Search Results

Search found 50600 results on 2024 pages for 'application lifecycle'.

Page 771/2024 | < Previous Page | 767 768 769 770 771 772 773 774 775 776 777 778  | Next Page >

  • VB.NET - cannot get Video Preview to work

    - by Yiu Korochko
    Hi, Overflow. I have an application which is supposed to convert a video via DirectShowSource. I have a checkbox which enables a button called "btnviewcrop" which shows a new form called crp.vb for cropping/shearing pixels off the video. Now, I have a Panel1 that I want to set as the owner (the video drawing surface) but when I set it to open, the application crashes (Error: Object reference not set to an instance of an object.) and I do not understand how to fix it. Here is my button code: Imports Microsoft.DirectX.AudioVideoPlayback Private Sub btnviewcrop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnviewcrop.Click Me.ShowInTaskbar = False Me.Enabled = False crp.Show() Dim cropperv As Video cropperv.Owner = crp.preview cropperv.FromFile(labinputfile.Text, True) cropperv.Play() End Sub

    Read the article

  • java statistics collection for performance evaluation

    - by user384706
    What is the most efficient way to collect and report performance statistic analysis from an application? If I have an application that uses a series of network apis, and I want to report statistics at runtime, e.g. Method doA() was called 3 times and consumed on avg 500ms Method doB() was called 5 times and consumed on avg 1200ms etc Then, I thought of using a well defined data structure (of collection) that each thread updates per remote call, and this can be used for the report. But I think that it will make the performance worse, for the time spend for statistics collection. Am I correct? How would I procceed if I used a background thread for this, and the other threads that did the remote calls were unaware of this collection gathering? Thanks

    Read the article

  • iphone - how to properly handle exceptional situations (signals ?)

    - by pmilosev
    Hi In my iphone app, I want to provide some sort of app termination handler that will do some final work (delete some sensitive data) before the application terminates. I want to handle as much of the termination situations as possible: 1) User terminates the app 2) The device runs out of battery 3) The system terminates the app due to some reason (e.g. out of memory or app freeze) 4) Application crashes (EXC_BAD_ACCESS or SIGSEGV) Any other exceptional situation ? What is the best way to achieve this (e.g. is applicationWillTerminate method called in situation 2) ? Is it possible to do the cleanup in a signal handler (includes iPhone Security framework calls) ? regards

    Read the article

  • How do I pass a struct (or class) message back and forth between a C# service and a separate VB 6 ap

    - by grantjumper
    I need to pass data between a c# service and a running vb 6 application, considering using Windows Messaging. How do I pass the data back and forth between a C# service and a running vb 6 application? Shortened sample of the data I am passing back and forth is below: namespace MainSection { public struct Info { private int _Id; private string _TypeCode; private float _Calc; private DateTime _ProcessDate; private bool _ProcessFlag; public int Id { get { return _Id; } set { _Id = value; } } public string TypeCode { get { return _TypeCode; } set { _TypeCode = value; } } public float Calc { get { return _Calc; } set { _Calc = value; } } public DateTime ProcessDate { get { return _ProcessDate} set { _ProcessDate = value; } } public bool ProcessFlag { get { return _ProcessFlag} set { _ProcessFlag = value; } } } }

