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• Print screen key can no longer select a region to capture

  - by Steven Sproat

  After upgrading from 11.04 to 11.10, I've noticed that the "Take Screenshot" application used to be launched when I'd hit print screen. Now it automatically captures the entire screen. In 11.04 it would pop up the "take screenshot" application which allows me to capture a rectangular region of the screen. Can this be reverted? I never want to capture the whole screen, only portions of it, which means manually cropping out that section in GIMP with this changed behaviour. Cheers.

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• PMDB Block Size Choice

  - by Brian Diehl

  Choosing a block size for the P6 PMDB database is not a difficult task. In fact, taking the default of 8k is going to be just fine. Block size is one of those things that is always hotly debated. Everyone has their personal preference and can sight plenty of good reasons for their choice. To add to the confusion, Oracle supports multiple block sizes withing the same instance. So how to decide and what is the justification? Like most OLTP systems, Oracle Primavera P6 has a wide variety of data. A typical table's average row size may be less than 50 bytes or upwards of 500 bytes. There are also several tables with BLOB types but the LOB data tends not to be very large. It is likely that no single block size would be perfect for every table. So how to choose? My preference is for the 8k (8192 bytes) block size. It is a good compromise that is not too small for the wider rows, yet not to big for the thin rows. It is also important to remember that database blocks are the smallest unit of change and caching. I prefer to have more, individual "working units" in my database. For an instance with 4gb of buffer cache, an 8k block will provide 524,288 blocks of cache. The following SQL*Plus script returns the average, median, min, and max rows per block. column "AVG(CNT)" format 999.99 set verify off select avg(cnt), median(cnt), min(cnt), max(cnt), count(*) from ( select dbms_rowid.ROWID_RELATIVE_FNO(rowid) , dbms_rowid.ROWID_BLOCK_NUMBER(rowid) , count(*) cnt from &tab group by dbms_rowid.ROWID_RELATIVE_FNO(rowid) , dbms_rowid.ROWID_BLOCK_NUMBER(rowid) ) Running this for the TASK table, I get this result on a database with an 8k block size. Each activity, on average, has about 19 rows per block. Enter value for tab: task AVG(CNT) MEDIAN(CNT) MIN(CNT) MAX(CNT) COUNT(*) -------- ----------- ---------- ---------- ---------- 18.72 19 3 28 415917 I recommend an 8k block size for the P6 transactional database. All of our internal performance and scalability test are done with this block size. This does not mean that other block sizes will not work. Instead, like many other parameters, this is the safest choice.

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• How can I tell the size of my app during development?

  - by Newbyman

  My programming decissions are directly related to how much room I have left, or worse perhaps how much I need to shave off in order to get up the 10mb limit. I have read that Apple has quietly increased the 3G & Edge download limit from 10mb up to 20mb in preparation for the iPad in April. Either way, my real question is how can I gauge a rough estimate of how large my app will end while I'm still in the development phase? Is the file size of my development folder roughly 1 to 1 ratio? Is the compressed file size of my development a better approximation? My .xcodeproj file is only a couple hundred kB, but the size of my folder is 11.8 MB. I have a .sqlite database, less than 20 small png images and a Settings.Bundle. The rest are unknown Xcode files related to build, build for iphoneOS, simulator etc.... My source code is rather large with around 1000 lines in most of the major controllers, all in all around 48 .h&.m files. But my classes folder inside my development folder is less than 800kb. Digging around inside my Build file, there is lots of iphone simulator files and debugging files which I don't think will contribute to the final product. The Application file states that it is around 2.3 MB. However, this is such a large difference from the 11.8 MB, I have to wonder if this is just another piece of the equation. I have the app on the my device, I'm in the testing phase. Therefore, I though that I would try to see how large the working version was on the device by checking in iTunes, however my development app is visible on the right-hand the application's iphone screen, but no information about the app most importantly its size. I also checked in Organizer, I used the lower portion of the screen-(Applications), found my application and selected the drop down arrow which gave my "Application Data" and a download arrow button to the right to save a file on my desktop, named with the unique AppleID. Inside the folder it had three folders-(documents, library, tmp) the documents had a copy of my .sqlite database, the library a few more files but not anything obvious or of size, and the tmp was empty. All in all the entire folder was only 164kb-which tells me that this is not the right place to find the size either. I understand that the size is considered to be the size of my binary plus all the additional files and images that I have add. Does anyone have a effective way of guaging how large the binary is or the relating the development folder size to what the final App Store application size will end up. I know that questions have been posted with similar aspects, but I could not find any answered post that really described...what files, or how to determine size specifically. I know that this question looks like a book, but I just wanted to be specific in conveying exactly what I'm looking for and the attempts thus far. *Note all files are unzipped and still in regular working Xcode order of a single app with no brought-in builds or referenced projects. I'm sure that this is straight forward, I just don't know where to look?

