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• Threading process in asp.net

  - by Zerotoinfinite

  Hi All, I am using asp.net 3.5 and C#. I have a blog site and I want that whenever user enter any comment, the suscriber related to that post will get the notification. So what I am doing that I am sending mail at the same time as the comment is inserted into the table, which sometimes take time because of the quantity of user. Is their any way that user enter the comment into the database and the send mail function will run asynchornysly which will not interfear user to go ahead with his task. please let me know how to acheieve it in a simplier way. Thanks in advance

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• How to capture a screen shot in .NET from a webapplication?

  - by CodeToGlory

  In Java we can do it as follows: import java.awt.Dimension; import java.awt.Rectangle; import java.awt.Robot; import java.awt.Toolkit; import java.awt.image.BufferedImage; import javax.imageio.ImageIO; import java.io.File; ... public void captureScreen(String fileName) throws Exception { Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); Rectangle screenRectangle = new Rectangle(screenSize); Robot robot = new Robot(); BufferedImage image = robot.createScreenCapture(screenRectangle); ImageIO.write(image, "png", new File(fileName)); } ... How do we do this in .NET from a webapplication? Capturing the client's screen and sending it to the server all from within the application.

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• SMS Receiving using DOTNET C#

  - by sheery

  Hi dears, I have build an application using C# to send and receive sms, my application works fine for sending sms but when i try to read sms from my mobile through my application i get following error "Error: Phone reports generic communication error or syntax error." can any one help me in this matter, my syntax for reading sms is private void btnReadMessages_Click(object sender, System.EventArgs e) { Cursor.Current = Cursors.WaitCursor; string storage = GetMessageStorage(); try { // Read all SMS messages from the storage DecodedShortMessage[] messages = comm.ReadMessages(PhoneMessageStatus.All, storage); foreach(DecodedShortMessage message in messages) { Output(string.Format("Message status = {0}, Location = {1}/{2}", StatusToString(message.Status), message.Storage, message.Index)); ShowMessage(message.Data); Output(""); } Output(string.Format("{0,9} messages read.", messages.Length.ToString())); Output(""); } catch(Exception ex) { ShowException(ex); } Cursor.Current = Cursors.Default; }

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• (php) how to properly 'save' info in forms completed thus far

  - by hatorade

  So i have a form that on paper is 40 pages long. I was going to take the natural sections of this form, and make separate html forms for each section, with the idea that on the first page there would be a first form, then you hit 'Continue to next section' which essentially is the 'submit' button, which moves the user to section two, etc, until they hit the last section. i am not actually storing the results of the form in a database, but rather sending an email. the idea then is to store the separate form answers (one html form per section in the real form) as arrays or objects in the session, so that if they go back to a section in the form, it repopulates the values they entered since they are stored in the session. the result would be an array in the session storing the results for each of my forms, and i have one form for each section. my question is: is it secure to temporarily store things like SSNs or driver's license numbers as session variables? why or why not?

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• Cocoa multiple threads, locks don't work

  - by Igor

  I have a threadMethod which shows in console robotMotorsStatus every 0.5 sec. But when I try to change robotMotorsStatus in changeRobotStatus method I receive an exception. Where I need to put locks in that program. #import "AppController.h" @implementation AppController extern char *robotMotorsStatus; - (IBAction)runThread:(id)sender { [self performSelectorInBackground:@selector(threadMethod) withObject:nil]; } - (void)threadMethod { char string_to_send[]="QFF001100\r"; //String prepared to the port sending (first inintialization) string_to_send[7] = robotMotorsStatus[0]; string_to_send[8] = robotMotorsStatus[1]; while(1){ [theLock lock]; usleep(500000); NSLog (@"Robot status %s", robotMotorsStatus); [theLock unlock]; } } - (IBAction)changeRobotStatus:(id)sender { robotMotorsStatus[0]='1'; }

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• Mail in the cloud? (web service for email)

  - by bambax

  I have multiple websites that need to send mail (after successful signup, etc.); I maintain a Postfix instance just for this (it never receives any incoming mail). This Postfix instance is a pain: it is sometimes broken, is regularly attacked, produces enormous amounts of logs, etc. These problems could certainly be dealt with by an experienced Postfix admin, but that's not me. Is there a service that would be just like Twilio, but for email? IE: a web service for sending mail.

