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  • Create pdf file with ghostscript

    - by kofucii
    Hello, I'm using SCO Unix, with old version of ghostscript (7.7). When I convert the postscript source file to pdf otput file, It's content is visible on the SCO machine. But when I copy the pdf file into windows, and open it with adobe acrobat, all I can see is a blank page. Does anybody have a solution to this?

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  • Minimax algorithm: Cost/evaluation function?

    - by Dave
    Hi guys, A school project has me writing a Date game in C++ (example at http://www.cut-the-knot.org/Curriculum/Games/Date.shtml) where the computer player must implement a Minimax algorithm with alpha-beta pruning. Thus far, I understand what the goal is behind the algorithm in terms of maximizing potential gains while assuming the opponent will minify them. However, none of the resources I read helped me understand how to design the evaluation function the minimax bases all it's decisions on. All the examples have had arbitrary numbers assigned to the leaf nodes, however, I need to actually assign meaningful values to those nodes. Intuition tells me it'd be something like +1 for a win leaf node, and -1 for a loss, but how do intermediate nodes evaluate? Any help would be most appreciated.

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  • Android "Trying to use recycled bitmap" error?

    - by Mike
    Hi all, I am running into a problem with bitmaps on an Android application I am working on. What is suppose to happen is that the application downloads images from a website, saves them to the device, loads them into memory as bitmaps into an arraylist, and displays them to the user. This all works fine when the application is first started. However, I have added a refresh option for the user where the images are deleted, and the process outlined above starts all over. My problem: By using the refresh option the old images were still in memory and I would quickly get OutOfMemoryErrors. Thus, if the images are being refreshed, I had it run through the arraylist and recycle the old images. However, when the application goes to load the new images into the arraylist, it crashes with a "Trying to use recycled bitmap" error. As far as I understand it, recycling a bitmap destroys the bitmap and frees up its memory for other objects. If I want to use the bitmap again, it has to be reinitialized. I believe that I am doing this when the new files are loaded into the arraylist, but something is still wrong. Any help is greatly appreciated as this is very frustrating. The problem code is below. Thank you! public void fillUI(final int refresh) { // Recycle the images to avoid memory leaks if(refresh==1) { for(int x=0; x<images.size(); x++) images.get(x).recycle(); images.clear(); selImage=-1; // Reset the selected image variable } final ProgressDialog progressDialog = ProgressDialog.show(this, null, this.getString(R.string.loadingImages)); // Create the array with the image bitmaps in it new Thread(new Runnable() { public void run() { Looper.prepare(); File[] fileList = new File("/data/data/[package name]/files/").listFiles(); if(fileList!=null) { for(int x=0; x<fileList.length; x++) { try { images.add(BitmapFactory.decodeFile("/data/data/[package name]/files/" + fileList[x].getName())); } catch (OutOfMemoryError ome) { Log.i(LOG_FILE, "out of memory again :("); } } Collections.reverse(images); } fillUiHandler.sendEmptyMessage(0); } }).start(); fillUiHandler = new Handler() { public void handleMessage(Message msg) { progressDialog.dismiss(); } }; }

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  • Qt 4.6 OpenGL GLSL

    - by Zeke
    I'm trying to find like NeHe's tutorials for Qt that are all in GLSL. Because lets face it, OpenGL in the old days are dead and Shaders are the only way now. And with Qt-4.6 they introduced the QMatrix4x4, QVector3, and the Shader classes. But I cannot find any tutorials for this. All the ones I do find, all use crappy SDL and/or GLUT (Which are just plain useless).

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  • How to setup named instances using StructureMap profiles?

