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  • trying to copy a bitmap into the WMP Renderer -> upside down!

    - by Roey
    Hi All. I'm writing a video DMO decoder and trying to return a bitmap to the WMP renderer for display ... but WMP displays it upside down! This is the code : HBITMAP* hBmp = new HBITMAP(); int result; m_pScrRenderer->CreateFrame(hBmp, &result); ///This returns the HBITMAP handle. BITMAP bmStruct; memset(&bmStruct, 0, sizeof(BITMAP)); GetObject(*hBmp, sizeof(BITMAP), &bmStruct); int size = bmStruct.bmWidthBytes * bmStruct.bmHeight; memcpy(pbOutData, bmStruct.bmBits, size); //PBoutData is WMP's renderer buffer. This produces an upside down image. What should I change in this code? Thank You! Roey.

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  • can someone help me fix my code?

    - by user267490
    Hi, I have this code I been working on but I'm having a hard time for it to work. I did one but it only works in php 5.3 and I realized my host only supports php 5.0! do I was trying to see if I could get it to work on my sever correctly, I'm just lost and tired lol <?php //Temporarily turn on error reporting @ini_set('display_errors', 1); error_reporting(E_ALL); // Set default timezone (New PHP versions complain without this!) date_default_timezone_set("GMT"); // Common set_time_limit(0); require_once('dbc.php'); require_once('sessions.php'); page_protect(); // Image settings define('IMG_FIELD_NAME', 'cons_image'); // Max upload size in bytes (for form) define ('MAX_SIZE_IN_BYTES', '512000'); // Width and height for the thumbnail define ('THUMB_WIDTH', '150'); define ('THUMB_HEIGHT', '150'); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head> <title>whatever</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <style type="text\css"> .validationerrorText { color:red; font-size:85%; font-weight:bold; } </style> </head> <body> <h1>Change image</h1> <?php $errors = array(); // Process form if (isset($_POST['submit'])) { // Get filename $filename = stripslashes($_FILES['cons_image']['name']); // Validation of image file upload $allowedFileTypes = array('image/gif', 'image/jpg', 'image/jpeg', 'image/png'); if ($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_NO_FILE) { $errors['img_empty'] = true; } elseif (($_FILES[IMG_FIELD_NAME]['type'] != '') && (!in_array($_FILES[IMG_FIELD_NAME]['type'], $allowedFileTypes))) { $errors['img_type'] = true; } elseif (($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_INI_SIZE) || ($_FILES[IMG_FIELD_NAME]['error'] == UPLOAD_ERR_FORM_SIZE) || ($_FILES[IMG_FIELD_NAME]['size'] > MAX_SIZE_IN_BYTES)) { $errors['img_size'] = true; } elseif ($_FILES[IMG_FIELD_NAME]['error'] != UPLOAD_ERR_OK) { $errors['img_error'] = true; } elseif (strlen($_FILES[IMG_FIELD_NAME]['name']) > 200) { $errors['img_nametoolong'] = true; } elseif ( (file_exists("\\uploads\\{$username}\\images\\banner\\{$filename}")) || (file_exists("\\uploads\\{$username}\\images\\banner\\thumbs\\{$filename}")) ) { $errors['img_fileexists'] = true; } if (! empty($errors)) { unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file } // Create thumbnail if (empty($errors)) { // Make directory if it doesn't exist if (!is_dir("\\uploads\\{$username}\\images\\banner\\thumbs\\")) { // Take directory and break it down into folders $dir = "uploads\\{$username}\\images\\banner\\thumbs"; $folders = explode("\\", $dir); // Create directory, adding folders as necessary as we go (ignore mkdir() errors, we'll check existance of full dir in a sec) $dirTmp = ''; foreach ($folders as $fldr) { if ($dirTmp != '') { $dirTmp .= "\\"; } $dirTmp .= $fldr; mkdir("\\".$dirTmp); //ignoring errors deliberately! } // Check again whether it exists if (!is_dir("\\uploads\\$username\\images\\banner\\thumbs\\")) { $errors['move_source'] = true; unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file } } if (empty($errors)) { // Move uploaded file to final destination if (! move_uploaded_file($_FILES[IMG_FIELD_NAME]['tmp_name'], "/uploads/$username/images/banner/$filename")) { $errors['move_source'] = true; unlink($_FILES[IMG_FIELD_NAME]['tmp_name']); //cleanup: delete temp file } else { // Create thumbnail in new dir if (! make_thumb("/uploads/$username/images/banner/$filename", "/uploads/$username/images/banner/thumbs/$filename")) { $errors['thumb'] = true; unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file } } } } // Record in database if (empty($errors)) { // Find existing record and delete existing images $sql = "SELECT `bannerORIGINAL`, `bannerTHUMB` FROM `agent_settings` WHERE (`agent_id`={$user_id}) LIMIT 1"; $result = mysql_query($sql); if (!$result) { unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file die("<div><b>Error: Problem occurred with Database Query!</b><br /><br /><b>File:</b> " . __FILE__ . "<br /><b>Line:</b> " . __LINE__ . "<br /><b>MySQL Error Num:</b> " . mysql_errno() . "<br /><b>MySQL Error:</b> " . mysql_error() . "</div>"); } $numResults = mysql_num_rows($result); if ($numResults == 1) { $row = mysql_fetch_assoc($result); // Delete old files unlink("/uploads/$username/images/banner/" . $row['bannerORIGINAL']); //delete OLD source file unlink("/uploads/$username/images/banner/thumbs/" . $row['bannerTHUMB']); //delete OLD thumbnail file } // Update/create record with new images if ($numResults == 1) { $sql = "INSERT INTO `agent_settings` (`agent_id`, `bannerORIGINAL`, `bannerTHUMB`) VALUES ({$user_id}, '/uploads/$username/images/banner/$filename', '/uploads/$username/images/banner/thumbs/$filename')"; } else { $sql = "UPDATE `agent_settings` SET `bannerORIGINAL`='/uploads/$username/images/banner/$filename', `bannerTHUMB`='/uploads/$username/images/banner/thumbs/$filename' WHERE (`agent_id`={$user_id})"; } $result = mysql_query($sql); if (!