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  • jQuery UI Multiple Dialogue's

    - by J Harley
    Hello, I have a table and for every row I would like to create a dialogue box and a link that can be clicked to launch that dialogue box. E.g. Name 1 (click to get more details). { these are the details for name 1} Name 2 (click to get more details). { these are the details for name 2} So I would need a dialogue function that I can pass a custom title and body to... And then call that on the click of a link Click here to launch dialogue I hope I have made myself clear. Many Thanks, JPH

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  • Managing multiple AJAX calls to PHP scripts

    - by relativelycoded
    I have a set of 5 HTML dropdowns that act as filters for narrowing results returned from a mySQL database. The three pertinent filters are for "Province", "Region", and "City" selection, respectively. I have three functions: findSchools(), which runs when any of the filters (marked with CSS class .filter) are changed, and fetches the results via AJAX from a PHP script. Once that is done, two other functions are called... changeRegionOptions(), which, upon changing the "Province" filter, and updates the available options using the same method as the first function, but posting to a different script. changeCityOptions(), which runs if the "Region" filter was changed, and updates options, again using the same method. The problem is that since I want these AJAX functions to run simultaneously, and they by nature run asynchronously, I've tried using $.when to control the execution of the functions, but it doesn't fix the problem. The functions run, but the Region and City filters return blank (no options); the FireBug report shows absolutely no output, even though the POST request went through. The posted parameter for filter_province gets sent normally, but the one for region gets cut off at the end -- it sends as filter_region=, with no value passed. So I'm presuming my logic is wrong somewhere. The code is below: // When any of the filters are changed, let's query the database... $("select.filter").change(function() { findSchools(); }); // First, we see if there are any results... function findSchools() { var sch_province = document.filterform.filter_province.value; var sch_region = document.filterform.filter_region.value; var sch_city = document.filterform.filter_city.value; var sch_cat = document.filterform.filter_category.value; var sch_type = document.filterform.filter_type.value; $.post("fetch_results.php", { filter_province : sch_province, filter_region : sch_region, filter_city : sch_city, filter_category : sch_cat, filter_type : sch_type }, function(data) { $("#results").html(""); $("#results").hide(); $("#results").html(data); $("#results").fadeIn(600); } ); // Once the results are fetched, we want to see if the filter they changed was the one for Province, and if so, update the Region and City options to match that selection... $("#filter_province").change(function() { $.when(findSchools()) .done(changeRegionOptions()); $.when(changeRegionOptions()) .done(changeCityOptions()); }); }; This is just one of the ways I've tried to solve it; I've tried using an IF statement, and tried calling the functions directly inside the general select.filter.change() function (after findSchools(); ), but they all return the same result. Any help with this would be great!

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  • Raphael Scope Drag n drop multiple paper instances

    - by donald
    I have two Raphael paper instances. In both I want to drag and drop an element (circle). It is important for me to assign both these circles the same id. I expected no problem, as both are in different paper instances and therefore in different scope. What happens is, that somehow both elements react, when I have clicked both elements at least once. If I however give these elements different IDs everything works fine (each element only calls its "start", "drag" and "up" function if draged around). Is this intended behaviour of Raphael and do I have to assign different IDs to the elements in the different paper instances? Hopefully not and you can point me to the right direction :-) Thanks a lot for your Help in advance, Here comes the code: <!doctype html> <html> <head> <meta charset="utf-8" /> <title>DragNDrop</title> <script src="raphael-min.js"></script> </head> <body> <h1>Paper1</h1> <div id="divPaper1" style ="height: 150px; width: 300px; border:thin solid red"></div> <h1>Paper2</h1> <div id="divPaper2" style ="height: 150px; width: 300px; border:thin solid red"></div> <script> start1 = function () { console.log("start1"); } drag1 = function () { console.log("move1"); } up1 = function () { console.log("up1"); } start2 = function () { console.log("start2"); } drag2 = function () { console.log("move2"); } up2 = function () { console.log("up2"); } var paper1 = Raphael("divPaper1", "100%", "100%"); var circle1 = paper1.circle(40, 40, 30); circle1.attr("fill", "yellow"); circle1.id = "circle"; //both circles get the same id circle1.drag(drag1, start1, up1); paper2 = Raphael("divPaper2", "100%", "100%"); var circle2 = paper2.circle(40, 40, 30); circle2.attr("fill", "red"); circle2.id = "circle"; //both circles get the same id circle2.drag(drag2, start2, up2); </script> </body>

