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  • .NET (C#) passing messages from a custom control to main application

    - by zer0c00l
    A custom windows form control named 'tweet' is in a dll. The custom control has couple of basic controls to display a tweet. I add this custom control to my main application. This custom control has a button named "retweet", when some user clicks this "retweet" button, i need to send some message to the main application. Unfortunately the this tweet control has no idea about this main application (both or in their own namespaces) How can i send messages from this custom control to the main application?

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  • Python unhash value

    - by blah01
    Hi all I am a newbie to the python. Can I unhash, or rather how can I unhash a value. I am using std hash() function. What I would like to do is to first hash a value send it somewhere and then unhash it as such: #process X hashedVal = hash(someVal) #send n receive in process Y someVal = unhash(hashedVal) #for example print it print someVal Thx in advance

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  • Using <input type=file /> with J2EE/MySQL Backend

    - by Mark Hazlett
    Hey everyone, I'm wondering how I can hook up an input type=file to send a picture back to a backend servlet that will eventually be stored in a MySQL database as a BLOB? In other words, how can I upload a picture using the input and send that back to the servlet to insert into the database as a BLOB type? Thanks

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  • C - How to use both aio_read() and aio_write().

    - by Slav
    I implement game server where I need to both read and write. So I accept incoming connection and start reading from it using aio_read() but when I need to send something, I stop reading using aio_cancel() and then use aio_write(). Within write's callback I resume reading. So, I do read all the time but when I need to send something - I pause reading. It works for ~20% of time - in other case call to aio_cancel() fails with "Operation now in progress" - and I cannot cancel it (even within permanent while cycle). So, my added write operation never happens. How to use these functions well? What did I missed? EDIT: Used under Linux 2.6.35. Ubuntu 10 - 32 bit. Example code: void handle_read(union sigval sigev_value) { /* handle data or disconnection */ } void handle_write(union sigval sigev_value) { /* free writing buffer memory */ } void start() { const int acceptorSocket = socket(AF_INET, SOCK_STREAM, 0); struct sockaddr_in addr; memset(&addr, 0, sizeof(struct sockaddr_in)); addr.sin_family = AF_INET; addr.sin_addr.s_addr = INADDR_ANY; addr.sin_port = htons(port); bind(acceptorSocket, (struct sockaddr*)&addr, sizeof(struct sockaddr_in)); listen(acceptorSocket, SOMAXCONN); struct sockaddr_in address; socklen_t addressLen = sizeof(struct sockaddr_in); for(;;) { const int incomingSocket = accept(acceptorSocket, (struct sockaddr*)&address, &addressLen); if(incomingSocket == -1) { /* handle error ... */} else { //say socket to append outcoming messages at writing: const int currentFlags = fcntl(incomingSocket, F_GETFL, 0); if(currentFlags < 0) { /* handle error ... */ } if(fcntl(incomingSocket, F_SETFL, currentFlags | O_APPEND) == -1) { /* handle another error ... */ } //start reading: struct aiocb* readingAiocb = new struct aiocb; memset(readingAiocb, 0, sizeof(struct aiocb)); readingAiocb->aio_nbytes = MY_SOME_BUFFER_SIZE; readingAiocb->aio_fildes = socketDesc; readingAiocb->aio_buf = mySomeReadBuffer; readingAiocb->aio_sigevent.sigev_notify = SIGEV_THREAD; readingAiocb->aio_sigevent.sigev_value.sival_ptr = (void*)mySomeData; readingAiocb->aio_sigevent.sigev_notify_function = handle_read; if(aio_read(readingAiocb) != 0) { /* handle error ... */ } } } } //called at any time from server side: send(void* data, const size_t dataLength) { //... some thread-safety precautions not needed here ... const int cancellingResult = aio_cancel(socketDesc, readingAiocb); if(cancellingResult != AIO_CANCELED) { //this one happens ~80% of the time - embracing previous call to permanent while cycle does not help: if(cancellingResult == AIO_NOTCANCELED) { puts(strerror(aio_return(readingAiocb))); // "Operation now in progress" /* don't know what to do... */ } } //otherwise it's okay to send: else { aio_write(...); } }

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  • How to use type: "POST" in jsonp ajax call

    - by MKS
    Hi Guy, I am using JQuery ajax jsonp. I have got below JQuery Code: $.ajax({ type:"GET", url: "Login.aspx", // Send the login info to this page data: str, dataType: "jsonp", timeout: 200000, jsonp:"skywardDetails", success: function(result) { // Show 'Submit' Button $('#loginButton').show(); // Hide Gif Spinning Rotator $('#ajaxloading').hide(); } }); The above code is working fine, I just want to send the request as "POST" instead of "GET", Please suggest how can I achieve this. Thanks

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  • android: test app on a real device

    - by Yang
    My client wants to dogfood my android app. They don't have eclipse and don't want to install it. It there a more convenient way to send my apk to them? Can I send it via email and let them open the attachment in mobile device? Will it start installing itself automatically?

