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• Outlook Plug-In for custom CRM

  - by Optimal Solutions

  I would like to write a plug-in that will allow a custom written CRM to read and write to their local Outlook client. I know that this poses a security concern. But, my clients are asking that their CRM "be connected" to Outlook. They would like to be able to do the following: A) When a contact sends them an email (reply or free standing email), they'd like the details of this email to go INTO the CRM. Yep. They would like me to save the body, time and date it was sent, etc. B) They want to be able to send new emails (or replies to existing emails) from within the CRM itself. Basically, "a form that looks like Outlook's send/reply email form". C) Want the ability to search for contacts and the related emails with a search for tags/keywords facility. (i.e. if a product name or code appears in an email then they want the email returned in the search). D) Having performed a search of many contacts, they will want to prepare a mailer and shoot out some sort of email announcement to their qualified leads. This could be 50, 100, or more persons. So its got to be able to allow bulk mailing. E) Given a list of new prospects, that arent currently contacts in the CRM, they will want to do the same and if they get replies from this mailer to the prospects, the will want the replies to be saved in the DB and contacts be inserted into the DB. F) They would like to be able to utilize the calendar and task list facilities of Outlook from the CRM, as well. More or less, they want this pretty basic (as it is today) CRM that I created to integrate with Outlook and have it do so seamlessly as if it was an add-on to the CRM. A plug-in is what I am thinking... But, I dont know where to begin. My environment is Windows XP/Vista and is going to be ASP.NET and I am going to use the VB.NET language to accomplish this. What do I need? Are there resources out there that can describe how to build a plug-in to Outlook as I have been asked to? This is not Exchange, none of the clients use exchange (not so far). They all run Outlook. Mostly 2003. Most clients are XP right now but some are upgrading to Vista. For some reason I cant seem to wrap my head around this. I think the whole security issue is thwarting my ability to see past what is probably a simple thing. The client doesnt want to be prompted by any security messages asking them if they are sure they want to send 382 emails to their contacts. Not once and certainly not 382 times. Where do I begin? I've searched the internet for similar but mainly what I found are already-written products and I've got to write this from scratch.

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• curl_init undefined?

  - by udaya

  Hi I am importing the contacts from gmail to my page ..... The process doesnot work due to this error 'curl_init' is not defined The suggestion i got is to 1.uncomment destination curl.dll 2.copy the following libraries to the windows/system32 dir. ssleay32.dll libeay32.dll 3.copy php_curl.dll to windows/system32 After trying all these i refreshed my xampp Even then error occurs This is my page where i am trying to import the gmail contacts ` // set URL and other appropriate options curl_setopt($ch, CURLOPT_URL, "http://www.example.com/"); curl_setopt($ch, CURLOPT_HEADER, 0); // grab URL and pass it to the browser curl_exec($ch); // close cURL resource, and free up system resources curl_close($ch); ? "HOSTED_OR_GOOGLE", "Email" = $_POST['Email'], echo "Passwd" = $_POST['Passwd'], "service" = "cp", "source" = "tutsmore/1.2" ); //Now we are going to post these datas to the clientLogin url. // Initialize the curl object with the $curl = curl_init($clientlogin_url); //Make the post true curl_setopt($curl, CURLOPT_POST, true); //Passing the above array of parameters. curl_setopt($curl, CURLOPT_POSTFIELDS, $clientlogin_post); //Set this for authentication and ssl communication. curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_ANY); //provide false to not to check the server for the certificate. curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); //Tell curl to just don't echo the data but return it to a variable. curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); //The variable containing response $response = curl_exec($curl); //Check whether the user is successfully login using the preg_match and save the auth key if the user //is successfully logged in preg_match("/Auth=([a-z0-9_-]+)/i", $response, $matches); $auth = $matches[1]; // Include the Auth string in the headers $headers = array("Authorization: GoogleLogin auth=" . $auth); // Make the request to the google contacts feed with the auth key $curl = curl_init('http://www.google.com/m8/feeds/contacts/default/full?max-results=10000'); //passing the headers of auth key. curl_setopt($curl, CURLOPT_HTTPHEADER, $headers); //Return the result in a variable curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); //the variable with the response. $feed = curl_exec($curl); //Create empty array of contacts echo "contacts".$contacts=array(); //Initialize the DOMDocument object $doc=new DOMDocument(); //Check whether the feed is empty //If not empty then load that feed. if (!empty($feed)) $doc-loadHTML($feed); //Initialize the domxpath object and provide the loaded feed $xpath=new DOMXPath($doc); //Get every entry tags from the feed. $query="//entry"; $data=$xpath-query($query); //Process each entry tag foreach ($data as $node) { //children of each entry tag. $entry_nodes=$node-childNodes; //Create a temproray array. $tempArray=array(); //Process the child node of the entry tag. foreach($entry_nodes as $child) { //get the tagname of the child node. $domNodesName=$child-nodeName; switch($domNodesName) { case 'title' : { $tempArray['fullName']=$child-nodeValue; } break; case 'email' : { if (strpos($child-getAttribute('rel'),'home')!==false) $tempArray['email_1']=$child-getAttribute('address'); elseif(strpos($child-getAttribute('rel'),'work')!=false) $tempArray['email_2']=$child-getAttribute('address'); elseif(strpos($child-getAttribute('rel'),'other')!==false) $tempArray['email_3']=$child-getAttribute('address'); } break; } } if (!empty($tempArray['email_1']))$contacts[$tempArray['email_1']]=$tempArray; if(!empty($tempArray['email_2'])) $contacts[$tempArray['email_2']]=$tempArray; if(!empty($tempArray['email_3'])) $contacts[$tempArray['email_3']]=$tempArray; } foreach($contacts as $key=$val) { //Echo the email echo $key.""; } } else { //The form ? " method="POST" Email: Password: tutsmore don't save your email and password trust us. ` code is completely provided for debugging if any optimization is needed i will try to optimize the code

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• PROJECT HELP NEEDED. SOME BASIC CONCEPTS GREAT CONFUSION BECAUSE OF LACK OF PROPER MATERIAL PLEASE H

  - by user287745

  Task ATTENDENCE RECORDER AND MANAGEMENT SYSTEM IN DISTRIBUTED ENVIRONMENT ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Example implementation needed. a main server in each lab where the operator punches in the attendence of the student. =========================================================== scenerio:- a college, 10 departments, all departments have a computer lab with 60-100 computers, the computers within each lab are interconnected and all computers in any department have to dail to a particular number (THE NUMBER GIVEN BY THE COLLEGE INTERNET DEPARTMENT) to get connected to the internet. therefore safe to assume that there is a central location to which all the computers in the college are connected to. there is a 'students attendence portal' which can be accessed using internet explorer, students enter there id and get the particular attendence record regarding to the labs only. a description of the working is like:- 1) the user will select which department, which year has arrived to the lab 2) the selection will give the user a return of all the students name and there roll numbers belonging to that department; 'with a check box to "TICK MARK IF THE STUDENT IS PRESENT" ' 3) A SUBMIT BUTTON when pressed reads the 'id' of the checkbox to determine the "particular count number of the student" from that an id of the student is constructed and that id is inserted with a present. (there is also date and time and much more to normalize the db and to avoid conflicts and keep historic records etc but that you will have to assume) steps taken till this date:- ( please note we are not computer students, we are to select something of some other line as a project!, as you will read in my many post 'i" have designed small websites just out of liking. have never ever done any thing official to implement like this.) * have made the database fully normalized. * have made the website which does the functions required on the database. Testing :- deployed the db and site on a free aspspider server and it worked. tested from several computers. Now the problem please help thank youuuuuuuu a practical demonstration has to be done within the college network. no internet! we have been assigned a lab - 60 computers- to demonstrate. (please dont give replies as 60 computers only! is not a big deal one CPU can manage it. i know that; IT IS A HYPOTHETICAL SITUATION WHERE WE ASSUME THAT 60 IS NOT 60 BUT ITS LIKE 60,000 COMPUTERS) 1a) make a web server, yes iis and put files in www folder and configure server to run aspx files- although a link to a step by step guide will be appreciated)\ ? which version of windows should i ask for xp or win server 2000 something? 2a) make a database server. ( well yes install sql server 2005, okay but then what? just put the database file on a pc share it and append the connection string to the share? ) 3a) make the site accessible from the remaining computers ? http://localhost/sitename ? all users "being operators of the particular lab" have the right to edit, write or delete(in dispute), thereby any "users" who hate our program can make the database inconsistent by accessing te same record and doing different edits and then complaining? so how to prevent this? you know something like when the db table is being written to others can only read but not write.. one big confusion:- IN DISTRIBUTED ENVIRONMENT "how to implement this" where does "distributed environment" come in! meaning :- alright the labs are in different departments but the "database server will be one" the "web server will be one" so whats distributed!?

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• Smart auto detect and replace URLs with anchor tags

  - by Robert Koritnik

  I've written a regular expression that automatically detects URLs in free text that users enter. This is not such a simple task as it may seem at first. Jeff Atwood writes about it in his post. His regular expression works, but needs extra code after detection is done. I've managed to write a regular expression that does everything in a single go. This is how it looks like (I've broken it down into separate lines to make it more understandable what it does): 1 (?<outer>\()? 2 (?<scheme>http(?<secure>s)?://)? 3 (?<url> 4 (?(scheme) 5 (?:www\.)? 6 | 7 www\. 8 ) 9 [a-z0-9] 10 (?(outer) 11 [-a-z0-9/+&@#/%?=~_()|!:,.;cšžcd]+(?=\)) 12 | 13 [-a-z0-9/+&@#/%?=~_()|!:,.;cšžcd]+ 14 ) 15 ) 16 (?<ending>(?(outer)\))) As you may see, I'm using named capture groups (used later in Regex.Replace()) and I've also included some local characters (cšžcd), that allow our localised URL to be parsed as well. You can easily omit them if you'd like. Anyway. Here's what it does (referring to line numbers): 1 - detects if URL starts with open braces (is contained inside braces) and stores it in "outer" named capture group 2 - checks if it starts with URL scheme also detecting whether scheme is SSL or not 3 - starts parsing URL itself (will store it in "url" named capture group) 4-8 - if statement that says: if "sheme" was present then www. part is optional, otherwise mandatory for a string to be a link (so this regular expression detects all strings that start with either http or www) 9 - first character after http:// or www. should be either a letter or a number (this can be extended if you would like to cover even more links, but I've decided to omit other characters because I can't remember a link that would start with some other character 10-14 - if statement that says: if "outer" (braces) was present capture everything up to the last closing braces otherwise capture all 15 - closes the named capture group for URL 16 - if open braces was present, capture closing braces as well and store it in "ending" named capture group First and last line used to have \s* in them as well, so user could also write open braces and put a space inside before pasting link. Anyway. My code that does link replacement with actual anchor HTML elements looks exactly like this: value = Regex.Replace( value, @"(?<outer>\()?(?<scheme>http(?<secure>s)?://)?(?<url>(?(scheme)(?:www\.)?|www\.)[a-z0-9](?(outer)[-a-z0-9/+&@#/%?=~_()|!:,.;cšžcd]+(?=\))|[-a-z0-9/+&@#/%?=~_()|!:,.;cšžcd]+))(?<ending>(?(outer)\)))", "${outer}<a href=\"http${secure}://${url}\">http${secure}://${url}</a>${ending}", RegexOptions.Compiled | RegexOptions.CultureInvariant | RegexOptions.IgnoreCase); As you can see I'm using named capture groups to replace link with an Anchor tag: ${outer}<a href=\"http${secure}://${url}\">http${secure}://${url}</a>${ending} I could as well omit the http(s) part in anchor display to make links look friendlier, but for now I decided not to. Question I would like for my links to be replaced with shortenings as well. So when user copies a very long links (for instance if they would copy a link from google maps that usually generates long links I would like to shorten the visible part of the anchor tag. Link would work, but visible part of an anchor tag would be shortened to some number of characters. Does the replace string support notations like that so I can stil use a singe Regex.Replace() call?

