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  • HTML form isn't emailing

    - by Anonmattymous
    I have this as my form <div class="contactInputs"> <p>Send us a message</p> <form class="messageForm" autocomplete="on" name="contactform" method="post" action="/freequote.php"> <input type="text" name="name" placeholder="Name*" required> <input type="text" name="companyname" placeholder="Company Name"> <input type="email" name="email" placeholder="Email*" required> <input type="tel" name="phone" placeholder="Phone"> <input class="contact-submit" type="submit"> </form> <textarea type="textarea" name="message" placeholder="Your Messages*" required></textarea> </div> And this is the PHP used to do send the Email. <?php if(isset($_POST['email'])) { $email_to = "[email protected]"; $email_subject = "Your email subject line"; function died($error) { echo "We are very sorry, but there were error(s) found with the form you submitted. "; echo "These errors appear below.<br /><br />"; echo $error."<br /><br />"; echo "Please go back and fix these errors.<br /><br />"; die(); } if(!isset($_POST['name']) || !isset($_POST['companyname']) || !isset($_POST['email']) || !isset($_POST['phone']) || !isset($_POST['comments'])) { died('We are sorry, but there appears to be a problem with the form you submitted.'); } $name = $_POST['name']; $companyname = $_POST['companyname']; $email_from = $_POST['email']; $phone = $_POST['phone']; $message = $_POST['comments']; $error_message = ""; $email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/'; if(!preg_match($email_exp,$email_from)) { $error_message .= 'The Email Address you entered does not appear to be valid.<br />'; } $string_exp = "/^[A-Za-z .'-]+$/"; if(!preg_match($string_exp,$name)) { $error_message .= 'The First Name you entered does not appear to be valid.<br />'; } if(!preg_match($string_exp,$companyname)) { $error_message .= 'The Last Name you entered does not appear to be valid.<br />'; } if(strlen($message) < 2) { $error_message .= 'The Comments you entered do not appear to be valid.<br />'; } if(strlen($error_message) > 0) { died($error_message); } $email_message = "Form details below.\n\n"; function clean_string($string) { $bad = array("content-type","bcc:","to:","cc:","href"); return str_replace($bad,"",$string); } $email_message .= "First Name: ".clean_string($name)."\n"; $email_message .= "Last Name: ".clean_string($companyname)."\n"; $email_message .= "Email: ".clean_string($email_from)."\n"; $email_message .= "phone: ".clean_string($phone)."\n"; $email_message .= "Comments: ".clean_string($message)."\n"; $headers = 'From: '.$email_from."\r\n". 'Reply-To: '.$email_from."\r\n" . 'X-Mailer: PHP/' . phpversion(); @mail($email_to, $email_subject, $email_message, $headers); ?> Thank you for contacting us. We will be in touch with you very soon. <?php } ?> But whenever i try to submit it, i get the errors We are very sorry, but there were error(s) found with the form you submitted. These errors appear below. We are sorry, but there appears to be a problem with the form you submitted. Please go back and fix these errors. Does anyone see whats wrong

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  • RetinaJS and LESS : Background image doesn't show on iOS

    - by jidma
    I am trying to make a background image into a retina image using LESS CSS and RetinaJs: in my index.html file : <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=0, minimum-scale=1.0, maximum-scale=1.0"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> [...] <link type="text/css" rel="stylesheet/less" href="resources/css/retina.less"> <script type="text/javascript" src="resources/js/less-1.3.0.minjs" ></script> [...] </head> <body> [...] <script type="text/javascript" src="resources/js/retina.js"></script> </body> </html> in my retina.less file: .at2x(@path, @w: auto, @h: auto) { background-image: url("@{path}"); @at2x_path: ~`"@{path}".split('.').slice(0, "@{path}".split('.').length - 1).join(".") + "@2x" + "." + "@{path}".split('.')["@{path}".split('.').length - 1]`; @media all and (-webkit-min-device-pixel-ratio : 1.5) { background-image: url("@{at2x_path}"); background-size: @w @h; } } .topMenu { .at2x('../../resources/img/topMenuTitle.png'); } I have both topMenuTitle.png (320px x 40px) and [email protected] (640px x 80px) in the same folder. When test this code: In Firefox i have the normal Background In the XCode iPhone simulator I also have the normal Background In the iPhone device, I don't have any background at all. I'm using GWT if that matters. Any suggestions ? Thanks.

