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  • ATL and types from scrrun.dll

    - by MaxFX
    Hello. I have interface in ATL project which must contains member with parameter of Scripting::IDictionary** but in MIDL file with description of my interface it's not possible because Scripting library is not presented in default library. I always have scrrun.tlb and trying to use it in MIDL but it's not work Code is here: midl-code

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  • how to limit the number of images to be displayed at a time in android imageswitcher control?

    - by Rupesh Chavan
    Hello Everyone, I have checked the working demo of ImageSwitcher and gallery. Actually i want to display 4 images at a time on screen and by default it displays number of images that it can fit in a screen say for ex. 6 images. Now i want to limit the number of images(to 4 images ) to be displayed on ImageSwitcher at the same time. Any help will be appreciated. Thank you, Rupesh

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  • Optimize date query for large child tables: GiST or GIN?

    - by Dave Jarvis
    Problem 72 child tables, each having a year index and a station index, are defined as follows: CREATE TABLE climate.measurement_12_013 ( -- Inherited from table climate.measurement_12_013: id bigint NOT NULL DEFAULT nextval('climate.measurement_id_seq'::regclass), -- Inherited from table climate.measurement_12_013: station_id integer NOT NULL, -- Inherited from table climate.measurement_12_013: taken date NOT NULL, -- Inherited from table climate.measurement_12_013: amount numeric(8,2) NOT NULL, -- Inherited from table climate.measurement_12_013: category_id smallint NOT NULL, -- Inherited from table climate.measurement_12_013: flag character varying(1) NOT NULL DEFAULT ' '::character varying, CONSTRAINT measurement_12_013_category_id_check CHECK (category_id = 7), CONSTRAINT measurement_12_013_taken_check CHECK (date_part('month'::text, taken)::integer = 12) ) INHERITS (climate.measurement) CREATE INDEX measurement_12_013_s_idx ON climate.measurement_12_013 USING btree (station_id); CREATE INDEX measurement_12_013_y_idx ON climate.measurement_12_013 USING btree (date_part('year'::text, taken)); (Foreign key constraints to be added later.) The following query runs abysmally slow due to a full table scan: SELECT count(1) AS measurements, avg(m.amount) AS amount FROM climate.measurement m WHERE m.station_id IN ( SELECT s.id FROM climate.station s, climate.city c WHERE -- For one city ... -- c.id = 5182 AND -- Where stations are within an elevation range ... -- s.elevation BETWEEN 0 AND 3000 AND 6371.009 * SQRT( POW(RADIANS(c.latitude_decimal - s.latitude_decimal), 2) + (COS(RADIANS(c.latitude_decimal + s.latitude_decimal) / 2) * POW(RADIANS(c.longitude_decimal - s.longitude_decimal), 2)) ) <= 50 ) AND -- -- Begin extracting the data from the database. -- -- The data before 1900 is shaky; insufficient after 2009. -- extract( YEAR FROM m.taken ) BETWEEN 1900 AND 2009 AND -- Whittled down by category ... -- m.category_id = 1 AND m.taken BETWEEN -- Start date. (extract( YEAR FROM m.taken )||'-01-01')::date AND -- End date. Calculated by checking to see if the end date wraps -- into the next year. If it does, then add 1 to the current year. -- (cast(extract( YEAR FROM m.taken ) + greatest( -1 * sign( (extract( YEAR FROM m.taken )||'-12-31')::date - (extract( YEAR FROM m.taken )||'-01-01')::date ), 0 ) AS text)||'-12-31')::date GROUP BY extract( YEAR FROM m.taken ) The sluggishness comes from this part of the query: m.taken BETWEEN /* Start date. */ (extract( YEAR FROM m.taken )||'-01-01')::date AND /* End date. Calculated by checking to see if the end date wraps into the next year. If it does, then add 1 to the current year. */ (cast(extract( YEAR FROM m.taken ) + greatest( -1 * sign( (extract( YEAR FROM m.taken )||'-12-31')::date - (extract( YEAR FROM m.taken )||'-01-01')::date ), 0 ) AS text)||'-12-31')::date The HashAggregate from the plan shows a cost of 10006220141.11, which is, I suspect, on the astronomically huge side. There is a full table scan on the measurement table (itself having neither data nor indexes) being performed. The table aggregates 237 million rows from its child tables. Question What is the proper way to index the dates to avoid full table scans? Options I have considered: GIN GiST Rewrite the WHERE clause Separate year_taken, month_taken, and day_taken columns to the tables What are your thoughts? Thank you!

