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  • Mac OSX: Passing a file from user process to kernel module.

    - by Inso Reiges
    Hello, I need to pass a link to file from a user process to the OSX kernel driver. By link i mean anything that uniquely identifies a file on the local filesystem. I need that link to do I/O on that file in kernel. The most obvious solution seems to pass a file name and use a VFS vnode lookup. However i noticed, that Apple Disk Images helper process passes a raw data array for image-path property to driver when attaching a disk image file: <2f 56 6f 6c 75 6d 65 73 2f 73 74 6f 72 61 67 65 2f 74 65 73 74 32 2e 64 6d 67> What is that diskimages-helper passes to the kernel driver? Some serialized type perhaps? If yes, what type is it and how can i use it?

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  • How can I suspend \ resume the video caputre operation in v4l2 ?

    - by Ita
    Hi, I use the v4l2 api for video capture and image applying image processing algo' on each frame. I wish to be able to suspend the video capture. I see that there are 2 options for ioctling (new verb, its gonna catch) the stream. VIDIOC_STREAMON, VIDIOC_STREAMOFF will start and stop the stream. Is there a way to suspend \ resume it? Is this even necessary, or can I just use the start and stop controls with no extra processing time spent on creating the stream all over again ? Thank you for your time, Itamar

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  • How to set up a Bitmap with unmanaged data?

    - by Danvil
    I have int width, height; and IntPtr data; which comes from a unmanaged unsigned char* pointer and I would like to create a Bitmap to show the image data in a GUI. Please consider, that width must not be a multiple of 4, i do not have a "stride" and my image data is aligned as BGRA. The following code works: byte[] pixels = new byte[4*width*height]; System.Runtime.InteropServices.Marshal.Copy(data, pixels, 0, pixels.Length); var bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb); for(int i=0; i<height; i++) { for(int j=0; j<width; j++) { int p = 4*(width*i + j); bmp.SetPixel(j, i, Color.FromArgb(pixels[p+3], pixels[p+2], pixels[p+1], pixels[p+0])); } } Is there a more direct way to copy the data?

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  • How to store images efficiently (memory-wise) while still being able to process them

    - by Sheeo
    I'm working on a silverlight project where users get to create their own Collages. The problem When loading images into memory, I'm using BitmapImage so that they can be displayed directly with the Image control--but they're locked in afterwards. So I've tried storing them seperately aswell, but that just sucks up huge amounts of RAM. So in short, is there a class that'll let me store JPEG images, be able to show them with the image control, and still be able to export it afterwards? All this needs to be efficient--i.e. I'd rather not want any copying to ARGB arrays or use the WriteableBitmap to copy them over. I require to work with large collections of images, up to 300 at most. Any help apreciated!

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  • join two oracle queries

    - by coder247
    I've to query from two tables and want one result.. how can i join these two queries? First query is querying from two tables and the second one is only from one. select pt.id,pt.promorow,pt.promocolumn,pt.type,pt.image,pt.style,pt.quota_allowed,ptc.text,pq.quota_left from promotables pt,promogroups pg ,promotablecontents ptc ,promoquotas pq where pt.id_promogroup = 1 and ptc.country ='049' and ptc.id_promotable = pt.id and pt.id_promogroup = pg.id and pq.id_promotable = pt.id order by pt.promorow,pt.promocolumn select pt.id,pt.promorow,pt.promocolumn,pt.type,pt.image,pt.style,pt.quota_allowed from promotables pt where pt.type='heading'

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  • execute javascript before return in php

    - by user354051
    I do have a custom php script that validates captcha code and sends an email. If php script is sending a mail successfully then it returns "true". This is done by: if(!$Error){ echo "true"; exit; } Before returning true, I would like to execute a jQuery command that should refresh the captcha image. I shouldn't be doing this is client side as it might be risky from spammers point of view. To refresh the captcha image, The command is: jQuery('#captcha').attr('src', ('php/captcha/captchaimage_show.php?' + Math.random())); I need to call this command from within php scripts before return any results by "echo" Prashant

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  • jquery / javascript for a user to select 1 of n images

    - by TesterTurnedDeveloper
    I want to display a few images (probably 5 max) and have a user click to select one. First thing I tried was radio buttons and putting the images inside labels. <input type="radio" name="BackgroundId" id="BackgroundId" value="1" /> <label for="BackgroundId"><img src="../../Content/images/thumb_1.jpg" /></label> Firefox will select the radio button when the user clicks the image, but IE doesn't. Is there a jquery plugin that will make the images clickable? Fancy-form looks like something I could use, but it isn't jquery and I've already got jquery in my project. Or can someone point me to a better way of selecting a single image?