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  • Update database every 30 minutes once

    - by Ravi
    Hi, I am working on C#.Net Windows application with SQL Server 2005. This project i am using ADO.Net Data-service for database maintenance. I am working on industrial automation domain, here data keep on reading more than 8 hours. After reading data from device based on the trigger i have periodically update data to database. for example start reading data on 9.00AM, trigger firing on 9.50AM. Once trigger fire, last 30 minutes(9.20 AM to 9.50AM) data store into data base. After trigger firing keep on reading data from device and store into data base. 10.00AM trigger going to off at time storing data to database has to be stop. Again trigger firing on 11.00AM. Once trigger fire, last 30 minutes(10.30 AM to 11.00AM) data store into data base. After trigger firing keep on reading data from device and store into data base. After 10.00AM trigger not firing means data keep on store locally. Here i don't know until trigger fire keep on reading data where & how to maintain temporarily , After trigger firing, last 30 minutes data how to bring and store into database. I don't know how to achieve it. It would be great if anyone could suggest any idea. Thanks

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  • receiving data from serialport stops when main form is minimized or moved

    - by Rahul
    Sir, I apologize if this is already covered somewhere. I did a search and find something which I have already implemented. I am developing an application which receives data from a device connected via serialport. I am using SerialPort datareceived event to capture data. I am to display data in text boxes of the main form. Data is received frequently. I used Timer to send command to the device, in response device send some data. Timer interval is 100 ms. In every 100 ms interval some command is sent and correspondingly data is received. I used Invoke function to update the GUI elements like TExtbox, labels etc. Everything is fine. All the elements are updating beautifully. But during receiving data if I make any change in main form like moving form, minimizing, maximizing, or clicking somewhere in the form, then data receiving stops. I couldnot find the reason why its happening ? I also changed the timer interval to 200,300,400,500 but same problem is there. Please tell me why its happening? And possible solution... Thanks In advance.... :)

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  • php form doesnt submit one of the fields

    - by steve
    i have bought a template that have built in contact form problem is that it submits every thing except "company" name i have spent few hours messing around with it but cant get to work it. if you can point me to some solution i would be greatful thanks in advance this is contact form <form action="php/contact.php" method="post" id="contactform"> <ol> <li> <label for="name">your name <span class="red">*</span></label> <input id="name" name="name" class="text" /> </li> <li> <label for="email">Your email <span class="red">*</span></label> <input id="email" name="email" class="text" /> </li> <li> <label for="company">Company Name</label> <input id="company" name="company" class="text" /> </li> <li> <label for="subject">Subject</label> <input id="subject" name="subject" class="text" /> </li> <li> <label for="message">Message <span class="red">*</span></label> <textarea id="message" name="message" rows="6" cols="50"></textarea> </li> <li class="buttons"> <input type="image" name="imageField" id="imageField" src="images/button.jpg" /> </li> </ol> </form> this is java script <script type="text/javascript"> // <![CDATA[ jQuery(document).ready(function(){ $('#contactform').submit(function(){ var action = $(this).attr('action'); $.post(action, { name: $('#name').val(), email: $('#email').val(), company: $('#company').val(), subject: $('#subject').val(), message: $('#message').val() }, function(data){ $('#contactform #submit').attr('disabled',''); $('.response').remove(); $('#contactform').before('<p class="response">'+data+'</p>'); $('.response').slideDown(); if(data=='Thanks for your message, will contact you soon.') $('#contactform').slideUp(); } ); return false; }); }); // ]]> </script> this is php script if(!$_POST) exit; $email = $_POST['email']; //$error[] = preg_match('/\b[A-Z0-9._%-]+@[A-Z0-9.-]+.[A-Z]{2,4}\b/i', $POST['email']) ? '' : 'INVALID EMAIL ADDRESS'; if(!eregi("^[a-z0-9]+([\.-][a-z0-9]+)" ."@"."([a-z0-9]+([.-][a-z0-9]+))+"."\.[a-z]{2,}"."$",$email )){ $error.="Invalid email address entered"; $errors=1; } if($errors==1) echo $error; else{ $values = array ('name','email','message'); $required = array('name','email','message'); $your_email = "[email protected]"; $email_subject = "New Message: ".$_POST['subject']; $email_content = "new message:\n"; foreach($values as $key => $value){ if(in_array($value,$required)){ if ($key != 'subject' && $key != 'company') { if( empty($_POST[$value]) ) { echo 'Please fill in all required fields, marked with *'; exit; } } $email_content .= $value.': '.$_POST[$value]."\n"; } } if(@mail($your_email,$email_subject,$email_content)) { echo 'Thanks for your message, will contact you soon.'; } else { echo 'ERROR!'; } }

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  • Need to write at beginning of file with PHP

