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  • Negative number representation across multiple architechture

    - by Donotalo
    I'm working with OKI 431 micro controller. It can communicate with PC with appropriate software installed. An EEPROM is connected in the I2C bus of the micro which works as permanent memory. The PC software can read from and write to this EEPROM. Consider two numbers, B and C, each is two byte integer. B is known to both the PC software and the micro and is a constant. C will be a number so close to B such that B-C will fit in a signed 8 bit integer. After some testing, appropriate value for C will be determined by PC and will be stored into the EEPROM of the micro for later use. Now the micro can store C in two ways: The micro can store whole two byte representing C The micro can store B-C as one byte signed integer, and can later derive C from B and B-C I think that two's complement representation of negative number is now universally accepted by hardware manufacturers. Still I personally don't like negative numbers to be stored in a storage medium which will be accessed by two different architectures because negative number can be represented in different ways. For you information, 431 also uses two's complement. Should I get rid of the headache that negative number can be represented in different ways and accept the one byte solution as my other team member suggested? Or should I stick to the decision of the two byte solution because I don't need to deal with negative numbers? Which one would you prefer and why?

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  • PHP: Handling Multiple Submit Buttons

    - by sebb
    Would like to get a consensus as to what the best practice is in this scenario: Muliple submit buttons, is it better to handle this by having separate FORMS for each one of the submits, OR is it okay to have one form and check which button was pressed? thank you for your input :D

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  • Passing multiple parameters of same column to SQL Server select SP

    - by Bill
    I have a string value in the web.config — for example 2 guids seperated by a ",". I need to query the database dynamically (i.e i have no idea how many values could be seperated by a comma in the web.config) and run a select statement on the table passing these values and getting all that is relevant for example: select * from tablename where columnname = string1 string2 string3 etc etc some strings may only contain 1 guid some may contain 10

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  • Django url tag multiple parameters

    - by Overdose
    I have two similar codes. The first one works as expected. urlpatterns = patterns('', (r'^(?P<n1>\d)/test/', test), (r'', test2), {% url testapp.views.test n1=5 %} But adding the second parameter makes the result return empty string. urlpatterns = patterns('', (r'^(?P<n1>\d)/test(?P<n2>\d)/', test), (r'', test2),) {% url testapp.views.test n1=5, n2=2 %} Views signature: def test(request, n1, n2=1):

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  • substrings and multiple textfields, AS3