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  • Zend_Auth using multiple tables

    - by Christian
    What I'm trying to do is use Zend_Auth for authentication with the issuing being that the 'identity' is stored in a different table then then 'credential.' I'm able to pass an array for the credential and the identity but when it comes to the actual tables I'm not able to get it to accept the array. It ignores the 2nd table name. I was wondering if anyone has ever made this work in this way without extending the Zend_Auth class or if I will need to do so. Thanks in advance.

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  • Testing site performance with multiple browsers and versions

    - by jasongullickson
    We're trying to document the performance difference of our site using different browsers. We use LoadRunner for load testing but I don't see a way to specify the "browser engine" it uses to run it's tests (perhaps it's using it's own?). In any event I'm not sure that LoadRunner is the right tool for this job but we own it so if we can use it, great. If not, is there another tool out there that I can use to record a script and run it automatically against a site using several different browsers?

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  • Multiple consecutive alerts in Java ME

    - by Casebash
    According to the documentation, Display.setCurrent doesn't work if the current displayable is an alert. Does anyone know how to work around this so that we can go from one alert to another? I am using CLDC 1.0 and MIDP 2.0. My attempt The spec does allow us to edit an alert while it is on screen, but some Nokia phones don't handle it well at all. So I am now trying to go from the alert to a canvas, then back to the alert. Of course I don't want the user to interact with the previous canvas, so it seems that I am forced to create a new blank canvas. As a sidenote, this has the slight disadvantage of looking worse on phones which still have the previous screen when an alert is shown. The bigger problem is how to transition from the blank canvas back to an alert once the canvas is loaded. Testing on the Motorola emulator revealed that showNotify is not called after returning from an alert to the previous screen. I guess I could create the next alert in the paint method, but this seems like a ugly hack.

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  • how to do complete multiple replaces throughout table in ms-access

    - by silverkid
    i am a little confused in finding out what would be the best way to replace all occurances of 1. Blanks 2. - 3. NA from all collumns of TableA with question mark ? charachter. Sample Row in orignal tableA 444586 RAUR <blank> 8 570 NA - 13 - SCHS299 MP 339 70 EN <blank> Same Row in Expected TableA 444586 RAUR ? 8 570 ? ? 13 ? SCHS299 MP 339 70 EN ? please help me out I cant use the Find Replace Toolbar of access.

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  • SQL Server Multiple Joins Are Taxing The CPU

    - by durilai
    I have a stored procedure on SQL Server 2005. It is pulling from a Table function, and has two joins. When the query is run using a load test it kills the CPU 100% across all 16 cores! I have determined that removing one of the joins makes the query run fine, but both taxes the CPU. Select SKey From dbo.tfnGetLatest(@ID) a left join [STAGING].dbo.RefSrvc b on a.LID = b.ESIID left join [STAGING].dbo.RefSrvc c on a.EID = c.ESIID Any help is appreciated, note the join is happening on the same table in a different database on the same server.

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  • How to handle multiple delegates

    - by mac_55
    I've got a view in my app that does pretty much everything, and I like it that way. The problem however is that it's implementing 5 or 6 different delegates, which seems a little bit messy. My question is, does the view controller have to implement all of the delegates? or is there some way I can separate the code out into different files (without having to do a major restructure or rewrite)? Here's all the delegates I'm implementing: @interface MyView : UIViewController <UIScrollViewDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate, UIActionSheetDelegate, MFMailComposeViewControllerDelegate>

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  • .NET Regular Expression to split multiple words or phrases

    - by Cj Anderson
    I'm using the code below to take a string and split it up into an array. It will take: Disney Land and make it two separate elements. If the string contains "Disney Land" then it is one element in the array. Works great, however it adds some empty elements to the array each time. So I just iterate over the elements and remove them if they are empty. Is there a tweak to the code below that will prevent those empty elements from occurring? Private m_Reg As Regex m_Reg = New Regex("([^""^\s]+)\s*|""([^""]+)""\s*") Dim rezsplit = m_Reg.Split(criteria)

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  • Same route nested in multiple resources ember.js