    - by Timothy
    I'm making this program and I'm trying to find out how to write data to the beginning of a file rather than the end. "a"/append only writes to the end, how can I make it write to the beginning? Because "r+" does it but overwrites the previous data. $datab = fopen('database.txt', "r+"); Here is my whole file: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title>Facebook v0.1</title> <style type="text/css"> #bod{ margin:0 auto; width:800px; border:solid 2px black; } </style> </head> <body> <div id="bod"> <?php $fname = $_REQUEST['fname']; $lname = $_REQUEST['lname']; $comment = $_REQUEST['comment']; $datab = $_REQUEST['datab']; $gfile = $_REQUEST['gfile']; print <<<form <table border="2" style="margin:0 auto;"> <td> <form method="post" action=""> First Name : <input type ="text" name="fname" value=""> <br> Last Name : <input type ="text" name="lname" value=""> <br> Comment : <input type ="text" name="comment" value=""> <br> <input type ="submit" value="Submit"> </form> </td> </table> form; if((!empty($fname)) && (!empty($lname)) && (!empty($comment))){ $form = <<<come <table border='2' width='300px' style="margin:0 auto;"> <tr> <td> <span style="color:blue; font-weight:bold;"> $fname $lname : </span> $comment </td> </tr> </table> come; $datab = fopen('database.txt', "r+"); fputs($datab, $form); fclose($datab); }else if((empty($fname)) && (empty($lname)) && (empty($comment))){ print" please input data"; } // end table $datab = fopen('database.txt', "r"); while (!feof($datab)){ $gfile = fgets($datab); print "$gfile"; }// end of while ?> </div> </body> </html>

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  • Logging in "Java Library Code" libs for Android applications

    - by K. Claszen
    I follow the advice to implement Android device (not application!) independent library code for my Android Apps in a seperate "Java Library Code" project. This makes testing easier for me as I can use the standard maven project layout, Spring test support and Continuous Build systems the way I am used to. I do not want to mix this inside my Android App project although this might be possible. I now wonder how to implement logging in this library. As this library will be used on the Android device I would like to go with android.util.Log. I added the followind dependency to my project to get the missing Android packages/classes and dependencies: <dependency> <groupId>com.google.android</groupId> <artifactId>android</artifactId> <version>2.2.1</version> <scope>provided</scope> </dependency> But this library just contains stub method (similar to the android.jar inside the android-sdk), thus using android.util.Log results in java.lang.RuntimeException: Stub! when running my unit tests. How do I implement logging which works on the Android device but does not fail outside (I do not expect it to work, but it must not fail)? Thanks for any advice Klaus For now I am going with the workaround to catch the exception outside android but hope there is a better solution. try { Log.d("me", "hello"); } catch (RuntimeException re) { // ignore failure outside android }

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  • Rewarding iOS app beta testers with in app purchase?

    - by Partridge
    My iOS app is going to be free, but with additional functionality enabled via in app purchase. Currently beta testers are doing a great job finding bugs and I want to reward them for their hard work. I think the least I can do is give them a full version of the app so that they don't have to buy the functionality themselves. However, I'm not sure what the best way to do this is. There do not appear to be promo codes for in app purchase so I can't just email out promo codes. I have all the tester device UDIDs so when the app launches I could grab the device UDID and compare it to an internal list of 'approved' UDIDs. Is this what other developers do? My concerns: The in app purchase content would not be tied to their iTunes account, so if beta testers move to a new device they would not be able to enable the content unless I released a new build in the app store with their new UDID. So they may have to buy it eventually anyway. Having an internal list leaves a hole for hackers to modify the list and add themselves to it. What would you do?

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  • How to access a web service behind a NAT?

    - by jr
    We have a product we are deploying to some small businesses. It is basically a RESTful API over SSL using Tomcat. This is installed on the server in the small business and is accessed via an iPhone or other device portable device. So, the devices connecting to the server could come from any number of IP addresses. The problem comes with the installation. When we install this service, it seems to always become a problem when doing port forwarding so the outside world can gain access to tomcat. It seems most time the owner doesn't know router password, etc, etc. I am trying to research other ways we can accomplish this. I've come up with the following and would like to hear other thoughts on the topic. Setup a SSH tunnel from each client office to a central server. Basically the remote devices would connect to that central server on a port and that traffic would be tunneled back to Tomcat in the office. Seems kind of redundant to have SSH and then SSL, but really no other way to accomplish it since end-to-end I need SSL (from device to office). Not sure of performance implications here, but I know it would work. Would need to monitor the tunnel and bring it back up if it goes done, would need to handle SSH key exchanges, etc. Setup uPNP to try and configure the hole for me. Would likely work most of the time, but uPNP isn't guaranteed to be turned on. May be a good next step. Come up with some type of NAT transversal scheme. I'm just not familiar with these and uncertain of how they exactly work. We have access to a centralized server which is required for the authentication if that makes it any easier. What else should I be looking at to get this accomplished?