    - by VideoDnd
    How do I get my text fields to populate correctly and show single digits? Description Each textfield receives a substring. This doesn't limit it's input, because the text fields shows extra numbers. The counters are set to 2,200,000.00, just to see if the numbers are populating. Ex A is the one I'm trying to fix. Ex A the one I want to fix //Tweening method 'could substitute code with Tweener' import fl.transitions.Tween; import fl.transitions.easing.*; //Timer that will run a sec and repeat var timer:Timer = new Timer(1000); //Integer values var count:int = +220000000; var fcount:int = 0; //Events and starting timer timer.addEventListener(TimerEvent.TIMER, incrementCounter); addEventListener(Event.ENTER_FRAME, checkOdometerPosition); timer.start(); //Tween Variables var smoothLoop:int = 0; var originalYPosition:Number = 0; var upwardYPosition:Number = -99; //Formatting String function formatCount(i:int):String { var fraction:int = i % 100; var whole:int = i / 100; return ("0000000" + whole).substr(-7, 7) + "." + (fraction < 10 ? "0" + fraction : fraction); } //First Digit function checkOdometerPosition(event:Event):void{ if (seconds9.y <= upwardYPosition){ var toText:String = formatCount(fcount); //seconds9.firstDigit.text = formatCount(fcount); seconds9.firstDigit.text = toText.substr(9, 9); seconds9.y = originalYPosition; seconds8.firstDigit.text = toText.substr(8, 8); seconds8.y = originalYPosition; seconds7dec.firstDigit.text = toText.substr(7, 7); seconds7dec.y = originalYPosition; seconds6.firstDigit.text = toText.substr(6, 6); seconds6.y = originalYPosition; seconds5.firstDigit.text = toText.substr(5, 5); seconds5.y = originalYPosition; seconds5.firstDigit.text = toText.substr(4, 4); seconds5.y = originalYPosition; seconds3.firstDigit.text = toText.substr(3, 3); seconds3.y = originalYPosition; seconds2.firstDigit.text = toText.substr(2, 2); seconds2.y = originalYPosition; seconds1.firstDigit.text = toText.substr(1, 1); seconds1.y = originalYPosition; seconds1.firstDigit.text = toText.substr(1, 1); seconds1.y = originalYPosition; seconds0.firstDigit.text = toText.substr(0, 1); seconds0.y = originalYPosition; } } //Second Digit function incrementCounter(event:TimerEvent):void{ count++; fcount=int(count) if (smoothLoop < 9){ smoothLoop++; } else { smoothLoop = 0; } var lolly:String = formatCount(fcount-1); //seconds9.secondDigit.text = formatCount(fcount); seconds9.secondDigit.text = lolly.substr(9, 9); var addTween9:Tween = new Tween(seconds9, "y", Strong.easeOut,0,-222, .7, true); seconds8.secondDigit.text = lolly.substr(8, 8); var addTween8:Tween = new Tween(seconds8, "y", Strong.easeOut,0,-222, .7, true); seconds7dec.secondDigit.text = lolly.substr(7, 7); var addTween7dec:Tween = new Tween(seconds7dec, "y", Strong.easeOut,0,-222, .7, true); seconds6.secondDigit.text = lolly.substr(6, 6); var addTween6:Tween = new Tween(seconds6, "y", Strong.easeOut,0,-222, .7, true); seconds5.secondDigit.text = lolly.substr(5, 5); var addTween5:Tween = new Tween(seconds5, "y", Strong.easeOut,0,-222, .7, true); seconds4.secondDigit.text = lolly.substr(4, 4); var addTween4:Tween = new Tween(seconds4, "y", Strong.easeOut,0,-222, .7, true); seconds3.secondDigit.text = lolly.substr(3, 3); var addTween3:Tween = new Tween(seconds3, "y", Strong.easeOut,0,-222, .7, true); seconds2.secondDigit.text = lolly.substr(2, 2); var addTween2:Tween = new Tween(seconds2, "y", Strong.easeOut,0,-222, .7, true); seconds1.secondDigit.text = lolly.substr(1, 1); var addTween1:Tween = new Tween(seconds1, "y", Strong.easeOut,0,-222, .7, true); seconds0.secondDigit.text = lolly.substr(0, 1); var addTween0:Tween = new Tween(seconds0, "y", Strong.easeOut,0,-222, .7, true); } Ex A has 10 text objects, each with a pair of text fields. It’s move complex than Ex B, because it has a Y animation and pairs of numbers. The text objects are animated to create a scrolling effect. It moves vertically, and has a lead number and a catch up number contained in each symbol. See illustration for more description. Ex B work fine! for example only //STRING SPLITTER COUNTER with nine individual text fields //Timer settings var delay:uint = 1000/100; var repeat:uint = 0; var timer:Timer; timer = new Timer(delay,repeat); timer.addEventListener(TimerEvent.TIMER, incrementCounter); timer.start(); //Integer values var count:int = 0; var fcount:int = 0; //Format Count function formatCount(i:int):String { var fraction:int = i % 100; var whole:int = i / 100; return ("0000000" + whole).substr(-7, 7) + "." + (fraction < 10 ? "0" + fraction : fraction); } //Split strings off to individual text fields function incrementCounter(event:TimerEvent) { count++; fcount=int(count+220000000) var toText:String = formatCount(fcount); mytext9.text = toText.substr(9, 9); mytext8.text = toText.substr(8, 8); mytext7dec.text = toText.substr(7, 7); mytext6.text = toText.substr(6, 6); mytext5.text = toText.substr(5, 5); mytext4.text = toText.substr(4, 4); mytext3.text = toText.substr(3, 3); mytext2.text = toText.substr(2, 2); mytext1.text = toText.substr(1, 1); mytext0.text = toText.substr(0, 1); }

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  • Using multiple databases within one application

    - by Alex
    I have a web application made for several groups of people not connected with each other. Instead of using one database for all of them, I'm thinking about making separate databases. This will improve the speed of the queries and make me free from checking to what group the user belongs. But since I'm working with LINQ to SQL, my classes are explicitly connected with the databases, so I will have to make separate DataContexts for all of the databases. So how can I solve this problem? Or should I just not bother and use one database only?

