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  • Help with MySQL database structure - user notification system

    - by Simon
    Hi, I'd like to send global notifications to my users (1000+ users) and allow them to close the notification box once they have read the message. Basically I may send one notification per week globally ie/ each user get the same message and they are not personal in nature. What is the best way to achieve this? Create 2 tables: **tb_messages** message_id massage_title message_content **tb_read_messages** user_id message_id is-read That way i can just show each user the current notifications that are not read? select * from tb_read_messages WHERE user_id = $user_id AND is-read = no OR is there a more efficient way? Thanks!!!

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  • How to listen to that property?

    - by mystify
    @constant kAudioSessionProperty_AudioInputAvailable A UInt32 with a value other than zero when audio input is available. Use this property, rather than the device model, to determine if audio input is available. A listener will notify you when audio input becomes available. For instance, when a headset is attached to the second generation iPod Touch, audio input becomes available via the wired microphone. So, if I wanted to get notified about kAudioSessionProperty_AudioInputAvailable, how would I do that?

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  • Java serial comm notifyOnDataAvailable configure receive buffer size?

    - by fred basset
    Hi All, I have a Java serial driver that's using the notifyOnDataAvailable mode to enable async. receive notification. I see an occasional problem where the SerialPortEvent.DATA_AVAILABLE serial event is not called until a relatively large no. of characters have been received (e.g. 34). The problem is that the sender sent a 20 byte packet, so the Java receiver did not send an ACK until the sender did a retry of the 20 byte send. Is there any way in Java COMM to configure the size of the receive buffer?

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  • Confused about technique to use to submit form

    - by user281180
    I have created a view in which i`m using clientsidevalidation. The jquery has a textbox , a table and a submit button. The table is empty at the beginning. Using jquery I populate the table with 2 columns ID and Name. I send the values to the controller using the submit button. My question are as follows: How do I send the values of the texbox and the table to the controller? Any guide please.

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  • How can I forcibly close a TcpListener

    - by Nissim
    I have a service which communicates through tcpListener. Problem is when the user restarts the service - an "Address already in use" exception is thrown, and the service cannot be started for a couple of minutes or so. Is there's any way of telling the system to terminate the old connection so I can open a new one? (I can't just use random ports because there is no way for the service to notify the clients what is the port, so we must depend on a predefined port)

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  • APNS Sending Frequent Notifications to Device

    - by user564447
    I'm trying to mimic a pager with my app by sending push notifications to the user until he or she responds. My thought was to send a push every few seconds and play the default sound on arrival. Not perfect, but better than nothing. It's working all right. However, I am finding that the sound starts to stutter/interrupt a bit after a few notifications have been sent -- as if it's trying to play the sound more than once. This happens even if I only send the push every 10 seconds. I just tested it at 20 second intervals and even then it starts to sound interrupted after about 10 times. Any idea how to resolve this so each message plays the sound crisply? p.s. Testing performed on an iPad.

