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• Xaudio2 XAPO Effects

  - by Jason Champion

  I've been working with XAudio2. After looking at the samples, example code, and sparse documentation available from Microsoft and the MSDN, I've found that there aren't any easy-to-find resources on creating and using XAPO effects, nor any XAPO effects produced by third parties that I can download and/or buy. What it looks like is that if I create an app that uses XAPO effects, I'll have to create them all myself because there's no community of existing applications like there is with technologies like Apple's AU or Steinberg's VST. Is this true, or are there others using XAudio2 and XAPO and I just haven't found them? Is there a place to ask programmer-support-related questions about XAudio2 and related technologies (or is this the best destination)? The best I've found so far are the XNA forums, which are game-specific and sparsely populated in the audio area.

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• Cool examples of procedural pixel shader effects?

  - by Robert Fraser

  What are some good examples of procedural/screen-space pixel shader effects? No code necessary; just looking for inspiration. In particular, I'm looking for effects that are not dependent on geometry or the rest of the scene (would look okay rendered alone on a quad) and are not image processing (don't require a "base image", though they can incorporate textures). Multi-pass or single-pass is fine. Screenshots or videos would be ideal, but ideas work too. Here are a few examples of what I'm looking for (all from the RenderMonkey samples): PS - I'm aware of this question; I'm not asking for a source of actual shader implementations but instead for some inspirational ideas -- and the ones at the NVIDIA Shader Library mostly require a scene or are image processing effects. EDIT: this is an open-ended question and I wish there was a good way to split the bounty. I'll award the rep to the best answer on the last day.

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• Wobble effects not working on Ubuntu 12.04

  - by Sunny Deere

  Just couple of days before installed Ubuntu 12.04 with all the necessary upgradations. Also installed Compiz Settings Manager & loved the animations & wobble effects of windows. But after restarting windows today, started receiving error messages & Wobble effects are disappeared. Also, other settings created by me in my last login, like small sidebar icons, too disappeared & unable to find even option in "All Settings Appearance" to resize the icons. Loved Ubuntu 12.04, specially Animation & Wobble effects but unhappy with these errors. Thanks in advance.

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• Lightning whip particle effects

  - by Fibericon

  I'm currently using Mercury Particle Engine for the particle effects in my game, and I'm trying to create a sort of lightning whip - basically a lightning effect bound to a line that curves when the player moves. I know how to use the editor, and I have particle effects working in game. However, I'm completely lost as to where I should start for this specific particle effect. Perhaps if I could find the code for it in a different particle engine, I could convert it, but I can't seem to find that either. What I did find was a lot of tutorials for creating the lines associated with lightning programmatically, which doesn't help in this case because I don't want it to be rigid. Perhaps it would be more like some sort of laser beam with crackling effects around it? I'm running into a wall as far as even beginning to implement this goes.

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• Problems with Routing URLs using CGI and Bottle.py

  - by Risingson

  I've been having difficulty getting anything more than a simple index / to return correctly using bottle.py in a CGI environment. When I try to return /hello I get a 404 response. However, if I request /index.py/hello import bottle from bottle import route @route('/') def index(): return 'Index' @route('/hello') def hello(): return 'Hello' if __name__ == '__main__': from wsgiref.handlers import CGIHandler CGIHandler().run(bottle.default_app()) And here is my .htaccess file DirectoryIndex index.py <ifmodule mod_rewrite.c=""> RewriteEngine on RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ /index.py/$1 [L] </ifmodule> I copied much of the code from here as I'm using DH and it seemed relevant: http://blog.coderonfire.com/2010/02/running-bottle-python-micro-framework.html Thanks for helping.

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• How can I execute CGI files from PHP?

  - by Henri W

  I'm trying to make a web app that will manage my Mercurial repositories for me. I want it so that when I tell it to load repository X: Connect to a MySQL server and make sure X exists. Check if the user is allowed to access the repository. If above is true, get the location of X from a mysql server. Run a hgweb cgi script (python) containing the path of the repository. Here is the problem, I want to: take the hgweb script, modify it, and run it. But I do not want to: take the hgweb script, modify it, write it to a file and redirect there. I am using Apache to run the httpd process.