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  • Error With Sending mail (kSKPSMTPPartMessageKey is nil)

    - by user1553381
    I'm trying to send mail in iPhone using "SKPSMTPMessage" and I added the libraries, In my class I added the following code: - (IBAction)sendMail:(id)sender { // if there are a connection if ([theConnection isEqualToString:@"true"]) { if ([fromEmail.text isEqualToString:@""] || [toEmail.text isEqualToString:@""]) { UIAlertView *warning = [[UIAlertView alloc] initWithTitle:@"?????" message:@"?? ??? ????? ???? ????????" delegate:self cancelButtonTitle:@"?????" otherButtonTitles:nil, nil]; [warning show]; }else { SKPSMTPMessage *test_smtp_message = [[SKPSMTPMessage alloc] init]; test_smtp_message.fromEmail = fromEmail.text; test_smtp_message.toEmail = toEmail.text; test_smtp_message.relayHost = @"smtp.gmail.com"; test_smtp_message.requiresAuth = YES; test_smtp_message.login = @"[email protected]"; test_smtp_message.pass = @"myPass"; test_smtp_message.wantsSecure = YES; NSString *subject= @"Suggest a book for you"; test_smtp_message.subject = [NSString stringWithFormat:@"%@ < %@ > ",fromEmail.text, subject]; test_smtp_message.delegate = self; NSMutableArray *parts_to_send = [NSMutableArray array]; NSDictionary *plain_text_part = [NSDictionary dictionaryWithObjectsAndKeys: @"text/plain\r\n\tcharset=UTF-8;\r\n\tformat=flowed", kSKPSMTPPartContentTypeKey, [messageBody.text stringByAppendingString:@"\n"], kSKPSMTPPartMessageKey, @"quoted-printable", kSKPSMTPPartContentTransferEncodingKey, nil]; [parts_to_send addObject:plain_text_part]; // to send attachment NSString *image_path = [[NSBundle mainBundle] pathForResource:BookCover ofType:@"jpg"]; NSData *image_data = [NSData dataWithContentsOfFile:image_path]; NSDictionary *image_part = [NSDictionary dictionaryWithObjectsAndKeys: @"inline;\r\n\tfilename=\"image.png\"",kSKPSMTPPartContentDispositionKey, @"base64",kSKPSMTPPartContentTransferEncodingKey, @"image/png;\r\n\tname=Success.png;\r\n\tx-unix-mode=0666",kSKPSMTPPartContentTypeKey, [image_data encodeWrappedBase64ForData],kSKPSMTPPartMessageKey, nil]; [parts_to_send addObject:image_part]; test_smtp_message.parts = parts_to_send; Spinner.hidden = NO; [Spinner startAnimating]; ProgressBar.hidden = NO; HighestState = 0; [test_smtp_message send]; } }else { UIAlertView *alertNoconnection = [[UIAlertView alloc] initWithTitle:@"?????" message:@"?? ???? ???? " delegate:self cancelButtonTitle:@"?????" otherButtonTitles:nil, nil]; [alertNoconnection show]; } } but when I tried to send it gives me the following Exception: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSCFString appendString:]: nil argument' and it highlighted this line in SKPSMTPMessage.m [message appendString:[part objectForKey:kSKPSMTPPartMessageKey]]; and I Can't understand what is nil exactly Can Anyone help me in this issue? Thanks in Advance.

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  • datagrid speed issue

    - by girish
    i m binding gridview in asp.net application... i m about to bind some thousand records in datagrid... on RowDataBound event of the grid i need to check if the log in user is authorised to view the perticuler record...so i need to send database request...like wise such other two to three operation requires to send request to database.... about three to four request are sended to database during each row bound of the gridview...is it effective on speed of the grid?

