Brandon's Notepad

June 5, 2015

Playing WAV Files In PERL

Filed under: Perl,Programming — Brandon @ 3:42 pm
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Home > My Lists > Programming Notes > PERL > Playing WAV Files In PERL


I don’t remember why exactly, but a few years ago I wrote a countdown timer that would sound a chime when it reached zero. I decided to keep the code that plays the sound for future reference. Note, this works using ActiveState PERL on Windows.



use Win32::Sound;

$wav = 'C:\path\to\file.wav';

Win32::Sound::Play($wav);


January 30, 2012

Getting Google Maps

Filed under: How-To,Online Tools,Perl,Programming — Brandon @ 4:08 pm
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So, I’d like to have a current traffic map delivered to my e-mail at the precise moment I’m leaving work for the day. Call me lazy, but this is the sort of thing that can be automated pretty easily and I don’t want to go look it up, I want it delivered. Someday, I’ll get around to setting this up, but as they say, a journey begins with a single step. In this case, the step is to find a way a good to download Google Maps with a script. For now, that is the scope of this post.


Here’s some initial research to plow through:
Mapki: Google Map Parameters Best reference so far!
Google Static Maps API*
A PERL/Wget solution
A Python script
MapTileCacher in PERL
In Bash
Discussion on Google blocking tile downloads

* On 2/7/2012, I tried using the Google Static Maps API and received Error 400 (malformed or illegal request) when using the URL described therein. I have had more luck using Google Maps directly to frame the map, getting the (perma)link, and tweaking the parameters.


October 7, 2011

Semaphores

Filed under: Programming — Brandon @ 10:00 am
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Home > My Lists > Programming Notes > Semaphores


A semaphore is an abstract data type used to control access to a common resource in a parallel programming environment.


Javaworld Q&A article from 1999
Java Named Semaphores by Mark Nadelson, C/C++ Users Journal
Concurrent Programming Using Java by S. J. Hartley, Drexel University


March 1, 2010

The Mark Of The Web

Home > My Lists > Programming Notes > HTML & CSS > The Mark Of The Web


Starting with IE for XP SP2, web pages generated locally (e.g. in a temp directory) do not load properly in Internet Explorer if they include Active Content. This is a result of improved security surrounding the Local Machine Zone. Depending on your operating environment, it may not be possible or desirable to change IE’s security settings; moreover, such changes would have to be applied to all machines accessing local content. The “Mark of the Web” is a better solution.


Microsoft has implemented a new feature called the “Mark of the Web” (or MOTW for short). It is a specially-formated HTML comment that directs IE to open the page in the same security zone as the specified URL. Two valuable examples are:

<!-- saved from url=(0014)about:internet -->

and

<!-- saved from url=(0016)http://localhost -->

Under default security settings, IE is forced to open the page with the former code in the Internet Zone and a page with the latter code in the Local Intranet Zone. The number in parentheses is the number of characters in the URL.

Source: http://msdn.microsoft.com/en-us/library/ms537628(VS.85).aspx


July 30, 2009

HTML Special Characters

Filed under: HTML,Programming — Brandon @ 10:43 am
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Home > My Lists > Programming Notes > HTML & CSS > HTML Special Characters


I often need the HTML codes for special characters. I’d love to compile a definitive list of my own here, but until I have the time this reference will have to do.



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