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  • Intercept method calls in Python

    - by eaigner
    Hi. I'm implementing a RESTful web service in python and would like to add some QOS logging functionality by intercepting function calls and logging their execution time and so on. Basically i thought of a class from which all other services can inherit, that automatically overrides the default method implementations and wraps them in a logger function. What's the best way to achieve this?

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  • jQuery: tabs where the tab/content can be linked to

    - by Ricardo Zea
    My issue is simple. I have already implemented a tab system, and I'd probably spend more time implementing another one with the solution I need, than giving a shot at adapting the code I have, and learn something while asking :) My problem is that the tabs can't be linked to, I need to be able to link to a tab from another website or page, and have that tab get selected upon page load. ie: I have three tabs showing different products, by default tab 1 is active/selected when the page loads. From the home page I want to link to tab 2 but I can't link to tab 2 because it doesn't get selected. Not sure if that makes sense. Tabs: <ul> <li><a href="products.php">Product 1</a></li> <li><a href="products.php">Product 2</a></li> <li><a href="products.php">Product 3</a></li> </ul> <div class="tab_container"> <div id="tab1" class="tab_content">Product 1 info...</div> <div id="tab2" class="tab_content">Product 2 info...</div> <div id="tab3" class="tab_content">Product 3 info...</div> </div> my jQuery: $(document).ready(function() { //Default Action $(".tab_content").hide(); $("ul.tabs li:first").addClass("active").show(); $(".tab_content:first").show(); //On Click Event $("ul.tabs li").click(function() { $("ul.tabs li").removeClass("active"); $(this).addClass("active"); $(".tab_content").hide(); var activeTab = $(this).find("a").attr("href"); $(activeTab).fadeIn(); return false; }); }); Is there a way this code can be adapted to be able to link to any tab from anywhere and have that tab get selected when the page loads? Thanks in advance.

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  • How to 'do' ByVal in C#

    - by Jouke van der Maas
    As I understand it, C# passes parameters into methods by reference. In vb.net, you can specify this with ByVal and ByRef. The default is ByVal. Is this for compatibility with vb6, or is it just random? Also, how can I specify what to use in C#? I kind of like the idea of passing parameters by value.

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  • overriding big popup on directions Google Maps

    - by Glycerine
    I've happily implemented v2 of Google maps to my site without a hitch, I also successfully perform a drive directions using GDirections.load(). What I need to do is stop the popup of the mini map when you select a particular step in the routing directions. So when the user clicks on say "step 3", instead of the default popup showing a mini map, I'd like to add a custom icon to that position. Hope it makes sense Thanks in advance guys.

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  • Using Crypt32 with Dev-Cpp - Unable to link to CryptUnprotectData

    - by jgworks
    While trying to compile the example code from 'Example C Program: Using CryptProtectData' I ran into a roadblock; The linker cannot find CryptUnprotectData. Here is the console output: Compiler: Default compiler Building Makefile: "C:\Dev-Cpp\test\Makefile.win" Executing make... make.exe -f "C:\Dev-Cpp\test\Makefile.win" all gcc.exe main.o -o "Project1.exe" -L"C:/Dev-Cpp/lib" -l crypt32 main.o(.text+0xcb):main.c: undefined reference to `CryptProtectData' main.o(.text+0x121):main.c: undefined reference to `CryptUnprotectData' collect2: ld returned 1 exit status make.exe: *** [Project1.exe] Error 1 Execution terminated

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  • How to REALLY focus a link using jQuery / javascript

    - by Bobby Jack
    Calling the jQuery focus() method on a link appears to only partially focus the link. Whilst the link has focus to the extent that pressing ENTER follows the link, it doesn't take on the default outline styling (or adopt any styling set via the :focus pseudo-class), nor is the tab-order correctly 'entered'. Any ideas on how to resolve this? (results observed in Firefox 3.6.2)

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  • adding user to windows make the administrator icon to disappear !