    - by Daniel Upton
    I'm building an ember.js app which has a model called "Programme". A user can drill down to a programme by going: Genre > Subgenre > Programme or Folder > List > Programme Here's my router: this.resource('mylists', { path: '/' }, function() { this.resource('folder', { path: '/folder/:folder_id' }, function() { this.resource('list', { path: '/list/:list_id' }, function() { this.resource('programme', { path: '/programme/:programme_id' }); }); }); }); this.resource('catalogue', function() { this.resource('genre', { path: '/genre/:genre_id' }, function() { this.resource('subgenre', { path: '/subgenre/:subgenre_id' }, function() { this.resource('programme', { path: '/programme/:programme_id' }); }); }); }); The UI needs to be deeply nested (the genre view renders in the outlet of the catalogue template, the subgenre in the outlet of the genre template... and so forth). The problem I have is as both generated routes are called ProgrammeRoute when I linkTo the programme route inside the list template, it actually goes to the programme route nested in the subgenre route. What should I be doing here? To work around it I've named one route ListProgrammeRoute and SubgenreProgrammeRoute but that leads to some duplication.

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  • Help on understanding multiple columns on an index?

    - by Xaisoft
    Assume I have a table called "table" and I have 3 columns, a, b, and c. What does it mean to have a non-clustered index on columns a,b? Is a nonclustered index on columns a,b the same as a nonclustered index on columns b,a? (Note the order). Also, Is a nonclustered index on column a the same as a nonclustered index on a,c? I was looking at the website sqlserver performance and they had these dmv scripts where it would tell you if you had overlapping indexes and I believe it was saying that having an index on a is the same as a,b, so it is redundant. Is this true about indexes? One last question is why is the clustered index put on the primary key. Most of the time the primary key is not queried against, so shouldn't the clustered index be on the most queried column. I am probably missing something here like having it on the primary key speeds up joins? Great explanations. Should I turn this into a wiki and change the title index explanation?

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  • Hibernate query for multiple items in a collection

    - by aarestad
    I have a data model that looks something like this: public class Item { private List<ItemAttribute> attributes; // other stuff } public class ItemAttribute { private String name; private String value; } (this obviously simplifies away a lot of the extraneous stuff) What I want to do is create a query to ask for all Items with one OR MORE particular attributes, ideally joined with arbitrary ANDs and ORs. Right now I'm keeping it simple and just trying to implement the AND case. In pseudo-SQL (or pseudo-HQL if you would), it would be something like: select all items where attributes contains(ItemAttribute(name="foo1", value="bar1")) AND attributes contains(ItemAttribute(name="foo2", value="bar2")) The examples in the Hibernate docs didn't seem to address this particular use case, but it seems like a fairly common one. The disjunction case would also be useful, especially so I could specify a list of possible values, i.e. where attributes contains(ItemAttribute(name="foo", value="bar1")) OR attributes contains(ItemAttribute(name="foo", value="bar2")) -- etc. Here's an example that works OK for a single attribute: return getSession().createCriteria(Item.class) .createAlias("itemAttributes", "ia") .add(Restrictions.conjunction() .add(Restrictions.eq("ia.name", "foo")) .add(Restrictions.eq("ia.attributeValue", "bar"))) .list(); Learning how to do this would go a long ways towards expanding my understanding of Hibernate's potential. :)

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  • Multiple Service Address Configs in WCF Silverlight App

    - by CraigS
    My team is building our first significant Silverlight application, using a 3 layered architecture and WCF. We have developed about 10 separate WCF services in the middle layer so far, and this number is only going to grow. Generally, the presentation layer (ie. the Silverlight app) is pointing to the services as hosted on our dev server. However, there are times when I want it to access the services from localhost - ie. the developers machine. Is there an easy way to change where the presentation layer is looking for the services? Is there some way of easily switching between options here?

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  • How do i pack multiple rectangles in a 2d box tetris style

    - by mglmnc
    I have a number of rectangles of various widths and heights. I have a larger rectangular platform to put them on. I want to pack them on one side of the platform so they spread in the lengthwise (X) dimension but keep the widthwise (Y) dimension to a minimal. That is to place them like a tetris game. There can be no overlaps but there can be gaps. Is there an algorithm out there to do this?

