wants to do miniproject as part of the academic curriculum using Computer graphics on Linux using C or C++. Can any one direct me to a direction how i can proceed. I know basics of C and C++
View 9 RepliesWell I have been interested in programming for a while, and just found out about Linux and Unix. I started out with Java, but now I know I bunch: Flash, C++, C and others. I was working on a mac so I made a few flash games then started to work on iPhone games. I was board one day and I found out about Unix and I thought that would be something else to try.So in an attempt to learn about Unix I have been reading different articles about it, and have heard of using different languages in one program. The article I was reading didn't give any examples, and it assumed the reader has programmed Unix before.
So how do you write programs in multiple languages, which languages would you use, and why would you want to do that?
I was wondering about a package that can be used to write and compile/run programs in different programming languages. I was also wondering how possible it is to program in Visual Basic 2010 in openSUSE if at all.
View 9 Replies View RelatedDo you know how to write programs that use electronic signatures in JAVA (although I am not pretentious about the language in any way).
When I say e-signatures I mean those USB smart cards(security tokens) that are capable of doing encryption by themselves and store securely the private key. I am particularly interested in how authentication works with a digital signature, how to sign data, and most importantly how to check that a digital certificate is valid. What do I need to store in the Database for authentication for example -- is it the serial or the Hash?
I want to create 3D animation and also make some big programs. Is python capable of that? or should I stick to C++?
View 3 Replies View RelatedI'm trying to create something like this:[URL]...when you press "fire" you see the graphic.My program already does all the math, but what i want is that animation of the projectile moving depending on the entered data.i really don't know how to accomplish that.I'm using Gtk#.what would i need to create something like that??
View 1 Replies View Relatedcreating a small plug in capable of redirecting some application's output in the browser's window.
I intend to display some simple animation done by a local process in the Internet browser page.
I installed ubuntu on a spare computer that i have and i need to write some simple programs in C. Only problem is that i'm not sure how to do that. Do i need to install some sort of C compiler?
View 12 Replies View RelatedI printed Bruce Eckel's book "Thinking in Java" and Bjarne Stroustrup's book "Programming Principles and Practice Using C++". They are just great.I installed Fedora 14 with java development features including Eclipse IDE.Now I want to be able to recreate the examples from the books and experiment over them in Eclipse.I have been working for a while with python and django merely in the terminal and gedit without Eclipse.Please, help me to get started. How can I write my Java or C++ programs as projects in Eclipse?
View 2 Replies View RelatedI'm wondering if it's possible to write some sort of script so I can have an icon on the desktop which opens a combination of programs I use together frequently.Specifically, I would like to have an icon called "keyboard practice" which does the following:
1) Open QJackCtrl and "click" on Start;
2) Open the Hexter softsynth and make the Jack connections between it and my speakers;
3) Make the Jack MIDI connection between my MIDI keyboard and Hexter.
I am using kubuntu 10.04 Linux.. How can I write and debug and execute programs of yacc and flex ?
View 3 Replies View RelatedI've always thought that the idea was very cool, but I get restricted by the way distros think that "httpd" and the like are the only things that should go into a runlevel - I mean Fedora doesn't even let you turn off the GUI!I want to do some lower-level hacking than that, so can someone help me?
View 1 Replies View Relatedi have two c++ programs, first one captures network packet from eth interface and save it in a file, second one uses this generated file for its purposes, data stream always exists then first program should always be running, although second program cannot read the file while the first program is writing in it, then i need to define a lock which can be checked by both progs before read/write, how is it possible to define this kind of lock in linux?
View 5 Replies View RelatedSo I was reading one of the Unix Philosophy rules by Eric Raymond:# Rule of Composition:Design programs to be connected to other programs.How does one achieve that? I know one could several C programs and then use a bash script to feed in the stdin, but how do you do that with just pure C, do you do it with pipelines?
View 2 Replies View RelatedI know this may be just me being a little bias on OS's but... I quite honestly believe that "some" programs run faster on linux than on windows.
Open Office for example, It runs amazingly fast on my linux distro but runs horribly (laggy) on my Vista machine.
Firefox also appears to run faster on my linux machine than on my Vista machine.
There are several more examples but I could go on and on with this.
My point is, do programs run faster on linux than on windows? Or is it just me that is in denial?
I am not sure if comparing linux to Vista is a good comparison in terms of program speed or not...
Also it should be noted that the Vista machine "hardware" is "several" times faster than my linux machine's "hardware".
I am not trying to start a flame war or anything like that, I am just trying to make sure I haven't totally lost my mind.
I work on Fedora 9 and I'm unable to compile my c++ program using the make in the terminal as well as in the IDE-Anjuta.although 'make' works fine with C programs,I get an error that g++ command is not found whenever I try it with C++ programs.
View 3 Replies View RelatedI just started messing around in Linux programming, and I wanted to create a simple test program to open a file, read to it, and write to it. I can open and read it, but write always gives errno = EBADF. I've messed with file creation permissions and I can figure out why write() thinks it's a bad file descriptor but not read().Here is my code:
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
[code].....
I need to write a GUI for the web to gather the following info:
Username
Password
SomePlainText
Path1
PathN
Of course, I then need an 'submit' button. I then want to have the user upload all paths supplied from their machine to my server. I hope to work with this data as arguments for a bash script. Also, I need to work with all possible client OSes consistently. What language should be used?
Can you offer me the code about fmod() in C. I want to know how this function work, i am very interested in it because i have no idea to implement it, i want to know... how to write the function... not 'how to use the function' can anyone post the source codes of this function here?
