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  • Storing images in a Microsoft SQL Server 2005 database

    - by Rekreativc
    Hello! I have a question about storing an image in a database. I know this topic has been discussed before, however I feel that in my case this is actually a good idea - the images will be small (none should be as large as 1MB) and there shouldn't be too many. I like the idea of not worrying about IO permissions etc. Anyway I have a problem when storing the image (byte[]) to the database type image. Here is my code: OleDbCommand comm = new OleDbCommand(strSql, Program.GetConnection()); comm.Parameters.Add("?", SqlDbType.Image).Value = bytearr; comm.ExecuteNonQuery(); Everything compiles fine, however when I run it, the code only saves the value 63 (0x3F) into the field - no matter which image I am trying to save. What could be the problem? Thank you for your help.

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  • Operations on bytes in C#

    - by Hooch
    Hello. I'm writing application to control LEDS on LPT. I have everything working except this. This is one small function. I have sth like that: I want to build function that will take two argument and return one number: In actual code those binary numers will be in hex. I put them there like that so that it's easier for you to visualize it. Example1: arg1 = 1100 1100 arg2 = 1001 0001 retu = 0100 1100 Example2: arg1 = 1111 1111 arg2 = 0001 0010 retu = 1110 1101 Example3: arg1 = 1111 0000 arg2 = 0010 0010 retu = 1101 0000 I have no idea how this function should look like. I want it to be as fast as possible. I'll call this function 200 times per second.

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  • Transparent QGLWidget on top of QGraphicsView

    - by maciej.gryka
    I'm using QGraphicsView to show a 2D image and also have a separate QGLWidget window to display some 3D object. I'm dynamically changing the image displayed in `QGraphicsView' based on the rotation of the 3D object. I would like to render a semi-transparent 3D object on top of the 2D image, something like Maya 2009 used to do (notice the cube in the upper right corner of the viewport): Is it possible to do this with my current widgets? If not, how could it be done? One option I can think of would be to render everything in QGLWidget and display the 2D image as a texture on a background plane, but that seems slightly painful.

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  • Replace several tags from a text js

    - by Blanca
    Hi! I have this pice of text I would like to change: [¿Cómo se procede cuando la mujer o pareja de un < bfallecido< /b pide la congelación del semen] So I would like to remove ], [ and < b< /b Is there any way to change it everything in the same time?? I tried: function replaceThings(){ jQuery(".summary").each(function(){ var t = jQuery(this).text(); jQuery(this).text(t.replace(/& lt;/g, '')); jQuery(this).text(t.replace('[', '')); jQuery(this).text(t.replace(']', '')); }); But only replaces ]. Thanks in advance

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  • Problem when reading backslash in Prolog

    - by Jerry
    I'm writing a lexer in Prolog which will be used as a part of functional language interpreter. Language spec allows expressions like for example let \x = x + 2; to occur. What I want lexer to do for such input is to "return": [tokLet, tokLambda, tokVar(x), tokEq, tokVar(x), tokPlus, tokNumber(2), tokSColon] and the problem is, that Prolog seems to ignore the \ character and "returns" the line written above except for tokLambda. One approach to solve this would be to somehow add second backslash before/after every occurrence of one in the program code (because everything works fine if I change the original input to let \\x = x + 2;) but I don't really like it. Any ideas?

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  • Session is null when inherit from System.Web.UI.Page

    - by Andreas K.
    I want to extend the System.Web.UI.Page-class with some extra stuff. In the ctor I need the value of a session-variable. The problem is that the Session-object is null... public class ExtendedPage : System.Web.UI.Page { protected foo; public ExtendedPage() { this.foo = (int)HttpContext.Current.Session["foo"]; // NullReferenceException } } If I move the part with the session-object into the Load-Event everything works fine... public class ExtendedPage : System.Web.UI.Page { protected foo; public ExtendedPage() { this.Load += new EventHandler(ExtendedPage_Load); } void ExtendedPage_Load(object sender, EventArgs e) { this.foo = (int)HttpContext.Current.Session["foo"]; } } Why is the Session-object null in the first case??

