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  • Editing an UIImage

    - by wwrob
    I have an UIImage that I want to edit (say, make every second row of pixels black). Now I am aware of the functions that extract PNG or JPEG data from the image, but that's raw data and I have no idea how the png/jpeg files work. Is there a way I can extract the colour data from each pixel into an array? And then make a new UIImage using the data from the array?

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  • Android: Playing an audio clip onClick

    - by fordays
    How do I set up an audiofile to play when a user touches an image. Where should I store the audio file and what code should I use to actually play the file? I don't want to bring up the MediaPlayer interface or anything like that. I was thinking of doing it like this: foo = (ImageView)this.findViewById(R.id.foo); foo.setOnClickListener(this); public void onClick(View v) { if (foo.isTouched()) { playAudioFile(); } } Thanks

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  • Are there any .net classes/functions that are optimized for multiple cores?

    - by diamandiev
    I know that the developer is supposed to do this himself. But seeing how we are getting cpu's with more and more cores and there are still many developers who do not use multithreading, if we have this functionality built in, it could increase performance dramatically in some scenarios. One particular example where this could be quite useful is in image processing. I doubt that the built in GDI+ classes are multithreaded.

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  • Weather API to mobile platform

    - by Alex
    Hello everybody! I would like to ask from you guys/girls somebody used radar image api in MOBILE PLATFORM? I got some good provider but the user agreement don`t allow to use it in mobile platform. Even some good weather forecast API exists? (with moon phase,5-7 days forecast) and radar images ? Maybe search by US zip code?

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  • How can I stop Flash from changing indent when user Clicks on hyperlink in TextField?

    - by Paul Chernoch
    I have a TextField which I initialize by setting htmlText. The text has anchor tags (hyperlinks). When a user clicks on the hyperlink, the indentation of the second and subsequent lines in the paragraph changes. Why? How do I stop it? My html has an image at the beginning of the line, followed by the tag, followed by more text. To style the hyper links to look blue always and underlined when the mouse is over them, I do this: var css:StyleSheet = new StyleSheet(); css.parseCSS("a {color: #0000FF;} a:hover {text-decoration: underline;}"); stepText.styleSheet = css; stepText.htmlText = textToUse; stepText.visible = true; Here is a fragment of the html text (with newlines and exrta whitespace added to improve readability - originally it was one long line): <textformat indent="-37" blockindent="37" > <img src="media/interface/level-1-bullets/solid-circle.png" align="left" hspace="8" vspace="1"/> American Dental Association. (n.d.). <i>Cleaning your teeth and gums (oral hygiene)</i>. Retrieved 11/24/08, from <a href="http://www.ada.org/public/topics/cleaning_faq.asp" target="_blank">http://www.ada.org/public/topics/cleaning_faq.asp </a> </textformat> <br/> As it turns out, the text field is of a width such that it wraps and the second line starts with "Retrieved 11/24/08". Clicking on the hyper link causes this particular line to be indented. Subsequent paragraphs are not affected. ASIDE: The image is a list bullet about 37 pixels wide. (I used images instead of li tags because Flash does not allow nested lists, so I faked it using a series of images with varying amounts of whitespace to simulate three levels of indentation.) IDEA: I was thinking of changing all hyperlinks to use "event:" as the URL protocol, which causes a TextEvent.LINK event to be triggered instead of following the link. Then I would have to open the browser in a second call. I could use this event handler to set the html text to itself, which might clear the problem. (When I switch pages in my application and then come back to the page, everything is OKAY again.) PROBLEM: If I use the "event:" protocol and user tries the right-mouse button click, they will get an error, or so I am told. (See http://www.blog.lessrain.com/as3-texteventlink-and-contextmenu-incompatibilities/ ) I do not like this trade-off.

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  • Correlation between font size in Flash and .NET/GDI+

    - by danbystrom
    I guess the title contains my whole question. How can I draw a string onto an image in Flash and .NET/GDI+ respectively and gain the same result? (I'm not a Flash programmer myself and it is rather hard to find out about what kind of unit Flash uses by googling for something like "flash font size"...) Ekeforshus

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  • passing uiimageview as a parameter in NStimer selector??

    - by hemant
    i created a function onTimer passing it a uiimageview parameter...but when i call this function in a NStimer call as shown below i get a syntax error?? is there any other way around it?? [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(onTimer:image) userInfo:nil repeats:YES];

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  • Rails each loop insert tag every 6 items?

    - by dustmoo
    Hello Stack Anon, I have X number of image objects that I need to loop through in a view and want to create a new div every 6 objects or so (for a gallery). I have looked at cycle but it seems to change every other record. Does anyone know of a way to insert code into a view every 6 times? I could probably do it with nested loops but I am kinda stumped on this one. Thanks!

