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Articles indexed in June 2010

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  • Windows Batch Script to Replace Environment Variables in a File

    - by skb
    Hi. I want to write a batch file that will take the contents of a file, and replace any environment variable references inside the file with the actual environment variable values. Is this possible? Basically, if a file had this: %PROGRAM FILES%\Microsoft SQL Server\ then I would want the file contents to become: C:\Program Files\Microsoft SQL Server\ after the batch script ran. This is just one example, but I want ALL environment variables to be expanded. Thanks in advance for any help!

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  • -[UIImage drawInRect:] / CGContextDrawImage() not releasing memory?

    - by sohocoke
    I wanted to easily blend a UIImage on top of another background image, so wrote a category method for UIImage, adapted from http://stackoverflow.com/questions/1309757/blend-two-uiimages : - (UIImage *) blendedImageOn:(UIImage *) backgroundImage { NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; UIGraphicsBeginImageContext(backgroundImage.size); CGRect rect = CGRectMake(0, 0, backgroundImage.size.width, backgroundImage.size.height); [backgroundImage drawInRect:rect]; [self drawInRect:rect]; UIImage* blendedImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); [pool release]; return blendedImage; } Unfortunately my app that uses the above method to load around 20 images and blend them with background and gloss images (so probably around 40 calls), is being jettisoned on the device. An Instruments session revealed that calls to malloc stemming from the calls to drawInRect: are responsible for the bulk of the memory usage. I tried replacing the drawInRect: messages with equivalent function calls to the function CGContextDrawImage but it didn't help. The AutoReleasePool was added after I found the memory usage problem; it also didn't make a difference. I'm thinking this is probably because I'm not using graphics contexts appropriately. Would calling the above method in a loop be a bad idea because of the number of contexts I create? Or did I simply miss something?

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  • TFS 2010 make change to local copy

    - by Prashant
    In TFS 2010 I have a project and I want to make only a local change to it and not check it in. I don't have edit privileges on the project. I tried removing the read only from the project but it will not work(will not allow me to edit). Is there an alternative ?

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  • Fancybox - getting html from element based on id?

    - by kastru
    I have the following snippet; $("a.lightbox_image").each(function () { $(this).fancybox({ 'transitionIn': 'elastic', 'transitionOut': 'elastic', 'speedIn': 600, 'speedOut': 200, 'content': $('#lightbox_image_content_'+this.id.replace('lightbox_image_','')).html() }); }); But the above does not get the content from the element referenced to in the content property - what am i doing wrong?

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  • C++ code parser/processor library

    - by uray
    is there any library that parse a source code of C++ to produce lets say, call graph, class inheritance tree, flow control, class member list or anything as a ready to use graph or structure in code (not in diagram image). to make it more clear, suppose to generate call graph image, there will be a process like this: ` C++ source -> parser -> intermediate structure -> renderer -> call graph image ^ | [i need this] `

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  • NSTimer as a timeout mechanism

    - by alexantd
    I'm pretty sure this is really simple, and I'm just missing something obvious. I have an app that needs to download data from a web service for display in a UITableView, and I want to display a UIAlertView if the operation takes more than X seconds to complete. So this is what I've got (simplified for brevity): MyViewController.h @interface MyViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> { NSTimer *timer; } @property (nonatomic, retain) NSTimer *timer; MyViewController.m @implementation MyViewController @synthesize timer; - (void)viewDidLoad { timer = [NSTimer scheduledTimerWithTimeInterval:20 target:self selector:@selector(initializationTimedOut:) userInfo:nil repeats:NO]; [self doSomethingThatTakesALongTime]; [timer invalidate]; } - (void)doSomethingThatTakesALongTime { sleep(30); // for testing only // web service calls etc. go here } - (void)initializationTimedOut:(NSTimer *)theTimer { // show the alert view } My problem is that I'm expecting the [self doSomethingThatTakesALongTime] call to block while the timer keeps counting, and I'm thinking that if it finishes before the timer is done counting down, it will return control of the thread to viewDidLoad where [timer invalidate] will proceed to cancel the timer. Obviously my understanding of how timers/threads work is flawed here because the way the code is written, the timer never goes off. However, if I remove the [timer invalidate], it does.