View 6 Replies View RelatedI've been working at learning how to write makefiles and I'm a bit stuck.
I've got a fairly simple project that will eventually be a framework for TCP/IP Communications in evolutionary algorithms that I've been using Eclipse to develop.
For personal development I want to learn how to write makefiles by hand but have gotten kind of stuck
Here is the makefile as it stands now:
Code:
Port and Mailbox are a virtual class and a template class respectively.
I get these errors when I run make:
Code:
So for some reason every single function in the Connection class has been defined multiple times. I assume because it's included as a dependency for multiple targets, but I've seen this in numerous examples that apparently work.
Everything in libpthread is undefined because I'm not linking in the library. I've tried adding the library options to the LDFLAGS variable but that doesn't seem to work either.
I want to learn to write an USB driver on linux 2.6.x I tried to find some documents but i could not find documents for it . Most of it gave direct driver code as reference.
View 1 Replies View RelatedI want to write a program (in C), which does 4 or 6 simultaneous calculation. Is there away of doing something like:
do at the same time{
Core 1 do:
this_thing_1
[code]....
I am trying to write a gui app with python2.6.4 and wx on win XP. I am attempting to resize an image with Imagemagick from within the program using os.popen and os.system in a thread.
Code:
os.popen("mogrify -resize " + str(x) + "x" + str(y) + "!" + " images/static/" + my_ref + ".gif")
orCode:
os.system("mogrify -resize " + str(x) + "x" + str(y) + "!" + " images/static/" + my_ref + ".gif")
they both work as far as resizing the image but when os.system is used a command shell opens during the mogrify and when os.popen is used the command shell does not show but the rest of the program freezes until mogrify is done.
I would prefer that the program did not freeze during this process and the command shell did not show.I have tried using wx to scale the image but the scaled image looks crappy.anyway is there a way to use os.system and not have the shell show?
I'm trying to write a toy linux shell. For starters this is what I'm trying to do:
1. Start a new process with fork.
2. Execute a program in the new process with execl().
3. Redirect the output from the new process from STDOUT to another file descriptor, using dup2(2).
4. In the parent process, read the output from the child process and write it to the screen.
Creating a new process and executing a program in it is no problems, the problem is that I can't seem to capture the output from it in the parent process.
Code:
//digenv
//C++arl 2011-03-24
#include <stdio.h>
#include <sys/types.h>
[code]...
I am working on a program called writemusic that creates a file of structures representing musical glyphs (notes, rests, barlines, etc). Another program called Printmusic then reads this file and writes out the music as a PNG image which can be printed. I had noticed that the final barline was always duplicated and I wanted to know which program was resonsible, so I tried some experiments:
1). I created a file in writemusic and ran it through printmusic, leaving writemusic running. As I expected there were two barlines at the end. I went back to writemusic and added a couple of bars. Now the duplicate barline had vanished to reappear at the new end.
2) I created two files and concatenated them with cat. When I processed this composite file with printmusic each of the two sections ended with a double barline.
3) I created a file with writemusic, closed the program, relaunched it and reloaded the same file (writemusic allows you to do this). Then I added a few bars. When printmusic had processed this augmented file, there were three barlines at the end of the first section and two at the end of the second.
The results for 2) and 3) only make sense if writemusic is actually putting these duplicates into the file, but the result for 1) suggests that printmusic is doing it when the file is read back.
I ran into an inconsistency in handling timers (VTALRM) between AMD and intel platforms with threads. My understanding was that the timers are per process. I discovered I must call setitimer in the thread on intel though. AMD allows me to make the setitimer call once in the main thread as expected. The code below demonstrates the issue. I must add the code in the INTEL define for it to work properly on intel cpu's. Am I missing something dumb??
[Code]...
A thread-aware version of gdb receives a system notification when a thread starts in the app it is debugging. GTK+ has hidden threads associated with loading icons into menus. So trying to debug a GTK+ program, even one that is apparently single-threaded, can produce a deadlock between gdb, the app and XWindows. The app (actually GdkPixbufLoader) grabs the focus, the mouse and the keyboard and then starts a thread when a menu is opened. If gdb has trouble with threads, it leaves the app blocked but still holding the mouse, et. al. Then you can't talk to gdb or any other GUI interface. To make gdb happy, all GTK+ apps need to be linked with -pthread, if you have the source. If not, gdb cannot be used. In order to break the deadlock, you need a non-GUI shell. If your /etc/inittab starts agetty, mingetty, or the like, and you can get to it with <CRTL><ALT><F3...F6>, you can do a kill -KILL <pid> on the offending app, recover and then go back to XWindows with <CTRL><ALT> <F1/F2>. Otherwise it's reboot time.
View 3 Replies View Relatedi am trying to do something very simple like a header and a footer for my first perl programs, what iam trying to do is that when i create a file in vim: lets say hello.pl , i would like that file to have already this in its header:
#!/usr/bin/perl
and this on the footer:
print "
";
so that i dont have to type everytime #!/usr etc i tried to do it this way but i get weird vim errors: header is a file that contains the header and footer $ vim hello.pl;header > is there another way to do it as a function in bash or some other one liner command?
I'm new to database programming but I'm working in a project that makes use of sqlite3. I know I should #include <sqlite3.h> but it is not there.... i have just sqlite.h. can anyone tell me what to do to have the sqlite3 headers and start using them in my programs
View 9 Replies View RelatedI would like to know the Tools which are used for Testing the performance of C and C++ programs under linux?
View 4 Replies View Related