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  • ANSI C as core of a C# project? Is this possible?

    - by Nektarios
    I'm writing a NON-GUI app which I want to be cross platform between OS X and Windows. I'm looking at the following architecture, but I don't know if it will work on the windows side: (Platform specific entry point) - ANSI C main loop = ANSI C model code doing data processing / logic = (Platform specific helpers) So the core stuff I'm planning to write in regular ANSI C, because A) it should be platform independent, B) I'm extremely comfortable with C, C) It can do the job and do it well (Platform specific entry point) can be written in whatever necessary to get the job done, this is a small amount of code, doesn't matter to me. (Platform specific helpers) is the sticky thing. This is stuff like parsing XML, accessing databases, graphics toolkit stuff, whatever. Things that aren't easy in C. Things that modern languages/frameworks will give for free. On OS X this code will be written in Objective-C interfacing with Cocoa. On Windows I'm thinking my best bet is to use C# So on Windows my architecture (simplified) looks like (C# or C?) - ANSI C - C# Is this possible? Some thoughts/suggestions so far.. 1) Compile my C core as a .dll -- this is fine, but seems there's no way to call my C# helpers unless I can somehow get function pointers and pass them to my core, but that seems unlikely 2) Compile a C .exe and a C# .exe and have them talk via shared memory or some kind of IPC. I'm not entirely opposed to this but it obviously introduces a lot of complexity so it doesn't seem ideal 3) Instead of C# use C++, it gets me some nice data management stuff and nice helper code. And I can mix it pretty easily. And the work I do could probably easily port to Linux. But I really don't like C++, and I don't want this to turn in to a 3rd-party-library-fest. Not that it's a huge deal, but it's 2010.. anything for basic data management should be built in. And targetting Linux is really not a priority. Note that no "total" alternatives are OK as suggested in other similar questions on SO I've seen; java, RealBasic, mono.. this is an extremely performance intensive application doing soft realtime for game/simulation purposes, I need C & friends here to do it right (maybe you don't, but I do)

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  • Shopping Cart with multiple orders in ASP

    - by Joao Heleno
    I'm building an e-commerce website in ASP.Net/C# and I'm having some difficulties with my shopping cart... I want my costumers to be able to say "I want X boxes, and each box carries Y items". Let's say, for instance, my website sells flowers. A client logs in and then chooses X bouquets and then for each bouquet he adds flowers from the catalog. Can you point me out some links or tips in order to achieve this behaviour? Thanks

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  • jquery ui is not scaling text properly!

    - by Stephen Belanger
    I'm trying use jquery ui to scale a div that I'm dragging around to make it easier to see what's behind it, but any text inside it is scaling strangely. The text itself becomes smaller, but it seems to have a bunch of padding around it and is floating now. The text extends past the bottom of the div even though it should be contained properly by the div. I put a red border around the lines of text and the borders are the same size as the original text. I'm not really sure what to do to get this to work... HTML: <div class="item draggable" id="item-1'"> <div class="image-block"> <a class="delete-button" title="delete me!" href="/remove/1" onclick="return $(this).confirm(\'Really remove this image?\');">X</a> <a class="image" href="/edit/1"><img src="/someimage.jpg" /></a> <div class="clear-block"></div> </div> <h3>Some title</h3> </div> CSS: div.image-list div.item { float:left; background:#fff; width:150px; padding:5px; margin:4px; border:1px solid #d3d5d6; } div.image-list div.item h3 { margin:0; padding:0; border:solid 1px #F00; } div.image-list div.item div.image-block a.delete-button { float:right; position:relative; background:#fff; display:none; top:0.8em; margin-bottom:-20.0em; width:3em; height:1.8em; padding:0.2em 1em; } div.image-list div.item div.image-block a.image { float:left; display:block; } .clear-block { clear:both; } jquery: $(".draggable").draggable({ helper: 'clone', start: function(ev, ui) { $(ui.helper).effect( "scale", { percent: 50 }, 200 ); } });