    Read the article

  • Convert this curl to multi PHP

    - by user1642423
    I have this code and I want made 10 curl connections like this with multi but I don't know how to that with this specific code: What the code does? Make a curl requiest to an .asp page Uses the result to send some data in a form ($ciudad) then the page get this submit and make an internal request and show an result. Output the final result of that. function curl($header,$encoded,$cookie){ $options = array( CURLOPT_USERAGENT => $_SERVER['HTTP_USER_AGENT'], CURLOPT_TIMEOUT => 120, //CURLOPT_REFERER => '', //CURLOPT_HTTPHEADER => $header, CURLOPT_COOKIE => $cookie, CURLOPT_POST => true, CURLOPT_POSTFIELDS => $encoded, CURLOPT_RETURNTRANSFER => true, CURLOPT_HEADER => false, CURLOPT_FOLLOWLOCATION => true, ); $ch = curl_init("http://procesos.ramajudicial.gov.co/consultaprocesos/consultap.aspx"); curl_setopt_array( $ch, $options ); $output = curl_exec($ch); curl_close($ch); return $output; } $cookie = ""; foreach($_COOKIE as $k => $v) $cookie .= $k."=".$v.";"; $cookie = substr($cookie,0,strlen($cookie)-1); $encoded = ''; foreach($_POST as $name => $value) { $encoded .= urlencode($name).'='.urlencode($value).'&'; } $lk = "http://procesos.ramajudicial.gov.co/consultaprocesos/"; $header[] = 'User-Agent: '.$_SERVER['HTTP_USER_AGENT']; $header[] = 'Accept: text/xml,application/xml,application/xhtml+xml,text /html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5'; $header[] = 'Accept-Language: en-us,en;q=0.5'; $header[] = 'Accept-Encoding: gzip,deflate'; $header[] = 'Connection: keep-alive'; $header[] = 'Cookie : '.$cookie; $header[] = 'Content-Type: application/x-www-form-urlencoded'; $output = curl($header,$encoded,$cookie); $CIUDAD = urlencode("Medellin"); // to change $CORPORACION = urlencode("JUZGADOS CIVILES MUNICIPALES DE MEDELLIN"); // to change $DIGITOS = $numsus; // BEGIN STEP 1 $__VIEWSTATE = 'id="__VIEWSTATE" value="'; $i = stripos($output,$__VIEWSTATE) + strlen($__VIEWSTATE); $j = stripos($output,'"',$i); $__VIEWSTATE = substr($output,$i,$j-$i); $__EVENTVALIDATION = 'id="__EVENTVALIDATION" value="'; $i = stripos($output,$__EVENTVALIDATION) + strlen($__EVENTVALIDATION); $j = stripos($output,'"',$i); $__EVENTVALIDATION = substr($output,$i,$j-$i); $encoded = '__EVENTTARGET=DropDownList1&__EVENTARGUMENT=&__LASTFOCUS=&__VIEWSTATE='.urlencode($__VIEWSTATE).'&__EVENTVALIDATION='.urlencode($__EVENTVALIDATION).'&DropDownList1='.$CIUDAD.'&TextBox13='; $output = curl($header,$encoded,$cookie);

    Read the article

  • How do I create a point system in a Rails/Twitter app that assigns points to users and non-authentic

    - by codyvbrown
    I'm building a question and answer application on top of twitter and I'm hitting some snags because I'm inevitably dealing with two classes of users: authenticated and non-authenticated. The site enable users to give points to other users, who may or may not be authenticated, and I want to create a site-wide point system where the application stores and displays this information on their profile. I want to save this point data to the user because that would be faster and more efficient but non-authenticated users aren't in our system, we only have the twitter handle. So instead we display the points in our system like this: @points = point.all( :select => "tag, count(*) AS count", # Return tag and count :group => 'tag', # Group by the tag :order => "2 desc", :conditions => {:twitter_handle => params[:username]}) Is there a better way to do this? Is there a better way to associate data with non-authenticated users?

    Read the article

  • Error when accessing IIS 7 server variable from ASP.Net MVC

    - by StephSpr
    I have an ASP.Net MVC application which works fine on IIS 6.0 / Windows Server 2003. When installed on IIS 7.5 / Windows Server 2008 (integrated mode), it works but when the application attempts to generate an URL, it runs into the following error: [NullReferenceException: Object reference not set to an instance of an object.] System.Web.HttpServerVarsCollection.Get(String name) +10960764 System.Web.Mvc.PathHelpers.GenerateClientUrlInternal(HttpContextBase httpContext, String contentPath) +345 System.Web.Mvc.PathHelpers.GenerateClientUrl(HttpContextBase httpContext, String contentPath) +80 System.Web.Mvc.UrlHelper.GenerateUrl(String routeName, String actionName, String controllerName, RouteValueDictionary routeValues, RouteCollection routeCollection, RequestContext requestContext, Boolean includeImplicitMvcValues) +256 System.Web.Mvc.UrlHelper.Action(String actionName, String controllerName, RouteValueDictionary routeValues) +36 It looks like IIS7 fails to return the server name. There should be a configuration to set, but I couldn't find anything like that. Do you have any idea to fix this issue ? Thanks,

    Read the article

  • Who plans to go back to using Web Applications in ASP.NET 4.0?