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  • Local Histogram Equalization with Matlab

    - by Mertie Pertie
    hi all Histogram equalization is simple with histeq function but when it comes local hist. eq., im supposed to use a neighbourhood and move it along the image matrix and do it locally at each iteration. I wonder how I can implement it with Matlab, is it possible if i use histeq for each neighbourhood or is there any other predefined m-function for this operation.

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  • LAMP v/s WAMP in PHP

    - by Ajith
    I have a small server problem when working with LAMPP and WAMP server in PHP.I am using LAMPP server for local development and I need to host in WAMP server.When try to read an image from a dynamic created pdf file in LAMPP, it is working perfectly but, the same one not compact able with WAMP server.What will be the problem?Any additional feature need to configure in WAMP.Please help me to go forward.Please........

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  • excel automation edit existing chart

    - by user330737
    Hi Everyone, I need excel automation expert here. I have chart with x-axis contains label: Jan,Feb,Mar,Apr and y-axis contains label: 10,20,30,40. Chart type is Bar. Can anyone show me a csharp code how to change to Bar color to different color if the month is Mar? I hope you guy understand my question since I can't put the image on stackoverflow. thank you

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  • Is visual Studio 2010 express edition free

    - by nCdy
    Possible Dupe: http://stackoverflow.com/questions/2624589/visual-studio-express-2010-license Sorry for newbie question, but I saw there was some license file on ISO image and it tells it wont allow me to develop commercial software , but there was Free registration, and I think that after registration I can develop application on it for free . Correct me if I'm not right or Tell me if I am :) thanks.

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  • Help with psudo classes in CSS

    - by Anil Namde
    <a class="success" href="javascript:void(0)"></a> //CSS for setting background for above link a.success:hover{ //set background image } What my intent is to change the class of link on server side based on success/fail and set icon for the link accordingly. But above CSS is not working as expected. Can someone plz help with this.

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  • Actionscript 3 E4X working with MMS values in XML

    - by user150946
    I am building an application using Action script 3 I am retrieving some XML from the web however the node names are mms:Image mms:Results etc my action script compiler is throwing an error becuase it is not expecting to see the semi colon in the node name. How to I access the nodes? thanks

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  • Netbeans: Using JavaMail in normal Java projects

    - by Yohan
    I am creating an desktop application which is capable of sending emails. I downloaded mail.jar and javaee.jar and added it to my project libraries. However, when I am trying to use it, it gives me the error java.lang.ExceptionInInitializerError Caused by: java.lang.RuntimeException: Uncompilable source code - package javax.mail does not exist I imported those packages as, import javax.mail.* It added correctly, as shown in the following image. Please help!! How can I make this work?

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  • Load large images into Bitmap?

    - by GuyNoir
    I'm trying to make a basic application that displays an image from the camera, but I when I try to load the .jpg in from the sdcard with BitmapFactory.decodeFile, it returns null. It doesn't give an out of memory error which I find strange, but the exact same code works fine on smaller images. How does the generic gallery display huge pictures from the camera with so little memory?

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  • showing content from subdomain

    - by coure06
    I have a root site in httpdocs folder. There is another website (for subdomain) at httpdocs/demo1 Mapping is like www.abc.com to httpdocs demo1.abco.com to httpdocs/demo1 How can I show image from demo1 folder? I want to access it like www.abc.com/demo1/images/some.png Error: Parser Error Message: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.

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  • Android browser touch events stop display being updated inc. canvas/elements - How to work around?

    - by Ed Kirk
    On some android's native browser touching the page seems to stop the display from being updated until the finger is released. This occurs for both html element based animation (switching classes) and for canvas based animation. It does not however stop normal js execution and other events are fired as normal. On devices with this problem the dolphin browser also seems effected (not firefox though). Touchstart/move both have preventDefault() fired as well as stopPropergation(), cancelBubble = true; and e.returnValue = false;. In the CSS webkit selection has also been disabled. The page will not scroll. A similar question has been asked here: Does Android browser lock DOM on touchStart? but I'd like to find out if this behaviour can be overcome, or at least to discover what devices will be effected by the problem, is it a device or version android issue? If you cannot answer the question running the demo and reporting your experience along with your device model and useragent (displayed at bottom of demo page) as a comment might help others or myself answer the question. Here is a demo and steps to reproduce the behaviour. A QR code for the link can be found here https://s3-eu-west-1.amazonaws.com/canvas-test-pd/tmp.png. https://s3-eu-west-1.amazonaws.com/canvas-test-pd/index.html The web page has a canvas at the top and a div with a background image at the bottom. Every second the canvas is cleared and a different image displayed and the div has it's class switched (both toggle between 0 and 1 pngs). Once this has toggled a few times place your finger on the canvas (the top grey box) and hold it there. Wait to see if the animation continues (sometimes it will once or twice then stops) and if there are any visual distortions. Update It seems that the Galaxy Tab running 3.2 requires handlers for touchstart/end of document, not just required divs for the screen to continue updating the display. Thanks jimpic. I'm starting to believe it's an issue caused by manufacturers skins, although this is difficult to prove.

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