$result) { unlink("/uploads/$username/images/banner/$filename"); //cleanup: delete source file unlink("/uploads/$username/images/banner/thumbs/$filename"); //cleanup: delete thumbnail file die("<div><b>Error: Problem occurred with Database Query!</b><br /><br /><b>File:</b> " . __FILE__ . "<br /><b>Line:</b> " . __LINE__ . "<br /><b>MySQL Error Num:</b> " . mysql_errno() . "<br /><b>MySQL Error:</b> " . mysql_error() . "</div>"); } } // Print success message and how the thumbnail image created if (empty($errors)) { echo "<p>Thumbnail created Successfully!</p>\n"; echo "<img src=\"/uploads/$username/images/banner/thumbs/$filename\" alt=\"New image thumbnail\" />\n"; echo "<br />\n"; } } if (isset($errors['move_source'])) { echo "\t\t<div>Error: Failure occurred moving uploaded source image!</div>\n"; } if (isset($errors['thumb'])) { echo "\t\t<div>Error: Failure occurred creating thumbnail!</div>\n"; } ?> <form action="" enctype="multipart/form-data" method="post"> <input type="hidden" name="MAX_FILE_SIZE" value="<?php echo MAX_SIZE_IN_BYTES; ?>" /> <label for="<?php echo IMG_FIELD_NAME; ?>">Image:</label> <input type="file" name="<?php echo IMG_FIELD_NAME; ?>" id="<?php echo IMG_FIELD_NAME; ?>" /> <?php if (isset($errors['img_empty'])) { echo "\t\t<div class=\"validationerrorText\">Required!</div>\n"; } if (isset($errors['img_type'])) { echo "\t\t<div class=\"validationerrorText\">File type not allowed! GIF/JPEG/PNG only!</div>\n"; } if (isset($errors['img_size'])) { echo "\t\t<div class=\"validationerrorText\">File size too large! Maximum size should be " . MAX_SIZE_IN_BYTES . "bytes!</div>\n"; } if (isset($errors['img_error'])) { echo "\t\t<div class=\"validationerrorText\">File upload error occured! Error code: {$_FILES[IMG_FIELD_NAME]['error']}</div>\n"; } if (isset($errors['img_nametoolong'])) { echo "\t\t<div class=\"validationerrorText\">Filename too long! 200 Chars max!</div>\n"; } if (isset($errors['img_fileexists'])) { echo "\t\t<div class=\"validationerrorText\">An image file already exists with that name!</div>\n"; } ?> <br /><input type="submit" name="submit" id="image1" value="Upload image" /> </form> </body> </html> <?php ################################# # # F U N C T I O N S # ################################# /* * Function: make_thumb * * Creates the thumbnail image from the uploaded image * the resize will be done considering the width and * height defined, but without deforming the image * * @param $sourceFile Path anf filename of source image * @param $destFile Path and filename to save thumbnail as * @param $new_w the new width to use * @param $new_h the new height to use */ function make_thumb($sourceFile, $destFile, $new_w=false, $new_h=false) { if ($new_w === false) { $new_w = THUMB_WIDTH; } if ($new_h === false) { $new_h = THUMB_HEIGHT; } // Get image extension $ext = strtolower(getExtension($sourceFile)); // Copy source switch($ext) { case 'jpg': case 'jpeg': $src_img = imagecreatefromjpeg($sourceFile); break; case 'png': $src_img = imagecreatefrompng($sourceFile); break; case 'gif': $src_img = imagecreatefromgif($sourceFile); break; default: return false; } if (!$src_img) { return false; } // Get dimmensions of the source image $old_x = imageSX($src_img); $old_y = imageSY($src_img); // Calculate the new dimmensions for the thumbnail image // 1. calculate the ratio by dividing the old dimmensions with the new ones // 2. if the ratio for the width is higher, the width will remain the one define in WIDTH variable // and the height will be calculated so the image ratio will not change // 3. otherwise we will use the height ratio for the image // as a result, only one of the dimmensions will be from the fixed ones $ratio1 = $old_x / $new_w; $ratio2 = $old_y / $new_h; if ($ratio1 > $ratio2) { $thumb_w = $new_w; $thumb_h = $old_y / $ratio1; } else { $thumb_h = $new_h; $thumb_w = $old_x / $ratio2; } // Create a new image with the new dimmensions $dst_img = ImageCreateTrueColor($thumb_w, $thumb_h); // Resize the big image to the new created one imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y); // Output the created image to the file. Now we will have the thumbnail into the file named by $filename switch($ext) { case 'jpg': case 'jpeg': $result = imagepng($dst_img, $destFile); break; case 'png': $result = imagegif($dst_img, $destFile); break; case 'gif': $result = imagejpeg($dst_img, $destFile); break; default: //should never occur! } if (!$result) { return false; } // Destroy source and destination images imagedestroy($dst_img); imagedestroy($src_img); return true; } /* * Function: getExtension * * Returns the file extension from a given filename/path * * @param $str the filename to get the extension from */ function getExtension($str) { return pathinfo($str, PATHINFO_EXTENSION); } ?>