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• How do I submit a form using jquery (ajaxForm plugin) to an external site but not reload to a differ

  - by Scott

  Hi, I'm trying to create a form that sends the customer's name and email address to icontact (an email list application). All the values are correct for icontact and if I submit the form as usual, icontact responds that it added the email address. The success message loads in a new page from icontact's website. What I'd like to accomplish is that ajax would send the form and returns a success message within the current page, without sending the customer to a new page. Here is the test page: http://www.skhot.com/test/js-test/forms/index.php

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• logrotate compress files after the postrotate script

  - by Thomas

  I have an application generating a really heavy big log file every days (~800MB a day), thus I need to compress them but since the compression takes time, I want that logrotate compress the file after reloading/sending HUP signal to the application. /var/log/myapp.log { rotate 7 size 500M compress weekly postrotate /bin/kill -HUP `cat /var/run/myapp.pid 2>/dev/null` 2>/dev/null || true endscript } Is it already the case that the compression takes place after the postrotate (which would be counter-intuitive)? If not Can anyone tell me if it's possible to do that without an extra command script (an option or some trick)? Thanks Thomas

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• HTML 5 Canvas - Get pixel data for a path

  - by Mikey S.

  I wonder if is there any way I can get pixel data for the currently drawn path in the canvas tag. I can calculate the pixel data on my own when drawing simple shapes like square or a line, but things get messy with more complicated shapes like ellipse or even a simple circle. The reason i'm asking this is because I'm working on a web application which involves sending canvas pixels data to the server when I add a path to the canvas. The server needs to keep it's own copy of the entire canvas, and I really don't want to send the ENTIRE canvas image every single change, but only the delta for efficiency reasons... Thanks.

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• Emailing HTML from within an iPhone app is stopping at special characters

  - by user141146

  Hi, I have an iPhone app that will let users email some pre-determined text as HTML. I'm having a problem in that if the text contains special characters within the text (e.g., ampersand &, , <), the NSString variable that I use for sending the body of the email gets truncated at the special character. I'm not sure how to fix this (I tried using the method stringByAddingPercentEscapesUsingEncoding…but this hasn't fixed the problems). Thoughts on what I'm doing wrong / how to fix it? Here is sample code showing what I'm trying to do Thanks!!! - (void)send_an_email:(id)sender { NSString *subject_string = [NSString stringWithFormat:@"Summary of %@", commercial_name]; NSString *body_string = [NSString stringWithFormat:@"%@<br /><br />", [self.dl email_message]]; // email_message returns the body of text that should be shipped as html. If email_message contains special characters, the text truncates at the special character NSString *full_string = [NSString stringWithFormat:@"mailto:?to=&subject=%@&body=%@", [subject_string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding], [body_string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; [[UIApplication sharedApplication] openURL:[[NSURL alloc] initWithString:full_string]]; }

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• Detecting/Repairing NSConnection failure

  - by anthony

  I would like to use NSConnection/NSDistributedObject for interprocess communication. I would like the client to be able to handle the case where the server is only occasionally reachable. How can I determine if sending a message to the NSConnection will fail or has failed? Currently if my server (the process that has vended the remote object) dies, the client will crash if it sends a selector to the remote object. Ideally I'd like to have a wrapper for the remote object that can lazily instantiate (or reinstantiate) the connection, and return a default value in the case where the connection could not be instantiated, or the connection has failed. I don't really know the correct way to do this using objective c. Here's some pseudocode representing this logic: if myConnection is null: instantiate myConnection if MyConnection is null: return defaultValue try return [myConnection someMethod] catch myConnection = null return defaultValue

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• How to send/open email attachments from android app?

