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  • PlaySound linker error in C++

    - by logic-unit
    Hello, I'm getting this error: [Linker error] undefined reference to 'PlaySoundA@12' Id returned 1 exit status From this code: // c++ program to generate a random sequence of numbers then play corresponding audio files #include <windows.h> #include <mmsystem.h> #include <iostream> #pragma comment(lib, "winmm.lib") using namespace std; int main() { int i; i = 0; // set the value of i while (i <= 11) // set the loop to run 11 times { int number; number = rand() % 10 + 1; // generate a random number sequence // cycling through the numbers to find the right wav and play it if (number == 0) { PlaySound("0.wav", NULL, SND_FILENAME); // play the random number } else if (number == 1) { PlaySound("1.wav", NULL, SND_FILENAME); // play the random number } //else ifs repeat to 11... i++; // increment i } return 0; } I've tried absolute and relative paths for the wavs, the file size of them is under 1Mb each too. I've read another thread here on the subject: http://stackoverflow.com/questions/1565439/how-to-playsound-in-c As you may well have guessed this is my first C++ program, so my knowledge is limited with where to go next. I've tried pretty much every page Google has on the subject including MSDN usage page. Any ideas? Thanks in advance...

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  • Castle Windsor Dynamic Property in XML config

    - by haxelit
    I'm trying to set the DataContext on ApplicationMainWindow which is a WPF window. When I set it up in the XML like so it leaves the DataContext null: <!-- View Models --> <component id="mainwindow.viewmodel" type="ProjectTracking.ApplicationMainViewModel, ProjectTracking" inspectionBehavior="none" lifestyle="transient"> </component> <!-- UI Components --> <component id="mainwindow.view" type="ProjectTracking.ApplicationMainWindow, ProjectTracking" inspectionBehavior="none" lifestyle="transient"> <parameters> <DataContext>${mainwindow.viewmodel}</DataContext> </parameters> </component> But if I do it this way via C# it works. _Kernel.Register( ... Component.For<ApplicationMainWindow>() .DynamicParameters( (k,d) => { d["DataContext"] = k[typeof(ApplicationMainViewModel)]; }) ); I'm instantiating my window like so: Window window = _Kernel[typeof(ApplicationMainWindow)] as Window; When I configure windsor via the xml config it leaves my DataContext NULL, but when I configure it via code it works like a charm. Do I need to use code to pull this off, or should it work via XML config ? Thanks, Raul

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  • How do I fork a maximum of 5 child processes of the parent at any one time?

    - by bstullkid
    I have the following code, which I'm trying to only allow a maximum of 5 children to run at a time, but I can't figure out how to decrement the child count when a child exits. struct { char *s1; char *s2; } s[] = { {"one", "oneB"}, {"two", "twoB"}, {"three", "thr4eeB"}, {"asdf", "3th43reeB"}, {"asdfasdf", "thr33eeB"}, {"asdfasdfasdf", "thdfdreeB"}, {"af3c3", "thrasdfeeB"}, {"fec33", "threfdeB"}, {NULL, NULL} }; int main(int argc, char *argv[]) { int i, im5, children = 0; int pid = fork(); for (i = 0; s[i].s2; i++) { im5 = 0; switch (pid) { case -1: { printf("Error\n"); exit(255); } case 0: { printf("%s -> %s\n", s[i].s1, s[i].s2); if (i==5) im5 = 1; printf("%d\n", im5); sleep(i); exit(1); } default: { // Here is where I need to sleep the parent until chilren < 5 // so where do i decrement children so that it gets modified in the parent process? while(children > 5) sleep(1); children++; pid = fork(); } } } return 1; }

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  • Rails 3.1 assets not recognizing new images uploaded by rmagick until server restart

    - by Mr_Nizzle
    I have my Rails 3.1.0 application running with passenger in production environment and I have a section where the application allows the user to change his profile picture so I upload the image using an ajax uploader and in my controller I upload the file and generate different sizes for the image with rmagick then I render the new image with an image_tag but the application won't show the image till I restart the server. What I get is No route matches [GET] "assets/path/to/image.png" If I restart the server It will show the image, but obviously I can't be restarting the server every once a user uploads a new image. How can I solve the keeping the assets working the right way?