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  • On select show multiple divs?

    - by chaser7016
    Hi I am trying when a user chooses an airline from dropdown seen here that two additional drop downs appear for departing airport and arrival airport. I have coded it to work when one chooses American Airlines from drop down, but I need different departing and arrival airports to appear for the various a user may choose. Anyone know how that can be done? thanks

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  • Dynamically including multiple files within php for image descriptions

    - by Steve Jones
    Working on implementing image descriptions to a php run gallery and can't seem to figure out how to call each text file for each individual image. //total number of images $total = 77; //max number of thumbnails per page $max = 9; //what image do we want to start from? $startcount = $_GET["start"]; //if there is not a defined starting image, we start with the first if(empty($startcount)) { $startcount = 0; } //start off the loop at 1 $loop = 1; //start the loop while($loop <= $max) { //for the picture labels $num = $startcount + $loop; if($num > $total) { $num = $num - 1; break; } // Add class="last" to every third list item if(is_int($num / 3)) { $last = ' class="last"'; } else { $last = ""; } //the code for the image echo ' <li'.$last.'><a href="images/portfolio/pic-'.$num.'.jpg" rel="milkbox[gall1]"><img src="images/portfolio/thumbs/pic-'.$num.'-thumb.jpg" width="256" height="138" alt="Thumbnail of image '.$num.'" /></a><div>'.$num.'</div></li>'; I see that I can call the text files by number using '.$num.' (I have 77 individual text files with a phrase in each) but how do I tell it to call the files?

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  • How to use Multiple Variables for a lock Scope in C#

    - by Gunner
    I have a situation where a block of code should be executed only if two locker objects are free. I was hoping there would be something like: lock(a,b) { // this scope is in critical region } However, there seems to be nothing like that. So does it mean the only way for doing this is: lock(a) { lock(b) { // this scope is in critical region } } Will this even work as expected? Although the code compiles, but I am not sure whether it would achieve what I am expecting it to.

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  • SQL join from multiple tables

    - by Kenny Anderson
    Hi all We've got a system (MS SQL 2008 R2-based) that has a number of "input" database and a one "output" database. I'd like to write a query that will read from the output DB, and JOIN it to data in one of the source DB. However, the source table may be one or more individual tables :( The name of the source DB is included in the output DB; ideally, I'd like to do something like the following (pseudo-SQL ahoy) SELECT output.UID, output.description, input.data from output.dbo.description LEFT JOIN (SELECT input.UID, input.data FROM [output.sourcedb].dbo.datatable ) AS input ON input.UID=output.UID Is there any way to do something like the above - "dynamically" specify the database and table to be joined on for each row in the query?

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  • How to update SQL Server database from multiple data sources for ASP.Net MVC 4 application

    - by shaz
    I have 10+ SQL Server databases, from where I would use one table from each database to display information using the application that I am creating. For instance, DB1, DB2....DB10. NewDB (Account, Country, Costcenter....etc.). I have started with creating a new database which would contain all the information from all those 10+ databases. However, I am confused in many cases. First of all what process should I follow? Shall I create a table (in new database) with the same structure as the actual data source and insert data from actual data source to new database? Should I be doing this on the DBMS? If so, is it some scripting? (hint expected since very new to this) I am creating a report generation application which has 10+ data sources. I need some hint which way should I proceed? Thanks for advice/help in advance.

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  • Multiple Layout Managers in Java

    - by ranzy
    Is there way to use more than 1 layout manager in Java. Right now I'm using a gridLayout to implement a chess board but beneath it I would like to put some other stuff but not in a gridLayout. Maybe a FlowLayout or some other layout. How would I go about doing this? Thanks!