  - by CSharperWithJava

  I would like to somehow send a file from my app on one android device to my app on another device. This can be done any which way, and I'm open to suggestions if you can tell me how to send over network or something like that. Currently, I'm looking at sending the file as an email attachment, but I haven't found any good documentation on how to do it. I need two things to accomplish this, be able to send my file (stored on sd card or somewhere on device) as an attachment, and have my app recognized by android as the app to open an attachment with the file extention (.lst). Any thoughts? The files will all be fairly small xml text files if that makes a difference.

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• Removing trailing newline character from fgets() input

  - by sfactor

  i am trying to get some data from the user and send it to another function in gcc. the code is something like this. printf("Enter your Name: "); if(!(fgets(Name, sizeof Name, stdin) != NULL)) { fprintf(stderr, "Error reading Name.\n"); exit(1); } However, i find that it has an \n character in the end. so if i enter John it ends up sending John\n. so how do i remove that \n and send a proper string.

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• How to programmatically add mailbox alias on an Exchange 2007 server from C# web app?

  - by petstran

  As the subject says, I have a C# web application (.NET 3.5) that's communicating with an Exchange 2007 server. What I need help with is to programmatically (preferably from the web app itself) add a new mailbox alias to a certain mailbox and then before sending out the mail set the new alias as the reply-to address. I'm fairly new to scripting, but from what I've read so far, most people seem to be suggesting the Exchange Powershell to accomplish this. Any hints towards a third-part API that would solve this would be appreciated. I've looked at the EWS API but from what I've seen so far it doesn't look like that's what I'm looking for.

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• GAE and Socket Data

  - by Vinod

  I have a field device which keeps on sending data over to any designated port using sockets. I am planning to use GAE for server-side infrastructure. I read GAE does not support sockets. But i can configure the device to send the data over port 80. so we wrote a genericservlet to capture this data on GAE. But it is not obtaining any values from the client. any suggestions to fix this issue?

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• Connecting to Google app email servers in Python to send from an alias

  - by user575228

  I'm looking to send many emails via Python and would like to connect to Google's email servers to send it from my company email address (it's for work). I've got working code for sending the email through the old company email ([email protected]) which is our login, but can't figure out how to send it through the alias ([email protected]) we use frequently. Long story short, logging in with my regular Google Apps account won't do and I need to sign in with an alias (nickname) instead. Alternatively, I can sign with the regular account ([email protected]) but send via a different email ([email protected]). Working in python and pretty new to programming, but am a good listener! (It's like this question: Google Apps - Send email from a nickname but in Python).

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• Can you figure out the password hashing scheme?

  - by Adal

  I have two passwords and two resulting hashes. I can't figure out how the hash is derived from the password. I don't know if salting is used. I don't know if the password is hashed as a integer value or as a string (possibly Unicode). Password: 6770 Hash: c12114b91a3841c143bbeb121693e80b Password: 9591 Hash: 25238d578b6a61c2c54bfe55742984c1 The hash length seems to suggest MD5. Anybody has any ideas what I could try? Note: This is not for hacking purposes. I'm trying to access a service through an API instead of it's desktop client, and I can't figure out how to compute the password hash. Currently instead of using my real password I'm sending directly the hash.

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• Unsigned versus signed numbers as indexes

  - by simendsjo

  Whats the rationale for using signed numbers as indexes in .Net? In Python, you can index from the end of an array by sending negative numbers, but this is not the case in .Net. It's not easy for .Net to add such a feature later as it could break other code perhaps using special rules (yeah, a bad idea, but I guess it happens) on indexing. Not that I have ever have needed to index arrays over 2,147,483,647 in size, but I really cannot understand why they choose signed numbers. Can it be because it's more normal to use signed numbers in code?

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• jQuery Date Picker where text input is read only

  - by Rowan Parker

  Hi all, I want to use the Jquery datepicker. I've got it setup using an the alt field option. I'm displaying Y-M-D in the text field, but submitting Y-M-D. Everything works fine so far, sending the correct data, etc. However I want to stop the user from being able to manually type a date. I add originally set the INPUT field to disabled, which worked in every browser except IE. In IE it would popup the date picker but then not close after clicking a date. Does anyone know the best way to do this?