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• iphone sdk - problem pasting into current text location

  - by norskben

  Hi guys I'm trying to paste text right into where the cursor currently is. I have been trying to do what it says at: - http://dev.ragfield.com/2009/09/insert-text-at-current-cursor-location.html The main deal is that I can't just go textbox1.text (etc) because the textfield is in the middle of a custom cell. I want to just have some text added to where the cursor is (when I press a custom key on a keyboard). -I just want to paste a decimal into the textbox... The error I get is: 2010-05-15 22:37:20.797 PageControl[37962:207] * -[MyDetailController paste:]: unrecognized selector sent to instance 0x1973d10 2010-05-15 22:37:20.797 PageControl[37962:207] Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '** -[MyDetailController paste:]: unrecognized selector sent to instance 0x1973d10' Note: I have access to the textfield tag (if that helps?) I'm a little past the beginner stage in objective-c, but still not great. My code is currently below, and at https://gist.github.com/d634329e5ddf52945989 Thanks all. MyDetailController.h @interface MyDetailController : UITableViewController <UITextFieldDelegate,UINavigationControllerDelegate> { //...(lots in here) } @end @interface UIResponder(UIResponderInsertTextAdditions) - (void) insertText: (NSString*) text; @end MyDetailController.m @implementation MyDetailController //.... (lots in here) - (void)addDecimal:(NSNotification *)notification { // Apend the Decimal to the TextField. //savedAmount.text = [savedAmount.text stringByAppendingString:@"."]; NSLog(@"Decimal Pressed"); NSLog(@"tagClicked: %d",tagClicked); switch (tagClicked) { case 7: //savedAmount.text = [savedAmount.text stringByAppendingString:@"."]; break; case 8: //goalAmount.text = [goalAmount.text stringByAppendingString:@"."]; break; case 9: //incrementAmount.text = [incrementAmount.text stringByAppendingString:@"."]; break; case 10: //incrementAmount.text = [incrementAmount.text stringByAppendingString:@"."]; break; } [self insertText:@"."]; } -(void)textFieldDidBeginEditing:(UITextField *)textfield{ //UITextField *theCell = (UITextField *)sender; tagClicked = textfield.tag; NSLog(@"textfield changed. tagClicked: %d",tagClicked); } @end @implementation UIResponder(UIResponderInsertTextAdditions) - (void) insertText: (NSString*) text { // Get a refererence to the system pasteboard because that's // the only one @selector(paste:) will use. UIPasteboard* generalPasteboard = [UIPasteboard generalPasteboard]; // Save a copy of the system pasteboard's items // so we can restore them later. NSArray* items = [generalPasteboard.items copy]; // Set the contents of the system pasteboard // to the text we wish to insert. generalPasteboard.string = text; // Tell this responder to paste the contents of the // system pasteboard at the current cursor location. [self paste: self]; // Restore the system pasteboard to its original items. generalPasteboard.items = items; // Free the items array we copied earlier. [items release]; } @end

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• Win32 window capture with BitBlt not displaying border

  - by user292533

  I have written some c++ code to capture a window to a .bmp file. BITMAPFILEHEADER get_bitmap_file_header(int width, int height) { BITMAPFILEHEADER hdr; memset(&hdr, 0, sizeof(BITMAPFILEHEADER)); hdr.bfType = ((WORD) ('M' << 8) | 'B'); // is always "BM" hdr.bfSize = 0;//sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + (width * height * sizeof(int)); hdr.bfReserved1 = 0; hdr.bfReserved2 = 0; hdr.bfOffBits = (DWORD)(sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER)); return hdr; } BITMAPINFO get_bitmap_info(int width, int height) { BITMAPINFO bmi; memset(&bmi.bmiHeader, 0, sizeof(BITMAPINFOHEADER)); //initialize bitmap header bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); bmi.bmiHeader.biWidth = width; bmi.bmiHeader.biHeight = height; bmi.bmiHeader.biPlanes = 1; bmi.bmiHeader.biBitCount = 4 * 8; bmi.bmiHeader.biCompression = BI_RGB; bmi.bmiHeader.biSizeImage = width * height * 4; return bmi; } void get_bitmap_from_window(HWND hWnd, int * imageBuff) { HDC hDC = GetWindowDC(hWnd); SIZE size = get_window_size(hWnd); HDC hMemDC = CreateCompatibleDC(hDC); RECT r; HBITMAP hBitmap = CreateCompatibleBitmap(hDC, size.cx, size.cy); HBITMAP hOld = (HBITMAP)SelectObject(hMemDC, hBitmap); BitBlt(hMemDC, 0, 0, size.cx, size.cy, hDC, 0, 0, SRCCOPY); //PrintWindow(hWnd, hMemDC, 0); BITMAPINFO bmi = get_bitmap_info(size.cx, size.cy); GetDIBits(hMemDC, hBitmap, 0, size.cy, imageBuff, &bmi, DIB_RGB_COLORS); SelectObject(hMemDC, hOld); DeleteDC(hMemDC); ReleaseDC(NULL, hDC); } void save_image(HWND hWnd, char * name) { int * buff; RECT r; SIZE size; GetWindowRect(hWnd, &r); size.cx = r.right-r.left; size.cy = r.bottom-r.top; buff = (int*)malloc(size.cx * size.cy * sizeof(int)); get_bitmap_from_window(hWnd, buff); BITMAPINFO bmi = get_bitmap_info(size.cx, size.cy); BITMAPFILEHEADER hdr = get_bitmap_file_header(size.cx, size.cy); FILE * fout = fopen(name, "w"); fwrite(&hdr, 1, sizeof(BITMAPFILEHEADER), fout); fwrite(&bmi.bmiHeader, 1, sizeof(BITMAPINFOHEADER), fout); fwrite(buff, 1, size.cx * size.cy * sizeof(int), fout); fflush(fout); fclose(fout); free(buff); } It works find under XP, but under Vista the border of the window is transparent. Using PrintWindow solves the problem, but is unacceptable for performance reasons. Is there a performant code change, or a setting that can be changed to make the border non-transparent?

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• Delphi 2010 differs in Canvas transparency compared to Delphi 7?

  - by Tom1952

  I'm porting some very old code from Delph7 to Delphi2010 with a few changes as possible to the existing code base for the usual reasons. First: the good news for anyone who hasn't jumped yet: it's not as daunting as it may look! I'm actually pleased (& surprised) at how easy 1,000,000+ lines of code have moved across. And what a relief to be back on the leading edge! Delphi 2010 has so many great enhancements. However, I'm having a cosmetic problem with some TStringGrids and TDbGrids descendants. In the last century (literally!) someone wrote the two methods below. The first method is used to justify text. When run in Delphi 2010, the new text and the unjustified text to both appear in the cells written to. Of course it's a mess visually, almost illegible. Sometimes, as a result of the second method is use, the grid cells are actually semi-transparent, with text from the window below showing through. (Again, not pretty!) It appears to me that Delphi 2010's TDbGrid and TStringGrid have some differences in the way they handle transparency? I haven't much experience in this area of Delphi (in fact, I have no idea what the 2nd method is actually doing!) and was hoping someone could give me some pointers on what's going on and how to fix it. TIA! Method 1 procedure TForm1.gridDrawCell(Sender: TObject; Col, Row: Integer; Rect: TRect; State: TGridDrawState); {Used to align text in cells.} var x: integer; begin if (Row > 0) AND (Col > 0) then begin SetTextAlign(grdTotals.Canvas.Handle, TA_RIGHT); x := Rect.Right - 2; end else begin SetTextAlign(grdTotals.Canvas.Handle, TA_CENTER); x := (Rect.Left + Rect.Right) div 2; end; grdTotals.Canvas.TextRect(Rect, x, Rect.Top+2, grdTotals.Cells[Col,Row]); end; Method 2 procedure WriteText(ACanvas: TCanvas; ARect: TRect; DX, DY: Integer; const Text: string; TitleBreak: TTitleBreak; Alignment: TAlignment); const AlignFlags: array [TAlignment] of Integer = (DT_LEFT or { DT_WORDBREAK or } DT_EXPANDTABS or DT_NOPREFIX, DT_RIGHT or { DT_WORDBREAK or } DT_EXPANDTABS or DT_NOPREFIX, DT_CENTER or { DT_WORDBREAK or } DT_EXPANDTABS or DT_NOPREFIX); var ABitmap: TBitmap; AdjustBy: Integer; B, R: TRect; WordBreak: Integer; begin WordBreak := 0; if (TitleBreak = tbAlways) or ((TitleBreak = tbDetect) and (Pos(Chr(13) + Chr(10), Text) = 0)) then WordBreak := DT_WORDBREAK; ABitmap := TBitmap.Create; try ABitmap.Canvas.Lock; try AdjustBy := 1; if (Alignment = taRightJustify) then Inc(AdjustBy); with ABitmap, ARect do begin Width := Max(Width, Right - Left); Height := Max(Height, Bottom - Top); R := Rect(DX, DY, Right - Left - AdjustBy, Bottom - Top - 1); { @@@ } B := Rect(0, 0, Right - Left, Bottom - Top); end; with ABitmap.Canvas do begin Font := ACanvas.Font; Brush := ACanvas.Brush; Brush.Style := bsSolid; FillRect(B); SetBkMode(Handle, TRANSPARENT); DrawText(Handle, PChar(Text), Length(Text), R, AlignFlags[Alignment] or WordBreak); end; ACanvas.CopyRect(ARect, ABitmap.Canvas, B); finally ABitmap.Canvas.Unlock; end; finally ABitmap.Free; end; end;

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• How can I handle parameterized queries in Drupal?