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• Web form / CGI scripting: User enters "word", IFrame displays "word".html

  - by Haskella

  Okay, I'll admit being a designer, I don't know much about how data is handled from the servers in forms... (basically the whole programming part). Basically I have a text field that the user types something like "apple", this gets sent to the server and then displays the apple.html page that I have in a directory in an IFrame. If anyone can show me how to do this in a PHP script or Perl, would be great thanks! I think this is good start, it gets more complicated than this... I later have to convert the "apple" into something like 2321 and display 2321.html instead. If anyone can find a CGI script that does this, thanks!

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• CGI, python, and setgid

  - by user331398

  I'm running a compiled python cgi script (using cxfreeze) in Apache. The script, among other things, calls os.setuid(some_uid) os.setgid(some_gid) Obviously some_uid/gid are legal and I set the sticky bit for both user and group, and verified it is indeed set. However on every call i get an error os.setgid(int(self.gid)) OSError: [Errno 1] Operation not permitted As you may notice, setuid() is successful, setgid is not. Which is very weird, at least for me, though I admit I have little experience with permissions in Linux. Any thoughts/ideas are welcome. I'm using apache 2.2.15, python 2.6.5, RHEL 5.4 (kernel 2.6.18) Thank you

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• Reading a client's header from Python CGI script?

  - by jawonlee

  I'm writing a very simple web service, written in Python and run as CGI on an Apache server. According to Python docs (somewhere... I forgot where), I can use sys.stdin to read the data POSTed by a random client, and this has been working fine. However, I would like to be able to read the HTTP header information as well - incoming IP, user agent, and so on. I'd also like to keep it very simple for now, by using only Python libraries (so no mod-python). How do I do this?

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• Adding objects to LDAP via CGI

  - by musashiXXX

  I have a web form that collects information and submits it to a cgi that attempts to insert the data into LDAP. The problem is that I'm trying to use a variable with ::ldap::add and it's just not working. Here's the code: if {[string length env(QUERY_STRING)] != 0} { set handle [::ldap::connect localhost] set dn "cn=admin,dc=mycompany,dc=com" set pw "myPassword" ::ldap::bind $handle $dn $pw set dn "cn=[ncgi::value givenName] [ncgi::value sn],ou=people,dc=mycompany,dc=com" set formValues [ puts "cn {{[ncgi::value givenName] [ncgi::value sn]}}" puts "displayName [ncgi::value givenName] [ncgi::value sn]" foreach {key value} [ncgi::nvlist] { if {[string length $value] != 0} { puts "$key $value" } } puts "objectClass top" puts "objectClass person" puts "objectClass organizationalPerson" puts "objectClass inetOrgPerson" ] ::ldap::add $handle $dn { $formValues } ldap::unbind $handle } However, if I replace $formValues with the actual entries that I want to insert into LDAP, they get added just fine. I'm new to TCL so I wouldn't be surprised if there were some glaring errors in this snippet. Thanks in advance!

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• Finding out event that called a CGI script

  - by Acorn

  What I want is to be able to make my CGI script do different things depending on what action initiated the calling of the script. For example, if one button is pressed, a database is cleared. If another button is pressed, a form is submitted and that data is added to the database. Should I be doing something like adding the name of the form/button to the end of the POST data submitted in jQuery and then .poping it off in the script? Or is there some other data that's already sent in the POST that I could get from FieldStorage that would give me the information I need to decide what the script should do when it's called? And what if I wasn't using javascript? Would I have to have a hidden field that gets submitted with the name of the form/button? Or is it best to use a different target script for each button on a page?