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• Create A Java Variable (String) of a specific size (MB's)

  - by Bernie Perez

  I am trying to benchmark some code. I am sending a String msg over sockets. I want to send 100KB, 2MB, and 10MB String variables. Is there an easy way to create a variable of these sizes? Currently I am doing this. private static String createDataSize(int msgSize) { String data = "a"; while(data.length() < (msgSize*1024)-6) { data += "a"; } return data; } But this takes a very long time. Is there a better way?

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• Validating a Postscript without trying to print it?

  - by Epaga

  Saving data to Postscript in my app results in a Postscript file which I can view without issues in GhostView, but when I try to print it, the printer isn't able to print it because it seems to be invalid. Is there a way to validate / find errors in Postscript files without actually sending it to a printer? Preferred would be some kind of Java API/library, but a program which does the same would be fine as well. Edit #1 : no I don't know why it's invalid, nor even necessarily if it's invalid, but would like to be able to validate it outside of ghostview, or figure out what's going on when it can't print. Answer : Well using the ps2ps trick I was able to see the output that Postscript does and there check the difference. The difference was that I am not allowed to have a decimal number for the width or height of images in the Postscript, but rather only integers. So I still didn't find a way to validate, but this way was good enough for my problem. Thanks.

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• SOCKET chat C# with private messaging

  - by Sergei

  I want to create SOCKET chat(server + clients) with private messaging. When client write smth to stream, he should notify server that it is private message for user X, how can i do this? Actually i can do smth like this: string command = "PRIV|" + txtMessage.Text; swSender.WriteLine(command); but i think it isn't good, for example if user wants send message like our "PRIV|" flag it will be errors public class TestChat { private StreamWriter swSender; private IPAddress ipAddr; private void InitializeandSend() { //ip from text box ipAddr = IPAddress.Parse(txtIp.Text); // Start a new TCP connections to the chat server tcpServer = new TcpClient(); tcpServer.Connect(ipAddr, 1986); //... //sending message from text box swSender.WriteLine(txtMessage.Text); swSender.Flush(); } }

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• Failing to send key presses to a running process in C#

  - by Waffles

  I'm using the following code to put the focus on a window (in this case, a notepad window), and sending some key presses to it everytime button 2 is clicked. However, when I press button 2, nothing happens. Can anyone tell my why my sendkeys command is failing? public partial class Form1 : Form { [DllImport("user32.dll")] static extern bool ShowWindow(IntPtr hWnd, int nCmdShow); private Process s; public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { this.s = new Process(); s.StartInfo.FileName = "notepad"; s.Start(); s.WaitForInputIdle(); } private void button2_Click(object sender, EventArgs e) { ShowWindow(s.MainWindowHandle, 1); SendKeys.SendWait("Hello"); } }

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• How to avoid piracy in iPhone apps by server side validation?

  - by prathumca

  As par my app requirement, there is a couple of scenarios that I need to handle. Scenario 1: To avoid piracy, I want to include some piece of code, whose job is sending both IMEI and Serial number of IPhone. Scenario 2: At server side, I've a database, which has a list of both IMEI and Serial No info. Here I wanna validate both IMEI and Serial numbers. If both are not matched then I can make sure that the app is pirated. Idea seems good. But I don't know how to handle these two scenarios in my app. Any help is greatly appreciated.

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• Socket programming and telnet with VB.net

  - by Mike

  I'm writing a GUI-based app in VB.net that talks to a LambdaMOO server via telnet, sends commands to display the object hierarchy, then parses the output and creates a visual representation of the object hierarchy. So my question is: is there some kind of "telnet client" class for .NET to simplify the sending and receiving of data, or do I have to write my own using the socket API? Does Mono have something like this? Barring an easy solution, does anyone have a good tutorial they can point to for telnet client programming in VB.net?

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