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  • Android adding HTML content on a webview without space

    - by Rahul
    I am trying to add an HTML content to a web view. If the words in the HTML content are without spaces then webview keeps that particular word on the same line.I want that content to be wrapped and be on the next line.Is it possible to do that.I am attaching a sample code that can reproduce the issue. String temp="<p>WebViewallowsyoutocreateyourownwindowforviewingwebpages(orevendevelopacompletebrowser).Inthistutorial,youcreateasimpleActivitythatcanviewandnavigatewebpages.1.CreateanewprojectnamedHelloWebView.</p>"; WebView wb=new WebView(this); wb.loadDataWithBaseURL("", temp, "text/html", Encoding.UTF_8.toString(),""); setContentView(wb);

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  • E17 review

    <b>A Window:</b> "Enlightenment has been quite interesting to me. It has not even got a beta release so far yet I like to use it."

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  • Ubuntu 8.04 wont reboot from script

    - by Littlejon
    I have a script that is run to backup a server via Rsync, after that script is run I want the server to reboot. My script is run as root from the Crontab at 3am in the morning. #!/bin/bash HOST="email" RSYNC_OPTS="-a -v -v --progress --stats --delete" RSYNC_DEST="10.0.0.10::$HOST" BACKUP_LIST="/etc /home /root" TIMESTAMP="/timestamp-bkup-start.chk" TIMESTAMP2="/timestamp-bkup-stop.chk" touch $TIMESTAMP rsync $RSYNC_OPTS $TIMESTAMP $RSYNC_DEST for BACKUP_ITEM in $BACKUP_LIST; do rsync $RSYNC_OPTS $BACKUP_ITEM $RSYNC_DEST done /etc/init.d/zimbra stop sleep 60s rsync $RSYNC_OPTS /opt $RSYNC_DEST touch $TIMESTAMP2 rsync $RSYNC_OPTS $TIMESTAMP2 $RSYNC_DEST echo `date +%Y%m%d%H%M` >> /var/log/reset reboot # $# shows number of args passed # $1 to access first variable #if [ $# -eq 1 ]; then # if [ $1 = "withreboot" ]; then # echo "rebooting..."; # echo `date +%Y%m%d%H%M` >> /var/log/reset # /sbin/reboot # fi #fi I have tried using init 6 rather then reboot. I have tried /sbin/reboot. I also have another basic script that just echos to the reset log and runs reboot without issue. It is just with the script above the server wont restart. If anyone has any theories that would be great as I have run out of idea. Thanks, Jon

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  • Finding Missing UDP Frames Using Wireshark + Custom Dissector (for CQS)

    - by John Dibling
    How do you use Wireshark to identify missing UDP frames? I have written a custom dissector for the CQS feed (reference page). One of our servers gaps when receiving this feed. According to Wireshark, some UDP frames are never received. I know that the frames were sent because all of our other servers are gap-free. A CQS frame consists of multiple messages, each having its own sequence number. My custom dissector provides the following data to Wireshark: cqs.frame_gaps - the number of gaps within a UDP frame (always zero) cqs.frame_first_seq - the first sequence number in a UDP frame cqs.frame_expected_seq - the first sequence number expected in the next UDP frame cqs.frame_msg_count - the number of messages in this UDP frame And I am displaying each of these values in custom columns, as shown in this screenshot: A typical CQS log will consist of millions of rows, so I can't just eyeball it. Is there any way I can get Wireshark to tell me which frames are missing?

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  • How make rewrite rules relative to .htaccess file.

    - by Kendall Hopkins
    Current I have an .htaccess file like this. RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f [OR] RewriteCond %{REQUEST_URI} ^/(always|rewrite|these|dirs)/ [NC] RewriteRule ^(.*)$ router.php [L,QSA] It works create when the site files are in the document_root of the webserver (ie. domain.com/abc.php - /abc.php). But in our current setup (which isn't changeable), this isn't ensured. We can sometimes have arbitrary folder in between the document root and folder of the .htaccess file (ie. domain.com/something/abc.php - /something/abc.php). The only problem with is that is the second RewriteCond no longer works. Is there anyway to dynamically check if the accessed path by a path relative to .htaccess file. For Example: If I have a site where domain.com/rewrite/ is the directory of the .htaccess file. NOT FORCED TO REWRITE -> domain.com/rewrite/index.php FORCED TO REWRITE -> domain.com/rewrite/rewrite/index.php If I have a site where domain.com/ is the directory of the .htaccess file. NOT FORCED TO REWRITE -> domain.com/index.php FORCED TO REWRITE -> domain.com/rewrite/index.php

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  • What benefit do I get from using a 64-bit server?