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• page posting issue when working in Screen Scraping

  - by Muhammad Akhtar

  Hi, I am working on screen scraping and done successfully in 3 websites, I have an issue in last website here is my url, When I hit with my parameter, it is showing result on next page, simply posting to other page and showing the result fine on other page Here is My Test However, when I hit from my application, since here I don't have an option to post, it only fetch html of requested page that is obviously my above mention HTML test link, that actually have parameter in URL to get the result. How can I handle this situtation? Please give me hint. Thanks here is my C# code, I am using HTMLAgality String url; HtmlWeb hw = new HtmlWeb(); HtmlDocument doc; url = "http://mysampleURL"; doc = hw.Load(url);

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• How to handle an AsyncTask during Screen Rotation?

  - by Janusz

  I read a lot on how to save my instance state or how to deal with my activity getting destroyed during screen rotation. There seem to be a lot of possibilities but I haven't figured out which one works best for retrieving results of an AsyncTask. I have some AsyncTasks that are simply started again and call the isFinishing() method of the activity and if the activity is finishing they wont update anything. The problem is that I have one Task that does a request to a web service that can fail or succeed and restarting the task would result in a financial loss for the user. How would you solve this? What are the advantages or disadvantages of the possible solutions?

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• Screen Capture with Open GL using glReadPixels

  - by Raja

  Hi, I created a CGRegisterScreenRefreshCallback(refreshCallback, NULL) and in the refreshCallback method get the list of rectangles which have changed. I am getting the rectangle data from frameBuffer using OpenGL glReadPixels. Is there a better way of screen capture either with/without opengl and also using OpenGL can I skip reading pixel by pixel ? I have looked at glGetTexImage and glCopyTexSubImage2D. Any simple code block which can explain how to use these functions to get the changed rectangle data would be very helpful ? Thanks, Raja.

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• Screen Scraping

  - by Sambo

  Hi I'm trying to implement a screen scraping scenario on my website and have the following set so far. What I'm ultimately trying to do is replace all links in the $results variable that have "ResultsDetails.aspx?" to "results-scrape-details/" then output again. Can anyone point me in the right direction? <?php $url = "http://mysite:90/Testing/label/stuff/ResultsIndex.aspx"; $raw = file_get_contents($url); $newlines = array("\t","\n","\r","\x20\x20","\0","\x0B"); $content = str_replace($newlines, "", html_entity_decode($raw)); $start = strpos($content,"<div id='pageBack'"); $end = strpos($content,'</body>',$start) + 6; $results = substr($content,$start,$end-$start); $pattern = 'ResultsDetails.aspx?'; $replacement = 'results-scrape-details/'; preg_replace($pattern, $replacement, $results); echo $results;

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• Android 2.2: Screen brightness/timeout question

  - by Johan

  Im using the following code to adjust the brightness of the screen: public void SetBright(float value) { Window mywindow = getWindow(); WindowManager.LayoutParams lp = mywindow.getAttributes(); lp.screenBrightness = value; mywindow.setAttributes(lp); } But i want the brightness to be 0% for a specific time. But when i use SetBright(0.0f), i cant change it back. I made a timer that runs for a minute with 0% brightness, then turns it back to 100%. Works when i use 10% for example. But when i turn it to 0% i cant seem to wake it up again. Any ideas how to solve this?

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• Screen scraping an application window and interacting with the mouse and keyboard

  - by ccook

  The other day I found myself addicted to a flash game and frustrated by the thing at the same time. In a moment of frustration with the game I thought I would make a 'bot' to beat it for me. Well, I really wouldn't, but it made me realize: I don't know how to interact with another application in a way to do this. Which brings me to the question, how would one take screenshots of another running application and interact with it with the keyboard and mouse. Ideally the solution would be in a managed language like c#. When doing the background reading the net was drowning with articles on scrapping HTML. There were not many articles on actually screen scrapping an application. Diverse answers are appreciated as I’m really looking at surveying what’s out there.

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• App stays in splash screen in iOS 7.0.3

  - by Sathish

  Recently in iOS 7.0.3, my app stays in the splash screen and was not going into the app at all. If i kill the app, and launch it again it opens up without any issues. Can anyone help me on this issue?. I think the application -didFinishLaunchingWithOptions was not returning yes. Note: I have a lot of stuffs like deleting database, initializing a dozen of buttons in appdelegate's *init* function. I know that it is a bad practice to have things in init but since its been there for more than 4 years and was working fine with previous OS versions i didn't find a good reason to change it. Also this issue is not happening all the time. My app size is 40 MB. Thanks in advance...

