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  • Question about fwrite API

    - by michael
    Hi, In C++, there is a fwrite() which writes a buffer to a file on disk: http://www.cplusplus.com/reference/clibrary/cstdio/fwrite/ Can you please tell me if there is any buffer inside that fwrite implementation? i.e. if I call fwrite() multiple times (say 10 times), does it actually invoke file i/o 10 different times? Thank you.

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  • C# windows forms not updating in method

    - by Oscar
    Hi! Im trying to call some windows forms code (like setting label.visible = true in some event code, everything compiles ok, but form does not react to change! What could be the problem? Problem is in lines: labelNewCall.Visible = true; timerNewCall.Enabled = true; code : http://pastebin.com/gV28PN4P also other code did not work, until i reordered some of if (order is not important but it did not work otherwise... )

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  • How to implement a login page in a GWT app?

    - by Gatis
    My WebApp needs to authenticate user before allowing any sort of access. The scenario I'm trying to implement is a login page with username and password fields. Once user hits "send" button, a sign like "Verifing..." should be shown up while an RPC call verifies credentials. In case of success, load the main app screen. What is the best way to implement that?

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  • Given an array of arguments, how do I send those arguments to a particular function in Ruby?

    - by Steven Xu
    Forgive the beginner question, but say I have an array: a = [1,2,3] And a function somewhere; let's say it's an instance function: class Ilike def turtles(*args) puts args.inspect end end How do I invoke Ilike.turtles with a as if I were calling (Ilike.new).turtles(1,2,3). I'm familiar with send, but this doesn't seem to translate an array into an argument list. A parallel of what I'm looking for is the Javascript apply, which is equivalent to call but converts the array into an argument list.

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  • What does KEYEVENTF_SILENT equate to

    - by Vaccano
    KEYEVENTF_SILENT is a constant used in calls like this one: keybd_event(VK_OFF, 0, KEYEVENTF_SILENT, 0); keybd_event(VK_OFF, 0, KEYEVENTF_SILENT | KEYEVENTF_KEYUP, 0); But since I am using .net I don't know what the actual value of KEYEVENTF_SILENT is. I can't call it with out knowing. Any ideas?

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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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  • Basic visual studio intellisense question

    - by maxp
    Ive used visual studio for years, but the answer this eludes me: When intellisense pops up, for a method call that takes more than one parameter, the summary for the first parameter is shown. The only way i've found to show the summary for the following parameter(s) is to either supply each parameter or just hit comma until i get the one im looking for. Ive tried ctrl+right arrow, shift + right arrow etc etc, without success. Just curious is all.

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  • InternetCheckConnection in VB6 returning false

    - by user191582
    Hi all, Not a VB6 expert... Trying to come up with a VB6 test app that calls InternetCheckConnection. In my test app, InternetCheckConnection always returns false regardless of the URL I use. I copied and pasted this code from a larger spaghetti-code app, but in the spaghetti-code, InternetCheckConnection seems to work fine, returns true. Is there some other function I have to call first in order for InternetCheckConnection to work?

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  • Type hinting for functions in Clojure

    - by mikera
    I'm trying to resolve a reflection warning in Clojure that seems to result from the lack of type inference on function return values that are normal Java objects. Trivial example code that demonstrates the issue: (set! *warn-on-reflection* true) (defn foo [#^Integer x] (+ 3 x)) (.equals (foo 2) (foo 2)) => Reflection warning, NO_SOURCE_PATH:10 - call to equals can't be resolved. true What is the best way to solve this? Can this be done with type hints?

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  • How can i Import a Managed C# dll into a Win32 C++ project ?

    - by Agito
    I am working on a solution, most of its core engine is developed as Win32 C++ (and is Platform independent and is also used on OS X), some time ago we needed to call C++ dll's of core engine from C# and I was able to Load main solution's DLL in C# (by the help of some threads here on SO). but now we have certain things implemented in Managed C# dll and need to use it in Win32 C++ project? (and just function definitions and dll are provided)

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  • CURL alternative in Python

    - by Gaurav
    I have a cURL call that I use in PHP: curl -i -H 'Accept: application/xml' -u login:key "https://app.streamsend.com/emails" I need a way to do the same thing in Python. Is there an alternative to cURL in Python. I know of urllib but I'm a Python noob and have no idea how to use it.

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  • Get all revisions from CVS repository

    - by Heinz
    Hi, I have set the correct CVS Root, within this root I have a repository which contains a number of files. In particular, I am interested in the revisions of one of the files, lets call it test.tex. Now I would like to get ALL different versions of this file, from the repository. Is there somehow a command that I could use to do that? Or do I need to extract them one after the other? Many thanks!

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  • Calling a C function in a pro*C file

    - by Sachin Chourasiya
    I have these line in my pro*C program. The function initAerage is defined in a C language and I am trying to call this function in a .pcc (pro C++) file. I am getting an error Error: initAverage(int i);was declared before with a different language extern "C" { int initAverage(int i); } Please help

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  • failed to load external entity error on SOAP

    - by hd
    i am call a web service which is locate on https protocol. and i get "failed to load external entity" error while calling it. as i search on google it is because in PHP5, SOAP class will not parse WSDL file located on a secure HTTPS connection. what is the solution? i don't want to use http instead of https.

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  • CodeIgniter - Calling a function from inside a view

    - by Chris
    Hey, Is it possible to call a function which is located in a controller from a view. This is what i have in my controller, as an example function checkKeyExists($userid, $key){ } Then inside my view i have the following if(checkKeyExists($row->id, $role->key)){ } But when i run it, it says that checkKeyExists is not defined. If anyone can let me know how i could do this, that would be great. Cheers

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  • Recurssion Question : Revision

    - by stan
    My slides say that A recurssive call should always be on a smaller data structure than the current one There must be a non recurssive option if the data structure is too small You need a wrapper method to make the recurssive method accessible Just reading this from the slides makes no sence, especially seeing as it was a topic from before christmas! Could anyone try and clear up what it means please? Thank you

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  • Visual Studio code generated when choosing to explicitly implement interface

    - by fearofawhackplanet
    Sorry for the vague title, but I'm not sure what this is called. Say I add IDisposable to my class, Visual Studio can create the method stub for me. But it creates the stub like: void IDisposable.Dispose() I don't follow what this syntax is doing. Why do it like this instead of public void Dispose()? And with the first syntax, I couldn't work out how to call Dispose() from within my class (in my destructor).

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  • How is this site opening a new window

    - by user217428
    Normally we can specify a target in the link or use javascript window.open to open a new window. But when I access this site www.wenxuecity.com (It is a chinese site) I could't find out how it opens each news in a new window. no target in the link. debug javascript doesn't show any call to window.open Could someone tell me how it is implemented? Thanks

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