  - by Anthony Gatlin

  We have a client who is currently using Lotus Notes/Domino as their content management system and web server. For many reasons, we are recommending they sunset their Notes/Domino implementation and transition onto a more modern platform--such as Drupal. The client has several web applications which would be a natural fit for Drupal. However, I am unsure of the best way to implement one of the web applications in Drupal. I am running into a knowledge barrier and wondered if any of you could fill in the gaps. Situation The client has a Lotus Domino application which serves as a front-end for querying a large DB2 data store and returning a result set (generally in table form) to a user via the web. The web application provides access to approximately 100 pre-defined queries--50 of which are public and 50 of which are secured. Most of the queries accept some set of user selected parameters as input. The output of the queries is typically returned to users in a list (table) format. A limited number of result sets allow drill-down through the HTML table into detail records. The query parameters often involve database queries themselves. For example, a single query may pull a list of company divisions into a drop-down. Once a division is selected, second drop-down with the departments from that division is populated--but perhaps only departments which meet some special criteria--such as those having taken a loss within a specific time frame. Most queries have 2-4 parameters with the average probably being 3. The application involves no data entry. None of the back-end data is ever modified by the web application. All access is purely based around querying data and viewing results. The queries change relatively infrequently, and the current system has been in place for approximately 10 years. There may be 10-20 query additions, modifications, or other changes in a given year. The client simply desires to change the presentation platform but absolutely does not want to re-do the 100 database queries. Once the project is implemented, the client wants their staff to take over and manage future changes. The client's staff have no background in Drupal or PHP but are somewhat willing to learn as necessary. How would you transition this into Drupal? My major knowledge void relates to how we would manage the query parameters and access the queries themselves. Here are a few specific questions but feel free to chime in on any issue related to this implementation. Would we have to build 100 forms by hand--with each form containing the parameters for a given query? If so, how would we do this? Approximately how long would it take to build/configure each of these forms? Is there a better way than manually building 100 forms? (I understand using CCK to enter data into custom content types but since we aren't adding any nodes, I am a little stuck as to how this might work.) Would it be possible for the internal staff to learn to create these query parameter forms--even if they are unfamiliar with Drupal today? Would they be required to do any PHP programming? How would we take the query parameters from a form and execute a query against DB2? Would this require a custom module? If so, would it require one module total or one module per query? (Note: There is apparently a DB2 driver available for Drupal. See http://groups.drupal.org/node/5511.) Note: I am not looking for CMS recommendations other than Drupal as Drupal nicely fits all of the client's other requirements, and I hope to help them standardize on a single platform. Any assistance you can provide would be helpful. Thank you in advance for your help!

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• What is "elegant" code?

  - by Breton

  I see a lot of lip service and talk about the most "elegant" way to do this or that. I think if you spend enough time programming you begin to obtain a sort of intuitive feel for what it is we call "elegance". But I'm curious. Even if we can look at a bit of code, and say instinctively "That's elegant", or "That's messy", I wonder if any of us really understands what that means. Is there a precise definition for this "elegance" we keep referring to? If there is, what is it? Now, what I mean by a precise definition, is a series of statements which can be used to derive questions about a peice of code, or a program as a whole, and determine objectively, or as objectively as possible, whether that code is "elegant" or not. May I assert, that perhaps no such definition exists, and it's all just personal preference. In this case, I ask you a slightly different question: Is there a better word for "elegance", or a better set of attributes to use for judging code quality that is perhaps more objective than merely appealing to individual intuition and taste? Perhaps code quality is a matter of taste, and the answer to both of my questions is "no". But I can't help but feel that we could be doing better than just expressing wishy washy feelings about our code quality. For example, user interface design is something that to a broad range of people looks for all the world like a field of study that oughtta be 100% subjective matter of taste. But this is shockingly and brutally not the case, and there are in fact many objective measures that can be applied to a user interface to determine its quality. A series of tests could be written to give a definitive and repeatable score to user interface quality. (See GOMS, for instance). Now, okay. is Elegance simply "code quality" or is it something more? Is it something that can be measured? Or is it a matter of taste? Does our profession have room for taste? Maybe I'm asking the wrong questions altogether. Help me out here. Bonus Round If there is such a thing as elegance in code, and that concept is useful, do you think that justifies classifying the field of programming as an "Art" capital A, or merely a "craft". Or is it just an engineering field populated by a bunch of wishful thinking humans? Consider this question in the light of your thoughts about the elegance question. Please note that there is a distinction between code which is considered "art" in itself, and code that was written merely in the service of creating an artful program. When I ask this question, I ask if the code itself justifies calling programming an art. Bounty Note I liked the answers to this question so much, I think I'd like to make a photographic essay book from it. Released as a free PDF, and published on some kind of on demand printing service of course, such as "zazz" or "tiggle" or "printley" or something . I'd like some more answers, please!

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• Why are there 3 conflicting OpenCV camera calibration formulas?

  - by John

  I'm having a problem with OpenCV's various parameterization of coordinates used for camera calibration purposes. The problem is that three different sources of information on image distortion formulae apparently give three non-equivalent description of the parameters and equations involved: (1) In their book "Learning OpenCV…" Bradski and Kaehler write regarding lens distortion (page 376): xcorrected = x * ( 1 + k1 * r^2 + k2 * r^4 + k3 * r^6 ) + [ 2 * p1 * x * y + p2 * ( r^2 + 2 * x^2 ) ], ycorrected = y * ( 1 + k1 * r^2 + k2 * r^4 + k3 * r^6 ) + [ p1 * ( r^2 + 2 * y^2 ) + 2 * p2 * x * y ], where r = sqrt( x^2 + y^2 ). Assumably, (x, y) are the coordinates of pixels in the uncorrected captured image corresponding to world-point objects with coordinates (X, Y, Z), camera-frame referenced, for which xcorrected = fx * ( X / Z ) + cx and ycorrected = fy * ( Y / Z ) + cy, where fx, fy, cx, and cy, are the camera's intrinsic parameters. So, having (x, y) from a captured image, we can obtain the desired coordinates ( xcorrected, ycorrected ) to produced an undistorted image of the captured world scene by applying the above first two correction expressions. However... (2) The complication arises as we look at OpenCV 2.0 C Reference entry under the Camera Calibration and 3D Reconstruction section. For ease of comparison we start with all world-point (X, Y, Z) coordinates being expressed with respect to the camera's reference frame, just as in #1. Consequently, the transformation matrix [ R | t ] is of no concern. In the C reference, it is expressed that: x' = X / Z, y' = Y / Z, x'' = x' * ( 1 + k1 * r'^2 + k2 * r'^4 + k3 * r'^6 ) + [ 2 * p1 * x' * y' + p2 * ( r'^2 + 2 * x'^2 ) ], y'' = y' * ( 1 + k1 * r'^2 + k2 * r'^4 + k3 * r'^6 ) + [ p1 * ( r'^2 + 2 * y'^2 ) + 2 * p2 * x' * y' ], where r' = sqrt( x'^2 + y'^2 ), and finally that u = fx * x'' + cx, v = fy * y'' + cy. As one can see these expressions are not equivalent to those presented in #1, with the result that the two sets of corrected coordinates ( xcorrected, ycorrected ) and ( u, v ) are not the same. Why the contradiction? It seems to me the first set makes more sense as I can attach physical meaning to each and every x and y in there, while I find no physical meaning in x' = X / Z and y' = Y / Z when the camera focal length is not exactly 1. Furthermore, one cannot compute x' and y' for we don't know (X, Y, Z). (3) Unfortunately, things get even murkier when we refer to the writings in Intel's Open Source Computer Vision Library Reference Manual's section Lens Distortion (page 6-4), which states in part: "Let ( u, v ) be true pixel image coordinates, that is, coordinates with ideal projection, and ( u ~, v ~ ) be corresponding real observed (distorted) image coordinates. Similarly, ( x, y ) are ideal (distortion-free) and ( x ~, y ~ ) are real (distorted) image physical coordinates. Taking into account two expansion terms gives the following: x ~ = x * ( 1 + k1 * r^2 + k2 * r^4 ) + [ 2 p1 * x * y + p2 * ( r^2 + 2 * x^2 ) ] y ~ = y * ( 1 + k1 * r^2 + k2 * r^4 ] + [ 2 p2 * x * y + p2 * ( r^2 + 2 * y^2 ) ], where r = sqrt( x^2 + y^2 ). ... "Because u ~ = cx + fx * u and v ~ = cy + fy * v , … the resultant system can be rewritten as follows: u ~ = u + ( u – cx ) * [ k1 * r^2 + k2 * r^4 + 2 * p1 * y + p2 * ( r^2 / x + 2 * x ) ] v ~ = v + ( v – cy ) * [ k1 * r^2 + k2 * r^4 + 2 * p2 * x + p1 * ( r^2 / y + 2 * y ) ] The latter relations are used to undistort images from the camera." Well, it would appear that the expressions involving x ~ and y ~ coincided with the two expressions given at the top of this writing involving xcorrected and ycorrected. However, x ~ and y ~ do not refer to corrected coordinates, according to the given description. I don't understand the distinction between the meaning of the coordinates ( x ~, y ~ ) and ( u ~, v ~ ), or for that matter, between the pairs ( x, y ) and ( u, v ). From their descriptions it appears their only distinction is that ( x ~, y ~ ) and ( x, y ) refer to 'physical' coordinates while ( u ~, v ~ ) and ( u, v ) do not. What is this distinction all about? Aren't they all physical coordinates? I'm lost! Thanks for any input!