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  • Manually changing keyboard orientation for a view that's on top of a camera view

    - by XKR
    I'm basically trying to reproduce the core functionality of the "At Once" app. I have a camera view and another view with a text view on it. I add both views to the window. All is well so far. [window addSubview:imagePicker.view]; [window addSubview:textViewController.view]; I understand that the UIImagePickerController does not support autorotation, so I handle it manually by watching UIDeviceOrientationDidChangeNotifications and applying the necessary transforms to the textViewController.view. Now, the problem here is the keyboard. If I do nothing, it just stays in portrait mode. I can get it to rotate by adding the following code to the notification handler. [[UIApplication sharedApplication] setStatusBarOrientation:interfaceOrientation]; [textView resignFirstResponder]; [textView becomeFirstResponder]; However, the following simple test produces weird behavior. Start the app in portrait mode. Rotate the device 90 degrees clockwise. Rotate the device 90 degrees counterclockwise (back to the initial position). Rotate the device 90 degrees clockwise. After step 4, instead of the landscape-mode keyboard, the portrait-style keyboard is shown, skewed to fit in the landscape keyboard frame. Perhaps my approach is wrong from the start. I was wondering if anyone has been able to reliably make the keyboard change its orientation in response to setStatusBarOrientation.

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  • Embedded CSS Media Queries Not Working

    - by Greg
    I am new to CSS media queries, and I was first trying to get pdf/mp3/mp4 buttons to get centered on this page whenever a mobile device is using it (http://www.mannachurch.org/portfolio-type/recycled-junk/). Keep in mind for that I am using a highly modified wordpress theme. So I tried experimenting to isolate this issue. However, I don't seem to have any control over using media queries and I can't even perform anything even on this simple HTML file: <!DOCTYPE html> <html> <head> <title>Title of the document</title> <style type="text/css"> body{background-color: blue;} @media only screen and (min-device-width : 599px) and (max-device-width : 600px) { body {background-color:black; } } </style> </head> <body> <p>This is an experiment<p/> </body> </html> What am I doing wrong?

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  • Output a php multi-dimensional array to a html table

    - by Fireflight
    I have been banging my head against the wall with this one for nearly a week now, and am no closer than I was the first day. I have a form that has 8 columns and a variable number of rows which I need to email to the client in a nicely formatted email. The form submits the needed fields as a multidimensional array. Rough example is below: <input name="order[0][topdiameter]" type="text" id="topdiameter0" value="1" size="5" /> <input name="order[0][bottomdiameter]" type="text" id="bottomdiameter0" value="1" size="5" /> <input name="order[0][slantheight]" type="text" id="slantheight0" value="1" size="5" /> <select name="order[0][fittertype]" id="fittertype0"> <option value="harp">Harp</option> <option value="euro">Euro</option> <option value="bulbclip">Regular</option> </select> <input name="order[0][washerdrop]" type="text" id="washerdrop0" value="1" size="5" /> <select name="order[0][fabrictype]" id="fabrictype"> <option value="linen">Linen</option> <option value="pleated">Pleated</option> </select> <select name="order[0][colours]" id="colours0"> <option value="beige">Beige</option> <option value="white">White</option> <option value="eggshell">Eggshell</option> <option value="parchment">Parchment</option> </select> <input name="order[0][quantity]" type="text" id="quantity0" value="1" size="5" /> This form is formatted in a table, and rows can be added to it dynamically. What I've been unable to do is get a properly formatted table out of the array. This is what I'm using now (grabbed from the net). <?php if (isset($_POST["submit"])) { $arr= $_POST['order'] echo '<table>'; foreach($arr as $arrs) { echo '<tr>'; foreach($arrs as $item) { echo "<td>$item</td>"; } echo '</tr>'; } echo '</table>; }; ?> This works perfectly for a single row of data. If I try submitting 2 or more rows from the form then one of the columns disappears. I'd like the table to be formatted as: | top | Bottom | Slant | Fitter | Washer | Fabric | Colours | Quantity | ------------------------------------------------------------------------ |value| value | value | value | value | value | value | value | with additional rows as needed. But, I can't find any examples that will generate that type of table! It seems like this should be something fairly straightforward, but I just can't locate an example that works the way I need it too.

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  • How to implement a log window in a web browser?

    - by Jeremy Friesner
    Hi all, I'm interested in adding an HTML/web-browser based "log window" to my net-enabled device. Specifically, my device has a customized web server and an event log, and I'd like to be able to leave a web browser window open to e.g. http://my.devices.ip.address/system_log and have events show up as text in the web browser window as they happen. People could then use this as a quick way to monitor what the system is doing, without needing run any special software. My question is, what is the best way to implement this? I've tried the obvious approach -- just have my device's embedded web server hold the HTTP/TCP connection open indefinitely, and write the necessary text to the TCP socket when an event occurs -- but the problem with that is that most web browsers (e.g. Safari) don't display the web page until the server has closed the TCP connection has been closed, and so the result is that the log data never appears in the web browser, it just acts as if the page is taking forever to load. Is there some trick to make this work? I could implement it as a Java applet, but I'd much prefer something more lightweight/simple, either using only HTML or possibly HTML+JavaScript. Also I'd like to avoid having the web browser 'poll' the server, since that would either introduce too much latency (if the reload delay was large) or put load on the system (if the delay was small)