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  • Python: mysqldb install error

    - by Grenko
    So i've been pulling my hair out trying to install the mysqldb package. When i run the build i get a long transcript of errors, heres just part of it, i would posit it all but its huge list of errors [rv@med240-183 MySQL-python-1.2.3c1]$ sudo python setup.py build [sudo] password for rv: running build running build_py copying MySQLdb/release.py -> build/lib.linux-i686-2.6/MySQLdb running build_ext building '_mysql' extension gcc -pthread -fno-strict-aliasing -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i586 -mtune=generic -fasynchronous-unwind-tables -D_GNU_SOURCE -fPIC -fPIC -Dversion_info=(1,2,3,'gamma',1) -D__version__=1.2.3c1 -I/usr/include/mysql -I/usr/include/python2.6 -c _mysql.c -o build/temp.linux-i686-2.6/_mysql.o -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -fasynchronous-unwind-tables -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -fno-strict-aliasing -fwrapv -fPIC -DUNIV_LINUX _mysql.c:36:23: error: my_config.h: No such file or directory _mysql.c:38:19: error: mysql.h: No such file or directory Any ideas?

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  • remove image from tableViewCell created programatically

    - by Ruthy
    Hello, I would like to move an imageView contained on a cell and it works but creating a new image at new position keeping old image (then two are shown). How could I remove old one?? used code: UIImage *cellImage = [UIImage imageNamed:(@"%@", showIconName)]; UIImageView *imageViewToPutInCell = [[UIImageView alloc] initWithImage:cellImage]; imageViewToPutInCell.frame = CGRectMake(iconPos, 7, cellImage.size.width, cellImage.size.height); [cell.contentView addSubview:imageViewToPutInCell]; every time that I reload tableView, it creates a new overlapped image. [cell.contentView removeFromSuperview]; used before, removes it but then new image is not created. Please help!! Thanx

