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  • Android: Replace a TabSpec Content

    - by Ally
    I have a TabHost with a bunch of tabs each with a TabSpec. I'd like to change the content of one of the TabSpecs but I don't seem to be able to. I've read a few places that it's not possible to change the content of a TabSpec. Does anyone know why I can add/remove tabs but not change the content of them? And can anyone suggest a workaround for this problem?

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  • QueryInterface fails at casting inside COM-interface implementation

    - by brecht
    I am creating a tool in c# to retrieve messages of a CAN-network (network in a car) using an Dll written in C/C++. This dll is usable as a COM-interface. My c#-formclass implements one of these COM-interfaces. And other variables are instantiated using these COM-interfaces (everything works perfect). The problem: The interface my C#-form implements has 3 abstract functions. One of these functions is called -by the dll- and i need to implement it myself. In this function i wish to retrieve a property of a form-wide variable that is of a COM-type. The COM library is CANSUPPORTLib The form-wide variable: private CANSUPPORTLib.ICanIOEx devices = new CANSUPPORTLib.CanIO(); This variable is also form-wide and is retrieved via the devices-variable: canreceiver = (CANSUPPORTLib.IDirectCAN2)devices.get_DirectDispatch(receiverLogicalChannel); The function that is called by the dll and implemented in c# public void Message(double dTimeStamp) { Console.WriteLine("!!! message ontvangen !!!" + Environment.NewLine); try { CANSUPPORTLib.can_msg_tag message = new CANSUPPORTLib.can_msg_tag(); message = (CANSUPPORTLib.can_msg_tag) System.Runtime.InteropServices.Marshal.PtrToStructure(canreceiver.RawMessage, message.GetType()); for (int i = 0; i < message.data.Length; i++) { Console.WriteLine("byte " + i + ": " + message.data[i]); } } catch (Exception e) { Console.WriteLine(e.Message); } } The error rises at this line: message = (CANSUPPORTLib.can_msg_tag)System.Runtime.InteropServices.Marshal.PtrToStructure(canreceiver.RawMessage, message.GetType()); Error: Unable to cast COM object of type 'System.__ComObject' to interface type 'CANSUPPORTLib.IDirectCAN2'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{33373EFC-DB42-48C4-A719-3730B7F228B5}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). Notes: It is possible to have a timer-clock that checks every 100ms for the message i need. The message is then retrieved in the exact same way as i do now. This timer is started when the form starts. The checking is only done when Message(double) has put a variable to true (a message arrived). When the timer-clock is started in the Message function, i have the same error as above Starting another thread when the form starts, is also not possible. Is there someone with experience with COM-interop ? When this timer

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  • Run Smalltalk on server without GUI?

    - by Damir Horvat
    Hi! I've got rather distinct question - I'd like to run Smalltalk on a production server without using graphical interface. Is this possible with VW or Pharo (maybe even Squeak)? I've got a VPS hosting without X and would like to have few websites running on Smalltalk, while developing them localy with full-blown Smalltalk env, including GUI. Thanks, Damir

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  • Google earth GEOdata ?

    - by Quandary
    Question: Is it possible to use/retrieve Geodata from Google-Earth ? What I want to do is take a little area, get terrain information (coordinates, height, elevation) and simulate how the selected area would be flooded at specified amounts of rain for a specified amount of hours.

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  • Windows service and mingw

    - by Vasiliy Stavenko
    Is there possibility to compile windows service using only mingw c++ compiler and library? I assume that it is possible to use compiler with Visual Studio standard library and means, but want to do to this almost fully opensourced. Any experience?

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  • NSThread with class method?

    - by Jeroen Sterckx
    Is it possible to run a class method (starting with a '+') in a separate thread? Normally I call the method like [myClass myController]; I tried [NSThread detachNewThreadSelector:myController toTarget:myClass withObject:nil]; without success.

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  • Downloading & Viewing ePub Books

    - by david
    I have the following requirements for an iPad App and would like to know if it's possible to implement them: Download ePub books and view them in iPads iBooks reader Install the downloaded book in the devices itunes library, so that they are accessibly from the iBooks applications

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  • How do validate a string as DateTime using FluentValidation

    - by Richard Nienaber
    With FluentValidation, is it possible to validate a string as a parseable DateTime without having to specify a Custom() delegate? Ideally, I'd like to say something like the EmailAddress function, e.g.: RuleFor(s => s.EmailAddress).EmailAddress().WithMessage("Invalid email address"); So something like this: RuleFor(s => s.DepartureDateTime).DateTime().WithMessage("Invalid date/time");

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  • Facebook API: Set User Status with "@mentions" integration

    - by JWD
    StackOverflow'ers, I realize the new "@mentions" is a very new feature to facebook, but can any of you think of how to access this feature using the Facebook API? I would assume there would need to be a separate call to get a list of available users/applications/ect... I am just brainstorming here, I realize this may not be possible yet. Any help is much appreciated. Thanks!

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  • ModelMultipleChoiceField and reverse()

    - by celopes
    I have a form containing a ModelMultipleChoiceField. Is it possible to come up with a url mapping that will capture a varying number of parameters from said ModelMultipleChoiceField? I find myself doing a reverse() call in the view passing the arguments of the form submission and realized that I don't know how to represent, in the urlconf, the multiple values from the SELECT tag rendered for the ModelMultipleChoiceField...

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  • Google Ajax search API

    - by jAndy
    Hi Folks, I'm wondering, is it possible to receive google results over their own ajax API in a way like, 100 results per page? Without a visible search field, I'd like to get the results in the background to create a progression for some search phrases. My basic question is, what are the restrictions of the google search api ? Kind Regards --Andy

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  • Case insensitive Regex without using RegexOptions enumeration

    - by spoon16
    Is it possible to do a case insensitive match in C# using the Regex class without setting the RegexOptions.IgnoreCase flag? What I would like to be able to do is within the regex itself define whether or not I want the match operation to be done in a case insensitive manner. I would like this regex, taylor, to match on the following values: Taylor taylor taYloR

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  • Android: how to place a button at an x,y position over top of Canvas

    - by Ben Mc
    Is it possible to place buttons at an X,Y position over the top of a Canvas? For example, on the opening screen of my game, I would like to place buttons for "Play Now", "Instructions", etc, right on top of the canvas. Right now, I'm looking at Touch locations on the Canvas and comparing them to various X,Y bounds. It works, but adding a button with a click listener would probably be much more efficient.

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  • Google Visualization API chart in Blogger / Blogspot

    - by gotgenes
    Is it possible to embed (chart) visualizations created by the Google Visualization API in a Blogger post? I tried stripping out the <head> and <body> tags (and closing tags) from the pie chart example, however, the pie chart visualization fails to render, even on a published post. NOTE: I'm asking about the Visualization API, rather than the Google Image Charts (Charts API).

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  • Can I use HTML5 Now to create a website

    - by Steve
    After all the latest news and talk about HTML5, I would like to know whether I can use HTML5 to create a website as of now. I mean, some features are supported by few browsers, while few features are not yet supported. So is it possible to create a full-fledged website at the current state?

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