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  • IE - Color transparent not working

    - by poru
    Hello, I have a problem with the IE (what else?): I generate content with CSS which has also a background-image. I looks like that: #nav ul li:after { content: "--"; position: relative; z-index: 99; background: transparent url(image.png); color: transparent; } The text color is in non-IE-browsers transparent, but in all IE browsers it's black and you could see it. How could I make the text transparent/unvisible? I tried already: visibility - opacity - filter - text-indent ... But none did his job right, either it disappears (with it background which I need) or the attribute doesn't apply.

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  • jquery tabs changing on change?

    - by Steven
    Hello, I have two tabs each with different styles and different text. One recent posts and one recent comments the css for each are below with the ones I need to have when they are selected. So pretty much when a user selects the recent comments it will change the entire block to the second one (2). Pretty much changing width, and swapping the css for both tabs. I am currently using idtabs http://www.sunsean.com/idTabs/ My question: How can I have it change the tab css and width for both when the right tab is selected and then back again when the left tab is selected. CSS sideboxtopleft { float: left; width: 121px; height:20px; background-image: url(images/categorysplitter.gif); background-position:top right; background-repeat:no-repeat; text-align: center; padding-top: 10px; margin: 0; } sideboxtopleft2 { float: left; width: 173px; height:20px; background-image: url(images/categorysplitter.gif); background-position:top right; background-repeat:no-repeat; text-align: center; padding-top: 10px; margin: 0; } sideboxtopright { float: right; width: 173px; height: 20px; background-image:url(images/categorybg.gif); text-align: center; padding-top: 10px; margin: 0; } sideboxtopright2 { float: right; width: 121px; height: 20px; background-image:url(images/categorybg.gif); text-align: center; padding-top: 10px; margin: 0; } HTML <div id="sidebox" style="padding: 0px; width:294px;"> <div class="idTabs"> <div id="sideboxtopleft"> <a href="#post"><h3>RECENT POSTS <img src="images/arrow.gif" width="9" height="5" alt="v" border="0" /></h3></a> </div> <div id="sideboxtopright"> <a href="#comments"><h3>RECENT COMMENTS <img src="images/arrow2.gif" width="6" height="9" alt=">" border="0" /></h3></a> </div> </div> <div style="padding: 10px;"> <div id="post"> SUP? </div> <div id="comments"> SUP?>>!?>!! </div> </div> </div> <div id="sidebox" style="padding: 0px; width:294px;"> <div class="idTabs"> <div id="sideboxtopleft2"> <a href="#post2"><h3>RECENT COMMENTS <img src="images/arrow.gif" width="9" height="5" alt="v" border="0" /></h3></a> </div> <div id="sideboxtopright2"> <a href="#comments2"><h3>RECENT POSTS <img src="images/arrow2.gif" width="6" height="9" alt=">" border="0" /></h3></a> </div> </div> <div style="padding: 10px;"> <div id="post2"> SUP? </div> <div id="comments2"> SUP?>>!?>!! </div> </div> </div>

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  • How can I embed a conditional comment for IE with innerHTML?

    - by Samuel Charpentier
    Ok so I want to conditionally add this line of code; <!--[if ! IE]> <embed src="logo.svg" type="image/svg+xml" /> <![endif]--> Using: document.getElementById("logo") .innerHTML='...'; In a if()/else() statement and it don't write it! If i get rid of the selective comment ( <!--[if ! IE]><![endif]-->) and only put the SVG ( <embed src="logo.svg" type="image/svg+xml" /> ) it work! what should I do? I found a way around but i think in the Android browser the thing will pop up twice. here's what I've done ( and its Validated stuff!); <!DOCTYPE html> <html> <head> <META CHARSET="UTF-8"> <title>SVG Test</title> <script type="text/javascript"> //<![CDATA[ onload=function() { var ua = navigator.userAgent.toLowerCase(); var isAndroid = ua.indexOf("android") > -1; //&& ua.indexOf("mobile"); if(isAndroid) { document.getElementById("logo").innerHTML='<img src="fin_palais.png"/>'; } } //]]> </script> </head> <body> <div id="logo"> <!--[if lt IE 9]> <img src="fin_palais.png"/> <![endif]--> <!--[if gte IE 9]><!--> <embed src="fin_palais.svg" type="image/svg+xml" /> <!--<![endif]--> </div> </body>

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  • ArrayAdapter Help?