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  • textbox disappears in paging - php

    - by fusion
    i'm calling the search.php page via ajax to search.html. the problem is, since i've implemented paging, the textbox with the search keyword from search.html 'disappears' when the user clicks the 'Next' button [because the page goes to search.php which has no textbox element] i'd like the textbox with the search keyword to be there, when the user goes through the records via paging. how'd i achieve this? search.html: <body> <form name="myform" class="wrapper"> <input type="text" name="q" onkeyup="showPage();" class="txt_search"/> <input type="button" name="button" onclick="showPage();" class="button"/> <p> <div id="txtHint"></div> <div id="page"></div> </form> </body> search.php [the relevant part]: $self = $_SERVER['PHP_SELF']; $limit = 5; //Number of results per page $numpages=ceil($totalrows/$limit); $query = $query." ORDER BY idQuotes LIMIT " . ($page-1)*$limit . ",$limit"; $result = mysql_query($query, $conn) or die('Error:' .mysql_error()); ?> <div class="caption">Search Results</div> <div class="center_div"> <table> <?php while ($row= mysql_fetch_array($result, MYSQL_ASSOC)) { $cQuote = highlightWords(htmlspecialchars($row['cQuotes']), $search_result); ?> <tr> <td style="text-align:right; font-size:15px;"><?php h($row['cArabic']); ?></td> <td style="font-size:16px;"><?php echo $cQuote; ?></td> <td style="font-size:12px;"><?php h($row['vAuthor']); ?></td> <td style="font-size:12px; font-style:italic; text-align:right;"><?php h($row['vReference']); ?></td> </tr> <?php } ?> </table> </div> <?php //Create and print the Navigation bar $nav=""; if($page > 1) { $nav .= "<a href=\"$self?page=" . ($page-1) . "&q=" .urlencode($search_result) . "\">< Prev</a>"; $first = "<a href=\"$self?page=1&q=" .urlencode($search_result) . "\"><< First</a>" ; } else { $nav .= "&nbsp;"; $first = "&nbsp;"; } for($i = 1 ; $i <= $numpages ; $i++) { if($i == $page) { $nav .= "<B>$i</B>"; }else{ $nav .= "<a href=\"$self?page=" . $i . "&q=" .urlencode($search_result) . "\">$i</a>"; } } if($page < $numpages) { $nav .= "<a href=\"$self?page=" . ($page+1) . "&q=" .urlencode($search_result) . "\">Next ></a>"; $last = "<a href=\"$self?page=$numpages&q=" .urlencode($search_result) . "\">Last >></a> "; } else { $nav .= "&nbsp;"; $last = "&nbsp;"; } echo "<br /><br />" . $first . $nav . $last; }

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  • How to design websites for all display sizes

    - by katie bekell
    I like to use a lot of unique graphics on my pages, which often results in making different page sizes depending on available screen width/height. Here are two examples: http://www.uvm.edu/~areid/homesite/ - the image floats at the bottom of my screen but on a larger browser, the image floats near the middle making it look off. It looks best when the bottom of the window aligns with the bottom of the image www.stevenlebel.com - it loads two different pages depending on what monitor size is detected. This seems like a lot of redundant coding. My question is, how can I make sliced/Photoshop images transition well to different screen sizes. Does Photoshop allow you to make DIVS instead of tables? Can i make each of the slices created by Photoshop grow/shrink when the browser window size changes? If anyone has any input on creating websites like this I would be very interested to hear what they have to say. Thanks Katie

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  • MySQL - Calculating fields on the fly vs storing calculated data

    - by Christian Varga
    Hi Everyone, I apologise if this has been asked before, but I can't seem to find an answer to a question that I have about calculating on the fly vs storing fields in a database. I read a few articles that suggested it was preferable to calculate when you can, but I would just like to know if that still applies to the following 2 examples. Example 1. Say you are storing data relating to a car. You store the fuel tank size in litres, and how many litres it uses per 100km. You also want to know how many KMs it can travel, which can be calculated from the tank size and economy. I see 2 ways of doing this: When a car is added or updated, calculate the amount of KMs and store this as a static field in the database. Every time a car is accessed, calculate the amount of KMs on the fly. Because the cars economy/tank size doesn't change (although it could be edited), the KMs is a pretty static value. I don't see why we would calculate it every single time the car is accessed. Wouldn't this waste cpu time as opposed to simply storing it in a separate field in the database and calculating only when a car is added or updated? My next example, which is almost an entirely different question (but on the same topic), relates to counting children. Let's say we have a app which has categories and items. We have a view where we display all the categories, and a count of all the items inside each category. Again, I'm wondering what's better. To perform a MySQL query to count all the items in each category every single time the page is accessed? Or store the count in a field in the categories table and update when an item is added / deleted? I know it is redundant to store anything that can be calculated, but I worry that calculating fields or counting records might be slow as opposed to storing the data in a field. If it's not then please let me know, I just want to learn about when to use either method. On a small scale I guess it wouldn't matter either way, but apps like Facebook, would they really count the amount of friends you have every time someone views your profile or would they just store it as a field? I'd appreciate any responses to both of these scenarios, and any resource that might explain the benefits of calculating vs storing. Thanks in advance, Christian