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• Errors with the Basic OpenCV Hello World

  - by GuyNoir

  I'm simply trying to run the basic openCV hello world tutorial code, but I'm getting errors. I have everything properly linked and built, but it's not working. This seems like it should be extremely easy, but it's not working. OpenCV is properly installed, and I even attempted to place opencv_core220d and opencv_highgui220d in the Debug folder of my project, but no luck. I'm running Visual Studio 2010 under Windows 7 64bit. Here's the errors: 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\ntdll.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\kernel32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\KernelBase.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Users\John\Documents\Visual Studio 2010\Projects\Webcam test\Debug\opencv_core220d.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\msvcp100d.dll', Symbols loaded. 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\msvcr100d.dll', Symbols loaded. 'Webcam test.exe': Loaded 'C:\Users\John\Documents\Visual Studio 2010\Projects\Webcam test\Debug\opencv_highgui220d.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\user32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\gdi32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\lpk.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\usp10.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\msvcrt.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\advapi32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\sechost.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\rpcrt4.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\sspicli.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\cryptbase.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\ole32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7600.16661_none_ebfb56996c72aefc\comctl32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\avifil32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\winmm.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\msacm32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\msvfw32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\shell32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\shlwapi.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\avicap32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\version.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\imm32.dll', Cannot find or open the PDB file 'Webcam test.exe': Loaded 'C:\Windows\SysWOW64\msctf.dll', Cannot find or open the PDB file The program '[5512] Webcam test.exe: Native' has exited with code 1 (0x1). Here's my code: // OpenCV_Helloworld.cpp : Defines the entry point for the console application. // Created for build/install tutorial, Microsoft Visual Studio and OpenCV 2.2.0 #include "stdafx.h" #include <cv.h> #include <cxcore.h> #include <highgui.h> int _tmain(int argc, _TCHAR* argv[]) { // Open the file. IplImage *img = cvLoadImage("photo.jpg"); if (!img) { printf("Error: Couldn't open the image file.\n"); return 1; } // Display the image. cvNamedWindow("Image:", CV_WINDOW_AUTOSIZE); cvShowImage("Image:", img); // Wait for the user to press a key in the GUI window. cvWaitKey(0); // Free the resources. cvDestroyWindow("Image:"); cvReleaseImage(&img); for(int i = 0; i < 10000; i++){ printf("Error: Could"); } return 0; }

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• UIImage rounded corners

  - by catlan

  I try to get rounded corners on a UIImage, what I read so far, the easiest way is to use a mask images. For this I used code from TheElements iPhone Example and some image resize code I found. My problem is that resizedImage is always nil and I don't find the error... - (UIImage *)imageByScalingProportionallyToSize:(CGSize)targetSize { CGSize imageSize = [self size]; float width = imageSize.width; float height = imageSize.height; // scaleFactor will be the fraction that we'll // use to adjust the size. For example, if we shrink // an image by half, scaleFactor will be 0.5. the // scaledWidth and scaledHeight will be the original, // multiplied by the scaleFactor. // // IMPORTANT: the "targetHeight" is the size of the space // we're drawing into. The "scaledHeight" is the height that // the image actually is drawn at, once we take into // account the ideal of maintaining proportions float scaleFactor = 0.0; float scaledWidth = targetSize.width; float scaledHeight = targetSize.height; CGPoint thumbnailPoint = CGPointMake(0,0); // since not all images are square, we want to scale // proportionately. To do this, we find the longest // edge and use that as a guide. if ( CGSizeEqualToSize(imageSize, targetSize) == NO ) { // use the longeset edge as a guide. if the // image is wider than tall, we'll figure out // the scale factor by dividing it by the // intended width. Otherwise, we'll use the // height. float widthFactor = targetSize.width / width; float heightFactor = targetSize.height / height; if ( widthFactor < heightFactor ) scaleFactor = widthFactor; else scaleFactor = heightFactor; // ex: 500 * 0.5 = 250 (newWidth) scaledWidth = width * scaleFactor; scaledHeight = height * scaleFactor; // center the thumbnail in the frame. if // wider than tall, we need to adjust the // vertical drawing point (y axis) if ( widthFactor < heightFactor ) thumbnailPoint.y = (targetSize.height - scaledHeight) * 0.5; else if ( widthFactor > heightFactor ) thumbnailPoint.x = (targetSize.width - scaledWidth) * 0.5; } CGContextRef mainViewContentContext; CGColorSpaceRef colorSpace; colorSpace = CGColorSpaceCreateDeviceRGB(); // create a bitmap graphics context the size of the image mainViewContentContext = CGBitmapContextCreate (NULL, targetSize.width, targetSize.height, 8, 0, colorSpace, kCGImageAlphaPremultipliedLast); // free the rgb colorspace CGColorSpaceRelease(colorSpace); if (mainViewContentContext==NULL) return NULL; //CGContextSetFillColorWithColor(mainViewContentContext, [[UIColor whiteColor] CGColor]); //CGContextFillRect(mainViewContentContext, CGRectMake(0, 0, targetSize.width, targetSize.height)); CGContextDrawImage(mainViewContentContext, CGRectMake(thumbnailPoint.x, thumbnailPoint.y, scaledWidth, scaledHeight), self.CGImage); // Create CGImageRef of the main view bitmap content, and then // release that bitmap context CGImageRef mainViewContentBitmapContext = CGBitmapContextCreateImage(mainViewContentContext); CGContextRelease(mainViewContentContext); CGImageRef maskImage = [[UIImage imageNamed:@"Mask.png"] CGImage]; CGImageRef resizedImage = CGImageCreateWithMask(mainViewContentBitmapContext, maskImage); CGImageRelease(mainViewContentBitmapContext); // convert the finished resized image to a UIImage UIImage *theImage = [UIImage imageWithCGImage:resizedImage]; // image is retained by the property setting above, so we can // release the original CGImageRelease(resizedImage); // return the image return theImage; }

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• GLSL Error: failed to preprocess the source. How can I troubleshoot this?

  - by Brent Parker

  I'm trying to learn to play with OpenGL GLSL shaders. I've written a very simple program to simply create a shader and compile it. However, whenever I get to the compile step, I get the error: Error: Preprocessor error Error: failed to preprocess the source. Here's my very simple code: #include <GL/gl.h> #include <GL/glu.h> #include <GL/glut.h> #include <GL/glext.h> #include <time.h> #include <stdio.h> #include <iostream> #include <stdlib.h> using namespace std; const int screenWidth = 640; const int screenHeight = 480; const GLchar* gravity_shader[] = { "#version 140" "uniform float t;" "uniform mat4 MVP;" "in vec4 pos;" "in vec4 vel;" "const vec4 g = vec4(0.0, 0.0, -9.80, 0.0);" "void main() {" " vec4 position = pos;" " position += t*vel + t*t*g;" " gl_Position = MVP * position;" "}" }; double pointX = (double)screenWidth/2.0; double pointY = (double)screenWidth/2.0; void initShader() { GLuint shader = glCreateShader(GL_VERTEX_SHADER); glShaderSource(shader, 1, gravity_shader, NULL); glCompileShader(shader); GLint compiled = true; glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled); if(!compiled) { GLint length; GLchar* log; glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &length); log = (GLchar*)malloc(length); glGetShaderInfoLog(shader, length, &length, log); std::cout << log <<std::endl; free(log); } exit(0); } bool myInit() { initShader(); glClearColor(1.0f, 1.0f, 1.0f, 0.0f); glColor3f(0.0f, 0.0f, 0.0f); glPointSize(1.0); glLineWidth(1.0f); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(0.0, (GLdouble) screenWidth, 0.0, (GLdouble) screenHeight); glEnable(GL_DEPTH_TEST); return true; } int main(int argc, char** argv) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB); glutInitWindowSize(screenWidth, screenHeight); glutInitWindowPosition(100, 150); glutCreateWindow("Mouse Interaction Display"); myInit(); glutMainLoop(); return 0; } Where am I going wrong? If it helps, I am trying to do this on a Acer Aspire One with an atom processor and integrated Intel video running the latest Ubuntu. It's not very powerful, but then again, this is a very simple shader. Thanks a lot for taking a look!

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• Rx IObservable buffering to smooth out bursts of events

  - by Dan

  I have an Observable sequence that produces events in rapid bursts (ie: five events one right after another, then a long delay, then another quick burst of events, etc.). I want to smooth out these bursts by inserting a short delay between events. Imagine the following diagram as an example: Raw: --oooo--------------ooooo-----oo----------------ooo| Buffered: --o--o--o--o--------o--o--o--o--o--o--o---------o--o--o| My current approach is to generate a metronome-like timer via Observable.Interval() that signals when it's ok to pull another event from the raw stream. The problem is that I can't figure out how to then combine that timer with my raw unbuffered observable sequence. IObservable.Zip() is close to doing what I want, but it only works so long as the raw stream is producing events faster than the timer. As soon as there is a significant lull in the raw stream, the timer builds up a series of unwanted events that then immediately pair up with the next burst of events from the raw stream. Ideally, I want an IObservable extension method with the following function signature that produces the bevaior I've outlined above. Now, come to my rescue StackOverflow :) public static IObservable<T> Buffered(this IObservable<T> src, TimeSpan minDelay) PS. I'm brand new to Rx, so my apologies if this is a trivially simple question... 1. Simple yet flawed approach Here's my initial naive and simplistic solution that has quite a few problems: public static IObservable<T> Buffered<T>(this IObservable<T> source, TimeSpan minDelay) { Queue<T> q = new Queue<T>(); source.Subscribe(x => q.Enqueue(x)); return Observable.Interval(minDelay).Where(_ => q.Count > 0).Select(_ => q.Dequeue()); } The first obvious problem with this is that the IDisposable returned by the inner subscription to the raw source is lost and therefore the subscription can't be terminated. Calling Dispose on the IDisposable returned by this method kills the timer, but not the underlying raw event feed that is now needlessly filling the queue with nobody left to pull events from the queue. The second problem is that there's no way for exceptions or end-of-stream notifications to be propogated through from the raw event stream to the buffered stream - they are simply ignored when subscribing to the raw source. And last but not least, now I've got code that wakes up periodically regardless of whether there is actually any work to do, which I'd prefer to avoid in this wonderful new reactive world. 2. Way overly complex appoach To solve the problems encountered in my initial simplistic approach, I wrote a much more complicated function that behaves much like IObservable.Delay() (I used .NET Reflector to read that code and used it as the basis of my function). Unfortunately, a lot of the boilerplate logic such as AnonymousObservable is not publicly accessible outside the system.reactive code, so I had to copy and paste a lot of code. This solution appears to work, but given its complexity, I'm less confident that its bug free. I just can't believe that there isn't a way to accomplish this using some combination of the standard Reactive extensions. I hate feeling like I'm needlessly reinventing the wheel, and the pattern I'm trying to build seems like a fairly standard one.

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• Best style for Python programs: what do you suggest?

