Stop image from loading once it has been requested.

I am working on an applet for viewing information on maps. I load a background map and then data is displayed over the map. The map loads in tiles, as the user drags the map additional tiles are loaded in the new location. The user can also zoom in to get a closer view.
Problem is, I start loading tiles as soon as the view changes. If the user clicks several times quickly, or does several quick drags, I end up starting several images that immediately become obsolete.
I know I have phantom images loading because the connection slows to a crawl in this situation. I have tried...
myImage.flush();
myImage=null;
But that is not working.
Is there any way to kill the download of an image once it has started?

Here is my idea{
Maybe you coudl put it in a try catch block, have a boolean unwanted image, and then throw an IOException when its true? I think that would stop it, and then set the image to false:
try{
    if(unwantedImage) throw new IOException:
    //load Image
} catch (IOException e){
     return;  //this should stop loading, if the IOException doesn't
   }That is all I can think of.

Similar Messages

  • A "To" email address disappears completely from email once it has been sent? In "sent" folder ok.

    A "To" email address disappears completely from email once it has been sent? It is in "sent" folder ok, the To field is clear and the cc field is as it was. Not sure if the email has gone to the person or not?

    I have discovered this site which claims the ability to do what you might want. I have no personal experience of it!
    http://www.icopybot.com/itunes-backup-manager.htm

  • Illustrator settings stopping images from loading.

    Files i've previously created in illustrator and exported to PDF now give me and error when opening both the origonal file and the PDF. I am told the pictures within it cannot be found, and i am asked to repair/replace/etc. - when sending these raw files to another Adobe user, they can open the file and see all the images - and when i open the PDF in acrobat i can see them all fine. But when i open the PDF/AI in illustrator it tells me the images cannot be found.
    This is obviously a setting within my illustrator - i just dont know where to find this - as now im having to re-use these files and this makes it all but impossible to work with them.
    Any help is appreciated.

    Were the original AI files saved with PDF compatbility enables? Yes
    Were the PDFs saved with AI Editability enabled? Yes
    Have you tried opening the PDF in Photoshop and selecting only the images. It should be able to resave the images from Photoshop and then relink in AI.
    This isnt what i want - i can re-save the images as is with acrobat, i want this "cache" thats in the background to disspear and show me the images embedded, rather than hiding them in-favour of looking for a live image. I have over 300 imges over the booklet im doing - so i want illustrator to do what its told and let me re-use these pages without me having to save more images and link them again, then have the same problem later in the future

  • What can be erased from internal once iTunes has been copied to external?

    I was running out of internal space so i decided to run my iTunes from an external hd... now I just need to know what folders or information is safe to erase from my internal hd.

    What exactly did you copy to the external? Don't say your *iTunes library* as there are no folders named *iTunes library*.
    What settings exactly did you change in iTunes?

  • Prevent images from loading

    Is there anyway I could stop images from loading unless I ask safari to load them? There is a feature like this in apple's mail program that I use and would like to use it in safari also. I'm so tired of seeing advertisments with half-naked women and other perverted things as well.
    thanks

    Ah, man, I looked there too, yes you're correct..Yay
    thanks

  • How do I stop youtube images from loading after trying to do so in the options?

    I have gone into Options under Tools and unchecked the "Load images automatically" box, restarted my computer, and typed in the google search bar, Adrienne Barbeau. Various hits come up, but the one I select is the Adrienne Barbeau Voluptuous link. It is a youtube video. I select it and it loads and plays! Along the right side of the page are other videos whose images also load. So what I did in Options did not work. Then I tried leaving that box checked and clicking on "Exceptions". I typed in "www.youtube.com" and I clicked on "block" and then it was entered in the bigger box below the data entry field. Again, I closed that, clicked on OK, and then restarted my computer. Nothing happened. Nothing was blocked on youtube. There has to be a way to disable youtube images from loading! What is it?!

    Hi,
    Please also try adding ytimg.com in Exceptions. You can right-click on an image and '''Copy Image Location''' to get the address, or '''View Image''' to show it in the location (address) bar.
    [https://support.mozilla.org/en-US/kb/Options%20window%20-%20Content%20panel Content]
    [https://support.mozilla.org/en-US/kb/Options%20window Options]

  • Is there a way we can use Acrobat Standard to assign a password for opening of signed PDF file once it has been downloaded from DocuSign?

    Prior to implementing DocuSign, we used to scan manually signed document to a PDF file and then store the PDF file in a HR file share.  We would then use Adobe Writer Standard to assign a read/write password to the PDF file.  We now use DocuSign to have documents electronically signed and download the DocuSign PDF in our HR folders.  However Adobe Acrobat Writer does not allow us to assign a password.  It pops up a dialog box saying ""you cannot change security on this document because the document is signed or certified".  We want to continue being able to store the PDF in our HR file share with passwords to restrict who can view off the share.  Is there a way we can assign a password to the PDF file once it has been downloaded from DocuSign?