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  • zooming from a particular point

    - by Chandan Shetty SP
    I am using this code to zoom from a particular point CGPoint getCenterPointForRect(CGRect inRect) { CGRect screenRect = [[UIScreen mainScreen] bounds]; return CGPointMake((screenRect.size.height-inRect.origin.x)/2,(screenRect.size.width-inRect.origin.y)/2); } -(void) startAnimation { CGPoint centerPoint = getCenterPointForRect(self.view.frame); self.view.transform = CGAffineTransformMakeTranslation(centerPoint.x, centerPoint.y); self.view.transform = CGAffineTransformScale( self.view.transform , 0.001, 0.001); [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:kTransitionDuration]; self.view.transform = CGAffineTransformIdentity; [UIView commitAnimations]; } Its not working. What is the correct way to do zooming from a particular point.

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  • Issues with Firefox 3.6 & SWFObject 2.2

    - by Wopdoowop
    I've searched the net for a solution but still haven't found one yet. I'm on Mac OSX and I use FlashBuilder. I try to publish a movie with the values of 100% for the width & the height. These are the values I use both in SWFObject and the CSS. Flash doesn't display in Firefox but displays on Opera, Chrome & Safari. SWFObject test suite displays fine though! I've tried to replicate the test suite settings but it doesn't work :( The only way I can get the movie to display in Firefox is by setting the height value to a fixed pixel size in the flash content div, which defeats the purpose of using percentage values in the first place :) I've tried most recommendations such as putting the script in the head tag as well as a few others but nothing works except setting a fixed height size in the CSS. Help would be most appreciated! ;)

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  • spring mvc forward to jsp

    - by jerluc
    I currently have my web.xml configured to catch 404s and send them to my spring controller which will perform a search given the original URL request. The functionality is all there as far as the catch and search go, however the trouble begins to arise when I try to return a view. <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver" p:order="1"> <property name="mediaTypes"> <map> <entry key="json" value="application/json" /> <entry key="jsp" value="text/html" /> </map> </property> <property name="defaultContentType" value="application/json" /> <property name="favorPathExtension" value="true" /> <property name="viewResolvers"> <list> <bean class="org.springframework.web.servlet.view.BeanNameViewResolver" /> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value="" /> </bean> </list> </property> <property name="defaultViews"> <list> <bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" /> </list> </property> <property name="ignoreAcceptHeader" value="true" /> </bean> This is a snippet from my MVC config file. The problem lies in resolving the view's path to the /WEB-INF/jsp/ directory. Using a logger in my JBoss setup, I can see that when I test this search controller by going to a non-existent page, the following occurs: Server can't find the request Request is sent to 404 error page (in this case my search controller) Search controller performs search Search controller returns view name (for this illustration, we'll assume test.jsp is returned) Based off of server logger, I can see that org.springframework.web.servlet.view.JstlView is initialized once my search controller returns the view name (so I can assume it is being picked up correctly by the InternalResourceViewResolver) Server attempts to return content to browser resulting in a 404! A couple things confuse me about this: I'm not 100% sure why this isn't resolving when test.jsp clearly exists under the /WEB-INF/jsp/ directory. Even if there was some other problem, why would this result in a 404? Shouldn't a 404 error page that results in another 404 theoretically create an infinite loop? Thanks for any help or pointers! Controller class [incomplete]: @Controller public class SiteMapController { //-------------------------------------------------------------------------------------- @Autowired(required=true) private SearchService search; @Autowired(required=true) private CatalogService catalog; //-------------------------------------------------------------------------------------- @RequestMapping(value = "/sitemap", method = RequestMethod.GET) public String sitemap (HttpServletRequest request, HttpServletResponse response) { String forwardPath = ""; try { long startTime = System.nanoTime() / 1000000; String pathQuery = (String) request.getAttribute("javax.servlet.error.request_uri"); Scanner pathScanner = new Scanner(pathQuery).useDelimiter("\\/"); String context = pathScanner.next(); List<ProductLightDTO> results = new ArrayList<ProductLightDTO>(); StringBuilder query = new StringBuilder(); String currentValue; while (pathScanner.hasNext()) { currentValue = pathScanner.next().toLowerCase(); System.out.println(currentValue); if (query.length() > 0) query.append(" AND "); if (currentValue.contains("-")) { query.append("\""); query.append(currentValue.replace("-", " ")); query.append("\""); } else { query.append(currentValue + "*"); } } //results.addAll(this.doSearch(query.toString())); System.out.println("Request: " + pathQuery); System.out.println("Built Query:" + query.toString()); //System.out.println("Result size: " + results.size()); long totalTime = (System.nanoTime() / 1000000) - startTime; System.out.println("Total TTP: " + totalTime + "ms"); if (results == null || results.size() == 0) { forwardPath = "home.jsp"; } else if (results.size() == 1) { forwardPath = "product.jsp"; } else { forwardPath = "category.jsp"; } } catch (Exception ex) { System.err.println(ex); } System.out.println("Returning view: " + forwardPath); return forwardPath; } }