    - by Banzor
    So, it looks like Microsoft has gone back to pushing Web Application Projects* in ASP.NET 4.0. If you are like me, you converted to Website Projects in 2.0 and have never looked back. I recently spent some time trying to convert a Website Project to Web Application Project and was surprised at how tedious it was. So I am wondering what everyone is planning to do in VS 2010? Also, feel free to mention what you use now. Maybe I am the only sucker that converted to using Website Projects in 2.0... *Excluding MVC since it is the only option there

    Read the article

  • Separation of domain and ui layer in a composite

    - by hansmaad
    Hi all, i'm wondering if there is a pattern how to separate the domain logic of a class from the ui responsibilities of the objects in the domain layer. Example: // Domain classes interface MachinePart { CalculateX(in, out) // Where do we put these: // Draw(Screen) ?? // ShowProperties(View) ?? // ... } class Assembly : MachinePart { CalculateX(in, out) subParts } class Pipe : MachinePart { CalculateX(in, out) length, diamater... } There is an application that calculates the value X for machines assembled from many machine parts. The assembly is loaded from a file representation and is designed as a composite. Each concrete part class stores some data to implement the CalculateX(in,out) method to simulate behaviour of the whole assembly. The application runs well but without GUI. To increase the usability a GUi should be developed on top of the existing implementation (changes to the existing code are allowed). The GUI should show a schematic graphical representation of the assembly and provide part specific dialogs to edit several parameters. To achieve these goals the application needs new functionality for each machine part to draw a schematic representation on the screen, show a property dialog and other things not related to the domain of machine simulation. I can think of some different solutions to implement a Draw(Screen) functionality for each part but i am not happy with each of them. First i could add a Draw(Screen) method to the MachinePart interface but this would mix-up domain code with ui code and i had to add a lot of functionality to each machine part class what makes my domain model hard to read and hard to understand. Another "simple" solution is to make all parts visitable and implement ui code in visitors but Visitor does not belong to my favorite patterns. I could derive UI variants from each machine part class to add the UI implementation there but i had to check if each part class is suited for inheritance and had to be careful on changes to the base classes. My currently favorite design is to create a parallel composite hierarchy where each component stores data to define a machine part, has implementation for UI methods and a factory method which creates instances of the corresponding domain classes, so that i can "convert" a UI assembly to a domain assembly. But there are problems to go back from the created domain hierarchy to the UI hierarchy for showing calculation results in the drawing for example (imagine some parts store some values during the calculation i want to show in the schematic representation after the simluation). Maybe there are some proven patterns for such problems?

    Read the article

  • Qt/C++ regular expression library with unicode property support

    - by Dave
    I'm converting an application from the .Net framework to Qt using C++. The application makes extensive use of regular expression unicode properties, i.e. \p{L}, \p{M}, etc. I've just discovered that the QRegExp class lacks support for this among other things (lookbehinds, etc.) Can anyone recommend a C++ regular expression library that: Supports unicode properties Is unicode-aware in other respects (i.e. \w matches more than ASCII word characters) As a bonus, supports lookbehinds. Please don't point me to the wikipedia article; I don't trust it. That article says that QRegExp supports unicode properties. Unless I'm really doing something wrong, it doesn't. I'm looking for someone actually using unicode properties with a regex library in a project.

    Read the article

  • OpenSocial and its usages

    - by Paul Knopf
    I have looked for some explanation on the exact usages for the set of standards known as OpenSocial. I need some clarification if I can use OpenSocial like the following. I would like to create one library used to community with an OpenSocial api for use in my website that will not 'behave' like an application described by common sites like facebook and myspace. I'm not making a myspace of facebook application, I'm creating my own website and I want users to be able to find friends. I would like to allow users to store usernames and passwords for various OpenSocial-supported social networks. I would also like to use the api to sync events from my web site to their specified social network. I would also like to allow my users to view a list of friends and invite them. Is it possible to create one library that supports OpenSocial and simple "point" to and social network that supports it to get a list of friends and etc?