    - by ramsbh
    Hi i want to display a list view in my application. Each row should contains a text and an image. i have used ArrayAdapter to display this, but how to insert an image after the text.Please help ? String lvr[]={"Android","iPhone","BlackBerry","AndroidPeople"}; super.onCreate(savedInstanceState); setContentView(R.layout.main); list1 = (ListView) findViewById(R.id.cg_listview1); list1.setAdapter(new ArrayAdapter<String>(this,R.layout.alerts , lvr)); Here alerts is my layout contains only textView.

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  • My own HtmlHelper don't work in Asp.Net MVC 2

    - by name1ess0ne
    I have HtmlHelper in ASP.NET MVC 1. Now I wont to migrate to ASP.NET MVC 2, but this helper don't work =( public static string Image(this HtmlHelper helper, string url, string alt) { return string.Format("<img src=\"{0}\" alt=\"{1}\" />", url, alt); } public static string ImageLink<T>(this HtmlHelper helper, Expression<Action<T>> linkUrlAction, string imageUrlPath, string altText) where T : Controller { string linkUrl = helper.BuildUrlFromExpression(linkUrlAction);//compile time error string img = helper.Image(imageUrlPath, altText); string outputUrl = string.Format(@"<a href='{0}'>{1}</a>", linkUrl, img); return outputUrl; } Error: 'System.Web.Mvc.HtmlHelper' does not contain a definition for 'BuildUrlFromExpression' How I can fix this error?

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  • iPhone + selecting a portion of UIImage using some rectangular frame and than cropping it

    - by pratik
    Hello, I have requirement of selecting a portion of UIImage displayed on iPhone screen (for e.g. selecting the face from the image of some human being) using some rectangular type of frame. It means a rectangular type of frame can be moved across the image to place it at portion that we want. After placing it, I need to resize the frame in order to have that portion completely fit in the frame. Finally, the UIImage should be cropped so that I have a UIImage only displaying the portion that I selected using the frame. Please help me. Regards, Pratik

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  • Documents stored in SQL table

    - by vradenburg
    I have a legacy FoxPro application which stores documents in an SQL table in a field with the image datatype. FoxPro accesses the image datatype as a "General" field which can be used to store various files. I have a FoxPro control which interfaces with the General field for modifying/viewing the document that was stored. I need to migrate this control to .NET and make it easy for users to view/modify documents of various types. Does anyone have any suggestions on some ways to go about this or know of things that I'll need to consider for the migration to .NET? I'm pretty sure that I'll need to migrate the field to either a varbinary(max) or FileStream data type.

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  • dragging components in flex

    - by SuperString
    so I am trying to drag around some images in a canvas. I am adding eventlisteners to the components and calling startDrag() and stopDrag() to pick them up and stuff: component.addEventListener(MouseEvent.MOUSE_DOWN, component.startDrag) The problem is that it is selecting the image at its (0,0) location and not where I initially click on it. So there's a sudden "jump" when I click on the image. It is not smooth. I noticed that startDrag() has two default parameters, one of them is lockCenter and it is default to false. Maybe do I set it equal to true somehow? (I don't know how to pass arguments to my second parameter in addeventlistener) Another question: if I want to add more conditions to it, like make a new function that uses component.startDrag(), how do I pass the component to this function while adding event listener to it at the same time? for example: I want to do: component.addEventListener(MouseEvent.MOUSE_DOWN, some_other_function); where some_other_function uses component.startDrag(); Thanks!

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  • Serving CSS from a static domain

    - by Saif Bechan
    I want to serve my css and images from a static cookieless domain. Now my problem is how to point to the images from within my css files. I don't want to program my domain hard within the css file, for example: http://static.com/image.png I would rather have a variable pointing to the the image, so it works for every static domain i use. What is the best way for achieving this. Should i run the whole css file trough php and add the static domain in front of all the png references. A downside in this is that i have to place the whole css in html. Or is there another more optimized way of doing this.