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  • Form submit in javascript

    - by zac
    Hi been wrestling this form and the last step (actually submitting) has me scratching my head. What I have so far is the form: <form id="theForm" method='post' name="emailForm"> <table border="0" cellspacing="2"> <td>Email <span class="red">*</span></td><td><input type='text'class="validate[required,custom[email]]" size="30"></td></tr> <td>First Name:</td><td><input type='text' name='email[first]' id='first_name' size=30></td></tr> <tr height="30"> <td cellpadding="4">Last Name:</td><td><input type='text' name='email[last]' id='e_last_name' size=30> <td>Birthday</td> <td><select name='month' style='width:70px; margin-right: 10px'> <option value=''>Month</option> <option value="1">Jan</option> <option value="2">Feb</option> .... </select><select name='day' style='width:55px; margin-right: 10px'> <option value=''>Day</option> <option value="1">1</option> <option value="2">2</option> ... <option value="31">31</option> </select><select name='year' style='width:60px;' > <option value=''>Year</option> <option value="2007">2007</option> <option value="2006">2006</option> <option value="2005">2005</option> ... </select> <input type='image' src='{{skin url=""}}images/email/signUpButt.gif' value='Submit' onClick="return checkAge()" /> <input type="hidden" id= "under13" name="under13" value="No"> and a script that checks the age and sets a cookie/changes display function checkAge() { var min_age = 13; var year = parseInt(document.forms["emailForm"]["year"].value); var month = parseInt(document.forms["emailForm"]["month"].value) - 1; var day = parseInt(document.forms["emailForm"]["day"].value); var theirDate = new Date((year + min_age), month, day); var today = new Date; if ( (today.getTime() - theirDate.getTime()) < 0) { var el = document.getElementById('emailBox'); if(el){ el.className += el.className ? ' youngOne' : 'youngOne'; } document.getElementById('emailBox').innerHTML = "<style type=\"text/css\">.formError {display:none}</style><p>Good Bye</p><p>You must be 13 years of age to sign up.</p>"; createCookie('age','not13',0) return false; } else { createCookie('age','over13',0) return true; }} that all seems to be working well.. just missing kind of a crucial step of actually submitting the form if it validates (if they pass the age question). So I am thinking that this will be wrapped in that script.. something in here : else { createCookie('age','over13',0) return true; } Can someone please help me figure out how I could handle this submit?

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  • Should a C++ constructor do real work?

    - by Wade Williams
    I'm strugging with some advice I have in the back of my mind but for which I can't remember the reasoning. I seem to remember at some point reading some advice (can't remember the source) that C++ constructors should not do real work. Rather, they should initialize variables only. The advice when on to explain that real work should be done in some sort of init() method, to be called separately after the instance was created. The situation is I have a class that represents a hardware device. It makes logical sense to me for the constructor to call the routines that query the device in order to build up the instance variables that describe the device. In other words, once new instantiates the object, the developer receives an object which is ready to be used, no separate call to object-init() required. Is there a good reason why constructors shouldn't do real work? Obviously it could slow allocation time, but that wouldn't be any different if calling a separate method immediately after allocation. Just trying to figure out what gotchas I not currently considering that might have lead to such advice.

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  • is there something equivalent to 'Address of' or offset operator in .net?

    - by Gio
    We have nested stuctures as such, used as an interface for some device drivers. On occasion we have to update individual elements. An 'address of' operator would be helpful, but an 'offset' function or operator is what I'm really looking for, but not sure how to go about it. In other words, how far is structureN.elementX away from the start of the structure in bytes? [StructLayout(LayoutKind.Sequential)] public struct s1 { UInt16 elem1; UInt16 elem2; UInt16 elem3; } [StructLayout(LayoutKind.Sequential)] public struct s2 { UInt16 elem1; UInt16 elem2; UInt16 elem3; } [StructLayout(LayoutKind.Sequential)] public struct driver { public S1 s1; public S2 s2; } For instance we need to send the device driver some data to update driver.s1.elem3, by way of providing an offset address, data block and length. We would update our local copy, then call the device api with the afore mentioned data. Not sure I have to do this with 'unsafe' method calls. Any help?