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  • Entry Level Programming Jobs with Applied Math Degree

    - by Mark
    I am about to finish my B.Sc. in Applied Math. I started out in CS a few years back had a bit of a change of heart and decided to go the math route. Now that I am looking for career options finishing up and I'm just wonder how my Applied Math degree will look when applying for programming jobs. I have taken CS courses in C++/Java/C and done 2 semester of Scientific Computing with MATLAB/Mathematica and the like, so I feel like i at least know how to program. Of course I am lacking some of the theoretical courses on the CS. I'd very much like to know how I stack up for a programming job as a math major. Thanks.

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  • how to specify the file path in rails over Mongrel web server

    - by erwin
    hi, I have a request to load a swf file, flaMovie.swf from rails. The swf file is located the directory /home/user1/railsproj/flash. I have the code index.rhtml under view directory to show the .swf file, ID=flaMovie WIDTH=250 HEIGHT=250 When I ran the code, I got the error, ActionController::RoutingError (No route matches "/home/user1/railsproj/flash/flaMovie.swf" with {:method=:get}): /vendor/rails/actionpack/lib/action_controller/routing.rb:1441:in recognize_path' /vendor/rails/actionpack/lib/action_controller/routing.rb:1424:inrecognize' /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:170:in handle_request' /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:115:indispatch' /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:126:in dispatch_cgi' /vendor/rails/actionpack/lib/action_controller/dispatcher.rb:9:indispatch' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:76:in process' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/../lib/mongrel/rails.rb:74:insynchronize' My rails project is located in /home/user1/railsproj and the web server is Mongrel web server. How to specify the path in the rhtml file so that Mongrel server is able to locate the file? Thanks a lot,

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  • Mocking View with RhinoMocks

    - by blu
    We are using MVP (Supervising Controller) for ASP.NET WebForms with 3.5 SP1. What is the preferred way to check the value of a view property that only has the a set operation with RhinoMocks? Here is what we have so far: var service = MockRepository.GenerateStub<IFooService>(); // stub some data for the method used in OnLoad in the presenter var view = MockRepository.GenerateMock<IFooView>(); var presenter = new FooPresenter(view, service); view.Raise(v => v.Load += null, this, EventArgs.Empty); Assert.IsTrue(view.Bars.Count == 10); // there is no get on Bars Should we use Expects or another way, any input would be great. Thanks Update based on Darin Dimitrov's reply. var bars = new List<Bar>() { new Bar() { BarId = 1 } }; var fooService = MockRepository.GenerateStub<IFooService>(); // this is called in OnLoad in the Presenter fooService.Stub(x => x.GetBars()).Return(bars); var view = MockRepository.GenerateMock<IFooView>(); var presenter = new FooPresenter(view, fooService); view.Raise(v => v.Load += null, this, EventArgs.Empty); view.AssertWasCalled(x => x.Bars = bars); // this does not pass This doesn't work. Should I be testing it this way or is there a better way?

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  • Disposing of Objects with long living dependencies

    - by Ray Booysen
    public class ABC { public ABC(IEventableInstance dependency) { dependency.ANewEvent += MyEventHandler; } private void MyEventHandler(object sender, EventArgs e) { //Do Stuff } } Let us say that an instance of ABC is a long living object and that my dependency is an even longer running object. When an instance of ABC needs to be cleaned up, I have two options. One I could have a Cleanup() method to unsubscribe from the ANewEvent event or I could implement IDisposable and in the Dispose unwire the event. Now I have no control over whether the consumer will call the dispose method or even the Cleanup method should I go that route. Should I implement a Finaliser and unsubscribe then? It feels dirty but I do not want hanging instances of ABC around. Thoughts?

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  • Rails "Load more..." instead of pagination.

    - by Joseph Silvashy
    I have a list of elements, and I've been using will_paginate up until now, but I'd like to have something like "load more..." at the bottom of the list. Is there an easy way to accomplish this using will_paginate or do I need to resort to some other method here? From what I know this is a better route anyhow because then I don't need a SQL count of the records. And it really doesn't matter if there are like 9,847 pages, nobody would need the records beyond the first couple pages anyhow.