    Thanks Bernd.  We can't assign passwords before signature process starts as people will not be able to open the PDF without knowing the password.  I think we will change our process and simply leave the electronically signed PDF in DocuSign and then "print" the PDF to our local file share for internal HR purposes.  thanks again.

  • How to prevent images from loading?

    I am working on creating a web gallery in Dreamweaver CS3.  The thumbnails are in a horizontal strip within a layer above the full sized image layer, in other words the strip is  hiding part of the image, but only when the image is in a vertical orientation. (the strip has no background, so all that is visible are the actual thumbnails) Upon clicking show/hide text , in a toggle configuration, the strip fades, or shows.   On my computer it works perfectly. However, once uploaded, it takes forever to load the images.
    The problem: Although I have the thumbnail images are set to preload,  all of the full size images are loading as well, which takes alot of time. Is there a way to prevent the full sized images from loading, i.e. only when the thumbnail is clicked?
    Frames, in which one frame is thumbnails, and another the is images, is what I normally would use, and have a page for each image. However, for what I have in mind, it will not work (transparency on parts of one frame above another is as far as I can tell not possible).
    So how do I prevent images from loading until called for?  regards~bill-o

    t would help if you posted a link to the page, but I can guess that you have properly diagnosed the cause - the page is encumbered with the weight of all of the full-sized images.
    The only way to not have this happen would be to dynamically write the link to the full sized-images on demand, as it were.  In other words, the link ISN'T EVEN ON THE PAGE until you have clicked on the corresponding thumbnail, and only at that point is the weight of that image experienced.  One easy way to do this is to use the SetText of Container behavior that is part of DW's native arsenal of behaviors.  When the thumb is clicked, the SetText behavior is called to write the image link into the enlarged image's container. Need to see a demo?  Look here -
    http://dreamweaverresources.com/tutorials/settextoflayer.htm
    The behavior is called "Set Text of Container", and using it will meet all of your requirements.
    To use it, you will have to have the following:
    1.  A page with a 'container' which is to receive the enlarged image - this could be a table cell, a paragraph tag, a div, or even a span tag.
    2.  That container will have to be identified with an ID attribute and a valid value, e.g., <div id="enlargedImage">.
    3.  A dummy page containing each enlarged image, placed sequentially on the page.
    To implement the effect, do the following:
    1.  Open the dummy page in Code view, and select the first image's tag, e.g., <img src="images/foo.jpg" width="123" height="256" alt="whatever" /> (XHTML syntax shown here).
    2.  Switch to the actual page, select a thumb that will 'open' this enlarged image, and enter "javascript:;" (that's colon semicolon) in the 'Link' field of the Property inspector to make this thumbnail image a null link.
    3.  Apply the Set Text of Container behavior.
    4.  Paste the clipboard into the dialog for the behavior, and click OK to close the dialog.
    5.  Examine the Behavior panel to see which mouse event has been defaulted - probably 'onclick'.  If you would rather have this be 'onmouseover' use the Behavior panel Event selector (the dark triangle to the right of the event name) to select 'onmouseover'.
    5.  Repeat from #1 above until all thumbs have been treated.
    Let us know if this does not make sense

  • Pages slow to load or do not load, then time out, sometimes stopping page from loading will reveal it or stopping and refreshing it, though not always.

    pages will not always load or take forever, if i stop it from loading and refresh it it may load right away though not always. It is like the old days @ 33K, never used to happen, basically have all the same plugins have always had.
    has been doing this for several months now, finally can't take it any more, all malware, virus, scans are clean, settings are the same for last ? years.
    do get script problems from time to time but not very often.
    loading say New egg, will take forever or will not completely load page, have backed up all bookmarks, etc: removed and reinstalled but no change.
    any Ideas would be of great help. I have been using Firefox, since it's inception and don't want to switch browsers.
    Thank You,
    Mark

    A possible cause is security software (firewall) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
    Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
    See:
    *https://support.mozilla.org/kb/Server+not+found
    *https://support.mozilla.org/kb/Firewalls

  • How can I allow a sub-vi to run independent of the main program once it has been called while still sending data to the sub-vi

    I have a main program where I call a sub-vi. In this sub-vi, there is a while loop that is used to wait for commands in the sub-vi. While the while loop is running, I cannot continue with normal operation of the main program. I would like get the sub-vi to run independently once it has been called, but not hold up the main program. As well, I need to still be able to send data to the sub-vi