    - by khaledh
    I've done quite a bit of googling and searching here on SO, but couldn't find a similar question or answer. In typical SM configuration you can add multiple named instances for a single PluginType: ForRequestedType<IFoo>() .AddInstances( x => { x.OfConcreteType<FooA>().WithName( "FooA" ); x.OfConcreteType<FooB>().WithName( "FooB" ); } ); No problem there. The problem is that I can't do the same when creating a profile. Most examples explaining how to use profiles use the For<>() method of the passed ProfileExpression: CreateProfile( "Default", p => { p.For<IFoo>().UseConcreteType<FooC>(); } ); I can't seem to find a way to add multiple named instances for the same PluginType as you can do above with regular configuration. The only other method available through ProfileExpression is Type<>(), but I'm not sure if it can be used for this purpose. Edit: I tried to use Type<>() instead of For<>() and it seems to be taking me in the right direction, but I bumped into another problem. To better explain it here's a better example of what I'm trying to do (this is what I posted to the structuremap-users group, no answer yet): ObjectFactory.Initialize( x => { x.CreateProfile( "Nissan", p => { p.Type<ICar>().Is.OfConcreteType<NewNissanCar>().WithName( "New" ); p.Type<ICar>().Is.OfConcreteType<OldNissanCar>().WithName( "Old" ); } ); x.CreateProfile( "Honda", p => { p.Type<ICar>().Is.OfConcreteType<NewHondaCar>().WithName( "New" ); p.Type<ICar>().Is.OfConcreteType<OldHondaCar>().WithName( "Old" ); } ); } ); ObjectFactory.Profile = "Nissan"; ICar newCar = ObjectFactory.GetNamedInstance<ICar>( "New" ); // -> returns NewHondaCar ICar car = ObjectFactory.GetInstance<ICar>(); // -> returns OldNissanCar So even though I set the profile to "Nissan", GetNamedInstance<>("New") returned an instance from the incorrect profile - it should've returned NewNissanCar instead of NewHondaCar. Interestingly, GetInstance<>() uses the correct profile, but because I can't pass an instance name, it returns an arbitrary concrete type from that profile that implements ICar (I guess it just returns the last concrete type added for that interface).

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  • 301 Redirect and query strings

    - by Lizard
    I am looking to create a 301 redirect based purely on a query string see b OLD URL: olddomain.com/?pc=/product/9999 New URL: newurl.php?var=yup My normal way of doing this would be redirect 301 pc=/product/9999 newurl.php?var=yup But this time I am trying to match a URL that that only contains the domain and a query string... What is the best way of doing this? Thanks

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  • Facebook Graph API: user gender

    - by Mark
    The old Facebook API provided the user sex/gender as part of the default user data. Apparently the new Graph API does not provide that information, even though the documentation says that it does. I've heard people say that you need to request special permissions to get it and other pieces of data, but I have not been successful in getting it to work. Does anyone have an example, using the Facebook Graph API, of how to get the user's gender and/or location (city/state/country/whatever)?

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  • Load image in device independent and screen independent fashion into a layout view using 1.6 SDK

    - by Mark Wigzell
    I'm having trouble getting an asset image to scale up when I load it. The new call to BitmapDrawable(Resources, BitmapDrawable) is not available on 1.6 SDK. Is there a workaround to load the BitmapDrawable the old way and then somehow manipulate it? I have tried calling setTargetDensity() to no avail. My code (which doesn't scale properly) is: ImageView iv = (ImageView)view.findViewById(R.id.image); iv.setImageDrawable(new BitmapDrawable(view.getContext().getAssets().open(path)));

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  • [Homework] Online programming editor

    - by VDVLeon
    Hi, For a school project i need to write or use a online programming editor. It is a part of a bigger project. I thought of a java application, php/html/javascript or flash. I have a couple of things i could do: Find a good working application and edit it so it works with the rest of the project Find good parts for a editor and make it working my self (syntax highlighter, auto-indent, autocompletion, etc.) Combination of those two Does anybody know a good editor or have tips for this project or a editor? Thanks for reading, Leon

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  • Java Compare Two Lists

    - by agazerboy
    Hi All, Thanks for stoping to help me :) I have a question, may be for some of you, it will be a basic question :) I have two lists ( not java lists, you can say two columns) For example **List 1** **Lists 2** milan hafil dingo iga elpha binga hafil mike meat dingo iga neeta.peeta What I want ! I want that it returns me that how many elements are same. For this example it should be 3 and it should return me similar values of both list and different values too. Should I use hashmap if yes then what method to get my result? Please help P.S: It is not a school assignment :) So if you just guide me it will be enough

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  • Easy code-golf challenges

    - by chibineku
    I am interested in trying a few code-golf problems, but of a fairly easy level as I'm only a year old in terms of programming. Simple things, but that will make me think. I am comfortable in JavaScript and PHP at the moment.

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  • web crawler needed

    - by nightcoder1
    does anybody know where i can get a free web crawler that actually works with minimal coding by me. ive googled it and can only find really old ones that dont work or openwebspider which doesnt seem to work. ideally id like to store just the web addresses and which links that page contains any suggestions? thanks

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  • Tools for conceptual website design

    - by Alex Tang
    What tools (apart from Visio) will generate visually pleasing website site maps or diagrams of a conceptual website? We want to present nice diagrams to our client, but we're unsure about where to get started—we're all coders, not designers. Visio shapes or stencils are quite old. What tools are others in the industry using?