  - by Noctis Skytower

  A friend of mine wanted help learning to program, so he gave me all the programs that he wrote for his previous classes. The last program that he wrote was an encryption program, and after rewriting all his programs in Python, this is how his encryption program turned out (after adding my own requirements). #! /usr/bin/env python ################################################################################ """\ CLASS INFORMATION ----------------- Program Name: Program 11 Programmer: Stephen Chappell Instructor: Stephen Chappell for CS 999-0, Python Due Date: 17 May 2010 DOCUMENTATION ------------- This is a simple encryption program that can encode and decode messages.""" ################################################################################ import sys KEY_FILE = 'Key.txt' BACKUP = '''\ !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNO\ PQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~ _@/6-UC'GzaV0%5Mo9g+yNh8b">Bi=<Lx [sQn#^R.D2Xc(\ Jm!4e${lAEWud&t7]H\`}pvPw)FY,Z~?qK|3SOfk*:1;jTrI''' ################################################################################ def main(): "Run the program: loads key, runs processing loop, and saves key." encode_map, decode_map = load_key(KEY_FILE) try: run_interface_loop(encode_map, decode_map) except SystemExit: pass save_key(KEY_FILE, encode_map) def run_interface_loop(encode_map, decode_map): "Shows the menu and runs the appropriate command." print('This program handles encryption via a customizable key.') while True: print('''\ MENU ==== (1) Encode (2) Decode (3) Custom (4) Finish''') switch = get_character('Select: ', tuple('1234')) FUNC[switch](encode_map, decode_map) def get_character(prompt, choices): "Gets a valid menu option and returns it." while True: sys.stdout.write(prompt) sys.stdout.flush() line = sys.stdin.readline()[:-1] if not line: sys.exit() if line in choices: return line print(repr(line), 'is not a valid choice.') ################################################################################ def load_key(filename): "Gets the key file data and returns encoding/decoding dictionaries." plain, cypher = open_file(filename) return dict(zip(plain, cypher)), dict(zip(cypher, plain)) def open_file(filename): "Load the keys and tries to create it when not available." while True: try: with open(filename) as file: plain, cypher = file.read().split('\n') return plain, cypher except: with open(filename, 'w') as file: file.write(BACKUP) def save_key(filename, encode_map): "Dumps the map into two buffers and saves them to the key file." plain = cypher = str() for p, c in encode_map.items(): plain += p cypher += c with open(filename, 'w') as file: file.write(plain + '\n' + cypher) ################################################################################ def encode(encode_map, decode_map): "Encodes message for the user." print('Enter your message to encode (EOF when finished).') message = get_message() for char in message: sys.stdout.write(encode_map[char] if char in encode_map else char) def decode(encode_map, decode_map): "Decodes message for the user." print('Enter your message to decode (EOF when finished).') message = get_message() for char in message: sys.stdout.write(decode_map[char] if char in decode_map else char) def custom(encode_map, decode_map): "Allows user to edit the encoding/decoding dictionaries." plain, cypher = get_new_mapping() for p, c in zip(plain, cypher): encode_map[p] = c decode_map[c] = p ################################################################################ def get_message(): "Gets and returns text entered by the user (until EOF)." buffer = [] while True: line = sys.stdin.readline() if line: buffer.append(line) else: return ''.join(buffer) def get_new_mapping(): "Prompts for strings to edit encoding/decoding maps." while True: plain = get_unique_chars('What do you want to encode from?') cypher = get_unique_chars('What do you want to encode to?') if len(plain) == len(cypher): return plain, cypher print('Both lines should have the same length.') def get_unique_chars(prompt): "Gets strings that only contain unique characters." print(prompt) while True: line = input() if len(line) == len(set(line)): return line print('There were duplicate characters: please try again.') ################################################################################ # This map is used for dispatching commands in the interface loop. FUNC = {'1': encode, '2': decode, '3': custom, '4': lambda a, b: sys.exit()} ################################################################################ if __name__ == '__main__': main() For all those Python programmers out there, your help is being requested. How should the formatting (not necessarily the coding by altered to fit Python's style guide? My friend does not need to be learning things that are not correct. If you have suggestions on the code, feel free to post them to this wiki as well.

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• MovieClip, counter almost working AS3

  - by VideoDnd

  How do I get my counter to work? This was over my director's head. Please include explanation, and feel free to comment. CONFUSION: I'm confused about the MovieClip container in as3. public class NumbersView extends MovieClip, so that seems to be a container. That may not be the problem, but that's where I got lost. CODE http://videodnd.weebly.com/ The working version of this code is fantastic. My code bellow is an attempt at revising it. The source has been adapted from various smart people. It's a work in progress LIBRARY OBJECT 'vertical number column' Name: mc-NumberImage Class: NumberImage OUTPUT ERRORS 'When I uncomment the code" 1023: Incompatible override. NumbersView... 1021: Duplicate function definition. NumbersView... //NUMBER DOCUMENT CLASS //IMPORT import flash.display.Sprite; import flash.events.Event; import flash.utils.Timer; import flash.events.TimerEvent; import flash.display.DisplayObject; import flash.display.MovieClip; import flash.utils.Dictionary; import caurina.transitions.Tweener; //COUNTER var timer:Timer = new Timer(1000); var count:int = 0; var fcount:int = 0; timer.addEventListener(TimerEvent.TIMER, incrementCounter); timer.start(); function incrementCounter(event:TimerEvent) { count++; fcount=int(count*count/1000); } function formatCount(i:int):String { var fraction:int = i % 100; var whole:int = i / 100; return ("000000000" + i).substr(-9, 9); } //------------------------------------------------------------------------ //PROBLEM AREA function enterFrameHandler(e:Event):void { // numbers.setTime(formatCount(fcount)); } var _listItems:Array = new Array(); var previousNums:Array; const numHeight:int = 120; var NumbersView:Sprite = new Sprite(); //var numbers:NumbersView = new NumbersView; //NUMBERSVIEW // function NumbersView($n:int):void { _listItems = new Array(); previousNums = new Array(); var item:NumberImage; var offset:int = _listItems.length; for (var i:Number = 0; i < 9; i++) { item = new NumberImage(); // }//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< //------------------------------------------------------------------------ //PUSH ARRAY addChild(item); item.x = i * item.width; _listItems.push(item); } //TWEENER 'Y SCROLLING' function setTime($number:String):void { var nums:Array = $number.split(""); for (var i:Number = 0; i < nums.length; i++) { if (nums[i] == previousNums[i]) continue; Tweener.removeTweens(_listItems[i]); var newY:int = int(nums[i]) * -numHeight; if (_listItems[i].y < 0) _listItems[i].y = numHeight; Tweener.addTween(_listItems[i], { y:newY, time:3 } ); } previousNums = nums; } D E S C R I P T I O N COUNTER: formatCount needs to get passed to Tweener STAGE: for loop, sets up children to be added to the stage NumbersView becomes item, item array adds children to stage TWEENER: advances the vertical number column every time the count fires adds and removes WHY - Learning - Benifit in simplifying the classes and putting it in one FLA

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• Can a conforming C implementation #define NULL to be something wacky

  - by janks

  I'm asking because of the discussion that's been provoked in this thread: http://stackoverflow.com/questions/2597142/when-was-the-null-macro-not-0/2597232 Trying to have a serious back-and-forth discussion using comments under other people's replies is not easy or fun. So I'd like to hear what our C experts think without being restricted to 500 characters at a time. The C standard has precious few words to say about NULL and null pointer constants. There's only two relevant sections that I can find. First: 3.2.2.3 Pointers An integral constant expression with the value 0, or such an expression cast to type void * , is called a null pointer constant. If a null pointer constant is assigned to or compared for equality to a pointer, the constant is converted to a pointer of that type. Such a pointer, called a null pointer, is guaranteed to compare unequal to a pointer to any object or function. and second: 4.1.5 Common definitions <stddef.h> The macros are NULL which expands to an implementation-defined null pointer constant; The question is, can NULL expand to an implementation-defined null pointer constant that is different from the ones enumerated in 3.2.2.3? In particular, could it be defined as: #define NULL __builtin_magic_null_pointer Or even: #define NULL ((void*)-1) My reading of 3.2.2.3 is that it specifies that an integral constant expression of 0, and an integral constant expression of 0 cast to type void* must be among the forms of null pointer constant that the implementation recognizes, but that it isn't meant to be an exhaustive list. I believe that the implementation is free to recognize other source constructs as null pointer constants, so long as no other rules are broken. So for example, it is provable that #define NULL (-1) is not a legal definition, because in if (NULL) do_stuff(); do_stuff() must not be called, whereas with if (-1) do_stuff(); do_stuff() must be called; since they are equivalent, this cannot be a legal definition of NULL. But the standard says that integer-to-pointer conversions (and vice-versa) are implementation-defined, therefore it could define the conversion of -1 to a pointer as a conversion that produces a null pointer. In which case if ((void*)-1) would evaluate to false, and all would be well. So what do other people think? I'd ask for everybody to especially keep in mind the "as-if" rule described in 2.1.2.3 Program execution. It's huge and somewhat roundabout, so I won't paste it here, but it essentially says that an implementation merely has to produce the same observable side-effects as are required of the abstract machine described by the standard. It says that any optimizations, transformations, or whatever else the compiler wants to do to your program are perfectly legal so long as the observable side-effects of the program aren't changed by them. So if you are looking to prove that a particular definition of NULL cannot be legal, you'll need to come up with a program that can prove it. Either one like mine that blatantly breaks other clauses in the standard, or one that can legally detect whatever magic the compiler has to do to make the strange NULL definition work. Steve Jessop found an example of way for a program to detect that NULL isn't defined to be one of the two forms of null pointer constants in 3.2.2.3, which is to stringize the constant: #define stringize_helper(x) #x #define stringize(x) stringize_helper(x) Using this macro, one could puts(stringize(NULL)); and "detect" that NULL does not expand to one of the forms in 3.2.2.3. Is that enough to render other definitions illegal? I just don't know. Thanks!