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  • I get the warning "Format not a string literal and no format arguments" at NSLog -- how can I correc

    - by dsobol
    Hello, I get the warning "Format not a string literal and no format arguments" on the NSLog call in the following block: (void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { NSLog([NSString stringWithFormat:@"%d", buttonIndex]); } I have read in another post here that this error message indicates an insecure use of NSLog. Could someone point me in the direction of a properly formatted string for this? Thanks for any and all assistance! Regards, Steve O'Sullivan

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  • Designing a web service to be called by another language

    - by CollegeProgrammer
    This will sound naive (but then I am a junior programmer), but if I write a web service say in Python (standard WSDL web service), I then need to host it so it is reachable from an end point. This will give a URI for the service and then from another language, say Java or VB.NET (any), I can add a web service (this one) and then call the web service's object model, correct? Thanks

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  • Setting the first two bytes of a block of memory

    - by idealistikz
    Suppose I have a block of memory as such: void *block = malloc(sizeof(void *) + size); How do I set the first two bytes of the block as NULL or have it point somewhere? I do not want to simply assign 'block' to NULL or to another pointer because I want to access the rest of the memory I malloc'ed.

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  • How does System.TraceListener prepend message with process name?

    - by btlog
    I have been looking at using System.Diagnostics.Trace for doing logging is a very basic app. Generally it does all I need it to do. The downside is that if I call Trace.TraceInformation("Some info"); The output is "SomeApp.Exe Information: 0: Some info". Initally this entertained me but no longer. I would like to just output "Some info" to console. So I thought writing a cusom TraceListener, rather than using the inbuilt ConsoleTraceListener, would solve the problem. I can see a specific format that I want all the text after the second colon. Here is my attempt to see if this would work. class LogTraceListener : TraceListener { public override void Write(string message) { int firstColon = message.IndexOf(":"); int secondColon = message.IndexOf(":", firstColon + 1); Console.Write(message); } public override void WriteLine(string message) { int firstColon = message.IndexOf(":"); int secondColon = message.IndexOf(":", firstColon + 1); Console.WriteLine(message); } } If I output the value of firstColon it is always -1. If I put a break point the message is always just "Some info". Where does all the other information come from? So I had a look at the call stack at the point just before Console.WriteLine was called. The method that called my WriteLine method is: System.dll!System.Diagnostics.TraceListener.TraceEvent(System.Diagnostics.TraceEventCache eventCache, string source, System.Diagnostics.TraceEventType eventType, int id, string message) + 0x33 bytes When I use Reflector to look at this message it all seems pretty straight forward. I can't see any code that changes the value of the string after I have sent it to Console.WriteLine. The only method that could posibly change the underlying string value is a call to UnsafeNativeMethods.EventWriteString which has a parameter that is a pointer to the message. Does anyone understand what is going on here and whether I can change the output to be just my message with out the additional fluff. It seems like evil magic that I can pass a string "Some info" to Console.WriteLine (or any other method for that matter) and the string that output is different.

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  • Data Generation Plan Missing from VS2010 Pro

    - by chobo2
    Hi I was following this tutorial http://nepomucenobr.com.br/blog/post/Generating-e2809cdummy-datae2809d-with-Visual-Studio.aspx and I got to the point where I am should add a data generation plan file. Yet when I click on the folder there is not data generation plan file. I don't know why. Do I have to install it separately or what? Or is it because I am using 2005 express?