    - by user283322
    Hello I used the command "net user" to add a new admin user to windows like that: net user myuser11 myuser11 /add net localgroup Administrators myuser11 /add the problem that after restart windows I only see the icon of the "myuser" and the default windows "Administrator" login icon disappeared !! the "Administrator" files still exists and I can login as "Administrator" after ctrl+alt+del but I need of course to display the "Administrator" icon in welcome screen how I fix that ? I use windows xp sp3 thanks

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  • Best WordPress "contact us" plugin?

    - by alex
    I've seen a few, and tried out Contact Form 7, which is pretty good but by default looks quite ugly. I've also had a quick dig, and it looks hard to add some hooks for CSS. It also doesn't use the label element. What is the best standards compliant easy skinnable contact Wordpress plugin in your experience?

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  • jQuery DatePicker UI regional

    - by ScG
    I am aware that we can localize datepicker using $(selector).datepicker($.datepicker.regional['fr']); However can we do something like if a user passes in a value that's not supported by the datepicker regional, then automatically shift to the default language Something like: if(datepicker.regional does not support the language) $.datepicker.setDefaults($.datepicker.regional['']);

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  • How to combine designable components with dependency injection

    - by Wim Coenen
    When creating a designable .NET component, you are required to provide a default constructor. From the IComponent documentation: To be a component, a class must implement the IComponent interface and provide a basic constructor that requires no parameters or a single parameter of type IContainer. This makes it impossible to do dependency injection via constructor arguments. (Extra constructors could be provided, but the designer would ignore them.) Some alternatives we're considering: Service Locator Don't use dependency injection, instead use the service locator pattern to acquire dependencies. This seems to be what IComponent.Site.GetService is for. I guess we could create a reusable ISite implementation (ConfigurableServiceLocator?) which can be configured with the necessary dependencies. But how does this work in a designer context? Dependency Injection via properties Inject dependencies via properties. Provide default instances if they are necessary to show the component in a designer. Document which properties need to be injected. Inject dependencies with an Initialize method This is much like injection via properties but it keeps the list of dependencies that need to be injected in one place. This way the list of required dependencies is documented implicitly, and the compiler will assists you with errors when the list changes. Any idea what the best practice is here? How do you do it? edit: I have removed "(e.g. a WinForms UserControl)" since I intended the question to be about components in general. Components are all about inversion of control (see section 8.3.1 of the UMLv2 specification) so I don't think that "you shouldn't inject any services" is a good answer. edit 2: It took some playing with WPF and the MVVM pattern to finally "get" Mark's answer. I see now that visual controls are indeed a special case. As for using non-visual components on designer surfaces, I think the .NET component model is fundamentally incompatible with dependency injection. It appears to be designed around the service locator pattern instead. Maybe this will start to change with the infrastructure that was added in .NET 4.0 in the System.ComponentModel.Composition namespace.

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  • Why no switch on pointers?

    - by meeselet
    For instance: #include <stdio.h> void why_cant_we_switch_him(void *ptr) { switch (ptr) { case NULL: printf("NULL!\n"); break; default: printf("%p!\n", ptr); break; } } int main(void) { void *foo = "toast"; why_cant_we_switch_him(foo); return 0; } gcc test.c -o test test.c: In function 'why_cant_we_switch_him': test.c:5: error: switch quantity not an integer test.c:6: error: pointers are not permitted as case values Just curious. Is this a technical limitation? EDIT People seem to think there is only one constant pointer expression. Is that is really true, though? For instance, here is a common paradigm in Objective-C (it is really only C aside from NSString, id and nil, which are merely a pointers, so it is still relevant — I just wanted to point out that there is, in fact, a common use for it, despite this being only a technical question): #include <stdio.h> #include <Foundation/Foundation.h> static NSString * const kMyConstantObject = @"Foo"; void why_cant_we_switch_him(id ptr) { switch (ptr) { case kMyConstantObject: // (Note that we are comparing pointers, not string values.) printf("We found him!\n"); break; case nil: printf("He appears to be nil (or NULL, whichever you prefer).\n"); break; default: printf("%p!\n", ptr); break; } } int main(void) { NSString *foo = @"toast"; why_cant_we_switch_him(foo); foo = kMyConstantObject; why_cant_we_switch_him(foo); return 0; } gcc test.c -o test -framework Foundation test.c: In function 'why_cant_we_switch_him': test.c:5: error: switch quantity not an integer test.c:6: error: pointers are not permitted as case values It appears that the reason is that switch only allows integral values (as the compiler warning said). So I suppose a better question would be to ask why this is the case? (though it is probably too late now.)