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  • How to generate a key for a group entity?

    - by user246114
    Hi, I'm trying to make a group entity. Something like: class User { } class UserColor { } ... Key key = new KeyFactory.Builder( User.class.getSimpleName(), username). .addChild(UserColor.class.getSimpleName(), ???).getKey(); I know the unique username up-front to use for the key of the User object. But I just want app engine to generate a random unique value for the key value of the UserColor instance. I think this is described here, but I don't understand their wording: http://code.google.com/appengine/docs/java/datastore/transactions.html To create an object with a system-generated numeric ID and an entity group parent, you must use an entity group parent key field (such as customerKey, above). Assign the key of the parent to the parent key field, then leave the object's key field set to null. When the object is saved, the datastore populates the key field with the complete key, including the entity group parent. and this is their example: @Persistent @Extension(vendorName="datanucleus", key="gae.parent-pk", value="true") private Key customerKey; but I don't understand - should UserColor look like this then?: class UserColor { @Persistent @Extension(vendorName="datanucleus", key="gae.parent-pk", value="true") private Key mKeyParent; @Primary private Key mKey; // leave null } ... Key keyParent = new KeyFactory.Builder( User.class.getSimpleName(), username); UserColor uc = new UserColor(); uc.setKeyParent(keyParent); pm.makePersistent(uc); // now generated for me automatically? is that correct? Using this method, I should be able to use a User and a UserColor object in a transaction together, right? Thanks

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  • Encoding h.264 with libavcodec/x264

    - by Leviathan
    I am attempting to encode video using libavcodec/libavformat. I'm trying to change the standard output-example.c from ffmpeg source. The AVI file is created on the disk, but the only sound is encoded. I tried adding a lot of options for x264 from here. All the other codecs works fine, mpeg2, mpeg4, mjpeg, xvid. In addition to specifying the parameters x264, I also set the codec to AVOutputFormat structure. That's all I've done. AVOutputFormat *pOutFormat; // in header file av_register_all(); AVCodec *codec = avcodec_find_encoder_by_name("libx264"); pOutFormat = guess_format("avi", NULL, NULL); pOutFormat->video_codec = codec->id; The debug output of my application: Output #0, mp4, to 'D:\1.avi': Stream #0.0: Video: libx264, yuv420p, 320x240, q=10-51, 500 kb/s, 90k tbn, 25 tbc Stream #0.1: Audio: aac, 44100 Hz, 1 channels, s16, 128 kb/s [libx264 @ 0x694010]using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 [libx264 @ 0x694010]bitrate tolerance too small, using .01 [libx264 @ 0x694010]profile Main, level 2.0 [libx264 @ 0x694010]frame I:150 Avg QP:14.76 size: 2534 [libx264 @ 0x694010]mb I I16..4: 75.9% 0.0% 24.1% [libx264 @ 0x694010]final ratefactor: 17.57 [libx264 @ 0x694010]coded y,uvDC,uvAC intra: 42.7% 92.4% 47.4% [libx264 @ 0x694010]i16 v,h,dc,p: 11% 14% 2% 73% [libx264 @ 0x694010]i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 18% 29% 5% 8% 10% 3% 3% 2% [libx264 @ 0x694010]kb/s:506.79

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  • Grails - Recursive computing call "StackOverflowError" and don't update on show