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  • Python json memory bloat

    - by Anoop
    import json import time from itertools import count def keygen(size): for i in count(1): s = str(i) yield '0' * (size - len(s)) + str(s) def jsontest(num): keys = keygen(20) kvjson = json.dumps(dict((keys.next(), '0' * 200) for i in range(num))) kvpairs = json.loads(kvjson) del kvpairs # Not required. Just to check if it makes any difference print 'load completed' jsontest(500000) while 1: time.sleep(1) Linux top indicates that the python process holds ~450Mb of RAM after completion of 'jsontest' function. If the call to 'json.loads' is omitted then this issue is not observed. A gc.collect after this function execution does releases the memory. Looks like the memory is not held in any caches or python's internal memory allocator as explicit call to gc.collect is releasing memory. Is this happening because the threshold for garbage collection (700, 10, 10) was never reached ? I did put some code after jsontest to simulate threshold. But it didn't help.

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  • C# StringBuilder question

    - by andrew
    in a C# file i have a class Archiver { [DllImport("Archiver.dll")] public static extern void archive(string data, StringBuilder response); } string data is an input, and StringBuilder response is where the function writes something the archive function prototype (written in C) looks like this: void archive(char * dataChr, char * outChr); and it receives a string in dataChr, and then does a strcpy(outChr,"some big text"); from C# i call it something like this: string message = "some text here"; StringBuilder response = new StringBuilder(10000); Archiver.archive(message,response); this works, but the problem, as you might see is that i give a value to the StringBuilder size, but the archive function might give back a (way) larger text than the size i've given to my StringBuilder. any way to fix this?

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  • Saving WPF WIndow and Position

    - by moogs
    What would be the best way to save the window position and size in a WPF app? Currently, I'm saving the window size and position of a WPF App. Here are the events I handle: SourceInitialized : The saved info is loaded on to the window WindowClosing : The current info is saved to the backing store (I copied this from an example). The problem is, when the window is minimized and restored, the settings from the last WindowClosing is retrieved. Now, the StateChanged event fire AFTER the window has minimized, so it does not seem to be what i need. Thanks

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  • How to download file into string with progress callback?

