General C++ Programming - C++ Forum

graphics without redrawing the background?

Hi. I was wondering if there was any way to do graphics without redrawing the whole background every frame but still be able to animate drawn objects. I feel li...

[2 replies] Last: Dirty rects was a good strategy 8 years ago. Nowadays it's pointless.... (by Disch)

by lukecian

Template whens and when nots

C++ provides template mechanism but I am confusing about when we should use template and when we should not. anybody willing to give me tips or some usefu...

[3 replies] Last: The only advantage of non-type template parameters isjust in function... (by ne555)

by hao

Header file issue. (simple program)

I just learned how to use header file recently, and try to write this small program but somehow it does not work. I am using Microsoft visual c++ main.cpp #i...

[2 replies] Last: Thank you sooo much for helping. Thank you for your advice and i'll be... (by hao)

by Bebeoix

[auto_ptr][test class]

Hi, I'm currently writing a test program who test each of the auto_ptr class functions. I have some problem to find a way to test certain functions : - the ...

[4 replies] Last: I figured out for the first 3 functions thank you. But the last one, ... (by Bebeoix)

by OmarASL

Helpping to blocking traffic

Hello everybody how are you I want to write some code to blocks traffic to come from port like a simple firewall . would you help me please .

[3 replies] Last: You can use the hosts file if you want to block traffic coming from th... (by blueberry)

by DethRaid

Assistance needed with pointer arrays

As the title suggests, I am trying to use a pointer as an array in my code but it's not working. I've read the tutorials on this site and a few others about usi...

[6 replies] Last: thanks rollie , that helped me to clear the concept to some extend . (by bluecoder)

by Basota1992

Help me with solving

#include <iostream> using namespace std; #include <conio.h> #include <math.h> class point {public:double ab,or; public:point() {}; point (double a, doub...

[5 replies] Last: Please specify what does not work ? what does the program suppose to d... (by bluecoder)

by bond5611

Why Not Destructor is Calling

#include<iostream> using namespace std; class A{ int i; int b; public: A(){ i=0; ...

[2 replies] Last: Or change main to limit the scope of the objects: int main(){ { ... (by cire)

by rvelez3

org statement

(const String& org, const String& app) What does the abreviation org stand for, and what is it's definition in the function argument. I think it may be related ...

[1 reply] : org is the parameter name. Read the documentation or ask the person wh... (by Peter87)

by Nybble

Flickering frames...

Hey me again, I have this problem with my animations: there is like a flickering if the animation frame for moving left/right is greater than the max frames for...

[3 replies] Last: @peter87: yes it is an else if that is how I have it, I didn't copy... (by Nybble)

by therry1

#include errors

Hi all, my program is: #include <iostream> int main() { using namespace std; cout << " You have succeeded with this place_holder " << endl << endl;...

[1 reply] : I think visual studio is complaining that you didn't put #include "st... (by Peter87)

by Kasirga

C2227: left of '->width' must point to class/struct/union/geberic type

..... ... unsigned int unResAvail; unsigned char unsSpeedValue; unResAvail= clasModule ->getAvilableResults(); if(unResAvail > 0) { in...

[4 replies] Last: I got the top part, bottom, I myself have made (by Kasirga)

by bond5611

Why Not Shallow Coping

In the code below why shallow copy is not happening? #include<iostream> using namespace std; class A{ int *p; int a ; ...

[1 reply] : It is happening. Note, you can't delete 'p', because you didn't alloca... (by rollie)

by bond5611

Is this called recursion.

I am also laughing at myself but really can this thing be called recursion? int function3(int num){ if(num==0) return 1; ...

[4 replies] Last: Recursion does not require a function to call itself directly. You can... (by andywestken)

by Kasirga

error C3861 'app_cmd_send_mh' : identifier not found

#include "C_TSRRecognize.h" #include "Image/ByteImage.h" #include "C_TSRReadout.h" extern "C" { #include "recognize.h" } void recognize(int width, int height, ...

[2 replies] Last: thanks (by Kasirga)

by Wolfenstien

Problems dealing with rand()

Hello! I am coding a tic tac toe game in which the computer generates a random number and makes a move accordingly. The random numbers are being generated well ...

[2 replies] Last: Oh my bad. Thank you for Helping. And sorry to inconvinience you over ... (by Wolfenstien)

by myslf

Project help

this is myfile.txt for use as the starting point. start 0 0 0 0 FarmersBestBank 0 135 0 0 Dante_s_Peak 0 0 0 285 Cen...

[no replies]

by Dynamo9

Find errors of argv[1] and argv[2]

Hi So I'm doing some error checking of parameters that are entered. This is what I've done for argv .The parameters are entered in the format of 25 2, and if i...

[4 replies] Last: > I need to check values of argv and argv Checking if a string cont... (by JLBorges)

by therry1

line numbers in output window

I don't know if this is the correct forum for this type of question. To all vs2010 users. I have line numbers in my solution/build window, but when I build, th...

[2 replies] Last: I think there is a misunderstanding of what I want. When I build a sol... (by therry1)

by Karajic

Exit mistake

Hi everyone! Can you help me with my assignment I'm truing to write a function which will give the message and exit the program, but when I'm trying to comp...

[4 replies] Last: FYI, it stands for C Standard Library. (by firedraco)

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General C++ Programming - May 2012 (Page 23)