    Read the article

  • Always require a plugin to be loaded

    - by axon
    I am writing an application with RequireJS and Knockout JS. The application includes an extension to knockout that adds ko.protectedObservable to the main knockout object. I would like this to always be available on the require'd knockout object, and not only when I specify it in the dependencies. I could concat the files together, but that seems that it should be unnecessary. Additionally, I can put knockout-protectedObservable as a dependency for knockout in the requirejs shim configuration, but that just leads to a circular dependency and it all fails to load. Edit: I've solved me issue, but seems hacky, is there a better way? -- Main.html <script type="text/javascript" src="require.js"></script> <script type="text/javascript"> require(['knockout'], function(ko) { require(['knockout-protectedObservable']); }); </script> -- knockout-protectedObservable.js define(['knockout'], function(ko) { ko.protectedObservable = { ... }; });

    Read the article

  • Sending string to wcf service using jquery ajax. why can i only send strings of numbers?

    - by Robodude
    Hi Guys, For some reason, I'm only able to pass strings containing numbers to my web service when using jquery ajax. This hasn't been an issue so far because I was always just passing IDs to my wcf service. But I'm trying to do something more complex now but I can't figure it out. In my interface: [OperationContract] [WebInvoke(ResponseFormat = WebMessageFormat.Json)] DataTableOutput GetDataTableOutput(string json); My webservice: public DataTableOutput GetDataTableOutput(string json) { DataTableOutput x = new DataTableOutput(); x.iTotalDisplayRecords = 9; x.iTotalRecords = 50; x.sColumns = "1"; x.sEcho = "1"; x.aaData = null; return x; } Javascript/Jquery: var x = "1"; $.ajax({ type: "POST", async: false, url: "Services/Service1.svc/GetDataTableOutput", contentType: "application/json; charset=utf-8", data: x, dataType: "json", success: function (msg) { }, error: function (XMLHttpRequest, textStatus, errorThrown) { //alert(XMLHttpRequest.status); //alert(XMLHttpRequest.responseText); } }); The above code WORKS perfectly. But when I change x to "t" or even to "{'test':'test'}" I get a Error 400 Bad Request error in Firebug. Thanks, John EDIT: Making some progress! data: JSON.stringify("{'test':'test'}"), Sends the string to my function! EDIT2: var jsonAOData = JSON.stringify(aoData); $.ajax({ type: "POST", async: false, url: sSource, contentType: "application/json; charset=utf-8", data: "{'Input':" + jsonAOData + "}", dataType: "json", success: function (msg) { }, error: function (XMLHttpRequest, textStatus, errorThrown) { //alert(XMLHttpRequest.status); //alert(XMLHttpRequest.responseText); } }); EDIT3: I modified the code block I put in EDIT2 up above. Swapping the " and ' did the trick! $.ajax({ type: "POST", async: false, url: sSource, contentType: "application/json; charset=utf-8", data: '{"Input":' + jsonAOData + '}', dataType: "json", success: function (msg) { }, error: function (XMLHttpRequest, textStatus, errorThrown) { //alert(XMLHttpRequest.status); //alert(XMLHttpRequest.responseText); } }); However, I have a new problem: public DataTableOutput GetDataTableOutput(DataTableInputOverview Input) { The input here is completely null. The values I passed from jsonAOData didn't get assigned to the DataTableInputOverview Input variable. :(

    Read the article

  • Help need for openfast implementation

    - by ganuke
    Our stock exchange going to implement FAST messaging in their system in order to reduced the bandwidth usage. We have already implement the FIX based application to trade with Stock exchange. In future we need implement FIX FAST in our application to communicate with them. I found that OPEN FAST is FAST based library. But I do not have any idea how to start with it. I went through OpenFast web site but could not find much support on how to use templates and dictionaries. Can some one guide me or provide some resources to start with? Thanks in advance.