    - by blockhead
    I bought a small 256MB slice from slicehost and installed Ubuntu 10.04 64bit and wordpress on it. Performance was dismal as apache was eating up all my memory. Once I did some taming of apache and switched to fCGI things ran fine. Next I rebuilt as a 32 bit server, and performance was much better. What benefit would I get from a 64 bit server. Is it all about the memory?

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  • Fix bad blocks on Mac hard disk

    - by Andrew Vit
    I have a hard disk that I scanned with TechTool and it reports one bad block. As far as I can tell, TechTool only scans and reports a failure. It doesn't fix anything. Back in the day, Norton Disk Doctor did the job of scanning and flagging (remapping) bad blocks on the Mac. Today we have various tools for fixing up HFS+ directory errors (Disk Utility, fsck, DiskWarrior, TechTool), but I don't know of any tool that will do a surface scan and fix the bad blocks too. What software is available for this? If I know the address of the bad block, is there a low-level terminal utility for marking it?

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  • expiring image assets referenced from stylesheets

    - by crankharder
    So rails appends timestamps to CSS, JS and image files: image_tag 'foo.png' => <img src="foo.png?123123123123' /> # or somethin like that ...which is really useful for doing far-future expiration, etc. with Apache's help. But what about images referenced from stylesheets? They don't get an appended timestamp. So it seems to me that it's entirely possible to update one of those images, redeploy, and then not see the file change because the browser doesn't think it's been updated. Unless I'm missing something. If I'm not, is there a decent solution to this problem?

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  • Yet another div height question

    - by cf_PhillipSenn
    Over the years, I've struggled with this. This year, there might be a solution. I need a header, content and footer. I would like the footer to be at the bottom of the page, the header at the top, and the content in between. I would like the content to have a scroll bar. Q: Is that too much to ask?

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  • Is there a semantic difference <span>'s and <div>'s?

    - by DavidR
    I know when coding HTML, I'm supposed to keep semantics in mind, e.g., h1 needs to be a main header, h2 needs to be a subheader, tables need to be tables, use <em> for emphasis instead of <i>, etc. Is there a proper difference between divs and spans except one is a block and the other is in-line? When I was learning I was told that <span>'s were for styling text mid-line. If I had a small blurb of text that I needed positioned at a certain point in my webpage, one that doesn't warrent a <p> tag, would I use a span should I stick with div's? What if that text needs to cover two lines (i.e., it needs a width) if it contains nothing but text, what should I use?

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  • UIScrollView - with paging enabled, can I "change" the page width?

    - by Mike McMaster
    What's the simplest way to have a scroll view (with pagingEnabled set to YES) have a page width set to something other than the scroll view's bounds? Let me give an example. Suppose I have a scroll view with 10 items, each 150 pixels wide, and my scroll view is 300 pixels wide. If I start with views 1 and 2 visible and scroll horizontally to the right, I want the next "page" to show items 2 and 3. If I scroll one more page to the right, I would see items 3 and 4. Has anyone done this? If not, what strategy would you use?

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  • post in update panel returns 0|error|500| reason or how to handle the error to see better descriptio

    - by dev-cu
    Hello, I have an update panel which contains a few controls, a Place Holder which is dynamically populated (i don't know if this is what is causing the error) and after the a post is made the server is returning 0|error|500| only that, everything is working fine in my development machine, but something is wrong on server (Windows Server 2008, IIS 7) any thoughts about what's happening or any approach to catch that error on server and view the details of the error. thanks.

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  • Why Isn't My .Net Object Serializable?

    - by Rob P.
    I've got a 'MyDataTable' class that inherits from System.Data.DataTable I've implemented ISerializable in my class and have a 'Public Overrides Sub GetObjectData...' But when I try to serialize the an object of 'MyDataTable' I get an error saying that 'MyDataTable' is not marked as serializable. If I used a DataTable instead - my code serializes correctly. If I add a serializable attribute to the 'MyDataTable' class - it serializes correctly, but I'm told that is unnecessary if I implement ISerializable. Can someone point me in the right direction?

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