\systemc-2.0\src\systemc\communication\sc_signal.h(234) : error C2679: binary '<<' : … |
| | Hello there! can anybody here point me to any GUI programming in Linux tutorials. Been googling around but no good hits. Thanks. |
| | Hi, I am struggling with the best way to twiddle a large number of bits. What I have is a large amount of binary files(~100) in my directory that I need to do post processing on. I want to compare all the bytes in each file and see when the … |
| | How do you close a QTabWidget? I have the code but when I click on the close button nothing happens. |
| | I am getting an error C2664: 'F_Ite' : cannot convert parameter 1 from 'double *' to 'double'.Will please anybody help me from this problem.I am new in C++. Thanks [CODE]#include<iostream> #include<cmath> #include<algorithm> using namespace std; // you should not use this statement. void F_Ite(double,double,double,double,double,double); // never ever declare global data … |
| | I am running into a baffling problem with my code. I am supposed to write a program to average the test scores for an entire class of students. In each case, the student should have taken 5 tests. You are to average the 5 tests. The program run should look … |
| | This is what I need to do: Use a single-subscripted array to solve the following problem: A company pays its salespeople on a commission basis. The salespeople receive $200 per week plus 9% of their gross sales for that week. For example, a salesperson who grosses $5000 in sales in …  |
| | [code]double F_Ite() { //Main Function Start //Locally Data_type Declaration And Initialization : int numElement =20; double *a,*b,*c,*d,*Fc,*Fd; a = new double[numElement]; b = new double[numElement]; c = new double[numElement]; d = new double[numElement]; Fc= new double[numElement]; Fd= new double[numElement]; for(int k=1;k<(NI-1);k++) { //Main 'for' Loop Start std::cout <<"\n"; system("pause"); std::cout … |
| | Hi I have a pretty novice question. Where do I place (install?) a libcurl library in order to using when I code. For those who may not know, libcurl is a library, I think :P, which in my case I hope will allow me to read a webpage [URL="http://www.daniweb.com/forums/thread156929.html"]link[/URL]. [URL="http://curl.haxx.se/"]Link … |
| | Hi every body!! I have a Question that I could not Find any answer For it:icon_cry: How Can I see The implementation Of the Build in classes in C++ class int , float , string , ostream ,.....and So on??? Pleaseee give me an answer??:icon_redface: Regards,, Sara .  |
| | Im new at C++ and am trying to teach myself. I want to ask the user of the program why they are feeling a certain way, but not do anything with the sentece. So its like -how are you feeling?- user -good- -why are you feeling good?- user- blah blah … |
| | heloo any body i try to wrote a slr parser with c,but don't correctly work,my code is : [code=c] #include<stdio.h> #include<ctype.h> #include<conio.h> #include<stdlib.h> #include<string.h> #include<iostream.h> #define epsilon '^' char prod[20][20],T[20],NT[20],c[10][10],foll[10][10],fir[10][10]; int tt,tnt,tp,a; int follow[20][20],first[20][20]; void first_of(char); int count(int j); void rhs(int j); void read_tnt(); void read_tnt() { cout<<"For SLR parser: … |
| | Hello I am doing an C++ exercise and the task is to write a program that prints all INT values between 32 to 255 and the corresponding ASCII characters. I have declared the variables to store the ASCII character and the INT like this: [code] unsigned char unchar; int i; … |
| | I can't figure out how to write a program that can play multiple sounds at the same time. I tried doing some pretty complex things with the Beep function but I finally gave up. Is there any function or something to that extent out there that will let me play … |
 | Im kind confuse about how PostQuitMessage works.. Im using like this: [CODE=cplusplus] case WM_CLOSE : DestroyWindow( hWnd ); break; //send WM_DESTROY case WM_DESTROY : CleanUp(); gsp_quit = true; PostQuitMessage( 0 ); //send WM_QUIT break;[/CODE] That is on my WndProc function. My message loop is like that: [CODE=cplusplus] while ( !gsp_quit … |
| | I'm having trouble using my homemade .h files in my multi-source projects. If I I only include the .h in one of the sources I can't use it in the others. But if I include it other sources it's considered redefining the include and it won't compile. Other .h's besides … |
| | I hope I am postin gin the right spot.I am new to this site. I need help with sorting the grades, please. Can anyone help?Thanks [code=cplusplus] include<iostream> #include<iomanip> using namespace std; int main() { double *grades; //point used to point to an array that holds grad double total = 0.0; … |
| | Hello to all, as you all know FFT algorithm has many variation in terms from its pruposes. My requirement of FFT is integer multiplication and polynomial evaluation. I looking for good reference about the topic. If you have any, please post it here. Thanks. |
| | well my friends I tried to solve a problem and it was about allowing the user to enter a paragraph , then the compiler'll count and display the number of typed words . welll I easily solved it like this -------------------------------------------------- [code] #include<iostream> #include<string> using namespace std; void main() { … |
 | HELLO; see this quastion , i tried to solve it , but there is sometjing wrong , i do not know it because no errors accur ! [COLOR="Green"]A 5 letter word x is hidden in a string y such that the first two letters of x are the first two … |
| | hello guys i recieve errors when compiling my code [code] #include <iostream> #include <fstream> #include <string> int main() { std::string firstname, lastname, age, emailadress, message; char answer; std::cout << "Hello please imput your first name: "; std::getline(std::cin, firstname); std::cout << "\nNow please enter your last name: "; std::getline(std::cin, lastname); std::cout … |
| | I'm taking CMIS140, and I have a project using complex numbers. I can't figure out how to write the calculations into the program. I have attached the project, and the code I have written at this point. If anyone has any suggestions on how to do this, I would appreciate …  |
| | Id like to edit a file. At first i thought this was going to be easy, but now it appears quite complex. As i understand it there is no standard way to delete part of a file? im storing data on different lines in the file, and want to target …  |
| | [code] int countDigits(string word) { int count = 0; for (int i = 0; i < word.size(); i++) { if (word.at(i) < 57 && word.at(i) > 49) { count++; } } } [/code] i want to count the digits in a string "abc123". i know my problem is in the … |
| | I have an idl file and it compiles successfully when compiled with jidl.exe.When it is compiled with idlcpp.exe it gives an MIDL2025: syntax error: expecting a type specification near "in". the idl file is interface auditserv { void storeLoginInformation(in string infmn1,in string infmn2); }; |
| | hey , do u know any tool that convert IDL(Interactive data language) to C++. plz, if u know do tell me!! thanks in advance |
| | This program is frustrating me. I cannot for the life of me figure out what is causing this error message. It's the sort of thing where I fix one issue only to cause 10 more. The compiler is giving me like 8 identical pairs of errors, one for each Ball.itsPosition.getX/Y …  |
| | Plz guide me, "How windows APIs can provide different windows services to a developer?” |
| | Hello, I am developing a library, which untill a few days ago was working perfectly. With some changes I needed to perform I started having a segmentation fault. The problem is that I cannot understand why the fault is happening since the conclusion from gdb is the following: [code] Program … |
The End.