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  • Picture changing in vb6

    - by Dario Dias
    I was trying this script from a pdf file.I got stuck where the target image should change to exploding image if clicked but the target image does not change from the standing image.Please Help! Option Explicit Dim fiPlayersScore As Integer Dim fiNumberofMisses As Integer Dim fbTargetHit As Boolean Private Sub Form_Load() Randomize imgTarget.Enabled = False imgTarget.Visible = False cmdStop.Enabled = False lblGameOver.Visible = False lblGameOver.Enabled = False End Sub Private Sub cmdStart_Click() Dim lsUserResponse As String Dim lbResponse As Boolean lsUserResponse = InputBox("Enter a level from 1 to 3." & _ (Chr(13)) & "" & (Chr(13)) & "1 being the Easiest and 3 being the " & _ "Hardest.", "Level Select", "1") lbResponse = False If lsUserResponse = "1" Then Timer1.Interval = 1500 lbResponse = True ElseIf lsUserResponse = "2" Then Timer1.Interval = 1000 lbResponse = True ElseIf lsUserResponse = "3" Then Timer1.Interval = 750 lbResponse = True Else MsgBox ("Game Not Started.") lbResponse = False End If If lbResponse = True Then cmdStart.Enabled = False imgTarget.Picture = imgStanding.Picture frmMain.MousePointer = 5 fbTargetHit = False Load_Sounds cmdStop.Enabled = True fiPlayersScore = 0 fiNumberofMisses = 0 lblScore.Caption = fiPlayersScore lblMisses.Caption = fiNumberofMisses Timer1.Enabled = True lblGameOver.Visible = False lblGameOver.Enabled = False End If End Sub Private Sub cmdStop_Click() Unload_Sounds frmMain.MousePointer = vbNormal Timer1.Enabled = False imgTarget.Enabled = False imgTarget.Visible = False cmdStart.Enabled = True cmdStop.Enabled = False cmdStart.SetFocus lblGameOver.Visible = True lblGameOver.Enabled = True End Sub Private Sub Form_Click() MMControl1.Command = "Play" MMControl1.Command = "Prev" fiNumberofMisses = fiNumberofMisses + 1 lblMisses.Caption = fiNumberofMisses If CheckForLoose = True Then cmdStop_Click lblMisses.Caption = fiNumberofMisses Exit Sub End If End Sub Private Sub imgTarget_Click() MMControl2.Command = "Play" MMControl2.Command = "Prev" Timer1.Enabled = False imgTarget.Picture = imgExplode.Picture '**I AM STUCK HERE** pauseProgram fiPlayersScore = fiPlayersScore + 1 Timer1.Enabled = True If CheckForWin = True Then cmdStop_Click lblScore.Caption = fiPlayersScore Exit Sub End If lblScore.Caption = fiPlayersScore fbTargetHit = True imgStanding.Enabled = False imgTarget.Visible = False imgTarget.Enabled = False Timer1.Enabled = True End Sub Public Sub Load_Sounds() 'Set initial property values for blaster sound MMControl1.Notify = False MMControl1.Wait = True MMControl1.Shareable = False MMControl1.DeviceType = "WaveAudio" MMControl1.FileName = _ "C:\Temp\Sounds\Blaster_1.wav" 'Open the media device MMControl1.Command = "Open" 'Set initial property values for grunt sound MMControl2.Notify = False MMControl2.Wait = True MMControl2.Shareable = False MMControl2.DeviceType = "WaveAudio" MMControl2.FileName = _ "C:\Temp\Sounds\Pain_Grunt_4.wav" 'Open the media device MMControl2.Command = "Open" End Sub Private Sub Timer1_Timer() Dim liRandomLeft As Integer Dim liRandomTop As Integer imgTarget.Visible = True If fbTargetHit = True Then fbTargetHit = False 'imgTarget.Picture = imgStanding.Picture End If liRandomLeft = (6120 * Rnd) liRandomTop = (4680 * Rnd) imgTarget.Left = liRandomLeft imgTarget.Top = liRandomTop imgTarget.Enabled = True imgTarget.Visible = True End Sub Public Function CheckForWin() As Boolean CheckForWin = False If fiPlayersScore = 5 Then CheckForWin = True lblGameOver.Caption = "You Win.Game Over" End If End Function Public Function CheckForLoose() As Boolean CheckForLoose = False If fiNumberofMisses = 5 Then CheckForLoose = True lblGameOver.Caption = "You Loose.Game Over" End If End Function Private Sub Form_QueryUnload(Cancel As Integer, _ UnloadMode As Integer) Unload_Sounds End Sub Public Sub Unload_Sounds() MMControl1.Command = "Close" MMControl2.Command = "Close" End Sub Public Sub pauseProgram() Dim currentTime Dim newTime currentTime = Second(Time) newTime = Second(Time) Do Until Abs(newTime - currentTime) = 1 newTime = Second(Time) Loop End Sub