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  • Ajax, Multiple Attachments and Paperclip question.

    - by dustmoo
    Alright everyone this is a bit of a complicated setup so if I need to clarify the question just let me know. I have a model: class IconSet < ActiveRecord::Base has_many :icon_graphics end This Model has many icongraphics: class IconGraphic < ActiveRecord::Base belongs_to :icon_set has_attached_file :icon has_attached_file :flagged end As you can see, IconGraphic has two attached files, basically two different versions of the icon that I want to load. Now, this setup is working okay if I edit the icongraphic's individually, however, for ease of use, I have all the icon graphics editable under the IconSet. When you edit the icon set the form loads a partial for the icongraphics: <% form_for @icon_set, :html => {:class => 'nice', :multipart => true} do |f| %> <fieldset> <%= f.error_messages %> <p> <%= f.label :name %> <%= f.text_field :name, :class => "text_input" %> </p> <!-- Loaded Partial for icongraphics --> <div id="icon_graphics"> <%= render :partial => 'icon_graphic', :collection => @icon_set.icon_graphics %> </div> <div class="add_link"> <%= link_to_function "Add an Icon" do |page| page.insert_html :bottom, :icon_graphics, :partial => 'icon_graphic', :object => IconGraphic.new end %> </div> <p><%= f.submit "Submit" %></p> </fieldset> <% end %> This is based largely off of Ryan's Complex Forms Railscast. The partial loads the file_field forms: <div class="icon_graphic"> <% fields_for "icon_set[icon_graphic_attributes][]", icon_graphic do |icon_form|-%> <%- if icon_graphic.new_record? -%> <strong>Upload Icon: </strong><%= icon_form.file_field :icon, :index => nil %><br/> <strong>Upload Flagged Icon: </strong><%= icon_form.file_field :flagged, :index => nil %> <%= link_to_function image_tag('remove_16.png'), "this.up('.icon_graphic').remove()"%><br/> <% else -%> <%= image_tag icon_graphic.icon.url %><br/> <strong>Replace <%= icon_graphic.icon_file_name %>: </strong><%= icon_form.file_field :icon, :index => nil %><br /> <% if icon_graphic.flagged_file_name.blank? -%> <strong>Upload Flagged Icon: </strong><%= icon_form.file_field :flagged, :index => nil %> <% else -%> <strong>Replace <%= icon_graphic.flagged_file_name %>: </strong><%= icon_form.file_field :flagged, :index => nil %> <%= icon_form.hidden_field :flagged, :index => nil %> <% end -%> <%= link_to_function image_tag('remove_16.png'), "mark_for_destroy(this, '.icon_graphic')"%><br/> <%= icon_form.hidden_field :id, :index => nil %> <%= icon_form.hidden_field :icon, :index => nil %> <%= icon_form.hidden_field :should_destroy, :index => nil, :class => 'should_destroy' %> <br/><br/> <%- end -%> <% end -%> </div> Now, this is looking fine when I add new icons, and fill both fields. However, if I edit the IconSet after the fact, and perhaps try to replace the icon with a new one, or if I uploaded only one of the set and try to add the second attachment, paperclip doesn't put the attachments with the right IconGraphic Model. It seems that even though I have the IconGraphic ID in each partial, <%= icon_form.hidden_field :id, :index => nil %> it seems that paperclip either creates a new IconGraphic or attaches it to the wrong one. This all happens when you save the IconSet, which is setup to save the IconGraphic attributes. I know this is complicated.. I may just have to go to editing each icon individually, but if anyone can help, I would appreciate it.

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  • regex split and extract multiple parts from a string