    One way is to use VI Server, which has been mentioned by others. This will allow you to start another VI (by name) and run it entirely independently of the calling VI. This is a good way to start various independent VIs from a main menu, for example. None of the VIs thus called need have any connection to the others.
    Another way it to have the SubVI in a separate while loop on the calling VI's BD. Then, use a local var to start this sub VI from the main loop. The calling VI sets a local START bit and continues running. The sub VI's while loop watches for this START bit to go true, and then runs the Sub VI. The advantage here is that one can more easily pass arguments to the SubVI when it is started, using local vars, which are preferable to globals. Once the Su
    bVI is running, however, you must use a global Stop Bit, set in the calling VI, to stop it when the calling VI exits, or the calling VI will hang up, waiting for the Sub VI to close and exit its while loop.
    If you need an example of this, email me. ([email protected]). I can also recommend Gary W. Johnson's excellent book which discusses this. ("LabVIEW Graphical Programming", 2nd Ed).
    Note: Where possible, I try to call a subvi from within the main VI, wait till it is done, then continue. It avoids the use of locals & globals, and results in cleaner code, with fewer "race" conditions. However, the main VI stops until the subVI is done, hence one should make the subVI modal.

  • Stop Video from loading automatically...

    Hi Everyone,
    I have a VideoDisplay control that I want to play some video,
    however I want to control when the video to be played should load.
    At the moment, video is automatically loaded even though autoplay
    has been set to false. Stopping the video from playing doesn't seem
    to stop it from loading. Can I stop the video from loading at all?
    Thanks for your help,
    - Tony

    Clark_Kent101 wrote:
    > Hi Everyone,
    >
    > I have a VideoDisplay control that I want to play some
    video, however I want
    > to control when the video to be played should load. At
    the moment, video is
    > automatically loaded even though autoplay has been set
    to false. Stopping the
    > video from playing doesn't seem to stop it from loading.
    Can I stop the video
    > from loading at all?
    >
    > Thanks for your help,
    >
    > - Tony
    >
    Have you tried Enabled="false"
    Mark

  • How do you reassign a device to Mac OS once it has been assigned to the Windows OS using Parallels?

    How do you reassign a device to Mac OS once it has been assigned to the Windows OS using Parallels?  I've tried ejecting device and plugging in again.  I've tried restarting Mac and shutting down Mac completely, but never get the device window to pop up to select the Mac for the device.

    See:
    http://download.parallels.com/desktop/v5/docs/en/Parallels_Desktop_Users_Guide/2 6819.htm
    That is one topic from the guide, not the whole guide

  • How to I cancel an af:poll, once it has been set

    Hi.
    I would like to know how to programmatically stop/cancel an "af:poll" once it has been initialized/started.
    I have seen an example of whereby, Javascript is used via a clientlistener, to then perform an "event.cancel"; is there also a direct way within a backing bean to also cancel and/or stop the poll wth
    Thanks.
    Edited by: [email protected] on Jun 4, 2010 12:39 PM

    You will need to implement your own BoundedRangeModel and handle stopping the af:poll.
    Take a look at this example: http://www.oracle.com/technology/products/jdev/tips/fnimphius/progressbarcolor/index.html?_template=/ocom/print
    Nick

  • All of my music that wasn't purchased from the itunes store has been faded out on my ipod, despite me being able to play them in itunes. half my songs have exclamation points but only in the 'on this ipod' section, and when i double-click no window appear

    I'm freaking out because almost all my music except for those songs purchased directly from the iTunes store has been deleted from my iPod - about 35 gigs. The songs show up, but they're all faded out and unplayable from my device (I have the newest version). Exclamation points appear beside all my songs in the "On this iPod" section, and yet I can't double-click to locate the files as nothing pops up. Some of my music has a weird circle next to it and is even more faded out when I'm in the "On this iPod" section - that's been happening for a couple of days. Yesterday I tried to set my settings to sync with my library only, and it worked, but this morning everything got even worse with the rest of my songs disappearing. What's happening???? Help??

    The syncing of music is one way, computer to phone. See this helpful document from a fellow user. Credit goes to the author.
    https://discussions.apple.com/docs/DOC-3141

  • How do I stop ITunes from loading songs into library when played from an external hard drive

    How do I stop ITunes from loading every song I play into my library from an external hard drive?

    Mac OS X: Double-Clicking a File Opens the Wrong Application - http://support.apple.com/kb/TS2291
    -= Changing the application used to open all files of a certain kind (written with reference to OSX 10.4 but may not have changed) =-
    1) In a Finder window highlight a file of the kind you want to change the application to open that kind of file.
    2) While that file is highlighted, select File > Get Info or press command (apple or propeller icon) + i to get a file information window.
    3) In the lower part of the info window there is an "open with" menu with a list of applications.
    4) If your application is already in the box then it is the default application for opening that kind of file and you don't need to do anything more.  Close the get info window.
    5) If the application showing in the menu is not the one with which you wish to open the file then select a new application. If your application does not appear there then select the "other..." and track down the application (usually in the Applications folder at the main level of the computer).
    6) If you wish to change all files of this type to open with this application in future, make sure the "change all" button is selected.
    7) Close the get info window.

Maybe you are looking for