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  • NSXMLParser with multiple attributes

    - by mitb67
    Hi. I have the following XML (doing an app for iPhone): <Row> <Field name="employee_id_disp">00070431</Field> <Field name="given_name">John</Field> <Field name="family_name">Doe</Field> </Row> ... How can I retrieve values only for one of the attributes, for example value "John" for attribute name="given_name" ? Thanks for answers.

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  • Query for Joining Two Tables With Possible Multiple Mapping

    - by Dharmendra Mohapatra
    First_table srno wono Actual_Start_Date Actual_End_Date 1 31 2012-06-02 2012-06-05 2 32 2012-06-05 2012-06-22 3 33 2012-06-11 2012-06-23 4 34 2012-06-23 2012-06-30 5 A-2 2012-06-24 2012-06-25 6 BU 2012-06-24 2012-06-26 7 40 2012-06-25 2012-06-27 second_table srno wono Base_start_date Base_end_date uploadhistoryid 1 31 2012-06-05 2012-06-05 1 2 32 2012-06-11 2012-06-12 2 3 32 2012-06-15 2012-06-17 3 4 32 2012-06-18 2012-06-20 4 5 33 2012-06-22 2012-06-25 5 5 33 2012-06-23 2012-06-25 5 Result Required SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[Reports_Subanalysis] ( @WONo VARCHAR(20) ) AS BEGIN SELECT 'SAT' AS stage, s.Base_start_date AS start_date, s.Base_end_date AS end_date, f.Actual_Start_Date AS Actual_Start_Date, f.Actual_end_Date AS Actual_End_Date FROM First_table f, second_table B WHERE A.wOno=B.nOno AND f.uploadhistoryid in (SELECT min(uploadhistoryid) FROM second_table C WHERE f.wono = C.wono) AND b.wono=@WONo END when I pass '32' Result stage start_date end_date Actual_Start_Date Actual_End_Date SAT 2012-06-11 2012-06-12 2012-06-05 2012-06-05 how Can I get the result like this when I pass non matching value like 'BU' stage start_date end_date Actual_Start_Date Actual_End_Date SAT NULL NULL 2012-06-24 2012-06-26 What modification do I need in my routine?

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  • CSS - vertical align text where text can be multiple lines

    - by Sniffer
    Hi all I've been given a design by a graphic designer, which I'm trying to put into HTML and CSS. One of the issues I'm facing is on a user input form. In the design the labels for each input are a fixed width - say 100px. The container for each label/input pair is fixed at 2em. The design I've been given has asked that the text for each label is vertically aligned. So the structure is like this: <containerTag> <label /> <input /> </containerTag> No problems as long as the text is on one line (I would have just used line-height of 2em to match the container), but some of the text in the labels are wrapping to two or even lines. Is there a semantic and nice way to get around this problem? I need something that will work in IE6-9, Firefox 3.5+, Chrome and Safari. Although I am using progressive enhancement, so if there is a solution that will only work on the later browsers, but won't break the older ones, then this would be acceptable. Any help gratefully received! Thanks for your time S

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  • COUNT issue across multiple tables

    - by Kim
    I am trying to count across 2 tables and I dont see whats wrong with my query yet I get a wrong result. User 2 does not exist in table_two, so the zero is correct. SELECT t1.creator_user_id, COUNT(t1.creator_user_id), COUNT(t2.user_id) FROM table_one AS t1 LEFT JOIN table_two AS t2 ON t2.user_id = t1.creator_user_id GROUP BY t1.creator_user_id, t2.user_id Actual result 1 192 192 2 9 0 Expected result 1 16 12 2 9 0 The result indicate a missing group by condition, but I already got both fields used. Where am I wrong ? Also, can I sum up all users that doesnt exist in table_two for t1 ? Like user 3 exists 21 times in t1, then the results would be: 1 16 12 (users with > 0 in t2 will need their own row) 2 30 0 (user 2=9 + user 3=21 => 30) Its okay for the user Id to be wrong for sum of t1 for all users with 0 in t2. If not possible, then I'll just do two queries.