    - by nLL
    I am trying to extract some parts of the "Video:" line from below text. Seems stream 0 codec frame rate differs from container frame rate: 30000.00 (300 00/1) -> 14.93 (1000/67) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\a.3gp': Metadata: major_brand : 3gp5 minor_version : 0 compatible_brands: 3gp5isom Duration: 00:00:45.82, start: 0.000000, bitrate: 357 kb/s Stream #0.0(und): Video: mpeg4, yuv420p, 352x276 [PAR 1:1 DAR 88:69], 344 kb /s, 14.93 fps, 14.93 tbr, 90k tbn, 30k tbc Stream #0.1(und): Audio: aac, 16000 Hz, mono, s16, 11 kb/s Stream #0.2(und): Data: mp4s / 0x7334706D, 0 kb/s Stream #0.3(und): Data: mp4s / 0x7334706D, 0 kb/s* This is an output from ffmpeg command line where i can get Video: part with private string ExtractVideoFormat(string rawInfo) { string v = string.Empty; Regex re = new Regex("[V|v]ideo:.*", RegexOptions.Compiled); Match m = re.Match(rawInfo); if (m.Success) { v = m.Value; } return v; } and result is mpeg4, yuv420p, 352x276 [PAR 1:1 DAR 88:69], 344 kb What i am trying to do is to somehow split that line and get mpeg4 yuv420p 352x276 [PAR 1:1 DAR 88:69] 344 kb assigned to different string objects instead of single

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  • Inserting multiple types into an SQLite database with Python

    - by mankoff
    I'm trying to create an SQLite 3 database from Python. I have a few types I'd like to insert into each record: A float, and then 3 groups of n floats, currently a tuple but could be an array or list.. I'm not well-enough versed in Python to understand all the differences. My problem is the INSERT statement. DAS = 12345 lats = (42,43,44,45) lons = (10,11,12,13) times = (1,2,3,4,5,6,7,8,9) import sqlite3 connection = sqlite3.connect("test.db") cursor = connection.cursor() cursor.execute( "create table foo(DAS LONG PRIMARY KEY,lats real(4),lons real(4), times real(9) )" ) I'm not sure what comes next. Something along the lines of: cmd = 'INSERT into foo values (?,?,?,?), ..." cursor.execute(cmd) How should I best build the SQL insert command given this data?

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  • Perl: Deleting multiple re-occuring lines where a certain criteria is met

    - by george-lule
    Dear all, I have data that looks like below, the actual file is thousands of lines long. Event_time Cease_time Object_of_reference -------------------------- -------------------------- ---------------------------------------------------------------------------------- Apr 5 2010 5:54PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=LUGALAMBO_900 Apr 5 2010 5:55PM Apr 5 2010 6:43PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=LUGALAMBO_900 Apr 5 2010 5:58PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 5:58PM Apr 5 2010 6:01PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 6:01PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 6:03PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=KAPKWAI_900 Apr 5 2010 6:03PM Apr 5 2010 6:04PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=KAPKWAI_900 Apr 5 2010 6:04PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSJN1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=KAPKWAI_900 Apr 5 2010 6:03PM Apr 5 2010 6:03PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 6:03PM NULL SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA Apr 5 2010 6:03PM Apr 5 2010 7:01PM SubNetwork=ONRM_RootMo,SubNetwork=AXE,ManagedElement=BSCC1,BssFunction= BSS_ManagedFunction,BtsSiteMgr=BULAGA As you can see, each file has a header which describes what the various fields stand for(event start time, event cease time, affected element). The header is followed by a number of dashes. My issue is that, in the data, you see a number of entries where the cease time is NULL i.e event is still active. All such entries must go i.e for each element where the alarm cease time is NULL, the start time, the cease time(in this case NULL) and the actual element must be deleted from the file. In the remaining data, all the text starting from word SubNetwork upto BtsSiteMgr= must also go. Along with the headers and the dashes. Final output should look like below: Apr 5 2010 5:55PM Apr 5 2010 6:43PM LUGALAMBO_900 Apr 5 2010 5:58PM Apr 5 2010 6:01PM BULAGA Apr 5 2010 6:03PM Apr 5 2010 6:04PM KAPKWAI_900 Apr 5 2010 6:03PM Apr 5 2010 6:03PM BULAGA Apr 5 2010 6:03PM Apr 5 2010 7:01PM BULAGA Below is a Perl script that I have written. It has taken care of the headers, the dashes, the NULL entries but I have failed to delete the lines following the NULL entries so as to produce the above output. #!/usr/bin/perl use strict; use warnings; $^I=".bak" #Backup the file before messing it up. open (DATAIN,"<george_perl.txt")|| die("can't open datafile: $!"); # Read in the data open (DATAOUT,">gen_results.txt")|| die("can't open datafile: $!"); #Prepare for the writing while (<DATAIN>) { s/Event_time//g; s/Cease_time//g; s/Object_of_reference//g; s/\-//g; #Preceding 4 statements are for cleaning out the headers my $theline=$_; if ($theline =~ /NULL/){ next; next if $theline =~ /SubN/; } else{ print DATAOUT $theline; } } close DATAIN; close DATAOUT; Kindly help point out any modifications I need to make on the script to make it produce the necessary output. Will be very glad for your help Kind regards George.