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  • Strange use of the index in Mysql

    - by user309067
    explain SELECT feed_objects.* FROM feed_objects WHERE (feed_objects.feed_id IN (165,160,159,158,157,153,152,151,150,149,148,147,129,128,127,126,125,124,122,121,120,119,118,117,116,115,114,113,111,110)) ; +----+-------------+--------------+------+---------------+------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+--------------+------+---------------+------+---------+------+------+-------------+ | 1 | SIMPLE | feed_objects | ALL | by_feed_id | NULL | NULL | NULL | 188 | Using where | +----+-------------+--------------+------+---------------+------+---------+------+------+-------------+ Not used index 'by_feed_id' But when I point less than the values in the "WHERE" - everything is working right explain SELECT feed_objects.* FROM feed_objects WHERE (feed_objects.feed_id IN (165,160,159,158,157,153,152,151,150,149,148,147,129,128,127,125,124)) ; +----+-------------+--------------+-------+---------------+------------+---------+------+------+-------------+ | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | +----+-------------+--------------+-------+---------------+------------+---------+------+------+-------------+ | 1 | SIMPLE | feed_objects | range | by_feed_id | by_feed_id | 9 | NULL | 18 | Using where | +----+-------------+--------------+-------+---------------+------------+---------+------+------+-------------+ Used index 'by_feed_id' What is the problem?

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  • How do I create an NSArray with string literals?

    - by Kyle
    I'm attempting to create an NSArray with a grouping of string literals, however I get the compile error "Initializer element is not constant". NSArray *currencies = [NSArray arrayWithObjects:@"Dollar", @"Euro", @"Pound", nil]; Could someone point out what I'm doing wrong, and possibly explain the error message?

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  • How Can I Get a TextPointer from a mouse click in a FlowDocument

    - by Bear
    I would like to get the word that a user has clicked on in a FlowDocument. I am currently adding an event handler to every Run in the document and iterating through the TextPointers in the Run that was clicked, calling GetCharacterRect() on each one and checking if the rectangle contains the point. However, when the click occurs near the end of a long Run this takes 10 seconds. Is there any more efficient method?

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  • Connect to mercurial via ssh on windows

    - by richzilla
    Can anyone point me in the direction of a simple step by step guide as to how to connect to a mercurial repo via ssh on windows. Im really struggling to get my head around it, and so far i jus keep getting a string of errors. Any help would be appreciated.

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  • Browser Preview Utility

    - by just_wes
    Hello everybody, Are there any programs that render websites from the point of view of different browsers? In other words, I'd like to be able to open and view websites as if it were Internet Explorer, Firefox, Chrome, Safari, etc. It would be a bonus if the utility has a paned interface that lets you view pages side by side. Thanks!

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  • install GlassFish on VPS

    - by ManWard
    hi i want install GlassFish into the VPS.now i need tutorial for installing GlassFish on VPS [Linux OS] and configure it.also how can i point separated domains to separated Web applications on Enterprise Server ? thanks

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  • How to change the home directory of hudson?

    - by dfdfd
    I deployed hudson.war in the sun application server 9.1. I like to check how can i change the home directory of hudson to point to another directory becasue if using a .hudson directory is not ok as i have very little diskspace left in main disk drive.

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  • Skipping a line and reading another line in shell script while loop

    - by parameswar
    i have a code which reads a file line by line using a while loop. Inside the while loop, i have certain conditions. Is there a way using which i can skip the current line and read the next line based upon the condition ? Let me be precise: while read Line do //some sample conditions a=$Line if [ "a" == "b" ] //i want to go to the next line from this point. done < **inputfile** Any help would be appreciated.

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  • Dynamically loaded jQuery with GreaseMonkey inconsistent on pages (refreshing seems to fix it)... do