    - by Kedare
    Hello, I have a little problem, I have made a Category domain on Grails, but I want to "cache" the string representation on the database by generating it when the representation field is empty or NULL (to avoid recursive queries at each toString), here is the code : package devkedare class Category { String title; String description; String representation; Date dateCreated; Date lastUpdate; Category parent; static constraints = { title(blank:false, nullable:false, size:2..100); description(blank:true, nullable:false); dateCreated(nullable:true); lastUpdate(nullable:true); autoTimestamp: true; } static hasMany = [childs:Category] @Override String toString() { if((!this.representation) || (this.representation == "")) { this.computeRepresentation(true) } return this.representation; } String computeRepresentation(boolean updateChilds) { if(updateChilds) { for(child in this.childs) { child.representation = child.computeRepresentation(true); } } if(this.parent) { this.representation = "${this.parent.computeRepresentation(false)}/${this.title}"; } else { this.representation = this.title } return this.representation; } void beforeUpdate() { this.computeRepresentation(true); } } There is 2 problems : It don't update the representation when the representation if NULL or empty and toString id called, it only update it on save, how to fix that ? On some category, updating it throw a StackOverflowError, here is an example of my actual category table as CSV : Uploaded the csv file here, pasting csv looks buggy: http://kedare.free.fr/Dist/01.csv Updating the representation works everywhere except on "IT" that throw a StackOverlowError (this is the only category that has many childs). Any idea of how can I fix those 2 problems ? Thank you !

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  • Is it possible to read data that has been separately copied to the Android sd card without having ro

    - by icecream
    I am developing an application that needs to access data on the sd card. When I run on my development device (an odroid with Android 2.1) I have root access and can construct the path using: File sdcard = Environment.getExternalStorageDirectory(); String path = sdcard.getAbsolutePath() + File.separator + "mydata" File data = new File(path); File[] files = data.listFiles(new FilenameFilter() { @Override public boolean accept(File dir, String filename) { return filename.toLowerCase().endsWith(".xyz"); }}); However, when I install this on a phone (2.1) where I do not have root access I get files == null. I assume this is because I do not have the right permissions to read the data from the sd card. I also get files == null when just trying to list files on /sdcard. So the same applies without my constructed path. Also, this app is not intended to be distributed through the app store and is needs to use data copied separately to the sd card so this is a real use-case. It is too much data to put in res/raw (I have tried, it did not work). I have also tried adding: <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> to the manifest, even though I only want to read the sd card, but it did not help. I have not found a permission type for reading the storage. There is probably a correct way to do this, but I haven't been able to find it. Any hints would be useful.

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  • Spring Stripes framework problem

    - by ali
    I am new to stripes and am attempting to integrate spring into stripes In the following code : public class ContactFormActionBeanTest { private static MockServletContext mockServletContext; private static MockHttpSession mockSession; @BeforeClass public static void setup() throws Exception { mockServletContext = new MockServletContext("webmail"); Map<String,String> params = new HashMap<String,String>(); params.put("ActionResolver.Packages", "stripesbook.action"); params.put("Extension.Packages", "stripesbook.ext," + "net.sourceforge.stripes.integration.spring"); mockServletContext.addFilter(StripesFilter.class, "StripesFilter", params); mockServletContext.setServlet(DispatcherServlet.class, "DispatcherServlet", null); mockSession = new MockHttpSession(mockServletContext); mockServletContext.addInitParameter("contextConfigLocation", "/WEB-INF/applicationContext-test.xml"); ContextLoaderListener springContextLoader = new ContextLoaderListener(); springContextLoader.contextInitialized( new ServletContextEvent(mockServletContext)); // Load mock user MockRoundtrip trip = new MockRoundtrip(mockServletContext, MockDataLoaderActionBean.class, mockSession); trip.execute(); // Login mock user trip = new MockRoundtrip(mockServletContext, LoginActionBean.class, mockSession); trip.setParameter("username", "freddy"); trip.setParameter("password", "nadia"); trip.execute("login"); } I get null in springContextLoader ContextLoaderListener springContextLoader = new ContextLoaderListener(); and test fails. Am I missing something? I am using eclipse with maven. Also when I try to deploy it for tomcat 6.0 I get following warnings: WARN net.sourceforge.stripes.util.ResolverUtil - Could not examine class 'stripesbook/ext/ContactFormatter.class' due to a java.lang.UnsupportedClassVersionError with message: Bad version number in .class file (unable to load class stripesbook.ext.ContactFormatter) I have checked to be sure that I am compiling with Java 5(set JDK compiler to 1.5) instead of 1.6 (Java 6); but didn't work out for me and still have problems running spring-stripes integrated project.

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  • Howto allow "Illegal characters in path" ?