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• Hidden UIView Orientation Change / Layout problems

  - by gargantaun

  The Problem: I have two View Controllers loaded into a root View Controller. Both sub view layouts respond to orientation changes. I switch between the two views using [UIView transformationFromView:...]. Both sub views work fine on their own, but if... Views are swapped Orientation Changes Views are swapped again the View that was previously hidden has serious layout problems. The more I repeat these steps the worse the problem gets. Implementation Details I have three viewsControllers. MyAppViewController A_ViewController B_ViewController A & B ViewControllers have a background image each, and a UIWebView and an AQGridView respectively. To give you an example of how i'm setting it all up, here's the loadView method for A_ViewController... - (void)loadView { [super loadView]; // background image // Should fill the screen and resize on orientation changes UIImageView *bg = [[UIImageView alloc] initWithFrame:self.view.bounds]; bg.contentMode = UIViewContentModeCenter; bg.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; bg.image = [UIImage imageNamed:@"fuzzyhalo.png"]; [self.view addSubview:bg]; // frame for webView // Should have a margin of 34 on all sides and resize on orientation changes CGRect webFrame = self.view.bounds; webFrame.origin.x = 34; webFrame.origin.y = 34; webFrame.size.width = webFrame.size.width - 68; webFrame.size.height = webFrame.size.height - 68; projectView = [[UIWebView alloc] initWithFrame:webFrame]; projectView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth; [self.view addSubview:projectView]; } For the sake of brevity, the AQGridView in B_ViewController is set up pretty much the same way. Now both these views work fine on their own. However, I use both of them in the AppViewController like this... - (void)loadView { [super loadView]; self.view.autoresizesSubviews = YES; [self setWantsFullScreenLayout:YES]; webView = [[WebProjectViewController alloc] init]; [self.view addSubview:webView.view]; mainMenu = [[GridViewController alloc] init]; [self.view addSubview:mainMenu.view]; activeView = mainMenu; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(switchViews:) name:SWAPVIEWS object:nil]; } and I switch betweem the two views using my own switchView method like this - (void) switchViews:(NSNotification*)aNotification; { NSString *type = [aNotification object]; if ([type isEqualToString:MAINMENU]){ [UIView transitionFromView:activeView.view toView:mainMenu.view duration:0.75 options:UIViewAnimationOptionTransitionFlipFromRight completion:nil]; activeView = mainMenu; } if ([type isEqualToString:WEBVIEW]) { [UIView transitionFromView:activeView.view toView:webView.view duration:0.75 options:UIViewAnimationOptionTransitionFlipFromLeft completion:nil]; activeView = webView; } // These don't seem to do anything //[mainMenu.view setNeedsLayout]; //[webView.view setNeedsLayout]; } I'm fumbling my way through this, and I suspect a lot of what i've done is implemented incorrectly so please feel free to point out anything that should be done differently, I need the input. But my primary concern is to understand what's causing the layout problems. Here's two images which illustrate the nature of the layout issues... UPDATE: I just noticed that when the orientation is landscape, the transition flips vertically, when I would expect it to be horizontal. I don't know wether that's a clue as to what might be going wrong. Switch to the other view... change orientation.... switch back....

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• Someone please help google create instuctions that windows users understand. googles "instructions"

  - by nathan

  Below are the only instructions i managed to find from google on how to install the android NDK, it is written as if we all run Linux and presumes we all understand what these obscure tools are. My comments and questions appear in Italics if somone who knows unix and windows would translate for google that would be great! Android NDK Installation Introduction: Please read docs/OVERVIEW.TXT to understand what the Android NDK is and is not. This file gives instructions on how to properly setup your NDK. I. Requirements: The Android NDK currently requires a Linux, OS X or Windows host operating system. Windows users will need to install Cygwin (http://www.cygwin.com) to use it. Note that running the NDK under MSys is not supported. You will need to have the Android SDK and its dependencies installed. The NDK cannot generate final application packages (.apk files), only the shared library files that can go into them. IMPORTANT: The Android NDK can only be used to target system images using the Cupcake (1.5) or later releases of the platform. This is due to subtle toolchain and ABI related changed that make it incompatible with 1.0 and 1.1 system images. The NDK requires GNU Make 3.81 or later being available on your development system. Earlier versions of GNU Make might work but have not been tested. You can check this by running 'make -v' from the command-line. The output should look like: GNU Make 3.81 Copyright (C) 2006 Free Software Foundation, Inc. ... On certain systems, GNU Make might be available through a different command like 'gmake' or 'gnumake'. For these systems, replace 'make' by the appropriate command when invoking the NDK build system as described in the documentation. Great some strange thing called gnu make.. if your not going to tell me what it does maybe you then at least you could give me a URL to it? The NDK also requires a Nawk or GNU Awk executable being available on your development system. Note that the original 'awk' program doesn't implement the 'match' and 'substr' functions used by the NDK build system. Ok another tool, with 1 of 2 possible names, but not the third... and again where should i download this?? On Windows, you will need to install a recent release of Cygwin to use the NDK. See http://www.cygwin.com for instructions. Woohoo a URL! download took about a day because these install instructions do not specify what parts to download. II. Preparing your installation prebuilt cross-toolchain binaries: After installing and unarchiving the NDK, you will need to run the following command from the root folder: build/host-setup.sh hello? windows dont run nothing but .exe .com or .dll, just tell me how you want me to run it.. This will test your setup and make sure the NDK can work properly. Nothing is said about where any of these things need to be installed to (what directory)

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• Run unit tests in Jenkins / Hudson in automated fashion from dev to build server

  - by Kevin Donde

  We are currently running a Jenkins (Hudson) CI server to build and package our .net web projects and database projects. Everything is working great but I want to start writing unit tests and then only passing the build if the unit tests pass. We are using the built in msbuild task to build the web project. With the following arguments ... MsBuild Version .NET 4.0 MsBuild Build File ./WebProjectFolder/WebProject.csproj Command Line Arguments ./target:Rebuild /p:Configuration=Release;DeployOnBuild=True;PackageLocation=".\obj\Release\WebProject.zip";PackageAsSingleFile=True We need to run automated tests over our code that run automatically when we build on our machines (post build event possibly) but also run when Jenkins does a build for that project. If you run it like this it doesn't build the unit tests project because the web project doesn't reference the test project. The test project would reference the web project but I'm pretty sure that would be butchering our automated builds as they exist primarily to build and package our deployments. Running these tests should be a step in that automated build and package process. Options ... Create two Jenkins jobs. one to run the tests ... if the tests pass another build is triggered which builds and packages the web project. Put the post build event on the test project. Build the solution instead of the project (make sure the solution contains the required tests) and put post build events on any test projects that would run the nunit console to run the tests. Then use the command line to copy all the required files from each of the bin and content directories into a package. Just build the test project in jenkins instead of the web project in jenkins. The test project would reference the web project (depending on what you're testing) and build it. Problems ... There's two jobs and not one. Two things to debug not one. One to see if the tests passed and one to build and compile the web project. The tests could pass but the build could fail if its something that isn't used by what you're testing ... This requires us to know exactly what goes into the build. Right now msbuild does it all for us. If you have multiple teams working on a project everytime an extra folder is created you have to worry about the possibly brittle command line statements. This seems like a corruption of our main purpose here. The tests should be a step in this process not the overriding most important thing in this process. I'm also not 100% sure that a triggered build is the same as a normal build does it do all the same things as a normal build. Move all the correct files in the same way move them all into the same directories etc. Initial problem. We want to run our tests whenever our main project is built. But adding a post build event to the web project that runs against the test project doesn't work because the web project doesn't reference the test project and won't trigger a build of this project. I could go on ... but that's enough ... We've spent about a week trying to make this work nicely but haven't succeeded. Feel free to edit this if you feel you can get a better response ...

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• Differing styles in Python program: what do you suggest?

  - by Noctis Skytower

  A friend of mine wanted help learning to program, so he gave me all the programs that he wrote for his previous classes. The last program that he wrote was an encryption program, and after rewriting all his programs in Python, this is how his encryption program turned out (after adding my own requirements). #! /usr/bin/env python ################################################################################ """\ CLASS INFORMATION ----------------- Program Name: Program 11 Programmer: Stephen Chappell Instructor: Stephen Chappell for CS 999-0, Python Due Date: 17 May 2010 DOCUMENTATION ------------- This is a simple encryption program that can encode and decode messages.""" ################################################################################ import sys KEY_FILE = 'Key.txt' BACKUP = '''\ !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNO\ PQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~ _@/6-UC'GzaV0%5Mo9g+yNh8b">Bi=<Lx [sQn#^R.D2Xc(\ Jm!4e${lAEWud&t7]H\`}pvPw)FY,Z~?qK|3SOfk*:1;jTrI''' ################################################################################ def main(): "Run the program: loads key, runs processing loop, and saves key." encode_map, decode_map = load_key(KEY_FILE) try: run_interface_loop(encode_map, decode_map) except SystemExit: pass save_key(KEY_FILE, encode_map) def run_interface_loop(encode_map, decode_map): "Shows the menu and runs the appropriate command." print('This program handles encryption via a customizable key.') while True: print('''\ MENU ==== (1) Encode (2) Decode (3) Custom (4) Finish''') switch = get_character('Select: ', tuple('1234')) FUNC[switch](encode_map, decode_map) def get_character(prompt, choices): "Gets a valid menu option and returns it." while True: sys.stdout.write(prompt) sys.stdout.flush() line = sys.stdin.readline()[:-1] if not line: sys.exit() if line in choices: return line print(repr(line), 'is not a valid choice.') ################################################################################ def load_key(filename): "Gets the key file data and returns encoding/decoding dictionaries." plain, cypher = open_file(filename) return dict(zip(plain, cypher)), dict(zip(cypher, plain)) def open_file(filename): "Load the keys and tries to create it when not available." while True: try: with open(filename) as file: plain, cypher = file.read().split('\n') return plain, cypher except: with open(filename, 'w') as file: file.write(BACKUP) def save_key(filename, encode_map): "Dumps the map into two buffers and saves them to the key file." plain = cypher = str() for p, c in encode_map.items(): plain += p cypher += c with open(filename, 'w') as file: file.write(plain + '\n' + cypher) ################################################################################ def encode(encode_map, decode_map): "Encodes message for the user." print('Enter your message to encode (EOF when finished).') message = get_message() for char in message: sys.stdout.write(encode_map[char] if char in encode_map else char) def decode(encode_map, decode_map): "Decodes message for the user." print('Enter your message to decode (EOF when finished).') message = get_message() for char in message: sys.stdout.write(decode_map[char] if char in decode_map else char) def custom(encode_map, decode_map): "Allows user to edit the encoding/decoding dictionaries." plain, cypher = get_new_mapping() for p, c in zip(plain, cypher): encode_map[p] = c decode_map[c] = p ################################################################################ def get_message(): "Gets and returns text entered by the user (until EOF)." buffer = [] while True: line = sys.stdin.readline() if line: buffer.append(line) else: return ''.join(buffer) def get_new_mapping(): "Prompts for strings to edit encoding/decoding maps." while True: plain = get_unique_chars('What do you want to encode from?') cypher = get_unique_chars('What do you want to encode to?') if len(plain) == len(cypher): return plain, cypher print('Both lines should have the same length.') def get_unique_chars(prompt): "Gets strings that only contain unique characters." print(prompt) while True: line = input() if len(line) == len(set(line)): return line print('There were duplicate characters: please try again.') ################################################################################ # This map is used for dispatching commands in the interface loop. FUNC = {'1': encode, '2': decode, '3': custom, '4': lambda a, b: sys.exit()} ################################################################################ if __name__ == '__main__': main() For all those Python programmers out there, your help is being requested. How should the formatting (not necessarily the coding by altered to fit Python's style guide? My friend does not need to be learning things that are not correct. If you have suggestions on the code, feel free to post them to this wiki as well.

