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Search found 27144 results on 1086 pages for 'tail call optimization'.

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• NSTextField enter to trigger action

  - by Chris

  I've been looking all over for a simple example of how to have an action (or button) be triggered when the enter key is hit in the text field. Should I subclass the text field? Would I need to set a delegate to call the action I need? Is there a way to catch the event in my main window controller class? If you could even just point me to the right direction that would be great. Thanks.

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• what's the right way to cause a subview to redraw when the device orientation changes?

  - by RobertL

  I have a view controller with a view and one subview. When the device orientation changes the view auto-redraws but the subview doesn't. If I explicitly do [subview setNeedsDisplay] it redraws but I don't have a logical place to put that call in my code. And, since I don't have to explicitly tell the view to redraw, it seems counter-intuitive to tell the subview to redraw. Is there a way to make the subview auto-redraw when the view redraws?

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• Ruby equivalent to "grep -C 5" to get context of lines around the match?

  - by wonderfulthunk

  I've searched for this a bit but I must be using the wrong terms - does ruby have a way to grep for a string/regex and also return the surrounding 5 lines (above and below)? I know I could just call "grep -C 5 ..."or even write my own method, but it seems like something ruby would have and I'm just not using the right search terms.

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• how to handle click event in win32 API?

  - by Rakesh

  I have created a simple win 32 application..in which it has a textbox and a button in a dialog window..first when I created this..it didnt display the dialog window and then what I did is added the code below to handle the close(WM_CLOSE) of the dialog window...but I want to know, how to handle the button click event.. LRESULT WINAPI myProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { if(message == WM_CLOSE ) { PostQuitMessage(0); } return 0; } to call the above in my main pgm I used SetWindowLong(hwnd,DWL_DLGPROC, (long)myProc)

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• how to change NSCursor and effect on my application.

  - by iSight

  Hi, I have obtained the crosshair cursor from NSCursor crosshairCursor. Then, how can i change to it. I don't want to call enclosingScrollView to setDocumentCursor as [[view enclosingScrollView] setDocumentCursor:crosshaircursor ];

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• Passing windows credentials through web application, to WCF

  - by IP

  I've checked other questions, but I can't find a working answer I have a .Net web application which successfully takes on the callers windows credentials (Thread.CurrentPrincipal is my windows user). Within that app, I call to a WCF service, but my windows identity isn't passed up. Regardless of what I put in the binding: NetTcpBinding binding = new NetTcpBinding(); binding.Security.Mode = SecurityMode.Transport; binding.Security.Transport.ClientCredentialType = TcpClientCredentialType.Windows;

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• 'Invalid conversion from some_type** to const some_type**'

  - by petersohn

  I've got a function that requires const some_type** as an argument (some_type is a struct, and the function needs a pointer to an array of this type). I declared a local variable of type some_type*, and initialized it. Then I call the function as f(&some_array), and the compiler (gcc) says: error: invalid conversion from ‘some_type**’ to ‘const some_type**’ What's the problem here? Why can't I convert a variable to const?

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• Android::Creating a clickable collage?

  - by Legend

  I am trying to create something like a rectangular grid with pictures. When a picture is clicked, it should zoom in pushing the other ones out. I don't know what you name you call this particular model with but does anyone have suggestions on where I should start? Collage Example

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• What is the most standard and compatible way to make a whole table row into a link?

  - by Ricket

  Obviously you can't just surround the <tr> tag with an <a> tag and call it a day; this is invalid and doesn't even work. I have seen JavaScript used, but then what happens to browsers that don't support JavaScript? What is the best way to make an entire table row <tr> into a link?

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• Calling member function declared in another dll

  - by bharat

  I have created CMyClass,in which defined one method CallMe().when I build this project MyProject.dll is generated. Now in some another project, I want to call CallMe of CMyClass . can anybody tell me how to do it ? Thanks in advance....

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• Setting system date and time from the application

  - by Sundar

  I have a application that is developed using .Net Compact frame work 3.5, i need to synchronize the device date and time with the central server on every web service call. Thanks.

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• What are the suggested alternatives for Class<T>.isAssignableFrom(Class<?> cls)?

  - by Wing C. Chen

  Currently I am doing the profiling to a piece of code. During the profiling, I discovered that this very method call, Class<T>.isAssignableFrom(Class<?> cls) takes up to quite amount of the entire time. Because this is a method from reflection, it takes a lot of time compared to normal keywords or method calls. I am wondering if there are some good alternatives for this method calls?

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• How can I know which button I clicked to start an action inside the program?

  - by wolverine

  I have 3 buttons which call the same function. I want to know inside the function which button called it. Is it possible to know it?