    - by Kaminari
    I would like to use the WebClient (or there is another better option?) but there is a problem. I understand that opening up the stream takes some time and this can not be avoided. However, reading it takes a strangely much more amount of time compared to read it entirely immediately. Is there a best way to do this? I mean two ways, to string and to file. Progress is my own delegate and it's working good. FIFTH UPDATE: Finally, I managed to do it. In the meantime I checked out some solutions what made me realize that the problem lies elsewhere. I've tested custom WebResponse and WebRequest objects, library libCURL.NET and even Sockets. The difference in time was gzip compression. Compressed stream lenght was simply half the normal stream lenght and thus download time was less than 3 seconds with the browser. I put some code if someone will want to know how i solved this: (some headers are not needed) public static string DownloadString(string URL) { WebClient client = new WebClient(); client.Headers["User-Agent"] = "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/532.5 (KHTML, like Gecko) Chrome/4.1.249.1045 Safari/532.5"; client.Headers["Accept"] = "application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5"; client.Headers["Accept-Encoding"] = "gzip,deflate,sdch"; client.Headers["Accept-Charset"] = "ISO-8859-2,utf-8;q=0.7,*;q=0.3"; Stream inputStream = client.OpenRead(new Uri(URL)); MemoryStream memoryStream = new MemoryStream(); const int size = 32 * 4096; byte[] buffer = new byte[size]; if (client.ResponseHeaders["Content-Encoding"] == "gzip") { inputStream = new GZipStream(inputStream, CompressionMode.Decompress); } int count = 0; do { count = inputStream.Read(buffer, 0, size); if (count > 0) { memoryStream.Write(buffer, 0, count); } } while (count > 0); string result = Encoding.Default.GetString(memoryStream.ToArray()); memoryStream.Close(); inputStream.Close(); return result; } I think that asyncro functions will be almost the same. But i will simply use another thread to fire this function. I dont need percise progress indication.

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  • Set height of Flex Accordion to height of tallest child

    - by Mike Deck
    By default the height of an Flex Accordion container is the height of the initially selected child. I'd like to be able to set the height to the tallest child so that no resizing or scrolling is necessary when other children are selected. I do not want to use the resizeToContent property. I want the size of the container to stay constant no matter what child is selected. My current thought is to extend the accordion class setting the creation policy to "all" and then override the measure function to loop through all the children and find the tallest one and use that for the height. This seems a little kludgy though, so I'd like to know if there is a better approach. Ultimately my question is: is there a way to set the size of an accordion container such that the container never resizes and scoll bars are never necessary to display any of the children?

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  • Center an Image vertically and horizontally? css

    - by acidzombie24
    How do i vertically and horizontally center an image when i do not know the size of it? I asked this question and someone suggested using a table. This isnt the first time i heard a table can do it but i tried without luck. Searching SO only got me results when i do know the size of the image. How do i do this with a table? NOTE: Javascript/jquery is not preferred but if theres a solution with it i'll be open to it.

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  • Iterating through same form elements

    - by Hulk
    If a form has same tag repeatedly. How to get its value in javascript. <script> function validate() { //get all values of elmone } </script> <form> <input type="text" size="15" value="Hello World" name="elmOne"> <input type="text" size="15" value="next Hello World" name="elmOne"> <input type="button" onclick="javascript:validate()" value="validate"> </form> Thanks..

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  • Python: Unpack arbitary length bits for database storage

    - by sberry2A
    I have a binary data format consisting of 18,000+ packed int64s, ints, shorts, bytes and chars. The data is packed to minimize it's size, so they don't always use byte sized chunks. For example, a number whose min and max value are 31, 32 respectively might be stored with a single bit where the actual value is bitvalue + min, so 0 is 31 and 1 is 32. I am looking for the most efficient way to unpack all of these for subsequent processing and database storage. Right now I am able to read any value by using either struct.unpack, or BitBuffer. I use struct.unpack for any data that starts on a bit where (bit-offset % 8 == 0 and data-length % 8 == 0) and I use BitBuffer for anything else. I know the offset and size of every packed piece of data, so what is going to be the fasted way to completely unpack them? Many thanks.

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  • How can I keep data that a user has entered in my jQuery/Ajax pop-up form?

    - by Lucas McCoy
    I have a form on a website I'm working (you can see it here) on that allows my users to give feedback. It's an jQuery/Ajax popup form: $('.contact_us').click(function(){ var boxy_content; boxy_content += "<div style=\"width:300px; height:300px \"><form id=\"feedbacked\">"; boxy_content += "<p>Subject<br /><input type=\"text\" name=\"subject\" id=\"subject\" size=\"33\" /></p><p>Your E-Mail Address:<br /><input type=\"text\" name=\"your_email\" size=\"33\" /></p><p>Comment:<br /><textarea name=\"comment\" id=\"comment\" cols=\"33\" rows=\"5\"></textarea></p><br /><input type=\"submit\" name=\"submit\" value=\"Send >>\" />"; boxy_content += "</form></div>"; // Other code here... Is there anyway I can save what the user has entered (in case they see our error message when they try to submit)?