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  • How to create expandable FAQ page in HTML?

    - by CSharperWithJava
    I'd like to create an FAQ page for my website that lists all of the questions as hyperlinks. When the link is clicked, the answer for that question should expand out beneath it. The answers need to be hidden by default, and preferably clicking the link toggles the answers' visibility. Any thoughts?

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  • Ctrl-Backspace Visual Studio 2010

    - by Chris Watts
    I recently upgraded to Visual Studio 2010 and found out that when i press Ctrl-Backspace on a empty line it will delete the line, which is what it did in 2008, but then it will also delete the last character on the line above. I have tried to see if there is any settings anywhere but i cant seem to find any. Does anyone know if you can change this or did they make it default in 2010 Im using C#, if that makes a difference.

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  • Accessing the buffered request body in HttpWebRequest?

    - by Greg Beech
    By default HttpWebRequest has AllowWriteStreamBuffering set to true, which means that all data written to the request stream is buffered inside the object. I'd like to access this buffer of data after it has been written, but can't seem to find any way to do so. I'm happy for it to fail if AllowWriteStreamBuffering is false. Is there any way to do this, or is it not exposed anywhere?

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  • JQuery validation not working for checkbox group

    - by Chris Halcrow
    I'm having trouble getting JQuery validation to work with a set of checkboxes. I'm generating the checkboxes using an ASP.NET checkboxlist, and I've used JQuery to set the 'name' attribute to the same thing for each checkbox in the list. Here's the code that gets written to the browser. I'm setting the 'validate' attribute on the 1st checkbox to set the rule that at least one checkbox must be selected. The JQuery validation works for all other elements on the form, but not for the checkbox list. I'm also using a JQuery form wizard on the page which triggers validation for each 'page' of the form, so I don't have control over how the validation is called. <input id="ContentPlaceHolder1_MainContent_AreaOfInterest_0" class="ui-wizard-content ui-helper-reset ui-state-default" type="checkbox" value="Famine" name="hello[]" validate="required:true, minlength:1"> <label for="ContentPlaceHolder1_MainContent_AreaOfInterest_0">Famine</label> <br> <input id="ContentPlaceHolder1_MainContent_AreaOfInterest_1" class="ui-wizard-content ui-helper-reset ui-state-default" type="checkbox" value="Events Volunteer" name="hello[]"> <label for="ContentPlaceHolder1_MainContent_AreaOfInterest_1">Events Volunteer</label> Any ideas on what's going wrong? There are lots of examples of JQuery scripts that will do the validation, however I'm trying to avoid this as I'm generating the checkboxlist server side by a custom control so that it can be re-used across different pages that may or may not have JQuery enabled. I'm trying to enable the JQuery validation whilst being as unobtrusive as possible, so that pages will still work even if JQuery is disabled. Here are the relevant JQuery inclusions and JQuery initialisation script for the form wizard. I'm not using any initialisation code for JQuery validation: <script type="text/javascript" src="../js/formwizard/js/bbq.js"></script> <script type="text/javascript" src="../js/formwizard/js/jquery.form.js"></script> <script type="text/javascript" src="../js/formwizard/js/jquery.form.wizard.js"></script> <script type="text/javascript" src="../js/formwizard/js/jquery.validate.js"></script> <script type="text/javascript"> $(document).ready(function () { $("#form1").formwizard({ validationEnabled: true, focusFirstInput: true }); }); </script>

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  • Syntax highlighting in vim

    - by Rimian
    I'm having trouble reading dark blue on black when I turn on syntax colours in vim. How do I change some of the default colours or the colours of schemas like: http://www.vim.org/scripts/script.php?script_id=1571

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