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• android drawable changes sizes on screen when reading image from file

  - by Daniel Benedykt

  Hi I have an image on a private file. I read the file, create the drawable, and assign it to an ImageView. The ImageView has WRAP_CONTENT so the size is automatic. On 320x480 screens, the image looks good But on screens with more resolution and high density 480x800 or 480x854 (N1, droid) , when the image is for example 150x150, I see the image as 100x100. Of course it has something to do with the density but not sure how should I resolve this. This is my code: FileInputStream fis = this.openFileInput("icon.png"); icon = Drawable.createFromStream(fis, "icon"); fis.close(); imageView.setImageDrawable(icon); thanks

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• How to Restore Uninstalled Modern UI Apps that Ship with Windows 8

  - by Lori Kaufman

  Windows 8 ships with built-in apps available on the Modern UI screen (formerly the Metro or Start screen), such as Mail, Calendar, Photos, Music, Maps, and Weather. Installing additional Modern UI apps is easy using the Windows Store, and uninstalling apps is just as easy. What if you accidentally uninstall a built-in app? It can be easily restored with a few clicks of your mouse. To begin, access the Modern UI screen by moving your mouse to the extreme, lower, left corner of the screen and click the Start screen button that displays. NOTE: You can also press the Windows key to access the Modern UI screen. How Hackers Can Disguise Malicious Programs With Fake File Extensions Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer

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• HTML Agility Pack Screen Scraping XPATH isn't returning data

  - by Matthias Welsh

  I'm attempting to write a screen scraper for Digikey that will allow our company to keep accurate track of pricing, part availability and product replacements when a part is discontinued. There seems to be a discrepancy between the XPATH that I'm seeing in Chrome Devtools as well as Firebug on Firefox and what my C# program is seeing. The code I'm currently using is pretty quick and dirty... //This function retrieves data from the digikey private static List<string> ExtractProductInfo(HtmlDocument doc) { List<HtmlNode> m_unparsedProductInfoNodes = new List<HtmlNode>(); List<string> m_unparsedProductInfo = new List<string>(); //Base Node for part info string m_baseNode = @"//html[1]/body[1]/div[2]"; //Write part info to list m_unparsedProductInfoNodes.Add(doc.DocumentNode.SelectSingleNode(m_baseNode + @"/table[1]/tr[1]/td[1]/table[1]/tr[1]/td[1]")); //More lines of similar form will go here for more info //this retrieves digikey PN foreach(HtmlNode node in m_unparsedProductInfoNodes) { m_unparsedProductInfo.Add(node.InnerText); } return m_unparsedProductInfo; } Although the path I'm using appears to be "correct" I keep getting NULL when I look at the list "m_unparsedProductInfoNodes" Any idea what's going on here? I'll also add that if I do a "SelectNodes" on the baseNode it only returns a div... not sure what that indicates but it doesn't seem right.

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• two panel in java (first panel has fix size, second has remainder size)

  - by rodion

  I want some like this: http://eta.name/timages/JPanel_Layout.png (sorry, I have no reputation to post image) How make it ideologically correct?

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• Bash vs. Gnu screen : Replace Ctrl-A with Ctrl-Shift-A

  - by Stefan Lasiewski

  I'm a new user to GNU Screen. I've been using Bash for a very long time, and I want to give GNU Screen a try. As you know, GNU Screen uses 'C-a' (Control-A) as as the command character. Trouble is, this interferes with the Line Editing feature in Bash (and GNU Readline), because Control-A in Bash will Move to the start of the line." I know I can set the Command Character to another key sequence, like "^Q" or "``" (Backtick), but I have trouble finding another key sequence which isn't already in use (^Q is used by the terminal, backtick is used when writing shell scripts). It appears that the Command Character may only be one or two characters in length. Can I set the GNU Screen control character to be something like "Control-Shift-A"? (I can't use more then one hyperlink yet, so I cannot link to the Bash documentation)

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• iPhone: Switching from a map screen to a battle screen without the map progress being reset

  - by user298261

  Hello! I'm trying to make a role-playing game, and I want the game to work so that it transitions to the battle NIB for battles, then returns back to the map NIB afterward, yet still retain all the progress the player has made exploring the dungeon. I've tried proto-typing this with just a view-switcher, where one view creates content, and then switches to the other view, and then coming back from the other view. However, once the view goes back to the original, the original view is reset. How to make the data persistent so that it doesn't reset after every "battle"? Thanks!