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  • Distance between numpy arrays, columnwise

    - by Jaapsneep
    I have 2 arrays in 2D, where the column vectors are feature vectors. One array is of size F x A, the other of F x B, where A << B. As an example, for A = 2 and F = 3 (B can be anything): arr1 = np.array( [[1, 4], [2, 5], [3, 6]] ) arr2 = np.array( [[1, 4, 7, 10, ..], [2, 5, 8, 11, ..], [3, 6, 9, 12, ..]] ) I want to calculate the distance between arr1 and a fragment of arr2 that is of equal size (in this case, 3x2), for each possible fragment of arr2. The column vectors are independent of each other, so I believe I should calculate the distance between each column vector in arr1 and a collection of column vectors ranging from i to i + A from arr2 and take the sum of these distances (not sure though). Does numpy offer an efficient way of doing this, or will I have to take slices from the second array and, using another loop, calculate the distance between each column vector in arr1 and the corresponding column vector in the slice?

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  • Border in DrawRectangle

    - by undsoft
    Well, I'm coding the OnPaint event for my own control and it is very nescessary for me to make it pixel-accurate. I've got a little problem with borders of rectangles. See picture: These two rectangles were drawn with the same location and size parameters, but using different size of the pen. See what happend? When border became larger it has eaten the free space before the rectangle (on the left). I wonder if there is some kind of property which makes border be drawn inside of the rectangle, so that the distance to rectangle will always be the same. Thanks.

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  • Excel 2007 - Worksheet is larger than the window

    - by Chris
    Hi This is an odd problem but frustrating none the less. I have a worksheet saved which is larger than the Excel 2007 "workarea". This means when I open the worksheet I cannot access the corners of the worksheet to reduce the size and the worksheets title bar area (with move,size,minimise etc) is hidden beneath the ribbon , even if I remove the ribbon , I still can't see the title bar. In Excel 2003 I've had a similar effect but I've always been able to hit the "alt" key to access the "Move" option. However in Excel 2007 , hitting "alt" brings up some shortcuts for the ribbon etc but I can't access the worksheet options. Has anyone else know how to access the worksheet drop down when this happens?

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  • java and mysql geting shortest path from to two points

    - by shaharnakash
    hi i have a mysql database that hold id ,name , oneid , twoid , size 1 1 1 2 4 2 2 1 3 1 3 3 2 1 74 4 4 2 4 2 5 5 2 5 12 6 6 4 2 12 7 7 4 6 74 8 8 4 7 12 9 9 3 5 32 10 10 3 8 22 11 11 5 3 66 12 12 5 6 76 13 13 5 9 33 14 14 6 10 11 15 15 6 7 21 16 16 8 3 12 17 17 8 9 10 18 18 9 8 2 19 19 9 10 72 20 20 10 6 31 21 21 10 7 7 22 22 10 9 18 23 23 7 6 8 i want to do Dijkstra algorithm but i cant get the details right if i got the contents to class Conn id ,name , oneid , twoid , size how do i find the path from oneid 1 to twoid 7 and believe me i triad many Dijkstra algorithms so please dont give me only reference

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  • How to use UIWebView to get scrolling text ?

    - by srikanth rongali
    Hi, In my iPhone application I need a scrolling text. I had the text to be displayed and scrolled up and down but I could not get customized text. I mean all the text is of same font. I need some different font size text . I am using UITextView, but UITextView do not support customized text in it. How can I have the scrolling text which has different font size. I read that to use UIWebView for this. But, I could not understand how to use it. the text contains no url's no editing.(It need to be just static text to read). How can I do this ? Thank you.

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  • iPhone - Make loadView entries fill up parent view?

    - by Eli
    I have a loadView call that basically places one view at the top (like a header) and one at the bottom (like a footer). It's possible via a passed in parameter to not have a header or a footer, to hide them later, or to resize the view. I have all this working, but it's very susceptible to breaking because the views can go in various places of various sizes and all must be manually set to the correct size or they will not use up all the space. I want one in between the two of them that automatically resizes to fill whatever space is not taken by the others. loadView doesn't seem to be able to obtain the size of its parent's frame (or where it's being fit in, exactly), nor do I see an obvious way to just put the center view at a certain position and have its width and height automatically adapted. Any ideas? If I'm not explaining myself well enough and you know Java Swing, think BorderLayout with a BorderLayout.NORTH, BorderLayout.SOUTH, and BorderLayout.CENTER component.

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