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• Joomla 2.5 - Modify registration form and logic

  - by ice13ill

  Hello I'm new to Joomla and I want to change the way an account is created (in Joomla 2.5): Change the registation form (remove one or two fields) Change the registration logic: I want to add more stuff in the sent email (and a pdf attachment) and also i want to call some other functions (or make extra requests), analyse the result and then return the response to the client. What ways are there?

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• utl_file.FCLOSE() is slow with large files

  - by Dan

  We are using utl_file in Oracle 10g to copy a blob from a table row to a file on the file system and when we call utl_file.fclose() it takes a long time. It's a 10mb file, not very big, and it takes just over a minute to complete. Anyone know why this would be so slow? Thanks

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• How can I limit access to specific functions in CodeIgniter?

  - by Jagira

  Hello, I have a huge controller in codeigniter, with many functions. I want to limit access to certain functions. How should I proceed? And can I call the functions using cron daemon???

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• c++/boost: use tuple ctors when subclassing

  - by bbb

  Hi there, is there some way to use a boost tuple's ctors as an addition to the subclass methods (and ctors) like here? // typedef boost::tuple<int, SomeId, SomeStatus> Conn; // Conn(1); // works and initializes using default ctors of Some* struct Conn : boost::tuple<int, AsynchId, AccDevRetStatus> {}; Conn(1); // "no matching function call" (but i want it so much) T.H.X.

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• boost::function function pointer to parameters?

  - by high6

  How does boost::function take a function pointer and get parameters from it? I want wrap a function pointer so that it can be validated before being called. And it would be nice to be able to call it like boost::function is with the () operator and not having to access the function pointer member. Wrapper func; func(5); //Yes :D func.Ptr(5) //Easy to do, but not as nice looking

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• How to move an anonymous function out

  - by cf_PhillipSenn

  I have a $.ajax call with an error callback: error: function(result){ $('#msg').text(result.statusText).addClass('err'); } I'd like to change it to a more generic: error: myError(result) And then all by itself: function myError(theError){ $('#msg').text(theError.statusText).addClass('err'); } But firebug is telling me "result" is not defined.

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• Android runs OpenGL ES 1.1 or 1.0?

  - by cjserio

  I'm developing a native app for Android and I'm trying to use functions such as glIsEnabled which appear to be only available in OpenGL ES 1.1. Google's docs claim that NDK 1.6R1 supports OpenGL ES v1.1 but the function call fails with "unimplemented Open GL ES API" and if i do a glGetString(GL_VERSION) it returns "OpenGL ES 1.0 CM" as the version. So if 1.1 is available, what do I have to link against to get it or what else do i need to change to get it?

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• Is VS what's the name of the dropwdowns with classes, functions, etc under the tabs?

  - by Fraga

  I am developing an extension, and i need to read the value of this two dropdowns, but i dont know what they are call. Any idea or guess?

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• Where can i find strong .Net Developers for London based contract work [closed]

  - by Will Excell

  I can't seem to find any strong .Net developers who are the kind of guys that love technology and blogging etc. Are you guys out there? If so i have a client in the e-commerce sector looking. Give me a call if you want to know more, 0207 333 2637

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• how to watch input buttons with specified name?

  - by user393087

  For example I have long list of buttons: <input type=button name=clickbutton onclick='dosomething(this)'> But instead of putting call to the same funcion in every button it would be more rational to add a single listening event that would wait for click of that button with this name. But again, there are maany this buttons so I need pass clicked object to a function. For example this function must update a textarea field that is adjacent (nextSibling) to this button.

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• How can I move deleting photos to the background with delayed_job and paperclip

  - by Tam

  I let my users create photo albums with many photos. Relationship as follows: has_many :album_photos, :dependent => :destroy i upload photos to S3 When the user delete album I want to delete all photos as the relationship shows but it takes time if the user has many photos. Can I automatically set photo deletion to happen in the background (delayed_job) without having to manually call 'send_later' on every photo?

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• Django | How to pass form values to an redirected page

  - by MMRUser

  Here's my function: def check_form(request): if request.method == 'POST': form = UsersForm(request.POST) if form.is_valid(): cd = form.cleaned_data try: newUser = form.save() return HttpResponseRedirect('/testproject/summery/) except Exception, ex: # sys.stderr.write('Value error: %s\n' % str(ex) return HttpResponse("Error %s" % str(ex)) else: return render_to_response('index.html', {'form': form}, context_instance=RequestContext(request)) else: form = CiviguardUsersForm() return render_to_response('index.html',context_instance=RequestContext(request)) I want to pass each and every field in to a page call summery and display all the fields when user submits the form, so then users can view it before confirming the registration. Thanks..

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