    - by uprightnetizen
    Hi, I want a custom page analysis footer on every site I visit... so I've used a method to attach JQuery to unsafeWindow. I then create a floating footer on the page. I want to be able to call commands in a menu, do some processing, then put the results in the footer. Unfortunately it sometimes works, sometimes it doesn't. At least two alerts should happen in the printOutput function. Sometimes it only fires one, then it (crashes?) without error? On other pages, both alerts fire and it finds the element, but it doesn't add the extra text. (e.g. www.linode.com) Refreshing the page, then running the printOutput command again seems to always work. Does anyone know what's going on??? The userscript can be installed at: http://www.captionwizard.com/test/page_analysis.user.js // ==UserScript== // @name page_analysis // @namespace markspace // @description Page Analysis // @include http://*/* // ==/UserScript== (function() { // Add jQuery var GM_JQ = document.createElement('script'); GM_JQ.src = 'http://code.jquery.com/jquery-1.4.2.min.js'; GM_JQ.type = 'text/javascript'; document.getElementsByTagName('head')[0].appendChild(GM_JQ); var jqueryActive = false; //Check if jQuery's loaded function GM_wait() { if(typeof unsafeWindow.jQuery == 'undefined') { window.setTimeout(GM_wait,100); } else { $ = unsafeWindow.jQuery; letsJQuery(); } } GM_wait(); function letsJQuery() { jqueryActive = true; setupOutputFooter(); } /******************************* Analysis FOOTER Functions ******************************/ function printOutput(someText) { alert('printing output'); if($('div.analysis_footer').length) { alert('is here - appending'); $('div.analysis_footer').append('<br>' + someText); } else { alert('not here - trying again'); setupOutputFooter(); $('div.analysis_footer').append('<br>' + someText); } } GM_registerMenuCommand("Test Output", testOutput, "k", "control", "k" ); function testOutput() { printOutput('testing this'); } function setupOutputFooter() { $('<div class="analysis_footer">Page Analysis Footer:</div>').appendTo('body'); $('div.analysis_footer').css('position','fixed').css('bottom', '0px').css('background-color','#F8F8F8'); $('div.analysis_footer').css('width','100%').css('color','#3B3B3B').css('font-size', '0.8em'); $('div.analysis_footer').css('font-family', '"Myriad",Verdana,Arial,Helvetica,sans-serif').css('padding', '5px'); $('div.analysis_footer').css('border-top', '1px solid black').css('text-align', 'left'); } }());

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  • (Android) How to catch a "ring" event?

    - by rockit
    Hi android developers! I'm clearly a newb, and I was wondering if anyone knows how I can detect a "ring" event on my cellphone through the android sdk? Generally I want to do something with the phone when it begins ringing! Any thoughts? If you want to simply point me to a page in the api documents that would be a good answer for me, I just don't know how to start my research!

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  • Ping remote server and wait to get data

    - by infinity
    Hi I'm building my first application for android and I've reached a point where I can't find a solution even have no idea what to search for in Google. So the problem: I am pinging a remote server with GET request through the application passing some parameters like file_id. Then the server gives back confirmation if the file exists or error otherwise, both in plain text. The error string is $$$ERROR$$$. Actually the confirmation is JSON string that holds the path to the file. If the file doesn't exists on the server it generated the error message and start downloading the file and processing it which normally takes 10-30 seconds. What would be the best way to check if the file is ready for download? I have DownloadFile class that extends AsyncTask but before I reach the point to download the file I need the URL which is dependant on the previous request which is in the main class in the UI thread. Here is some code: public class MainActivity extends Activity { private String getInfo() { // Create a new HttpClient and Post Header HttpClient httpClient = new DefaultHttpClient(); HttpGet httpPost = new HttpGet(infoUrl); StringBuilder sb = null; String data; JSONObject jObject = null; try { HttpResponse response = httpClient.execute(httpPost); // This might be equal "$$$ERROR$$$" if no file exists sb = inputStreamToString(response.getEntity().getContent()); } catch(ClientProtocolException e) { // TODO Auto-generated catch block Log.v("Error: pushItem ClientProtocolException: ", e.toString()); } catch (IOException e) { // TODO Auto-generated catch block Log.v("Error: pushItem IOException: ", e.toString()); } // Clean the data to be complaint JSON format data = sb.toString().replace("info = ", ""); try { jObject = new JSONObject(data); data = jObject.getString("h"); fileTitle = jObject.getString("title"); } catch (JSONException e) { // TODO Auto-generated catch block e.printStackTrace(); } downloadUrl = String.format(downloadUrl, fileId, data); return downloadUrl; } } So my idea was to get the content and if equal to $$$ERROR$$$ go into loop until JSON data is passed but I guess there is better solution. Note: I don't have control over the server output so have to deal with what I have.

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