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  • Read from multiple tables in vb.net data reader

    - by user225269
    I'm trying to read from two tables in mysql: Dim sqlcom As MySqlCommand = New MySqlCommand("Select * from mother, father where IDNO= '" & TextBox14.Text & "' ", sqlcon) -But I get this error: Column 'IDNO' in where clause is ambiguous Here is the whole code: Dim NoAcc As String Dim NoAccmod2 As String Dim NoPas As String Dim sqlcon As New MySqlConnection("Server=localhost; Database=school;Uid=root;Pwd=nitoryolai123$%^;") Dim sqlcom As MySqlCommand = New MySqlCommand("Select * from mother, father where IDNO= '" & TextBox14.Text & "' ", sqlcon) sqlcon.Open() Dim rdr As MySqlDataReader rdr = sqlcom.ExecuteReader If rdr.HasRows Then rdr.Read() NoAcc = rdr("IDNO") If (TextBox14.Text = NoAcc) Then TextBox7.Text = rdr("MOTHER") If (TextBox14.Text = NoAcc) Then TextBox8.Text = rdr("MOTHER_OCCUPATION") If (TextBox14.Text = NoAcc) Then TextBox10.Text = rdr("FATHER") If (TextBox14.Text = NoAcc) Then TextBox11.Text = rdr("FATHER_OCCUPATION") End If -Any suggestions that could help solve this problem? Or even other techniques on achieving the goal of reading data from two tables using data reader? This is a winform, not a web form

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  • Big 0 theta notation

    - by niggersak
    Can some pls help with the solution Use big-O notation to classify the traditional grade school algorithms for addition and multiplication. That is, if asked to add two numbers each having N digits, how many individual additions must be performed? If asked to multiply two N-digit numbers, how many individual multiplications are required? Suppose f is a function that returns the result of reversing the string of symbols given as its input, and g is a function that returns the concatenation of the two strings given as its input. If x is the string hrwa, what is returned by g(f(x),x)? Explain your answer - don't just provide the result!

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  • vb classic coder to android how to transition?

    - by user366654
    Hi guys. I'm a VB/vba coder and would like to start android dev. Currently I'm learning Java from scratch and. Its quite tough. I've read about oop but never actually written any OO code. Java syntax is also quite foreign but I'm getting the hang of it. My question is, which is absolutely the best transition path for a vb old dog to writing for froyo?

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  • Need msbuild file that will publish a Web Application

    - by Hal Diggs
    Has anyone had success making an msbuild file that will publish a Web Application, not the old 2.0 web site but a Web Application? This is not what I am looking for: <MSBuild Projects="eRx.Web.SecureSiteShell.csproj"   Properties="Configuration=Debug;OutDir=$(OutputFolder)\$(OutputWeb)\bin\;WebProjectOutputDir=$(OutputFolder)\$(OutputWeb)\"   Targets="ResolveReferences;_CopyWebApplication" /> I tried simply using 'targets:Publish' but I get : Skipping unpublishable project.

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  • How can I reliably check client identity whilst making DCOM calls to a C# .Net 3.5 Server?