    - by hbruce
    I have a MVC.NET application with one route as follows: routes.MapRoute("member", "member/{id}/{*name}", new { controller = "member", action = "Details", id = "" }, new { id = @"\d+" }); Thus, a link could be something like this: http://domain/member/123/any_kind_of_username This works fine in general but if the path contains illegal characters (e.g. a double qoute: http://domain/member/123/my_"user"_name) I get a "System.ArgumentException: Illegal characters in path." After much googling the best suggestions seems to be to make sure that the url doesn't contain any such characters. Unfortunately, that is out of my control in this case. Is there a way to work around this?

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  • How to make this into a self contained jQuery plugin? Works inline.

    - by Jannis
    Hi, I have been trying to make this to be a little jQuery plugin that I can reuse in the future without having to write the following into my actions.js file in full. This works when loaded in the same file where I set the height using my variable tallest. var tallest = null; $('.slideshow img').each(function(index) { if ($(this).height() >= tallest ) { tallest = $(this).height(); } }); $('.slideshow').height(tallest); This works and will cycle through all the items, then set the value of tallest to the greatest height found. The following however does not work: This would be the plugin, loaded from its own file (before the actions.js file that contains the parts using this): (function($){ $.fn.extend({ tallest: function() { var tallest = null; return this.each(function() { if ($(this).height() >= tallest ) { tallest = $(this).height(); } }); } }); })(jQuery); Once loaded I am trying to use it as follows: $('.slideshow img').tallest(); $('.slideshow').height(tallest); However the above 2 lines return an error of 'tallest is undefined'. How can I make this work? Any ideas would be appreciated. Thinking about this even more the perfect usage of this would be as follows: $('.container').height(tallest('.container item')); But I wouldn't even know where to begin to get this to work in the manner that you pass the object to be measured into the function by adding it into the brackets of the function name.. Thanks for reading, Jannis

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  • T4MVC not generating an action

    - by Maslow
    I suspected there was some hidden magic somewhere that stopped what looks like actual method calls all over the place in T4MVC. Then I had a view fail to compile, and the stackTrace went into my actual method. [Authorize] public string Apply(string shortName) { if (shortName.IsNullOrEmpty()) return "Failed alliance name was not transmitted"; if (Request.IsAuthenticated == false || User == null || User.Identity == null) return "Apply authentication failed"; Models.Persistence.AlliancePersistance.Apply(User.Identity.Name, shortName); return "Applied"; } So this method isn't generating in the template after all. <%=Ajax.ActionLink("Apply", "Apply", new RouteValueDictionary() { { "shortName", item.Shortname } }, new AjaxOptions() { UpdateTargetId = "masterstatus" })%> <%=Html.ActionLink("Apply",MVC.Alliance.Apply(item.Shortname),new AjaxOptions() { UpdateTargetId = "masterstatus" }) %> The second method threw an exception on compile because the method Apply in my controller has an [Authorize] attribute so that if someone that isn't logged on clicks this, they get redirected to login, then right back to this page. There they can click on apply again, this time being logged in. And yes I realize one is Ajax.ActionLink while the other is Html.ActionLink I did try them both with the T4MVC version.

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  • How to loop video using NetStream in Data Generation Mode

    - by WesleyJohnson
    I'm using a NetStream in Data Generation Mode to play an embeded FLV using appendBytes. When the stream is finished playing, I'd like to loop the FLV file. I'm not sure how to achieve this. Here is what I have so far (this isn't a complete example): public function createBorderAnimation():void { // Load the skin image borderAnimation = Assets.BorderAnimation; // Convert the animation to a byte array borderAnimationBytes = new borderAnimation(); // Initialize the net connection border_nc = new NetConnection(); border_nc.connect( null ); // Initialize the net stream border_ns = new NetStream( border_nc ); border_ns.client = { onMetaData:function( obj:Object ):void{ trace(obj); } } border_ns.addEventListener( NetStatusEvent.NET_STATUS, border_netStatusHandler ); border_ns.play( null ); border_ns.appendBytes( borderAnimationBytes ); // Initialize the animation border_vd = new Video( 1024, 768 ); border_vd.attachNetStream( border_ns ); // Add the animation to the stage ui = new UIComponent(); ui.addChild( DisplayObject( border_vd ) ); grpBackground.addElement( ui ); } protected function border_netStatusHandler( event:NetStatusEvent ):void { if( event.info.code == "NetStream.Buffer.Flush" || event.info.code == "NetStream.Buffer.Empty" ) { border_ns.appendBytesAction( NetStreamAppendBytesAction.RESET_BEGIN ); border_ns.appendBytes( borderAnimationBytes ); border_ns.appendBytesAction( NetStreamAppendBytesAction.END_SEQUENCE ); } } This will loop the animation, but it starts chewing up memory like crazy. I've tried using NetStream.seek(0) and NetStream.appendBytesAction( NetStreamAppendBytesAction.RESET_SEEK ), but then I'm not sure what to do next. If you just try to call appendBytes again after that, it doesn't work, presumably because I'm appending the full byte array which has the FLV header and stuff? I'm not very familiar with how that all works. Any help is greatly appreciated.