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  • How few a files does it take to load a program on Linux?

    - by BCS
    The (hypothetical for now) situation is the user of my system is going to be given a chunk of C code and needs my system to compile and run it in a chroot sandbox that is generated on the fly and I want to require the fewest files in the box as possible. I'm only willing to play with compiler and linker settings (e.g. static link everything I can expect to be able to find) and make some moderate restriction on what the code can expect use (e.g. they can't use arbitrary libs). The question is how simple can I get the sandbox. Clearly I need the executable, but what about an ELF loader and a .so for the system calls? Can I dump either of them and is there something else I'll need?

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  • How can I sync a database driven website to a different server

    - by tbrandao
    I have a website using cPanel on a dedicated account, I would like to be able to automatically sync the website to a second hosting company or perhaps to a local (in house ) server. Basically this is a type of replication. The website is database driven (MySQL), so Ideally it would sync everything (content, database, emails etc.) , but most importantly is syncing the website files and its database. I'm not so much looking for a fail-over solution as an automatic replication solution, so if the primary site (Server) goes off-line, I can manually bring up the replicated site quickly. I'm familiar with tools like unison and rsync, but most of these only sync file(s) and do not do too well with open database connections.

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  • IE6 list issue - First list on page ignores horizontal margins

    - by user307922
    Hi Folks, I am creating a store in Magento and have a weird issue with IE6 and the ordered lists on my page. For some reason, IE6 ignores the horizontal margin on my first list. Not the first element in the list but the whole list. I have multiple list on the page. Here is a link to the offending page: http://byerofma.nexcess.net/products/pangean-furniture.html I have tried everything I can think of. Any ideas? Cheers, Chuck

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  • TextField breaking MOUSE_OVER in as3: only after moving it!

    - by Franz
    I'm having a really weird problem with the MOUSE_OVER event. I'm building dynamic tabs representing mp3 songs containing textfields with info and a dynamic image for the cover art. I am trying to get a simple MOUSE_OVER working over the whole tab, such that you can select the next song to play. I am using a Sprite with alpha 0 that overlays my whole tab (incl. the textFields) as a Listener for MOUSE_OVER and _OUT... I've checked by setting the alpha to something visible and it indeed covers my tab and follows it around as I move it (just making sure I'm not moving the tab without moving the hotspot). Also, I only create it once my cover art is loaded, ensuring that it will cover that too. Now, when the tab is in the top position, everything is dandy. As soon as I move the tab to make space for the next tab, the textFields break my roll behaviour... just like that noob mistake of overlaying a sprite over the one that you're listening for MouseEvents on. But... the roll area is still on top of the field, I've set selectable and mouseEnabled to false on the textFields... nothing. It is as if the mere fact of moving the whole tab now puts the textField on top of everything in my tab (whereas visually, it's still in its expected layer). I'm using pixel fonts but tried it with system fonts, same thing... at my wits end here. public function Tab(tune:Tune) { _tune = tune; mainSprite = new Sprite(); addChild(mainSprite); drawBorder(); createFormat(); placeArtist(); placeTitle(); placeAlbum(); coverArt(); } private function placeButton():void { _button = new Sprite(); _button.graphics.beginFill(0xFF000,0); _button.graphics.drawRect(0,0,229,40); _button.graphics.endFill(); _button.addEventListener(MouseEvent.MOUSE_OVER, mouseListener); _button.addEventListener(MouseEvent.MOUSE_OUT, mouseListener); _button.buttonMode = true; mainSprite.addChild(_button); } private function mouseListener(event:MouseEvent):void { switch(event.type){ case MouseEvent.MOUSE_OVER : hilite(true); break; case MouseEvent.MOUSE_OUT : hilite(false); break; } } private function createFormat():void { _format = new TextFormat(); _format.font = "FFF Neostandard"; _format.size = 8; _format.color = 0xFFFFFF; } private function placeArtist():void { var artist : TextField = new TextField(); artist.selectable = false; artist.defaultTextFormat = _format; artist.x = 41; artist.y = 3; artist.width = 135; artist.text = _tune.artist; artist.mouseEnabled = false; mainSprite.addChild(artist); } private function placeTitle():void { var title : TextField = new TextField(); title.selectable = false; title.defaultTextFormat = _format; title.x = 41; title.y = 14; title.width = 135; title.text = _tune.title; title.mouseEnabled = false; mainSprite.addChild(title); } private function placeAlbum():void { var album : TextField = new TextField(); album.selectable = false; album.defaultTextFormat = _format; album.x = 41; album.y = 25; album.width = 135; album.text = _tune.album; album.mouseEnabled = false; mainSprite.addChild(album); } private function drawBorder():void { _border = new Sprite(); _border.graphics.lineStyle(1, 0x545454); _border.graphics.drawRect (0,0,229,40); mainSprite.addChild(_border); } private function coverArt():void { _image = new Sprite(); var imageLoader : Loader = new Loader(); _loaderInfo = imageLoader.contentLoaderInfo; _loaderInfo.addEventListener(Event.COMPLETE, coverLoaded) var image:URLRequest = new URLRequest(_tune.coverArt); imageLoader.load(image); _image.x = 1.5; _image.y = 2; _image.addChild(imageLoader); } private function coverLoaded(event:Event):void { _loaderInfo.removeEventListener(Event.COMPLETE, coverLoaded); var scaling : Number = IMAGE_SIZE / _image.width; _image.scaleX = scaling; _image.scaleY = scaling; mainSprite.addChild (_image); placeButton(); } public function hilite(state:Boolean):void{ var col : ColorTransform = new ColorTransform(); if(state){ col.color = 0xFFFFFF; } else { col.color = 0x545454; } _border.transform.colorTransform = col; }