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  • Is it possible to get RSA private key knowing public key and set of "original data=>encrypted data"

    - by Riz
    Hi, I work on apllication which allows plugins to access different set of functionality, every plugin provides "initialization string" which sets level of access to different features. Developers send me this strings, and I encrypt them using my 1024 bit RSA private key and send encoded data back. When started, my application decodes encoded data(encoded initialisation string) using built-in public key and if "decoded data != initialization string" it fails to start. So, is it possible to use a database of "initialization string" = "encoded initialization string"(extracted from other plugins) to crack my private key, or make it possible to bruteforce it in reasonable time?

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  • How can you pass GET values to another url in php? GET value forwarding

    - by gobackpacking
    Ok, so I'm using Jquery's AJAX function and it's having trouble passing a URL with a http address. So I'm hoping to "get" the GET values and send them to another URL — so: a local php file begin passed GET values, which in turn forwards the GET values to another url. Maybe curl is the answer? I don't know. It's got to be a very short answer I know. pseudo code: //retrieve the GET values $var retrieve [GET] //passing it to another url send get values to url ($var, url_address)

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  • Can't add email signature in Android

    - by user1680411
    I'm trying to compose and send an email which will include a signature at the bottom of my email content in android. I'm able to send an email but I'm not getting the way that allows me to add my own signature. Do you have any suggestion? here's my code: public void addListener() { final Button button = (Button) findViewById(R.id.button1); button.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { findViewById = (TextView) findViewById(R.id.t1); Intent i = new Intent(Intent.ACTION_SEND); i.setType("text/plain"); i.putExtra(Intent.EXTRA_EMAIL, new String[] { "[email protected]"}); /*i.putExtra(Intent.EXTRA_CC, new String[] { "[email protected]" });*/ i.putExtra(Intent.EXTRA_SUBJECT, "Android Test"); i.putExtra(Intent.EXTRA_TEXT, "Body"); //i.putExtra(Intent.EXTRA_TEXT, "signature"); try { startActivity(Intent.createChooser(i, "Choose mail app...")); } catch (android.content.ActivityNotFoundException ex) { } } }); }

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  • application is crashing while user exits from fullscreen mode in mpmovieplayer

    - by ravoorinandan
    hi folks we do have a video file in our application,every thing is going fine except one,i.e the application crashes when user exits from fullscreen mode while the movie is playing and also when we pause the movie in fullscreen mode and minimize it,the video starts from the beginning i tried searching whether there is any notification available to notify but of no use plz help me out.thx in advance.

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  • What is the best way to expose a callback API - C++

    - by rursw1
    Hi, I have a C++ library that should expose some system\ resource calls as callbacks from the linked application. For example: the interfacing application (which uses this library) can send socket management callback functions - send, receive, open, close etc., and the library will use this implementation in stead of the library's implementation. (This way enables the application to manage the sockets by itself, can be useful). This library has to expose also more callbacks, like, for example, a password validation, so I wonder if there is a preferred method to expose the callback sending option in one API. Something like: int AddCallbackFunc (int functionCallbackType, <generic function prototype>, <generic way to pass some additional arguments>) Then within my library I will assign the callback to the appropriate function pointer according to the functionCallbackType parameter. Is there any way to implement it in a generic way which will fit ANY function prototype and ANY additional arguments? Your help will be more than appreciated... Thanks!