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  • problem with join SQL Server 2000

    - by eyalb
    I have 3 tables - Items, Props, Items_To_Props i need to return all items that match all properties that i send example items 1 2 3 4 props T1 T2 T3 items_to_props 1 T1 1 T2 1 T3 2 T1 3 T1 when i send T1,T2 i need to get only item 1

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  • Android , Read in binary data and write it to file

    - by Shpongle
    Hi all , Im trying to read in image file from a server , with the code below . It keeps going into the exception. I know the correct number of bytes are being sent as I print them out when received. Im sending the image file from python like so #open the image file and read it into an object imgfile = open (marked_image, 'rb') obj = imgfile.read() #get the no of bytes in the image and convert it to a string bytes = str(len(obj)) #send the number of bytes self.conn.send( bytes + '\n') if self.conn.sendall(obj) == None: imgfile.flush() imgfile.close() print 'Image Sent' else: print 'Error' Here is the android part , this is where I'm having the problem. Any suggestions on the best way to go about receiving the image and writing it to a file ? //read the number of bytes in the image String noOfBytes = in.readLine(); Toast.makeText(this, noOfBytes, 5).show(); byte bytes [] = new byte [Integer.parseInt(noOfBytes)]; //create a file to store the retrieved image File photo = new File(Environment.getExternalStorageDirectory(), "PostKey.jpg"); DataInputStream dis = new DataInputStream(link.getInputStream()); try{ os =new FileOutputStream(photo); byte buf[]=new byte[1024]; int len; while((len=dis.read(buf))>0) os.write(buf,0,len); Toast.makeText(this, "File recieved", 5).show(); os.close(); dis.close(); }catch(IOException e){ Toast.makeText(this, "An IO Error Occured", 5).show(); } EDIT: I still cant seem to get it working. I have been at it since and the result of all my efforts have either resulted in a file that is not the full size or else the app crashing. I know the file is not corrupt before sending server side. As far as I can tell its definitely sending too as the send all method in python sends all or throws an exception in the event of an error and so far it has never thrown an exception. So the client side is messed up . I have to send the file from the server so I cant use the suggestion suggested by Brian .

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  • C# http network requests with Windows service

    - by Omegavirus
    hello, today i wrote a windows service which needs to send regular http requests to a server. the problem is that the service runs under the "SYSTEM" account as local service and as such a type of service it isn't allowed to access the network.. for installing the service i use this class: http://dl.dropbox.com/u/152585/ServiceInstaller.cs is there a way to send http requests in a .net c# windows service and get the http response? thanks. :)

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  • Sending Gmail from Local Host

    - by RJL
    I'm using the Acquia stack on my localhost (running Vista) and am trying unsuccessfully to send emails. I want to send them via Gmail, and have tried all sorts of settings in the php.ini file. There are no error messages, but no email is delivered. I've gotten no response on the Acquia forum, so I was hoping someone here might be able to help. Thanks very much.

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  • (gcc) Multi-Dim Array or Double Pointer for Warning-free Compile

    - by paul simmons
    Hi, I have a function, which is called sometimes with regular, sometimes dynamic arrays. If I define the function as function_name(int[10][10] a) and send int** as a parameter, I get a warning. Opposite, if I declare function_name(int** a) and send int[][] as a parameter (after casting) I cannot access to array elements inside function. What is the correctest way?

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  • Passing variables from Model to Model in codeigniter

    - by Craig Ward
    Hi, I need to pass a variable to model, that model needs to send another back and use that variable to query a different model. EG: I have a product_ID which I send to the product model, From that I find out the supplier_ID. I want to grab that supplier_ID to the supplier model to get the supplier name. How do you implement this in codeigniter?

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  • Custom URL for the Birdhouse app

    - by bryanjclark
    I'd like to figure out the custom URL scheme for the Birdhouse iPhone app, but there doesn't seem to be any documentation. Birdhouse is an app to store drafts for Twitter. I'd like to send it a string of text, and I know that it's possible: Birdhouse responds to the URL birdhouse:/// The Twitter app sends drafts to Birdhouse if it's installed on your phone. I've figured out the birdhouse:/// part, but how do I send the text?

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  • How to implement long lived network connection in dotnet

    - by mrt
    The idea is to have a windows service, that clients can connect to (tcp, wcf, remoting), and when the data changes in the windows service, send the changes to the clients. An example of this would be a stock pricing server, and when the price changes for instruments, send the changes to the client. Wcf does have streaming, but is that just for streaming one big message response or can it be used for lots of small messages ? Is sockets the only way to achieve this ?

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  • If I Design a CPU Can I Get it Realized in Hardware at a Reasonable Cost?

    - by mudge
    I want to design a CPU and possibly memory and other hardware. I could do this with a hardware description language. Once I do this is it possible for me to send my designs to a manufacturer who will realize the design in hardware and send back to me the CPU(s) ? Can it be done at a reasonable cost? I want to design and make my own computer system and actually have it realized in hardware.

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