    Read the article

  • Global list in C/gtk+

    - by sterh
    Hello, I need in global list in my gtk+ application, i use for it GList: For example: I have structure: typedef struct _data { Glist list; }Data; I want to use one copy of the list in the whole program: I have a function bulid my list: gboolean build_list() { Data->list = g_list_append(mw->a, "First "); Data->list = g_list_append(mw->a, "Second "); Data->list = g_list_append(mw->a, "Third "); g_list_foreach(Data->list, (GFunc)printf, NULL); } After calling this function to display all items in the list. zbut when i try to make it in another function - for example: void foreach() { g_list_foreach(Data->list, (GFunc)printf, NULL); } I see error in gdb: *Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb7335700 (LWP 5364)] 0xb765a7d7 in strchrnul () from /lib/i686/cmov/libc.so.6 * How can i create global list in my application? Thank you.

    Read the article

  • ASp.Net MVC routing

    - by suneehs
    Hi, I am using MVC 2.0 to create my application,my problem i s related to the routing. Actually in my application each user have required seperate subdomain,like www.example.com/user1/ ,www.example.com/user2/ ...etc.the default domain is www.example.com.So how can i make it possible with routing in mvc. i have tried like this, routes.Add(new Route( "{id}", new RouteValueDictionary( new { controller = "User", action = "login", id = " " } ), new MvcRouteHandler())); var defaults = new RouteValueDictionary( new { controller = "Home", action = "Index", id = UrlParameter.Optional } ); routes.Add(new Route( "{controller}/{action}/{id}", defaults, new MvcRouteHandler())); But the problem is that it take deafult (www.example.com) directly to user login page.I want the default page as Home/index and when www.example.com/user1/ it will go to user login page.Is there any way ..pls help me

    Read the article

  • WM_SYSCOMMAND oddities

    - by Andreas Rejbrand
    An application recieves the WM_SYSCOMMAND message when the user selects a menu item command on the system menu, and so wParam can be SC_CLOSE, SC_CONTEXTHELP, SC_MAXIMIZE, SC_MINIMIZE, SC_RESTORE etc. That's logical. But one can also send the WM_SYSCOMMAND message to send commands to the Windows Shell. For instance, one can display the start menu (SC_TASKLIST), activate the screen saver (SC_SCREENSAVE), and turn off the monitor (SC_MONITORPOWER). This does not make sense, does it? What does this have to do with the application's system menu? This is more of a "system command", i.e. more of a completely other interpretation of the name "WM_SYSCOMMAND" of the message. It's like the message is used to send command requests to the system. Why is this message used for two seemingly entirely different things, and what thing does the name "SYSCOMMAND" refer to (command on the system menu, or command of the operating system)?

    Read the article

  • PHP 2-way encryption: I need to store passwords that can be retrieved

    - by gAMBOOKa
    I am creating an application that will store passwords, which the user can retrieve and see. The passwords are for a hardware device, so checking against hashes are out of the question. What I need to know is: How do I encrypt and decrypt a password in PHP? What is the safest algorithm to encrypt the passwords with? Where do I store the private key? Instead of storing the private key, is it a good idea to require users to enter the private key any time they need a password decrypted? (Users of this application can be trusted) In what ways can the password be stolen and decrypted? What do I need to be aware of?

    Read the article

  • Android add image to button

    - by Christiaan de Jong
    I want to add an image to a Button (no imagebutton, as the particular button can either contain text or an image; plus the imagebutton has the same problem), while still retaining the original android-style button. So adding android:background in the XML doesn't cut it, as that will remove the android default button with rounded corners etc. (android.R.drawable.btn_default) Is this in any way possible? I think one way is to make a 9patch image for the button pressed (one for up and one for down) and onTouch Action_DOWN make a layered background drawable and put that onto the button, and doing the same thing but with another 9patch for onTouch Action_UP, but I think that will decrease the performance of the application substantially, as that will require quite a lot of resource reading and layer merging for all the button clicks (and for my application, that will be quite a lot). Is what I state above correct?

    Read the article

  • How can we store password other than plain text?