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  • Sending tweets using Android

    - by Saranya.R
    I want to send a tweet from Android.I have executed the following code.But I am not bale to send any tweets.Avtually the button I created is not working.Can anybody tel me wats the prob? This is my code.. package samplecode.sampleapp.sampletwidgitpublicintent; import android.app.Activity; import android.content.ActivityNotFoundException; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.os.Bundle; public class TwidgitPublicIntent extends Activity implements OnClickListener { private static final int TWIDGIT_REQUEST_CODE = 2564; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ((Button)findViewById(R.id.tweet_button)).setOnClickListener(this); ((Button)findViewById(R.id.mention_button)).setOnClickListener(this); ((Button)findViewById(R.id.retweet_button)).setOnClickListener(this); ((Button)findViewById(R.id.message_button)).setOnClickListener(this); } public void onClick(View v) { switch(v.getId()) { case R.id.tweet_button: // Standard tweet Intent tIntent = new Intent("com.disretrospect.twidgit.TWEET"); tIntent.putExtra("com.disretrospect.twidgit.extras.MESSAGE", "_message_in_here_"); try { this.startActivityForResult(tIntent, TWIDGIT_REQUEST_CODE); } catch (ActivityNotFoundException e) { // If Twidgit is not installed } break; case R.id.mention_button: // Mention Intent mIntent = new Intent("com.disretrospect.twidgit.MENTION"); mIntent.putExtra("com.disretrospect.twidgit.extras.TO", "_username_to_xmention_"); mIntent.putExtra("com.disretrospect.twidgit.extras.MESSAGE", "_message_in_here_"); try { this.startActivityForResult(mIntent, TWIDGIT_REQUEST_CODE); } catch (ActivityNotFoundException e) { // If Twidgit is not installed } break; case R.id.retweet_button: // Retweet a tweet Intent rtIntent = new Intent("com.disretrospect.twidgit.RETWEET"); rtIntent.putExtra("com.disretrospect.twidgit.extras.MESSAGE", "_message_in_here_"); rtIntent.putExtra("com.disretrospect.twidgit.extras.VIA", "_original_author_of_tweet_name_"); try { this.startActivityForResult(rtIntent, TWIDGIT_REQUEST_CODE); } catch (ActivityNotFoundException e) { // If Twidgit is not installed } break; case R.id.message_button: // Send DM Intent dmIntent = new Intent("com.disretrospect.twidgit.DIRECT_MESSAGE"); dmIntent.putExtra("com.disretrospect.twidgit.extras.TO", "_username_to_send_dm_to_"); dmIntent.putExtra("com.disretrospect.twidgit.extras.MESSAGE", "_message_in_here_"); try { this.startActivityForResult(dmIntent, TWIDGIT_REQUEST_CODE); } catch (ActivityNotFoundException e) { // If Twidgit is not installed } break; } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); // Check result code if(resultCode == Activity.RESULT_OK) { // Check requestCode switch(requestCode) { case TWIDGIT_REQUEST_CODE: // Handle successful return break; } } else if(resultCode == Activity.RESULT_CANCELED){ // Handle canceled activity } } }

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  • To delay javascript function call using jquery

    - by Mohan Ram
    CODES: $().ready(function(){ function sample() { alert("This is sample function"); } $("#button").click(function(){ t=setTimeout("sample()",2000); }); }); HTML: <input type="button" name="button" id="button" value="Call sample function with delay"> Once i click button sample function is not called with a delay of 2 seconds. I dont know whats wrong. Please notify me how to do this Question: To call javascript function using setTimeout via jquery

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  • Windows Forms Unhandled-Exception Dialog

    - by Michael
    I want to get Default Windows Forms Unhandled-Exception Dialog whenever my C# application encounters U-E. In vs 2005 when I turn off jit Debugging in app.conf like this: <configuration> <system.windows.forms jitDebugging="false" /> <configuration> the application behaves correctly and shows Windows Forms U-E default dialog, with Continue, Quit, call stack and all. However in vs 2008, on the same machine or different, even though I diable jit I still get Default .NET Unhandled-Exception Dialog, with Debug, Send Report and Don't Send buttons. How can I make my vs 2008 app act like the one I make in vs 2005, to show Windows Forms U-E dialog box? Please do not recommend to use AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(CurrentDomain_UnhandledException); just because I don't use custom handler in my vs 2005 project, why would I use in vs 2008? I want to let this job do CLR. Any help is appreciated

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  • Changing window procedure for console window

    - by Anonymous
    I want to make console window with a functional tray icon. I figured out that most probably it is necessary to replace initial console's window procedure so I will be able to control all messages including notify area events. But SetWindowLong function returns 0, and GetLastError() tells that access is denied. hwndFound = GetConsoleWindow(); SetWindowLong(hwndFound, GWL_WNDPROC, (long)WndProc); What could it be, or maybe there is some other way to control tray icon manipulations?