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  • Android Service setForeground While Display Sleeps

    - by c12
    I have a background Android Service that's purpose is to communicate with another device (non-phone) using a Bluetooth socket. Everything works fine except that the service gets stopped and restarted by the OS when the phone display is sleeping. This restart sometimes leaves a 15-20 minute gaps where there is no communication between the Service and the Bluetooth device and I need to be able to query the device every minute. Is startForeground the proper approach? Attempted to use: startForeground(int, Notification) //still see gaps when phone sleeps Service: public class ForegroundBluetoothService extends Service{ private boolean isStarted = false; @Override public void onDestroy() { super.onDestroy(); stop(); } /** * @see android.app.Service#onBind(android.content.Intent) */ @Override public IBinder onBind(Intent intent) { return null; } /** * @see android.app.Service#onStartCommand(android.content.Intent, int, int) */ @Override public int onStartCommand(Intent intent, int flags, int startId) { loadServiceInForeground(); return(START_STICKY); } private void loadServiceInForeground() { if (!isStarted) { isStarted=true; Notification notification = new Notification(R.drawable.icon, "Service is Running...", System.currentTimeMillis()); Intent notificationIntent = new Intent(this, MainScreen.class); PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0); notification.setLatestEventInfo(this, "Notification Title", "Service is Running...", pendingIntent); startForeground(12345, notification); try{ queryTheBluetoothDevice(); } catch(Exception ex){ ex.printStackTrace(); } } } private void stop() { if (isStarted) { isStarted=false; stopForeground(true); } } }

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  • JNA Passing Structure By Reference Help

    - by tyeh26
    Hi all, I'm trying to use JNA to talk over a USB device plugged into the computer. Using Java and a .dll that was provided to me. I am having trouble with the Write function: C code: typedef struct { unsigned int id; unsigned int timestamp; unsigned char flags; unsigned char len; unsigned char data[16]; } CANMsg; CAN_STATUS canplus_Write( CANHANDLE handle, //long CANMsg *msg ); Java Equivalent: public class CANMsg extends Structure{ public int id = 0; public int timestamp = 0; public byte flags = 0; public byte len = 8; public byte data[] = new byte[16]; } int canplus_Write(NativeLong handle, CANMsg msg); I have confirmed that I can open and close the device. The close requires the NativeLong handle, so i am assuming that the CANMsg msg is the issue here. I have also confirmed that the device works when tested with C only code. I have read the the JNA documentation thoroughly... I think. Any pointers. Thanks all.

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  • How can I hit my database with an AJAX call using javascript?

    - by tmedge
    I am pretty new at this stuff, so bear with me. I am using ASP.NET MVC. I have created an overlay to cover the page when someone clicks a button corresponding to a certain database entry. Because of this, ALL of my code for this functionality is in a .js file contained within my project. What I need to do is pull the info corresponding to my entry from the database itself using an AJAX call, and place that into my textboxes. Then, after the end-user has made the desired changes, I need to update that entry's values to match the input. I've been surfing the web for a while, and have failed to find an example that fits my needs effectively. Here is my code in my javascript file thus far: function editOverlay(picId) { //pull up an overlay $('body').append('<div class="overlay" />'); var $overlayClass = $('.overlay'); $overlayClass.append('<div class="dataModal" />'); var $data = $('.dataModal'); overlaySetup($overlayClass, $data); //set up form $data.append('<h1>Edit Picture</h1><br /><br />'); $data.append('Picture name: &nbsp;'); $data.append('<input class="picName" /> <br /><br /><br />'); $data.append('Relative url: &nbsp;'); $data.append('<input class="picRelURL" /> <br /><br /><br />'); $data.append('Description: &nbsp;'); $data.append('<textarea class="picDescription" /> <br /><br /><br />'); var $nameBox = $('.picName'); var $urlBox = $('.picRelURL'); var $descBox = $('.picDescription'); var pic = null; //this is where I need to pull the actual object from the db //var imgList = for (var temp in imgList) { if (temp.Id == picId) { pic= temp; } } /* $nameBox.attr('value', pic.Name); $urlBox.attr('value', pic.RelativeURL); $descBox.attr('value', pic.Description); */ //close buttons $data.append('<input type="button" value="Save Changes" class="saveButton" />'); $data.append('<input type="button" value="Cancel" class="cancelButton" />'); $('.saveButton').click(function() { /* pic.Name = $nameBox.attr('value'); pic.RelativeURL = $urlBox.attr('value'); pic.Description = $descBox.attr('value'); */ //make a call to my Save() method in my repository CloseOverlay(); }); $('.cancelButton').click(function() { CloseOverlay(); }); } The stuff I have commented out is what I need to accomplish and/or is not available until prior issues are resolved. Any and all advice is appreciated! Remember, I am VERY new to this stuff (two weeks, to be exact) and will probably need highly explicit instructions. BTW: overlaySetup() and CloseOverlay() are functions I have living someplace else. Thanks!