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  • GCC - How to realign stack?

    - by psihodelia
    I try to build an application which uses pthreads and __m128 SSE type. According to GCC manual, default stack alignment is 16 bytes. In order to use __m128, the requirement is the 16-byte alignment. My target CPU supports SSE. I use a GCC compiler which doesn't support runtime stack realignment (e.g. -mstackrealign). I cannot use any other GCC compiler version. My test application looks like: #include <xmmintrin.h> #include <pthread.h> void *f(void *x){ __m128 y; ... } int main(void){ pthread_t p; pthread_create(&p, NULL, f, NULL); } The application generates an exception and exits. After a simple debugging (printf "%p", &y), I found that the variable y is not 16-byte aligned. My question is: how can I realign the stack properly (16-byte) without using any GCC flags and attributes (they don't help)? Should I use GCC inline Assembler within this thread function f()?

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  • problem parsing with XMLReader (using ReadSubTree)

    - by no9
    Hello. Im trying to build a simple XML to Controls parser in my CF application. In the code below the string im trying to parse looks like this: "<Panel><Label>Text1</Label><Label>Text2</Label></Panel>" The result i want with this code would be a Panel with two labels. But the problem is when the first Label is parsed the subreader.Read() returns false in the ParsePanelElementh method, and so it falls out of while statement. Since im new into XMLReader i must be missing something very simple. Any help would be apreciated ! peace. static class XMLParser { public static Control Parse(string aXmlString) { XmlReader reader = XmlReader.Create(new StringReader(aXmlString)); return ParseXML(reader); } public static Control ParseXML(XmlReader reader) { using (reader) { while (reader.Read()) { if (reader.NodeType == XmlNodeType.Element) { if (reader.LocalName == "Panel") { return ParsePanelElement(reader); } if (reader.LocalName == "Label") { return ParseLabelElement(reader); } } } } return null; } private static Control ParsePanelElement(XmlReader reader) { var myPanel = new Panel(); XmlReader subReader = reader.ReadSubtree(); while (subReader.Read()) { Control subControl = ParseXML(subReader); if (subControl != null) { myPanel.Controls.Add(subControl); }; } return myPanel; } private static Control ParseLabelElement(XmlReader reader) { reader.Read(); var myString = reader.Value as string; var myLabel = new Label(); myLabel.Text = myString; return myLabel; } }

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  • MyMessage<T> throws an exception when calling XmlSerializer

    - by Arthis
    I am very new to nservicebus. I am using version 3.0.1, the last one up to date. And I wonder if my case is a normal limitation of NSB, I am not aware of. I have an asp.net MVC application, I am trying to setup and in my global.asax, I have the following : var configure = Configure.WithWeb() .DefaultBuilder() .ForMvc() .XmlSerializer(); But I have an error with the XmlSerializer when dealing with one of my object: [Serializable] public class MyMessage<T> : IMessage { public T myobject { get; set; } } I pass trough : XmlSerializer() instance.Initialize(types); this.InitType(type, moduleBuilder); this.InitType(info2.PropertyType, moduleBuilder); and then when dealing With T, string typeName = GetTypeName(t); typename is null and the following instruction : if (!nameToType.ContainsKey(typeName)) ends in error. null value not allowed. Is this some limitations to Nservicebus, or am I messing something up?