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  • PHP Sessions Error

    - by Andrei Korchagin
    I'm new to PHP sessions and I've come across the following error: Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at somefile:someline). As well as this one: Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent by (output started at somefile:someline). The session_start(); is the very first thing in all of my code. I'm not sure what the problem is. It gave me line numbers but all I do on those lines is start the session. Also - I have a portion of code whose POST action is another PHP page. How can I set a $_SESSION variable pertaining to this page within that action page?

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  • kmeans based on mapreduce by python

    - by user3616059
    I am going to write a mapper and reducer for the kmeans algorithm, I think the best course of action to do is putting the distance calculator in mapper and sending to reducer with the cluster id as key and coordinates of row as value. In reducer, updating the centroids would be performed. I am writing this by python. As you know, I have to use Hadoop streaming to transfer data between STDIN and STOUT. according to my knowledge, when we print (key + "\t"+value), it will be sent to reducer. Reducer will receive data and it calculates the new centroids but when we print new centroids, I think it does not send them to mapper to calculate new clusters and it just send it to STDOUT and as you know, kmeans is a iterative program. So, my questions is whether Hadoop streaming suffers of doing iterative programs and we should employ MRJOB for iterative programs?

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  • How can I obtain the IPv4 address of the client?

    - by Dr Dork
    Hello! I'm prepping for a simple work project and am trying to familiarize myself with the basics of socket programming in a Unix dev environment. At this point, I have some basic server side code setup to listen for incoming TCP connection requests from clients after the parent socket has been created and is set to listen... int sockfd, newfd; unsigned int len; socklen_t sin_size; char msg[]="Test message sent"; char buf[MAXLEN]; int st, rv; struct addrinfo hints, *serverinfo, *p; struct sockaddr_storage client; char ip[INET6_ADDRSTRLEN]; . . //parent socket creation and listen code omitted for simplicity . //wait for connection requests from clients while(1) { //Returns the socketID and address of client connecting to socket if( ( newfd = accept(sockfd, (struct sockaddr *)&client, &len) ) == -1 ){ perror("Accept"); exit(-1); } if( (rv = recv(newfd, buf, MAXLEN-1, 0 )) == -1) { perror("Recv"); exit(-1); } struct sockaddr_in *clientAddr = ( struct sockaddr_in *) get_in_addr((struct sockaddr *)&client); inet_ntop(client.ss_family, clientAddr, ip, sizeof ip); printf("Receive from %s: query type is %s\n", ip, buf); if( ( st = send(newfd, msg, strlen(msg), 0)) == -1 ) { perror("Send"); exit(-1); } //ntohs is used to avoid big-endian and little endian compatibility issues printf("Send %d byte to port %d\n", ntohs(clientAddr->sin_port) ); close(newfd); } } I found the get_in_addr function online and placed it at the top of my code and use it to obtain the IP address of the client connecting... // get sockaddr, IPv4 or IPv6: void *get_in_addr(struct sockaddr *sa) { if (sa->sa_family == AF_INET) { return &(((struct sockaddr_in*)sa)->sin_addr); } return &(((struct sockaddr_in6*)sa)->sin6_addr); } but the function always returns the IPv6 IP address since thats what the sa_family property is set as. My question is, is the IPv4 IP address stored anywhere in the data I'm using and, if so, how can I access it? Thanks so much in advance for all your help!

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