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• Is there a rapid way to switch iChat screen sharing between users?

  - by craibuc

  John is sharing his screen with Jane. If Jane wants to share her screen with John, she must terminate this session, then choose 'Share My Screen with John', then John must accept request. Is there a more rapid way to do this?

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• WPF Applications Size Vs Winforms App Size

  - by jmayor

  Does WPF compiled code is bigger or smaller than Winform compiled code? Does WPF generates more code behind that Winform does? I have a Winform App and I want to make a new version on WPF. Customers get the updates of this app by dowloading it. So my question is, If I make the application now on WPF just using the same screens how bigger can it be the compiled solution compared to the WinForm version.

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• How do I replace the screen of a Dell Ispiron 1545?

  - by Ajus10

  I got a new screen for a Dell Inspiron 1545. The old screen says Dell Inspiron 1545 LP156WH1 (TL)(C1?) HD and the new one says Dell Inspiron 1545 LP156WH1 (TL)(C1?) LCD Does that make a difference? All I can get to work on the new screen is the backlight. The old screen had a crack. Now when I plug the old one in, it will not turn on at all. Could I have blown the inverter or messed up the cable?

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• How do I replace the screen of a Dell Inspiron 1545?

  - by Ajus10

  I got a new screen for a Dell Inspiron 1545. The old screen says Dell Inspiron 1545 LP156WH1 (TL)(C1?) HD and the new one says Dell Inspiron 1545 LP156WH1 (TL)(C1?) LCD Does that make a difference? All I can get to work on the new screen is the backlight. The old screen had a crack. Now when I plug the old one in, it will not turn on at all. Could I have blown the inverter or messed up the cable?

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• VirtualBox: How to full screen guest operation using all host resolution dimensions?

  - by Mendy

  How to full screen guest operation using all host resolution dimensions? Host screen resolution: 1920 x 1080 But the guest resolution is lower (1280 x 720 I'm think) even in full screen mode. (it's been wrapped with a black area around). What is the solution for this?

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• How can I automatically update the title in an xterm running screen?

  - by Nathan Fellman

  This is a bit of a followup to this question. I'm working in tcsh within GNU screen in an xterm. I have the following in my .cshrc: alias res_t 'xtset -t %h:%d "(%u:%g)" %e' # reset titlebar res_t # reset title right now alias precmd res_t And this works fine! However, when I run screen I see that the title doesn't get updated with the current directory. How can I make screen update the xterm title?

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• Set size of JTable in JScrollPane and in JPanel with the size of the JFrame

  - by user1761818

  I want the table with the same width as the frame and also when I resize the frame the table need to be resized too. I think setSize() of JTable doesn't work correctly. Can you help me? import java.awt.Color; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.SwingUtilities; public class Main extends JFrame { public Main() { setSize(400, 600); String[] columnNames = {"A", "B", "C"}; Object[][] data = { {"Moni", "adsad", 2}, {"Jhon", "ewrewr", 4}, {"Max", "zxczxc", 6} }; JTable table = new JTable(data, columnNames); JScrollPane tableSP = new JScrollPane(table); int A = this.getWidth(); int B = this.getHeight(); table.setSize(A, B); JPanel tablePanel = new JPanel(); tablePanel.add(tableSP); tablePanel.setBackground(Color.red); add(tablePanel); setTitle("Marks"); setLocationRelativeTo(null); setDefaultCloseOperation(EXIT_ON_CLOSE); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { Main ex = new Main(); ex.setVisible(true); } }); } }

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• Screen Snip/Capture Utility callable from API or command line?

  - by Raymond

  I am looking for a screen capture tool that is controllable from the command line. Ideally I would pass the filename, and possibly some options (capture mouse pointer or not, etc..), then it would take control, allow the user to select a region of the screen, and then save it to the specified file and disappear. screensnip.exe /output c:\users\public\pictures\screenshot.png /hidecursor user draws rectangle on screen control passes back to batch file, script, etc....

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• Windows 7: How to disable auto-maximize/resize window (aero-snap) when near screen edge?

  - by glenneroo

  Whenever I drag or resize a window near any edge or corner of either monitor, Windows wants to maximize or resize the window for me in several different ways: dragging a window near a corner offers resize to full-screen dragging directly to the corner offers half-screen maximize resizing to top or bottom edges offers a vertical maximize (one long strip from top to bottom) Actually, now that I think about it the 3rd one isn't so bad, its just the full and half-screen maximize features that drives me mad. Is there a registry hack to disable these settings, preferably independently?

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