    - by pionium
    Hi, I have an old Win32 C++ DCOM Server that I am rewriting to use C# .Net 3.5. The client applications sit on remote XP machines and are also written in C++. These clients must remain unchanged, hence I must implement the interfaces on new .Net objects. This has been done, and is working successfully regarding the implementation of the interfaces, and all of the calls are correctly being made from the old clients to the new .Net objects. However, I'm having problems obtaining the identity of the calling user from the DCOM Client. In order to try to identify the user who instigated the DCOM call, I have the following code on the server... [DllImport("ole32.dll")] static extern int CoImpersonateClient(); [DllImport("ole32.dll")] static extern int CoRevertToSelf(); private string CallingUser { get { string sCallingUser = null; if (CoImpersonateClient() == 0) { WindowsPrincipal wp = System.Threading.Thread.CurrentPrincipal as WindowsPrincipal; if (wp != null) { WindowsIdentity wi = wp.Identity as WindowsIdentity; if (wi != null && !string.IsNullOrEmpty(wi.Name)) sCallingUser = wi.Name; } if (CoRevertToSelf() != 0) ReportWin32Error("CoRevertToSelf"); } else ReportWin32Error("CoImpersonateClient"); return sCallingUser; } } private static void ReportWin32Error(string sFailingCall) { Win32Exception ex = new Win32Exception(); Logger.Write("Call to " + sFailingCall + " FAILED: " + ex.Message); } When I get the CallingUser property, the value returned the first few times is correct and the correct user name is identified, however, after 3 or 4 different users have successfully made calls (and it varies, so I can't be more specific), further users seem to be identified as users who had made earlier calls. What I have noticed is that the first few users have their DCOM calls handled on their own thread (ie all calls from a particular client are handled by a single unique thread), and then subsequent users are being handled by the same threads as the earlier users, and after the call to CoImpersonateClient(), the CurrentPrincipal matches that of the initial user of that thread. To Illustrate: User Tom makes DCOM calls which are handled by thread 1 (CurrentPrincipal correctly identifies Tom) User Dick makes DCOM calls which are handled by thread 2 (CurrentPrincipal correctly identifies Dick) User Harry makes DCOM calls which are handled by thread 3 (CurrentPrincipal correctly identifies Harry) User Bob makes DCOM calls which are handled by thread 3 (CurrentPrincipal incorrectly identifies him as Harry) As you can see in this illustration, calls from clients Harry and Bob are being handled on thread 3, and the server is identifying the calling client as Harry. Is there something that I am doing wrong? Are there any caveats or restrictions on using Impersonations in this way? Is there a better or different way that I can RELIABLY achieve what I am trying to do? All help would be greatly appreciated. Regards Andrew

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  • Add Ajax Support to Spring MVC

    - by Mark
    Hi, I would like to add ajax to an existing spring mvc 2.5 webapps. But i dont know where to start. I think spring does not support ajax integration. Does someone know how can I accomplish this? I was thinking that my ajaxrequest should be catch by the controller interface but I dont know where to start. I dont want to use any ajax library at this point but just plain old ajax approach Kindly send me links or tutorials if what I am thinking is possible please

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  • pass by reference or pass by value?

    - by Sven
    When learning a new programming language, one of the possible roadblocks you might encounter is the question whether the language is, by default, pass-by-value or pass-by-reference So here is my question to all of you, in your favorite language, how is it actually done? and what are the possible pitfalls? your favorite language can, of course, be anything you have ever played with: popular, obscure, esoteric, new, old ...

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  • Firebug not breaking on errors

    - by stormdrain
    Hi. I reinstalled Firefox today, because... whatever. I reinstalled firebug, therefully, and now when I try to use it, it's all different. I believe it is the same version I had before. In fact, I even went digging through my trash and replaced the new firebug with the one I removed with the old Firefox. They ended up being the same version (1.5.3). My issue is, when I have an error in my script somewhere, it used to be that if on the script pane of firebug, the script would break on the error, and the script page would go to the offending line, highlighted, and all was right with the world. Now, it logs the error in the console, and that's it. I've spent the better part of the last hour trying to convince myself this isn't worth an ulcer; I am losing the battle, though. I've searched Google, put ads on Craigslist, even thought about becoming a cop. There were some examples on the Firebug dox, but none of them helped. A bunch of old references to a mysterious (break on all errors) option; an option which I think I might have set by accident--there is a little red circle-slash on my pause button (that's what she said), but there the script continues, all on its own. There was a guide somewhere on the firebug pages that spoke of setting the breakpoint next to the error in the console. I, however, don't have this option for some reason. The line of code is there in the console, but no breakpoint button next to it. This, however, would not be ideal even if it worked. I liked it when I could have the script page open, and if there were errors it would jump to that line. I could try to fix it, and re-load the page. If that line was fixed, GREAT, on to the next error on the page -- which would be highlighted and ready. I would like to offer a solicitation of help. Help.

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  • DirectoryEntry to change password: Different behavior between Vista/Server2008

    - by Gnucom
    Hey everyone, On a Vista dev machine I used this code successfully to change user "Administrator" password: directoryEntry.Invoke("SetPassword", "new"); When I moved it over to my Server 2008 dev machine that code did not work, and I was forced to use the following code: directoryEntry.Invoke("ChangePassword", new object[] { "old", "new" }); My question is, why? For both cases, I created my DirectoryEntry object as such: DirectoryEntry directoryEntry = new DirectoryEntry(string.Format("WinNT://{0}/{1}", computerName, username)); Thanks! 8)

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