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  • phpMyAdmin - can't connect - invalid setings - ever since I added a root password - locked out

    - by OrangeRind
    I run XAMPP, a few days back i had set up a password for the root password through phpmyadmin I am not able to access phpMyAdmin ever since that moment I followed help on this link but everything seems fine there (in config.inc.php). I even tried unistalling xampp fully, restarting windows and then reinstalling xampp, but still pointing to localhost/phpmyadmin I get the following error MySQL said: Cannot connect: invalid settings. phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server. I Also tried to reset root password through mysqld.bat as given on mysql's website help but to no avail Please Help!

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  • Using $.getJSON to perform cross domain request problem.

    - by Ahmed
    I'm using the following code to make cross domain request using $.getJSON, request completed but with errors, I cannot exactly detect what is the thrown error. Based on callback param of request value I route it to a certain method which retrieves required JSON data. $.getJSON("http://wthsrvr:45452/Handler.ashx/?Callback=DocumentReadStatus", { userID: vuserID, documentID: vdocumentID, format: "json" }, function(result) { if (result.readStatus == '1') { alert("ACCEPTED"); } else if (result.readStatus == '0') { alert("NOT ACCEPTED"); } else { alert(result.readStatus); } }); FYI: while development of this locally, everything worked fine, but after solution deployment to server and trying to do the same, I got that problem. Also, I tried the same functionality with web service, I got the same problem while calling web service from server. I'm using ajaxSetup to detect thrown errors. $.ajaxSetup({ "error": function(XMLHttpRequest, textStatus, errorThrown) { alert("textStatus: " + textStatus); alert("errorThrown: " + errorThrown); alert("responseText: " + XMLHttpRequest.responseText); } });

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  • DeleteObject method is missing in Entity Framework 4.1

    - by bobetko
    This is driving me crazy. I am getting error that object doesn't contain definition for DeleteObject. Here is my line of code that produces an error: ctx.Tanks.DeleteObject(Tank); I tried to reference another object from another edmx file that my friend has created and then everything is fine, DeleteObject exists. I don't think I miss any references in my project. And project itself contains edmx file and I used DBContext to create POCOs. Any ideas?