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  • How to avoid mouse move on Touch

    - by VirtualBlackFox
    I have a WPF application that is capable of being used both with a mouse and using Touch. I disable all windows "enhancements" to just have touch events : Stylus.IsPressAndHoldEnabled="False" Stylus.IsTapFeedbackEnabled="False" Stylus.IsTouchFeedbackEnabled="False" Stylus.IsFlicksEnabled="False" The result is that a click behave like I want except on two points : The small "touch" cursor (little white star) appears where clicked an when dragging. Completely useless as the user finger is already at this location no feedback is required (Except my element potentially changing color if actionable). Elements stay in the "Hover" state after the movement / Click ends. Both are the consequences of the fact that while windows transmit correctly touch events, he still move the mouse to the last main-touch-event. I don't want windows to move the mouse at all when I use touch inside my application. Is there a way to completely avoid that? Notes: Handling touch events change nothing to this. Using SetCursorPos to move the mouse away make the cursor blink and isn't really user-friendly. Disabling the touch panel to act as an input device completely disable all events (And I also prefer an application-local solution, not system wide). I don't care if the solution involve COM/PInvoke or is provided in C/C++ i'll translate. If it is necessary to patch/hook some windows dlls so be it, the software will run on a dedicated device anyway. I'm investigating the surface SDK but I doubt that it'll show any solution. As a surface is a pure-touch device there is no risk of bad interaction with the mouse.

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  • How to detect a Socket disconnection?

    - by AngryHacker
    I've implemented a task using the async Sockets pattern in Silverlight 3. I started with Michael Schwarz's implementation and built on top of that. So basically, my Silverlight app establishes a persistent socket connection to a device and then data flows both ways as necessary between the device and the Silverlight app. One thing I am struggling with is how to detect disconnection. I could think of 2 approaches: Keep-Alive. I know this can be done at the Sockets level, but I am not sure how to do this in an async model. How would the Socket class let me know there has been a disconnection. Manual keep alive. Basically, I am having the Silverlight app send a dummy packet every 20 seconds or so. If it fails, I'd assume disconnection. However, incredibly, SocketAsyncEventArgs.SocketError always reports success, even if I simply unplug the device that the Silverlight app is connected to. I am not sure whether this is a bug or what or perhaps I need to upgrade to SL4. Any ideas, direction or implementation would be appreciated.

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  • HTML5 on iPhone Safari - data stored by localStorage does not always persist. Why?

    - by Aerodyne
    Hi, I write a simple iPhone web app using HTML5's localStorage. Tests on a 2G device show that data stored using localStorage does not persist after the Safari process is killed although the opened Safari windows are remembered. The data is also lost in a case where I am on a different site on a different Safari window, then I change the window to where the web app in subject is shown. When Safari loads the page it automatically refreshes the page. Then the data is lost. This is a simple test code: <html> <head> <meta name="viewport" content="height=device-height, width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" /> </head> <body> <script> alert("1:" + localStorage.getItem("test")); localStorage.setItem("test", "123"); alert("2:" + localStorage.getItem("test")); </script> </body> As far as I understand the data should persist! Can anyone shed some light on this behavior? What should I do to get the persistence to work? Thanks! Tom.

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  • PC boot: dl register and drive number

    - by kikou
    I read somewhere in the internet that, before jumping to 0x7c00, the BIOS loads into %dl the "drive number" of the booted device. But what is this "drive number"? Each device attached to the computer is assigned a number by the BIOS? If so, how can I know which number is a given device assigned to? Reading GRUB's source code I found when %dl has bits 0x80 and 0x70 set, it overwrites the whole register with 0x80. Why is that? Here is the code: jmp 3f /* grub-setup may overwrite this jump */ testb $0x80, %dl jz 2f 3: /* Ignore %dl different from 0-0x0f and 0x80-0x8f. */ testb $0x70, %dl jz 1f 2: movb $0x80, %dl 1: By the way. Is there any detailed resource on the boot process of PC's in the web? Specially about what the BIOS does before giving the control to the bootloader and also the standard codes used to communicate with it (like that "drive numer"). I was hoping to write my own bootloader and everything I found is a bit too vague, not technical enough to the point of informing of the exact state of the computer when my bootloader starts to run.

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  • Why my onsubmitg is not firing - Spring