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• Understanding CGI and SQL security from the ground up

  - by Steve

  This question is for learning purposes. Suppose I am writing a simple SQL admin console using CGI and Python. At http://something.com/admin, this admin console should allow me to modify a SQL database (i.e., create and modify tables, and create and modify records) using an ordinary form. In the least secure case, anybody can access http://something.com/admin and modify the database. You can password protect http://something.com/admin. But once you start using the admin console, information is still transmitted in plain text. So then you use HTTPS to secure the transmitted data. Questions: To describe to a learner, how would you incrementally add security to the least secure environment in order to make it most secure? How would you modify/augment my three (possibly erroneous) steps above? What basic tools in Python make your steps possible? Optional: Now that I understand the process, how do sophisticated libraries and frameworks inherently achieve this level of security?

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• validating radiogroup with perl/cgi

  - by Tyug

  Is it possible to validate a radio group (so something is checked off, or chosen) using server-side validation with Perl? If so, how? I already have it for JavaScript, but I want this form to be able to be submitted even without JavaScript enabled. Thus I will need the validation on the server-side. There is no fixed name for the radio group, it can change, however there must be a name, so that @names = $cgi->param() will give all the names. I'm thinking along something that will give me the type, like the type in JavaScript, to determine if it's a radio button in a group.

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• Controlling access to large files in Apache

  - by obeattie

  Hi there, I am looking to control access to some large files (we're talking many GB here) by the use of signed URLs. The files are currently restricted by LDAP Basic authentication (mod_auth_ldap), but I need to change this to verify the signature (passed as a query parameter in the URL). Basically, I just need to run a script to verify the signature, and allow the request to proceed as if authentication had succeeded. My initial thought to this was just to use a simple CGI script, but as the files are so large I'm concerned about performance. So, really, this question is (probably) more like "are there any performance implications of streaming large files from a CGI script via Apache?"… and if so, "is there a better way of doing this (short of writing a dedicated authentication module)?" If this makes any sense, help would be much appreciated :) P.S. I wasn't sure exactly what to search for for this (10 minutes of Googling were fruitless), so I may very well be duplicating someone else's post.

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• How to prevent session hijacking with SID (CGI perl)

  - by Gnippots

  I have a web app used by a small number of people (internal only) and am using a randomised sessionID that is stored under the user record and placed in various links. I have had a problem where users are sending links to each other which is allowing them to hijack the sender's session. What are some ways of preventing this from happening while still letting users send links to one another? Edit: The session ID in the link (which also contains $username) is just compared to what is stored in the User table. &incorrectLogin just prints an error followed by die; if ($sid) { $sth = $dbh->prepare("SELECT * FROM tbl_User WHERE UserID = '$username'"); $sth->execute(); $ref = $sth->fetchrow_hashref(); $session_chk = $ref->{'usr_sessionID'}; unless ($sid eq $session_chk) {&incorrectLogin;} } The problem is that if someone uses a link that is created by someone else, the page will load as them. I am not using cookies, and I recall being told in the past that CGI perl cookie handling is quite poor.

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• Problem using unicode in URLs with cgi.PATH_INFO in ColdFusion

  - by Loftx

  Hi there, My ColdFusion (MX7) site has search functionality which appends the search term to the URL e.g. http://www.example.com/search.cfm/searchterm. The problem I'm running into is this is a multilingual site, so the search term may be in another language e.g. ??????? leading to a search URL such as http://www.example.com/search.cfm/??????? The problem is when I come to retrieve the search term from the URL. I'm using cgi.PATH_INFO to retrieve the path of the search page and the search term and extracting the search term from this e.g. /search.cfm/searchterm however, when unicode characters are used in the search they are converted to question marks e.g. /search.cfm/??????. These appear actual question marks, rather than the browser not being able to format unicode characters, or them being mangled on output. I can't find any information about whether ColdFusion supports unicode in the URL, or how I can go about resolving this and getting hold of the complete URL in some way - does anyone have any ideas? Cheers, Tom

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• Server Push CGI Perl Problem writing the JPEG image