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  • Determine which mouse was clicked (multiple mice devices) in .NET

    - by Morten K
    Hi, I want to detect when my touchpad is clicked! I normally use a usb mouse, so I don't use the touchpad for anything. Instead I'd like to make it possible to perform an action in .NET, when the touchpad is clicked. This way I can use it as a shortcut: One tap and something cool happens. Is this possible, and if yes, any clue how? I'd prefer if it could be working in VB.NET or C#. My theory is that I'd have to make a mousehook, which then somehow determines which device the click is coming from. If the click is determined to be from the touchpad, then cancel the click and doWhatever(). Thanks!

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  • Android multiple screen sizes and density problems

    - by Ben Mc
    I'm having a real problem with my drawables that I just can't seem to figure out. The problem is this: There are screen sizes at approximately 320x480, 480x800, 480x854 Then there are most commonly densities at 1.0 (160) and 1.5 (240) Now, on a Droid, the screen size is 480x800 and the density is reporting using DisplayMetrics as 1.5 On the G1, it's 320x480 and reporting back at a density of 1.0 BUT tablet devices are reporting back at 480x800 with a density of 1.0 (160) So, I'm going mad because I can put 320x480 images in the drawables-mdpi folder and 480x800 images in the drawables-hdpi folder, but on Tablet computers, no matter what it's not resizing up anything to a full screen. Any help would be greatly appreciated. I just want all of my 320x480 images to scale up regardless of the device.

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  • C++ Returning Multiple Items

    - by Travis Parks
    I am designing a class in C++ that extracts URLs from an HTML page. I am using Boost's Regex library to do the heavy lifting for me. I started designing a class and realized that I didn't want to tie down how the URLs are stored. One option would be to accept a std::vector<Url> by reference and just call push_back on it. I'd like to avoid forcing consumers of my class to use std::vector. So, I created a member template that took a destination iterator. It looks like this: template <typename TForwardIterator, typename TOutputIterator> TOutputIterator UrlExtractor::get_urls( TForwardIterator begin, TForwardIterator end, TOutputIterator dest); I feel like I am overcomplicating things. I like to write fairly generic code in C++, and I struggle to lock down my interfaces. But then I get into these predicaments where I am trying to templatize everything. At this point, someone reading the code doesn't realize that TForwardIterator is iterating over a std::string. In my particular situation, I am wondering if being this generic is a good thing. At what point do you start making code more explicit? Is there a standard approach to getting values out of a function generically?

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  • Manage multiple UDP calls

    - by rayman
    Hi all, I would like to have an advice for this issue: I am using Jbos 5.1.0, EJB3.0 I have system, which sending requests via UDP'S to remote modems, and suppose to wait for an answer from the target modem. the remote modems support only UDP calls, therefor I o design asynchronous mechanism. (also coz I want to request X modems parallel) this is what I try to do: all calls are retrieved from Data Base, then each call will be added as a message to JMS QUE. let's say i will set X MDB'S on that que, so I can work asynchronous. now each MDB will send UDP request to the IP-address(remote modem) which will be parsed from the que message. so basicly each MDB, which takes a message is sending a udp request to the remote modem and [b]waiting [/b]for an answer from that modem. [u]now here is the BUG:[/u] could happen a scenario where MDB will get an answer, but not from the right modem( which it requested in first place). that bad scenario cause two wrong things: a. the sender which sent the message will wait forever since the message never returned to him(it got accepted by another MDB). b. the MDB which received the message is not the right one, and probablly if it was on a "listener" mode, then it supposed to wait for an answer from diffrent sender.(else it wouldnt get any messages) so ofcourse I can handle everything with a RETRY mechanisem. so both mdb's(the one who got message from the wrong sender, and the one who never got the answer) will try again, to do thire operation with a hope that next time it will success. This is the mechanism, mybe you could tell me if there is any design pattren, or any other effective solution for this problem? Thanks, ray.

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