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  • How to query data from a password protected https website

    - by Addie
    I'd like my application to query a csv file from a secure website. I have no experience with web programming so I'd appreciate detailed instructions. Currently I have the user login to the site, manually query the csv, and have my application load the file locally. I'd like to automate this by having the user enter his login information, authenticating him on the website, and querying the data. The application is written in C# .NET. The url of the site is: https://www2.emidas.com/default.asp. I've tested the following code already and am able to access the file once the user has already authenticated himself and created a manual query. System.Net.WebClient Client = new WebClient(); Stream strm = Client.OpenRead("https://www3.emidas.com/users/<username>/file.csv"); Here is the request sent to the site for authentication. I've angle bracketed the real userid and password. POST /pwdVal.asp HTTP/1.1 Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/x-shockwave-flash, */* User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; Tablet PC 2.0; OfficeLiveConnector.1.4; OfficeLivePatch.1.3; .NET4.0C; .NET4.0E) Content-Type: application/x-www-form-urlencoded Accept-Encoding: gzip, deflate Cookie: ASPSESSIONID<unsure if this data contained password info so removed>; ClientId=<username> Host: www3.emidas.com Content-Length: 36 Connection: Keep-Alive Cache-Control: no-cache Accept-Language: en-US client_id=<username>&password=<password>

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  • C#: Creating an editable object inside a PictureBox

    - by ET
    My goal is to let the user click on a specific location on a map to add a Placemark, and then edit the placemark by click its icon (change its name, move it around, etc). I am using a PictureBox to show the map, and by registering the MouseDoubleClick event I am drawing an Image on the map with GDI+ DrawImage() method. The problem is that after the placemark's Image was drawn, it does not editable: the user cant click the icon and move it around, change its name etc. Is there any other design pattern I can follow? maybe using other controls... ?

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  • Permission errors when cropping after taking a photo

    - by CGM
    Hello everybody, I want to take a photo with an Intent on android.provider.MediaStore.ACTION_IMAGE_CAPTURE, next crop the result with: Intent intent = new Intent("com.android.camera.action.CROP"); intent.setClassName("com.android.camera", "com.android.camera.CropImage"); I follow the sugestions made at: Android: Crop an Image after Taking it With Camera with a Fixed Aspect Ratio However when calling the crop activity I get (already checked the LogCat output) a permission error, saying something like: Permission denial on a Intent to access the temporary image created by the camera activity on my SDcard. Can you please suggest a solution for Android 2.2 ? Thank you

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  • changing img src with JQuery but leave pathing info intact?

    - by Kevin Won
    I'm using JQuery to switch out an image src thusly: $("#myImg").attr("src", "../../new.gif"); notice the relative pathing on the new src. Unfortunately, this isn't portable when I deploy my app. In my MVC app I'm using a ResolveUrl() method that will fix the pathing problem for me so it's portable, but now my JQuery image src swapper doesn't work right since it now switches the correctly resolved path to a broken relative one. <img id="myImg" src="<%=ResolveUrl("~/Images/transparent.gif")%>" /> What I want is for JQuery to just flip the actual filename and leave the path untouched. My first thought would be to // pseudocode javascript jquery on my thought on how to approach this prob var oldFullPath = $('#myImg").GetTheImgSrc; var newFileNameWithPathIntact = someRegexAddNewFileNameWithOldPath $("#myImg").attr("src", newFileNameWithPathIntact); but that seems rather gross and un-JQuery to me. Anyone got a better way?

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  • Using rendrer in list in flex

    - by Anshuman Jaiswal
    Hi all I am using list component in flex & using custom itemRenderer i.e I have made a component named frameRenrer(there are two controls ImageControl and label control) where I set the image source and label text on creationComplete event.And I providing the data using dataProvider function in List component.But actually problem is that when I scroll this list only 4 items are displayed repeatedly and to check it I make a function on mouseOver of image control in this I am using Alert.show(data.label); then it shows the correct data but it is not displayed in the list.In data provider I am using ArrayCollection. What is the problem anyone????

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  • Is it possible to serve an ASPX page without it setting a cookie on your browser?

    - by Django Reinhardt
    Hi, we're in the process of trying to speed up the performance of our website by serving static content from a cookieless domain. That seems to be going well, but I have a new question: I know that it's "static content" that we're talking about when serving it from a cookieless domain, but we also have static content being served by ASPX pages, specifically images. For example: domain.com/resizeImages.aspx?src=images/image123.jpg&width=400&height=400 Pretty standard stuff, and although it's being served by managed code, it's still a static image. So my question is: Is it ok to serve the resizeImages.aspx image from our cookieless/static domain? And if so, how do I go about stopping ASP.NET from setting a ANONYMOUSASPX cookie every time I try? Thanks for any help!

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