    - by Eric
    I've found numerous posts on stackoverflow on how to store user passwords. However, I need to know what is the best way to store a password that my application needs to communicate with another application via the web? Currently, our web app needs to transmit data to a remote website. To upload the data, our web app reads the password from a text file and creates the header with payloads and submits via https. This password in plain text on the file system is the issue. Is there any way to store the password more securely? Thanks!

    Read the article

  • Creating and Saving an Excel File

    - by Kris
    I have the following code that creates a new Excel file in my C# code behind. When I attempt to save the file I would like the user to select the location of the save. In Method #1, I can save the file my using the workbook SaveCopyAs without prompting the user for a location. This saves one file to the C:\Temp directory. Method #2 will save the file in my Users\Documents folder, then prompt the user to select the location and save a second copy. How can I eliminate the first copy from saving in the Users\Documents folder? Excel.Application oXL; Excel._Workbook oWB; Excel._Worksheet oSheet; Excel.Range oRng; try { //Start Excel and get Application object. oXL = new Excel.Application(); oXL.Visible = false; //Get a new workbook. oWB = (Excel._Workbook)(oXL.Workbooks.Add(Missing.Value)); oSheet = (Excel._Worksheet)oWB.ActiveSheet; // ***** oSheet.Cells[2, 6] = "Ship To:"; oSheet.get_Range("F2", "F2").Font.Bold = true; oSheet.Cells[2, 7] = sShipToName; oSheet.Cells[3, 7] = sAddress; oSheet.Cells[4, 7] = sCityStateZip; oSheet.Cells[5, 7] = sContactName; oSheet.Cells[6, 7] = sContactPhone; oSheet.Cells[9, 1] = "Shipment No:"; oSheet.get_Range("A9", "A9").Font.Bold = true; oSheet.Cells[9, 2] = sJobNumber; oSheet.Cells[9, 6] = "Courier:"; oSheet.get_Range("F9", "F9").Font.Bold = true; oSheet.Cells[9, 7] = sCarrierName; oSheet.Cells[11, 1] = "Requested Delivery Date:"; oSheet.get_Range("A11", "A11").Font.Bold = true; oSheet.Cells[11, 2] = sRequestDeliveryDate; oSheet.Cells[11, 6] = "Courier Acct No:"; oSheet.get_Range("F11", "F11").Font.Bold = true; oSheet.Cells[11, 7] = sCarrierAcctNum; // ***** Method #1 //oWB.SaveCopyAs(@"C:\Temp\" + sJobNumber +".xls"); Method #2 oXL.SaveWorkspace(sJobNumber + ".xls"); } catch (Exception theException) { String errorMessage; errorMessage = "Error: "; errorMessage = String.Concat(errorMessage, theException.Message); errorMessage = String.Concat(errorMessage, " Line: "); errorMessage = String.Concat(errorMessage, theException.Source); }

    Read the article

  • How a web app identify if a click came from another web app via code?

    - by Diego
    Hi, we have a web application that users can take online reports from ou ERP system data... And we have another web application that is used by our teachers and employees. We can't change the ERP web app because its a closed DLL, in this case we made some extended functionality in our custom internal web app and we are willing to put this functionality on the "menu" of the ERP web app. I need to integrate the two applications in the following way: When I click in the menu of the ERP web app, I want that our internal web app assert that the click have come from our ERP web app and not typed in the URL, this is possible?

    Read the article

  • Facebook, Flash and maintaining state

    - by Myk
    So here's the situation: I have a Flash application I'm deploying to facebook as a canvas app. There are various states within this app - different "pages", sort of. I want to be able to share this app with other users using Facebook's baked-in sharing mechanism. However, I want each state to have its own share button. That way when someone clicks Share on page 3 they are actually sharing page 3, not the root of the whole application. Does anyone know if Facebook exposes some mechanism by which this could be possible? It would be as simple as passing a string into the iFrame that holds the canvas app, so I could load it in as a FlashVar and work from there. I'm kind of beating my head against the wall - does this request make sense, and has anyone tackled anything like this before? Thanks!

    Read the article

< Previous Page | 767 768 769 770 771 772 773 774 775 776 777 778  | Next Page >