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  • Learning Ruby on Rails

    - by Ethan Gunderson
    As it stands now I'm a Java and C# developer, but the more and more I look at Ruby on Rails, the more I really want to learn it. What have you found to be the best route to learn RoR? Would it be easier to develop on Windows, or should I just run a virtual machine with linux? Is there an ide that can match the robustness of Visual Studio? Any programs to develop that give a good overhead of what to do? Any good books? Seriously, any tips/tricks/rants would be awesome.

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  • how to download a file from remote server usingh asp.net

    - by ush
    The below code works fine for downloading a file from a current pc.plz suggest me how to download it from remote server using ip address or any method protected void Button1_Click(object sender, EventArgs e) { const string fName = @"C:\ITFSPDFbills\February\AA.pdf"; FileInfo fi = new FileInfo(fName); long sz = fi.Length; Response.ClearContent(); Response.ContentType = MimeType(Path.GetExtension(fName)); Response.AddHeader("Content-Disposition", string.Format("attachment; filename = {0}", System.IO.Path.GetFileName(fName))); Response.AddHeader("Content-Length", sz.ToString("F0")); Response.TransmitFile(fName); Response.End(); } public static string MimeType(string Extension) { string mime = "application/octetstream"; if (string.IsNullOrEmpty(Extension)) return mime; string ext = Extension.ToLower(); Microsoft.Win32.RegistryKey rk = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(ext); if (rk != null && rk.GetValue("Content Type") != null) mime = rk.GetValue("Content Type").ToString(); return mime; }

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  • Listing directories in Linux from C

    - by nunos
    I am trying to simulate linux command ls using linux api from c. Looking at the code it does make sense, but when I run it I get "stat error: No such file or directory". I have checked that opendir is working ok. I think the problem is in stat, which is returning -1 even though I think it should return 0. What am I missing? Thanks for your help. #include <stdio.h> #include <stdlib.h> #include <string.h> #include <dirent.h> #include <sys/stat.h> #include <errno.h> int main(int argc, char *argv[]) { DIR *dirp; struct dirent *direntp; struct stat stat_buf; char *str; if (argc != 2) { fprintf( stderr, "Usage: %s dir_name\n", argv[0]); exit(1); } if ((dirp = opendir( argv[1])) == NULL) { perror(argv[1]); exit(2); } while ((direntp = readdir( dirp)) != NULL) { if (stat(direntp->d_name, &stat_buf)==-1) { perror("stat ERROR"); exit(3); } if (S_ISREG(stat_buf.st_mode)) str = "regular"; else if (S_ISDIR(stat_buf.st_mode)) str = "directory"; else str = "other"; printf("%-25s - %s\n", direntp->d_name, str); } closedir(dirp); exit(0); }

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  • LookAndFeel not changing in Ubuntu

    - by Tom Brito
    Anyone knows Why the laf is not changing in the following code? (running in Ubuntu) import java.awt.Dialog; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JComboBox; import javax.swing.JDialog; import javax.swing.JPanel; import javax.swing.UIManager; import javax.swing.UIManager.LookAndFeelInfo; public class TEST extends JPanel { public TEST() { final LookAndFeelInfo[] lafArray = UIManager.getInstalledLookAndFeels(); String[] names = new String[lafArray.length]; for (int i = 0; i < names.length; i++) { names[i] = lafArray[i].getName(); } final JComboBox cb = new JComboBox(names); cb.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ev) { try { int index = cb.getSelectedIndex(); LookAndFeelInfo lafInfo = lafArray[index]; String lafClassName = lafInfo.getClassName(); System.out.println(lafClassName); UIManager.setLookAndFeel(lafClassName); } catch (Exception e) { e.printStackTrace(); } } }); add(cb); } public static void main(String[] args) throws Exception { System.out.println("start"); JDialog dialog = new JDialog(null, Dialog.ModalityType.APPLICATION_MODAL); dialog.setContentPane(new TEST()); dialog.pack(); dialog.setLocationRelativeTo(null); dialog.setVisible(true); dialog.dispose(); System.out.println("end"); } }

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