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  • How to get multiple html() strings in jQuery

    - by Bryan
    I'm pretty new to jQuery... so far I'm impressed. But I encountered a situation today that is giving me trouble. I want to use .html() to get some raw text and use that in a selector, but that function only returns the first element. In the following structure, how can I get ALL of the "toggle_containerLG" divs to show when I click on the trigger "Some Header"? <h6 class="trigger active">Some Header</h6> <ul> <li><a href="#" class="trigger">Title One</a></li> <li><a href="#" class="trigger">Title Two</a></li> <li><a href="#" class="trigger">Title Three</a></li> </ul> <div class="toggle_containerLG" id='Title_One'></div> <!-- show these! --> <div class="toggle_containerLG" id='Title_Two'></div> <div class="toggle_containerLG" id='Title_Three'></div> <div class="toggle_containerLG" id='Title_Four'></div> <!-- not this one! --> I can't use $(".toggle_containerLG") because there are others I don't want to expand... I just want the ones listed under "Some Header". Seems like there should be an easy way to do it... and I'm just missing it because I don't know jQuery very well.

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  • Validating XML with multiple XSDs in Java

    - by Arian
    Hello! I want to parse an XML file with Java and validate it in the same step against an XSD schema. An XML file may contain content of several schemas, like this: <outer xmlns="my.outer.namespace" xmlns:x="my.third.namespace"> <foo>hello</foo> <inner xmlns="my.inner.namespace"> <bar x:id="bar">world</bar> </inner> </outer> Given a namespace the corresponding xsd file can be provided, but the used namespaces are unknown before parsing. If a schema defines default values for attributes, I also want to know that somehow. I was able to validate a file if the schemas are known, I was able to parse a file without validation and I implemented a LSResourceResolver. However, I can't get all of it working together. How do I have to set up my (SAX) parser?

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  • plotting multiple google maps to page

    - by Roland
    I'm trying to append more than one Google Map to a page. But it seems like I'm having some trouble. This would be the template I'm using to ( with Handlebars.js ) to create the same block more than once, about 50 times : <script type="text/x-handlebars-template"> {{#each productListing}} <div class="product-listing-wrapper"> <div class="product-listing"> <div class="left-side-content"> <div class="thumb-wrapper" data-image-link="{{ThumbnailUrl}}"> <i class="thumb"> <img src="{{ThumbnailUrl}}" alt="Thumb"> <span class="zoom-image"></span> </i> </div> <div class="google-maps-wrapper"> <div class="google-coordonates-wrapper"> <div class="google-coordonates"> <p>{{LatLon.Lat}}</p> <p>{{LatLon.Lon}}</p> </div> </div> <div class="google-maps-button"> <a class="google-maps" href="#">Google Maps</a> </div> </div> </div> <div class="right-side-content"> <div class="map-canvas-wrapper"> <div id="map-canvas" class="map-canvas" data-latitude="{{LatLon.Lat}}" data-longitude="{{LatLon.Lon}}"></div> </div> <div class="content-wrapper"></div> </div> </div> </div> {{/each}} And I'm trying to append the map to the #map-canvas id. With the following block of code I'm doing the plotting : Cluster.prototype.initiate_map_assembling = function() { return $(this.map_canvas_wrapper_class).each(function(index, element) { var canvas = $(element).children(); var latitude = $(canvas).attr('data-latitude'); var longitude = $(canvas).attr('data-longitude'); var coordinates = new google.maps.LatLng(latitude, longitude); var options = { zoom: 9, center: coordinates, mapTypeId: google.maps.MapTypeId.ROADMAP }; var map = new google.maps.Map($(canvas), options); var marker = new google.maps.Marker({ position: coordinates, map: map }); }); }; This way I'm "looping" through all the parent classes of the id I'm trying to append the map to, but the map would only append to the first id. I tried to append it to all of the id's in other ways but with the same results. So what would you suggest me to do to make it work as I would expect it, append the map to each of the id's ?