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  • email tracking image duplicate requests

    - by DEH
    I am embedding tracking images within emails that are being sent from a custom-built opt-in CRM system. The image src is an encoded .gif, such as src="12_34_675.gif". The image is served by an ASP.NET httphandler that decodes the src encoding and serves a transparent image. Everything works fine, but some email clients request the image multiple times, creating duplicate entries. Some clients make three calls all within one second, and some seem to make tens of calls over a day or so. Mostly email clients make single calls, but these few duplicates are very perplexing. I know I can code around them, but I'd really like to understand what's going on. I've checked the IIS log files, which show that the duplicate requests are coming from the client machines. I can't think what might be causing these duplicate http requests. Help!

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  • chatbot using twisted and wokkel

    - by dmitriy k.
    I am writing a chatbot using Twisted and wokkel and everything seems to be working except that bot periodically logs off. To temporarily fix that I set presence to available on every connection initialized. Does anyone know how to prevent going offline? (I assume if i keep sending available presence every minute or so bot wont go offline but that just seems too wasteful.) Suggestions anyone? Here is the presence code: class BotPresenceClientProtocol(PresenceClientProtocol): def connectionInitialized(self): PresenceClientProtocol.connectionInitialized(self) self.available(statuses={None: 'Here'}) def subscribeReceived(self, entity): self.subscribed(entity) self.available(statuses={None: 'Here'}) def unsubscribeReceived(self, entity): self.unsubscribed(entity) Thanks in advance.

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  • Forward declare HINSTANCE and friends

    - by abenthy
    Is there a way to forward-declare the HINSTANCE type from the WinAPI without including the full (and big) windows.h header? For example, if I have a class RenderWindow which owns an HINSTANCE mInstance, i will have to include windows.h in RenderWindow.h. So everything that needs RenderWindow also has to include windows.h. I tried including windef.h but this seems to need some things from windows.h. :-( If I can't forward declare it, is there at least a portable way to use something like long mInstance in RenderWindow instead of HINSTANCE?

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  • JavaMe Bluetooth service registration

    - by NoGlue
    Hello, I am trying to develope an application that offers a service via bluetooth. Everything works fine in the emulator but as soon I install it on a real device (6120/X6 Nokia) the service cannot be found. If I search for already registered services such as OBEX they are found. So I think it has something to do with the registration. This is how I register the service, all of this happens in its own thread. try { LocalDevice.getLocalDevice().setDiscoverable(DiscoveryAgent.GIAC); } catch (BluetoothStateException e) { } try { notifier = (StreamConnectionNotifier) Connector.open(m_url); ServiceRecord sr = local.getRecord(notifier); StreamConnection conn = notifier.acceptAndOpen(); } catch (IOException e) { } And this is what m_url looks like: "btspp://localhost:" + 0x1116 + ";name=BlueMatch"; Thanks for your time. Best regards

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  • Is it OK to mixed NumberLong and normal integers in the same field in MongoDB?

    - by Nicholas Tolley Cottrell
    I have been using Morphia to persistent objects from Java. I have also been running some batch processes from the console. I just realised that some values are now stored as NumberLong and number as plain Javascript numbers. I have an index on this field. Everything seems to be ok, but if I query: {f: 100} from the console it still returns the object even if it actually contains {f: NumberLong(100)} Is this true of all the drivers? It is best practice to avoid NumberLong is I can fit the value inside 32-bit? Will I save a lot of data and index space if I convert all NumberLongs to basic numbers?