  - by Jujjuru

  I am a beginner in Perl CGI etc. I was experimenting with server-push concept with a piece of perl code. It is supposed to send a jpeg image to the client every 3 seconds. Unfortunately nothing seems to work. Can somebody help identify the problem? Here is the code.... use strict; # turn off io buffering $|=1; print "Content-type: multipart/x-mixed-replace;"; print "boundary=magicalboundarystring\n\n"; print "--magicalboundarystring\n"; #list the jpg images my(@file_list) = glob "*.jpg"; my($file) = ""; foreach $file(@file_list ) { open FILE,">", $file or die "Cannot open file $file: $!"; print "Content-type: image/jpeg\n\n"; while ( <FILE> ) { print "$_"; } close FILE; print "\n--magicalboundarystring\n"; sleep 3; next; } EDIT: added turn off i/o buffering, added "use strict" and "@file_list", "$file" are made local

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• The requested URL /PHP/php-cgi.exe/a.php was not found on this server

  - by Alona

  I have logged in just now so I couldn't edit the previous question I have asked, Sorry :) my last question is The requested URL /PHP/php-cgi.exe/a.php was not found on this server I have installed on Windows7 apache2.2 and php5.3 when I am trying to execute the *.php file I am getting an error: 404 Not Found "The requested URL /PHP/php-cgi.exe/a.php was not found on this server" This is my httpd configuration file From httpd.conf: ScriptAlias /cgi-bin/ "C:/Program Files (x86)/Apache Software Foundation/Apache2.2/cgi-bin/" ScriptAlias /php/ "C:/PHP/" AddType application/x-httpd-php .php Action application/x-httpd-php "C:/PHP/php-cgi.exe" DocumentRoot "C:/Program Files (x86)/Apache Software Foundation/Apache2.2/htdocs" I can execute perl scripts that resides in "C:/Program Files (x86)/Apache Software Foundation/Apache2.2/cgi-bin/" however execution of php scripts results with an error: "The requested URL /PHP/php-cgi.exe/a.php was not found on this server". Thanks

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• Why does my Perl CGI program fail with "Software error: ..."?

  - by kiran

  When I try to run my Perl CGI program, the returned web page tells me: Software error: For help, please send mail to the webmaster (root@localhost), giving this error message and the time and date of the error. Here is my code in one of the file: #!/usr/bin/perl use lib "/home/ecoopr/ecoopr.com/CPAN"; use CGI; use CGI::FormBuilder; use CGI::Session; use CGI::Carp (fatalsToBrowser); use CGI::Session; use HTML::Template; use MIME::Base64 (); use strict; require "./db_lib.pl"; require "./config.pl"; my $query = CGI-new; my $url = $query-url(); my $hostname = $query-url(-base = 1); my $login_url = $hostname . '/login.pl'; my $redir_url = $login_url . '?d=' . $url; my $domain_name = get_domain_name(); my $helpful_msg = $query-param('m'); my $new_trusted_user_fname = $query-param('u'); my $action = $query-param('a'); $new_trusted_user_fname = MIME::Base64::decode($new_trusted_user_fname); ####### Colin: Added July 12, 2009 ####### my $view = $query-param('view'); my $offset = $query-param('offset'); ####### Colin: Added July , 2009 ####### #print $session-header; #print $new_trusted_user; my $helpful_msg_txt = qq[]; my $helpful_msg_div = qq[]; if ($helpful_msg)

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• Trying to run a codeigniter app on custom php