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  • Huge page buffer vs. multiple simultaneous processes

    - by Andrei K.
    One of our customer has a 35 Gb database with average active connections count about 70-80. Some tables in database have more than 10M records per table. Now they have bought new server: 4 * 6 Core = 24 Cores CPU, 48 Gb RAM, 2 RAID controllers 256 Mb cache, with 8 SAS 15K HDD on each. 64bit OS. I'm wondering, what would be a fastest configuration: 1) FB 2.5 SuperServer with huge buffer 8192 * 3500000 pages = 29 Gb or 2) FB 2.5 Classic with small buffer of 1000 pages. Maybe some one has tested such case before and will save me days of work :) Thanks in advance.

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  • Using a singleton database class in functions and multiple scripts(PHP) - best use methods

    - by dscher
    I have a singleton db connection which I get with: $dbConnect = myDatabase::getInstance(); which is easy enough. My question is what is the least rhetorical and legitimate way of using this connection in functions and classes? It seems silly to have to declare the variable global, pass it into every single function, and/or recreate this variable within every function. Is there another answer for this? Obviously I'm a noob and I can work my way around this problem 10 different ways, none of which is really attractive to me. It would be a lot easier if I could have that $dbConnect variable accessible in any function without needing to declare it global or pass it in. I do know I can add the variable to the $_SERVER array...is there something wrong with doing this? It seems somewhat inappropriate to me. Another quick question: Is it bad practice to do this: $result = myDatabase::getInstance()-query($query); from directly within a function?

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  • Multiple asserts in single test?

    - by Gern Blandston
    Let's say I want to write a function that validates an email address with a regex. I write a little test to check my function and write the actual function. Make it pass. However, I can come up with a bunch of different ways to test the same function ([email protected]; [email protected]; test.test.com, etc). Do I put all the incantations that I need to check in the same, single test with several ASSERTS or do I write a new test for every single thing I can think of? Thanks!

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  • Update multiple progress bar with gtk c++

    - by Yadira Suazo
    I need to output the i progress bars and update them all. But only the last one updates i times. This is the code: static void calculaPi (GtkButton * boton, Datos * dDatos){ const char * threads; GtkWidget * barra, *bot2, *button, *progress, *vbox; threads = gtk_entry_get_text(GTK_ENTRY(dDatos->dthreads )); gint ithreads = 1; ithreads = atoi(threads); barra = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_title((GtkWindow *) barra, "Loteria de Threads"); gtk_window_set_default_size(GTK_WINDOW(barra), 300, ithreads*30); gtk_window_set_position(GTK_WINDOW(barra), GTK_WIN_POS_CENTER); button = gtk_button_new_with_label ("Click me!"); vbox = gtk_vbox_new (FALSE, 5); gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 5); gtk_container_add (GTK_CONTAINER (barra), vbox); for (gint i = 1 ; i <= ithreads; i++) { progress = gtk_progress_bar_new (); gtk_box_pack_start (GTK_BOX (vbox), progress, FALSE, FALSE, 5); g_object_set_data (G_OBJECT (barra), "pbar", (gpointer) progress); g_signal_connect (G_OBJECT (button), "clicked", G_CALLBACK (button_clicked), (gpointer) barra); } bot2 = gtk_button_new_with_label("Salir"); gtk_box_pack_start (GTK_BOX (vbox), bot2, FALSE, FALSE, 5); gtk_widget_set_size_request(bot2, 100, 35); g_signal_connect (G_OBJECT (bot2), "clicked", G_CALLBACK (destroy), G_OBJECT (barra)); gtk_widget_show_all(barra); gtk_main(); } static void button_clicked (GtkButton *button, GtkWidget *barra) { GtkProgressBar *progress; gdouble percent = 0.0; gtk_widget_set_sensitive (GTK_WIDGET (button), FALSE); progress = GTK_PROGRESS_BAR (g_object_get_data (G_OBJECT (barra), "pbar")); while (percent <= 100.0) { gchar *message = g_strdup_printf ("%.0f%% Complete", percent); gtk_progress_bar_set_fraction (progress, percent / 100.0); gtk_progress_bar_set_text (progress, message); while (gtk_events_pending ()) gtk_main_iteration (); g_usleep (500000); percent += 5.0; } }

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