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  • Connecting ipad to external monitor

    - by Josh P.
    I am trying to connect my ipad app to an external screen using the following (not checking the correct resolution for no - just want it up and running). - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { [window addSubview:[navigationController view]]; if ([[UIScreen screens] count] > 1) { window.screen = [[UIScreen screens] objectAtIndex:1]; } [window makeKeyAndVisible]; return YES; } Is this supposed to redirect everything to the external monitor? How dows it work with touches/gestures? I see in the Apple apps, the controls etc are left on the ipad screen...

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  • Online webcam chat. Free server and easy-to-implement client?

    - by Oskar Kjellin
    I have a client requesting that his users can use their webcams to talk to each other. From what I've understood the main thing to use for this is Flash. However as I have not written flash I would like to have something really easy to implement. Of course preferrably free (or trial). The idea of this is that everything but the chat alone is in .net. So the users will not use flash until they are actaully going to talk to each other. So there is no use for rooms here. I've been looking into silverlight some as well. But it seems like silverlight does not offer streaming between users..? I know this question has been asked many times here. But I could not find a suitable answer which is why I post a new question.

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  • Website with Microsites & Blog - recommendations

    - by pingu
    Hi guys, I'm in the process of scoping a solution for an events organisation. Their main website features information about them and blog entries etc, but they hold major events which require microsites (domain.com/event). The microsites all have a different look-and-feel, different nav structure, and custom content-managed components. The one thing that's common across everything is the blog - it will have a category for each event under which users can post. The main site will display all blog posts, but the microsites will only display posts for their category. How would you guys implement this? The solution needs to be PHP, and my initial thought was CodeIgniter but if possible I'd like to avoid building the blog functionality - so I guess I could integrate it with EE or Wordpress. If anyone has any other suggestions they would be most appreciated.

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  • JSTL XML Transforms not working with nested XSL includes

    - by timxyz
    I have a bit of JSP that does this: <c:import url="/xsl/Transformer.xsl" var="xslt" /> <x:transform doc="${actionBean.dom}" xslt="${xslt}" xsltSystemId="/xsl/"> This transforms the XML exactly as expected so long as Transformer.xsl contains no <xsl:include> tags or so long as any documents it does include do not include anything. However, if I use an XSL which includes a document which in turn includes another document, I get the following error: ERROR: 'Invalid URI 'NestedInclude.xsl Could not resolve entity reference: "NestedInclude.xsl"'.' Note that the JSP is contained in the directory below the xsl documents. If all my XSLs and JSPs are in the same directory (and I remove the xsltSystemId attribute) then everything would work fine, but I don't really want to do this. Can anyone see anything I'm doing wrong, as it's a bit of a killer at the moment and the JSTL documentation is next to useless.

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  • Language construct naming: Function/Goto

    - by sub
    How is a language construct with the following properties called? It has a beginning and an end, just like a function It has a header containing it's name, also like a function but without arguments There can be any number of statements between its beginning and end, like a function You can use a function to jump to its beginning from anywhere (even itself) and it will execute the statements contained in it until it reaches its end You can use a function to immediately stop the execution of its contents and jump back where it was called from The code it contains is in the same scope as everything else, so you can access all variables outside and create new ones which aren't deleted upon leaving the construct. All in all it is like a goto point with an end and the option to return where it was called from.

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  • Multiple Post Requests Occuring in Quick Succession

    - by Samuel
    This is a bit of an open ended question but we have a problem with a web application that on the final step of completing an order, multiple post requests are being made, sometimes up to 10 and all within a couple of seconds to the page. Theirs nothing unusual about the page, the user fills out a form which is then validated using the jQuery form validation plugin. We've seen this behavior exhibited over a couple of different browser types, notably IE6 but also IE8. We've also managed to trigger the bug ourselves but nothing out of the ordinary seems to occur on the browsers end, everything progresses as normal. Apache logs show that multiple post requests where made at the same time and the Rails logs show that multiple posts requests were also received by the application, leading me to think it's a problem with the browser. I've exhausted all avenues that I can think of for debugging so I'm throwing this out there to see if anyone has some ideas of what we could try or look for next.

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