  - by hamstar

  I have a CodeIgniter app that I deployed to a server with php 5.2 and my dev box has 5.3, and some stuff doesn't work anymore. I didn't want to upgrade php and risk the other app on the server having issues. Anyway I compiled a custom PHP and added the following to a single .conf file in /etc/httpd/conf.d/zcid.conf with all the other conf files. <VirtualHost *:80> DocumentRoot /var/www/cid/app ServerName sub.example.co.nz </VirtualHost> <Directory "/var/www/cid/app"> authtype Basic authname "oh dear how did this get here i am no good with computer" authuserfile /path/to/auth require valid-user RewriteEngine on RewriteCond $1 !^(index\.php|robots\.txt|createEvent\.php|/cgi-bin) RewriteRule ^(.*)$ /index.php/$1 [L] AddHandler custom-php .php Action custom-php /cgi-bin/php53.cgi </Directory> In /var/www/cid/app I have the cgi-bin folder and the php53.cgi that I copied from /usr/local/php53/bin/php-cgi But now when I navigate to the subdomain it says: The requested URL /cgi-bin/php53.cgi/index.php/ was not found on this server. And if I try to browse to /cgi-bin it says (what it is supposed to?): You don't have permission to access /cgi-bin/ on this server. Quite confused now. Anyone know what to do here? Thanks :)

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• Trying to run a codeigniter app on custom php

  - by hamstar

  I have a CodeIgniter app that I deployed to a server with php 5.2 and my dev box has 5.3, and some stuff doesn't work anymore. I didn't want to upgrade php and risk the other app on the server having issues. Anyway I compiled a custom PHP and added the following to a single .conf file in /etc/httpd/conf.d/zcid.conf with all the other conf files. <VirtualHost *:80> DocumentRoot /var/www/cid/app ServerName sub.example.co.nz </VirtualHost> <Directory "/var/www/cid/app"> authtype Basic authname "oh dear how did this get here i am no good with computer" authuserfile /path/to/auth require valid-user RewriteEngine on RewriteCond $1 !^(index\.php|robots\.txt|createEvent\.php|/cgi-bin) RewriteRule ^(.*)$ /index.php/$1 [L] AddHandler custom-php .php Action custom-php /cgi-bin/php53.cgi </Directory> In /var/www/cid/app I have the cgi-bin folder and the php53.cgi that I copied from /usr/local/php53/bin/php-cgi But now when I navigate to the subdomain it says: The requested URL /cgi-bin/php53.cgi/index.php/ was not found on this server. And if I try to browse to /cgi-bin it says (what it is supposed to?): You don't have permission to access /cgi-bin/ on this server. Quite confused now. Anyone know what to do here? Thanks :)

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• Forbidden - 403 error Apache

  - by philippe

  I was setting my local Apache server to run Python cgi, then I came with the following error: Forbidden You don't have permission to access /hw10/main.cgi on this server. What I've changed on my http config file was: ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" <Directory "/var/www/cgi-bin"> AllowOverride None Options FollowSymLinks +ExecCGI Order allow,deny Allow from all Require all granted </Directory> AddHandler cgi-script .cgi .py May someone please help me with that? I was trying to configure my Apache server to run .cgi Python scripts, and I came across that.

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• php handler as cgi/suexec

  - by sujit

  in my phpinfo it is showing php handler as cgi/fastcgi but i want to change it to cgi/suexec. i tried from whm php and suexec configuration and i found that suphp is default php haldler then why phpinfo is showing cgi/fastcgi as default handler.i want tochange to cgi/suexec as fastcgi is not working with php apc handler. output of phpinfo Server API CGI/FastCGI however whm shows Configure PHP and SuExec New Configuration Option Configured Value Default PHP Version (.php files) 5 PHP 5 Handler suphp PHP 4 Handler none Suexec on

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• Applying effects to jquery-ui tabs

  - by VikingGoat

  Is it possible to apply an effect to a jquery-ui tab, I haven't seen any examples of it, and I'm fairly sure that if it is possible the following is incorrect: <script type="text/javascript"> $(function() { $("#tabs").tabs(); $("#tabs").effect(slide,options,500,callback); }); </script>

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• search results filter effects - flex

  - by Adam

  I've created a search with a couple of comboboxes that allow users to filter their search results. The results are currently using a TileList & itemRenderer to display, and now I'd like to add an animation effect when the user filters their results. I know that you can use the itemsChangeEffect to create an animation effect when the user drags and moves result itmes. So I'd like to know if there's a way to create a similar effect triggered by the filtering on the comboboxes? Thanks.

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