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• php curl image problem

  - by i_dont_wanna_die

  $ch = curl_init(); // set URL and other appropriate options curl_setopt($ch, CURLOPT_URL, "https://www.hushmail.com/signup/turingimage?hush_domain=hushmail.com"); curl_setopt($ch, CURLOPT_HEADER, 0); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // grab URL and pass it to the browser curl_exec($ch); // close cURL resource, and free up system resources curl_close($ch); result: ÿØÿàJFIFÿs>CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), default quality ÿÛC $.' ",#(7),01444'9=82<.342ÿÛC 2!!22222222222222222222222222222222222222222222222222ÿÀ<?¯"ÿÄ ÿĵ}!1AQa"q2‘¡#B±ÁRÑg$3br‚ %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyzƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚáâãäåæçèéêñòóôõö÷øùúÿÄ ÿĵw!1AQaq"2B‘¡±Á #3RgbrÑ $4á%ñ&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz‚ƒ„…†‡ˆ‰Š’“”•–—˜™š¢£¤¥¦§¨©ª²³´µ¶·¸¹ºÂÃÄÅÆÇÈÉÊÒÓÔÕÖ×ØÙÚâãäåæçèéêòóôõö÷øùúÿÚ?ó I ”sôÊ1±Q2Ôö©£¥^:^Zûòä##ƒZvzÅœ7/¤[˃%À|¯jé¼)&9Öuí^ØIGGœIíÒ»Û±îΤ¢›µ×âqÚwI~$Òi©G§8#V¯†.,väñÒŸ™&—ˆ¼/{áû¨í¦+3É”y@œYúoö?Ù.ÿ´¾Óö¿èsV1»iªS‡Ä/«Ïuu¬êÑZ”·hÀe®J8¥¹˜$hÒHÇ€£$×^áw6¥±fÛPû>Ÿuiöh_íiã®Y1iÓÚ¥¶Ñnµˆ ÓÇÚÀ'Ëä>†»/ |/»¾ sª±·€ò#xÿ…v·š¿‡< mö[h”Ücˆ£v>ôªb’|´ÕØÜÕíȵŸj^–IõÇ ‚Aö¤×JêR.«mh–GNSZ@ŠkÙ+g)¹–Ùã˜Çæ"ù•…xm¬ZŒ·QÙÛ$Í:1)Cw⪅WQ^[ „¹µf¿„t}/SÔ® Ö®M¤i u%¶’I‡5¢Ç^g±²–ú;GÒÚ ç&ã' ¬Mzè}ªX6fBÌiή"·>øãÄÚ’\ÜFWM‰‘ñû œEùy™WKSl­cà©u2çT¶8¢]„®È{^k›K¿›Ïòí&o³ÿ®ÂŸ“ëé_Iêé¦7‡î,ZS¥[[J©¸cI¯Öem]½}#Py쌡_|œÊzø÷®Dî:Ue;œ©ƒïVWîŠ~¡u åȹTÚò|Ò¨àSØ«rXºGö8%‹æSùÍiÓÂ?yƒµ–°ú…§†ÃYißeónA’åzb§gŸ5æ‡u¥ÊƒdØ–9äÁ®NÒåÿ„bóVµÔ„RÆ|¹mÁÃ2ÿJÒøs8‹WºÜâÙŠŒg®(kGcKZ2å{}çe¢k:J\êv¨ÑÙÜ ¹ `â¹'IšÛên’ÚGyZLp¸=3X¾Ò¡×üEqÜ®#ù™O'šé¦ÕÁ©i§Û*ͦ]ìï÷ˆ<íSk;!rr{±ÜËoêÚF©r–¡·³(e½t>ñTú¬:…½ÍÜ0j’gÌä•P{Jç5bïR¹·µ!qÎ9œ{ñ[º«ƒá­3SÒ4Û2“¦GL•oÿ]嶇>)ÓP¼V¤:e¶¥àÍFY5q ÓõÁî°X¡÷¬MÃöWZa×´&-i¸‰¡=c?á^—%Ä1øi,’F¡ÄE‚¯g¸ô¯<øyçK>©c'6lsnãò©ìjêyvÖÌáëÙ¾èÔ|7—1Å-G8˜ÈzGW”ÛÇ`­z.™²ŠD‰³^ÍàßiqøVÚîyfçQ$„I´g¶~•y%YŒö.Má d†EµGSµÔÉÈ>•. x?L¸ó´‘mç·Ê0ááUæø}á+»‡•î‹Hç,|sI©-sxf×R†òSåÑ¢`Ê¢pFkÊ<®òbMwbxªËZ¿´‚ßG¸[rìD®{-AkáK–-GX¸…ï …if‹(’":GÕÓBŒ¥.h«Gó.1oU±sKÒá×ü_5ö±‹+'ÌèiÁ=+×ïm´[ÃQÙhšÔVÑ0¡`9ì+Ât¿^ivz…²ÇÂõv»J2WééTô5–mnÎI±$Ê6ƒÁæ·ÄAÚì·MÉï±ï7ºXønÛJÔn¾×ö‰H–âC‚F:ikÇZßãēi°™'³šdHïgcù½zWÆ{™ gå„ J–“’=+Ä$ˆcd‘̧è{×*-Æ÷ÜÑñ.š^¿ue8›Cg#±ÍS_º*ÿ†,luoÛZê—FYLôôæ´µ1|/®Ë¶Ñ\Û¶L;Ÿ §c‘ZAêzXI%'¶2£ºŠãÆÛo–Aé]¯€.l&¼Õ µXîZÜù!y 1ȬK <^ ·ñs™I6g¤iZ4¨.ô{UHíe'2;`cÔ¥QÔ‡ü#^¸Ó¬$ûEÄ­‹Ë”û«sÈ5‘«Iê«nV]bIcU_I—Á9ö¬XXIsmÓ¡r¦Ik;3}ˆa†K‰’QG8UI¯¥tI2ïZéWNÑ·UuVÃ-|î–ú–=¥ñ·’,uáµ_¸ñGˆ ÖÚú{§[Ì`ç§#**Óu-fg%sÕÏÂ}nÔÕn×sÚÔ'á¨9‡\¼_ûi^;&¹ª6æ7÷<ÿ¬5oEñ.ªšÅ¯ªN"ßón“ŒUÒ¡YŸ̨FvÑ…¨Èÿ5[H#‘¯â¹BnÌ„•WPø›q—+ù2^«$q¤Ÿ¼‡Sú×›I_^ê±–K©deí’vŒõ«&Ñít{袵ԒùdŒHÒ'b{W\0ÑMsêÍT—,k~(oÌ÷:œ 'HP˜úSQIÜi÷S²··!»³ViI€\=ê=7÷w7¶gÜÚ\"Ü¡0‡ç8ãÔx‡Âš¯†îwÖì#ÄÀ„‘œ[®DùS/IÙw }Ö«!ˆ(ÜXt=鶷sXSGunÛfˆîFô5¹‰ ƒÃwºRé±+Ü…e<ñëYi—wV77°ÄZSÛkÿw=+,Eù5îi®¦¦¥â={ÅòÚÙ]În_~Ø—äÖ5ÕœöW’ZÏIãm¬Á¨â•á•e‰Ê:œ«)Á»]{H} ÇCñ\µíÍÆ%™¤Ã(n Wm¨4‘CÃÓµ#RºÔ.šShWªN<Çô晚–ºêÙxŠY!EL»ÉdUOøµCíF°Ç¸Iå ÀG$~5v$—ÄísyutÍ~¡F©ã§áW|75Û“²€]^ëF’Ú,“§Ø®?y±0?fÛ\,0H%´Y‘¸ÙùO·½U$$ã¥jÿhKÿÇØ6ÇåysfvüÙÇ­i±è5ʶI”VH€œ.UXaAijÜ:z^YÂÑIK‡Ü¤ó…ç&³+Röf‹K²……t.Hç>´2¥~…kTCÈ–ía‰eßœfªàoÛ¸c8Í%hÃmhW%s*Jª­è )lqãÿ‚ÉSGµ«I'hï6ÊÊ:éÍhêS=íôÒ葃:%c“#jåÉ$ä’~´•èµ^òâÍ,u’\Á@ù3ߊ¥­Ii×MhÖº2ÂrùË?sT.n¥»I3n`¡AÆ8 *XaA$ô´¤²‡HµÒõ%š;‹‰´–¿s€ÃS¦ÑG[ƺŠÏê7+øÆ ñ§6¥â9/fH–RÊqáxö®œ;½Ñ­>ÂÚk÷:f¡{r¶P©¼B&AôrîÇHÔ[LšÔËj.¤òî$“»íö­?‰¯æêL¥ZKÙ¶Œâ¸¶º™íÔ·î‘‹*ú[ÇSJKBÖªèÓÔ5=BÇS0AªÍ2Ù± Uú/N*i|E¬ø†]ûQßoæ ­1áO©>•E_*+•Kág|D4–Ô­ïs¿÷}3Ö¬ÙÂ`mkIMb(­De‰ê. ô²,í£ÚòGÎè£Ü¸=óB4V2 nó‘Ô×>&ü«QÇ{n4KkMÇQšó&í_lh • ÷樶«zÚPÓZv6‚O0F½Zs5³‡K×_N´R–Ñ*²©9Á#šÍÖí"³½Há\)…iHæ¸bî•ÊDñ0Y© C]—º:øfÚ+X&V ûÙ 2úUÊ=Y¯Zéäc«H„ëGj4ËHɻäPF©Å\N¬5›wèÿÙ however, if i go to https://www.hushmail.com/signup/turingimage?hush_domain=hushmail.com via browser that's okay. it works, it shows the image. why doesn't php curl work? i just want to learn the reason...

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• .NET Programmatically invoke screenclick doesn't work?