    - by GigaPr
    Hi, i have a controller public class EditUserController extends BaseController { public EditUserController() { setCommandClass(User.class); setCommandName("editaUser"); } public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { ModelAndView modelAndView = new ModelAndView("editUser"); String id = request.getParameter("id"); if(!id.isEmpty()) { User user = this.userServiceImplementation.get(Integer.parseInt(id)); modelAndView.addObject("editaUser", user); } return modelAndView; } } and the view <form:form method="POST" commandName="editaUser" cssClass="addUserForm"> <div class="floatL"> <div class="padding5"> <div class="fieldContainer"> <strong>First Name:</strong>&nbsp; </div> <form:errors path="firstName" cssClass="error"/> <form:input path="firstName" cssClass="textArea" /> </div> <div class="padding5"> <div class="fieldContainer"> <strong>Last Name:</strong>&nbsp; </div> <form:errors path="lastName" cssClass="error"/> <form:input path="lastName" cssClass="textArea" /> </div> </div> <div class="floatR"> <div class="padding5"> <div class="fieldContainer"> <strong>Username:</strong>&nbsp; </div> <form:errors path="username" cssClass="error"/> <form:input path="username" cssClass="textArea" /> </div> <div class="padding5"> <div class="fieldContainer"> <strong>Password</strong>&nbsp; </div> <form:errors path="password" cssClass="error"/> <form:input path="password" cssClass="textArea"/> </div> </div> <input type="submit" class="floatR" value="Save" > </form:form> and the bean definition looks like <bean name="/editUser.htm" class="com.rssFeed.mvc.EditUserController"> <property name="userServiceImplementation" ref="userServiceImplementation"/> <property name="commandName" value="editaUser" /> <property name="successView" value="users"/> <property name="sessionForm" value="true"/> </bean> I populate the view using the querystring but i would lke to update the record in the database on click of the submit button. i tried to insert a on submit method protected ModelAndView onSubmit(Object command, BindException bindException) throws Exception { return new ModelAndView(getSuccessView()); } but it never fires What is the problem i do not get it?? thanks

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  • InputVerifier don't display each component icon(lable)

    - by Sajjad
    I have a form that set a input verifier to it. I want when a user type a correct value for a text field and want to go to other text field, a check icon should be display besides of text field. But now in my code, when user type a correct value on first text field an go to other, Two icons displayed together! public class UserDialog extends JDialog { JButton cancelBtn, okBtn; JTextField fNameTf, lNameTf; JRadioButton maleRb, femaleRb; ButtonGroup group; JLabel fNameLbl, fNamePicLbl, lNameLbl, lNamePicLbl, genderLbl, tempBtn, temp3; public UserDialog() { add(createForm(), BorderLayout.CENTER); setDefaultCloseOperation(DISPOSE_ON_CLOSE); setLocation(400, 100); pack(); setVisible(true); } public JPanel createForm() { JPanel panel = new JPanel(); ImageIcon image = new ImageIcon("Check.png"); okBtn = new JButton("Ok"); cancelBtn = new JButton("Cancel"); tempBtn = new JLabel(); fNameLbl = new JLabel("First Name"); fNamePicLbl = new JLabel(image); fNamePicLbl.setVisible(false); lNameLbl = new JLabel("Last Name"); lNamePicLbl = new JLabel(image); lNamePicLbl.setVisible(false); genderLbl = new JLabel("Gender"); maleRb = new JRadioButton("Male"); femaleRb = new JRadioButton("Female"); temp3 = new JLabel(); group = new ButtonGroup(); group.add(maleRb); group.add(femaleRb); fNameTf = new JTextField(10); fNameTf.setName("FnTF"); fNameTf.setInputVerifier(new MyVerifier(new JComponent[]{maleRb, femaleRb, okBtn})); lNameTf = new JTextField(10); lNameTf.setName("LnTF"); lNameTf.setInputVerifier(new MyVerifier(new JComponent[]{maleRb, femaleRb, okBtn})); panel.add(fNameLbl); panel.add(fNameTf); panel.add(fNamePicLbl); panel.add(lNameLbl); panel.add(lNameTf); panel.add(lNamePicLbl); panel.add(genderLbl); JPanel radioPanel = new JPanel(new FlowLayout(FlowLayout.LEFT)); radioPanel.add(maleRb); radioPanel.add(femaleRb); panel.add(radioPanel); panel.add(temp3); panel.add(okBtn); panel.add(cancelBtn); panel.add(tempBtn); panel.setLayout(new SpringLayout()); SpringUtilities.makeCompactGrid(panel, 4, 3, 50, 10, 80, 60); return panel; } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { @Override public void run() { new UserDialog(); } }); } public class MyVerifier extends InputVerifier { private JComponent[] component; public MyVerifier(JComponent[] components) { component = components; } @Override public boolean verify(JComponent input) { String name = input.getName(); if (name.equals("FnTF")) { String text = ((JTextField) input).getText().trim(); if (text.matches(".*\\d.*") || text.length() == 0) { //disable dependent components for (JComponent r : component) { r.setEnabled(false); } return false; } } else if (name.equals("LnTF")) { String text = ((JTextField) input).getText(); if (text.matches(".*\\d.*") || text.length() == 0) { //disable dependent components for (JComponent r : component) { r.setEnabled(false); } return false; } } //enable dependent components for (JComponent r : component) { r.setEnabled(true); } fNamePicLbl.setVisible(true); lNamePicLbl.setVisible(true); return true; } } } }

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