  - by ropstah

  I'm trying to programmatically invoke an onclick event however the click is not received/handled. Am I missing something, or is security preventing the click to be executed? I have a forms application which is invisible. Basically I would like to say: DoDoubleClick(wait, x, y) This should raise two click (mousedown+mouseup) events on screen with the specified wait interval. However the click isn't received in a Flash application in Firefox (which is running at that moment). Here's my code: Form: Public Class Form1 Private WithEvents gmh As GlobalMouseHook Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load gmh = New GlobalMouseHook() Me.Visible = false gmh.DoDoubleClick(50, 800, 600) End Sub Private Sub Form1_FormClosed(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosedEventArgs) Handles MyBase.FormClosed gmh.Dispose() End Sub Private Sub gmh_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles gmh.MouseDown End Sub Private Sub gmh_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles gmh.MouseMove End Sub Private Sub gmh_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles gmh.MouseUp End Sub End Class GlobalMouseHook class: Friend Class GlobalMouseHook Implements IDisposable Private hhk As IntPtr = IntPtr.Zero Private disposedValue As Boolean = False Public Event MouseDown As MouseEventHandler Public Event MouseUp As MouseEventHandler Public Event MouseMove As MouseEventHandler Public Sub New() Hook() End Sub Private Sub Hook() Dim hInstance As IntPtr = LoadLibrary("User32") hhk = SetWindowsHookEx(WH_MOUSE_LL, AddressOf Me.HookProc, hInstance, 0) End Sub Private Sub Unhook() UnhookWindowsHookEx(hhk) End Sub Public Sub DoDoubleClick(ByVal wait As Integer, ByVal x As Integer, ByVal y As Integer) RaiseEvent MouseDown(Me, New MouseEventArgs(MouseButtons.Left, 1, x, y, 0)) RaiseEvent MouseUp(Me, Nothing) System.Threading.Thread.Sleep(wait) RaiseEvent MouseDown(Me, New MouseEventArgs(MouseButtons.Left, 1, x, y, 0)) RaiseEvent MouseUp(Me, Nothing) End Sub Private Function HookProc(ByVal nCode As Integer, ByVal wParam As UInteger, ByRef lParam As MSLLHOOKSTRUCT) As Integer If nCode >= 0 Then Select Case wParam Case WM_LBUTTONDOWN RaiseEvent MouseDown(Me, New MouseEventArgs(MouseButtons.Left, 0, lParam.pt.x, lParam.pt.y, 0)) Case WM_RBUTTONDOWN RaiseEvent MouseDown(Me, New MouseEventArgs(MouseButtons.Right, 0, lParam.pt.x, lParam.pt.y, 0)) Case WM_MBUTTONDOWN RaiseEvent MouseDown(Me, New MouseEventArgs(MouseButtons.Middle, 0, lParam.pt.x, lParam.pt.y, 0)) Case WM_LBUTTONUP, WM_RBUTTONUP, WM_MBUTTONUP RaiseEvent MouseUp(Nothing, Nothing) Case WM_MOUSEMOVE RaiseEvent MouseMove(Nothing, Nothing) Case WM_MOUSEWHEEL, WM_MOUSEHWHEEL Case Else Console.WriteLine(wParam) End Select End If Return CallNextHookEx(hhk, nCode, wParam, lParam) End Function Private Structure API_POINT Public x As Integer Public y As Integer End Structure Private Structure MSLLHOOKSTRUCT Public pt As API_POINT Public mouseData As UInteger Public flags As UInteger Public time As UInteger Public dwExtraInfo As IntPtr End Structure Private Const WM_MOUSEWHEEL As UInteger = &H20A Private Const WM_MOUSEHWHEEL As UInteger = &H20E Private Const WM_MOUSEMOVE As UInteger = &H200 Private Const WM_LBUTTONDOWN As UInteger = &H201 Private Const WM_LBUTTONUP As UInteger = &H202 Private Const WM_MBUTTONDOWN As UInteger = &H207 Private Const WM_MBUTTONUP As UInteger = &H208 Private Const WM_RBUTTONDOWN As UInteger = &H204 Private Const WM_RBUTTONUP As UInteger = &H205 Private Const WH_MOUSE_LL As Integer = 14 Private Delegate Function LowLevelMouseHookProc(ByVal nCode As Integer, ByVal wParam As UInteger, ByRef lParam As MSLLHOOKSTRUCT) As Integer Private Declare Auto Function LoadLibrary Lib "kernel32" (ByVal lpFileName As String) As IntPtr Private Declare Auto Function SetWindowsHookEx Lib "user32.dll" (ByVal idHook As Integer, ByVal lpfn As LowLevelMouseHookProc, ByVal hInstance As IntPtr, ByVal dwThreadId As UInteger) As IntPtr Private Declare Function CallNextHookEx Lib "user32" (ByVal hhk As IntPtr, ByVal nCode As Integer, ByVal wParam As UInteger, ByRef lParam As MSLLHOOKSTRUCT) As Integer Private Declare Function UnhookWindowsHookEx Lib "user32" (ByVal hhk As IntPtr) As Boolean ' IDisposable Protected Overridable Sub Dispose(ByVal disposing As Boolean) If Not Me.disposedValue Then If disposing Then ' TODO: free other state (managed objects). End If Unhook() End If Me.disposedValue = True End Sub ' This code added by Visual Basic to correctly implement the disposablepattern. Public Sub Dispose() Implements IDisposable.Dispose ' Do not change this code. Put cleanup code in Dispose(ByValdisposing As Boolean) above. Dispose(True) GC.SuppressFinalize(Me) End Sub End Class

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• ublas::bounded_vector<> being resized?

  - by n2liquid

  Now, seriously... I'll refrain from using bad words here because we're talking about the Boost fellows. It MUST be my mistake to see things this way, but I can't understand why, so I'll ask it here; maybe someone can enlighten me in this matter. Here it goes: uBLAS has this nice class template called bounded_vector<> that's used to create fixed-size vectors (or so I thought). From the Effective uBLAS wiki (http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?Effective_UBLAS): The default uBLAS vector and matrix types are of variable size. Many linear algebra problems involve vectors with fixed size. 2 and 3 elements are common in geometry! Fixed size storage (akin to C arrays) can be implemented efficiently as it does not involve the overheads (heap management) associated with dynamic storage. uBLAS implements fixed sizes by changing the underling storage of a vector/matrix to a "bounded_array" from the default "unbounded_array". Alright, this bounded_vector<> thing is used to free you from specifying the underlying storage of the vector to a bounded_array<> of the specified size. Here I ask you: doesn't it look like this bounded vector thing has fixed size to you? Well, it doesn't have. At first I felt betrayed by the wiki, but then I reconsidered the meaning of "bounded" and I think I can let it pass. But in case you, like me (I'm still uncertain), is still wondering if this makes sense, what I found out is that the bounded_vector<> actually can be resized, it may only not be greater than the size specified as template parameter. So, first off, do you think they've had a good reason not to make a real fixed<< size vector or matrix type? Do you think it's okay to "sell" this bounded -- as opposed to fixed-size -- vector to the users of my library as a "fixed-size" vector replacement, even named "Vector3" or "Vector2", like the Effective uBLAS wiki did? Do you think I should somehow implement a vector with fixed size for this purpose? If so, how? (Sorry, but I'm really new to uBLAS; just tried it today) I am developing a 3D game. Should uBLAS be used for the calculations involved in this ("hey, geometry!", per Effective uBLAS wiki)? What replacement would you suggest, if not? -- edit And just in case, yes, I've read this warning: It should be noted that this only changes the storage uBLAS uses for the vector3. uBLAS will still use all the same algorithm (which assume a variable size) to manipulate the vector3. In practice this seems to have no negative impact on speed. The above runs just as quickly as a hand crafted vector3 which does not use uBLAS. The only negative impact is that the vector3 always store a "size" member which in this case is redundant [or isn't it? I mean......]. I see it uses the same algorithm, assuming a variable size, but if an operation were to actually change its size, shouldn't it be stopped (assertion)? ublas::bounded_vector<float,3> v3; ublas::bounded_vector<float,2> v2; v3 = v2; std::cout << v3.size() << '\n'; // prints 2 Oh, come on, isn't this just plain betrayal?

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• XSLT Select all nodes containing a specific substing

  - by Mike

  I'm trying to write an XPath that will select certain nodes that contain a specific word. In this case the word is, "Lockwood". The correct answer is 3. Both of these paths give me 3. count(//*[contains(./*,'Lockwood')]) count(BusinessLetter/*[contains(../*,'Lockwood')]) But when I try to output the text of each specific node //*[contains(./*,'Lockwood')][1] //*[contains(./*,'Lockwood')][2] //*[contains(./*,'Lockwood')][3] Node 1 ends up containing all the text and nodes 2 and 3 are blank. Can some one please tell me what's happening or what I'm doing wrong. Thanks. <?xml version="1.0" encoding="UTF-8"?> <?xml-stylesheet type="text/xsl" href="XPathFunctions.xsl"?> <BusinessLetter> <Head> <SendDate>November 29, 2005</SendDate> <Recipient> <Name Title="Mr."> <FirstName>Joshua</FirstName> <LastName>Lockwood</LastName> </Name> <Company>Lockwood &amp; Lockwood</Company> <Address> <Street>291 Broadway Ave.</Street> <City>New York</City> <State>NY</State> <Zip>10007</Zip> <Country>United States</Country> </Address> </Recipient> </Head> <Body> <List> <Heading>Along with this letter, I have enclosed the following items:</Heading> <ListItem>two original, execution copies of the Webucator Master Services Agreement</ListItem> <ListItem>two original, execution copies of the Webucator Premier Support for Developers Services Description between Lockwood &amp; Lockwood and Webucator, Inc.</ListItem> </List> <Para>Please sign and return all four original, execution copies to me at your earliest convenience. Upon receipt of the executed copies, we will immediately return a fully executed, original copy of both agreements to you.</Para> <Para>Please send all four original, execution copies to my attention as follows: <Person> <Name> <FirstName>Bill</FirstName> <LastName>Smith</LastName> </Name> <Address> <Company>Webucator, Inc.</Company> <Street>4933 Jamesville Rd.</Street> <City>Jamesville</City> <State>NY</State> <Zip>13078</Zip> <Country>USA</Country> </Address> </Person> </Para> <Para>If you have any questions, feel free to call me at <Phone>800-555-1000 x123</Phone> or e-mail me at <Email>[email protected]</Email>.</Para> </Body> <Foot> <Closing> <Name> <FirstName>Bill</FirstName> <LastName>Smith</LastName> </Name> <JobTitle>VP of Operations</JobTitle> </Closing> </Foot> </BusinessLetter>

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