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  • Exposing a pointer in Boost.Python

    - by Goose Bumper
    I have this very simple C++ class: class Tree { public: Node *head; }; BOOST_PYTHON_MODULE(myModule) { class_<Tree>("Tree") .def_readwrite("head",&Tree::head) ; } I want to access the head variable from Python, but the message I see is: No to_python (by-value) converter found for C++ type: Node* From what I understand, this happens because Python is freaking out because it has no concept of pointers. How can I access the head variable from Python? I understand I should use encapsulation, but I'm currently stuck with needing a non-encapsulation solution.

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  • nfs client on ubuntu 9.10, /etc/init.d/nfs-common does not exist

    - by Denali
    This seems like a trivial problem, but I can not find a solution for several days now. I am trying to configure an nfs client on ubuntu 9.10 (64 bit). All the tutorials I've read say I need to restart a few things, such as portmap, and also nfs-common. Specifically: sudo /etc/init.d/nfs-common restart However, this file (/etc/init.d/nfs-common) does not exist. sudo apt-get install nfs-common returns "nfs-common is already the newest version." When I try: sudo service nfs restart I get: nfs: unrecognized service What am I missing here? Thank you to the kind soul who can help me with this.

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  • SharpSVN and C# Problem

    - by Sam F
    When trying to add SharpSVN to my C# project, compiling with SharpSVN related calls gives me this error: FileLoadException was Unhandled Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information. What I did was add the References from the downloaded SharpSVN zip file and added the using SharpSvn; When I compile that it works fine, but when I add: string targetPath = "https://bobl/svn/ConsoleApplication1"; SvnTarget target; SvnTarget.TryParse(targetPath, out target); It breaks with that error. I've searched this error and have had no luck in finding a solution.

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  • SQL WHERE clause not returning rows when field has NULL value

    - by JohnB
    Ok, so I'm aware of this issue: When SET ANSI_NULLS is ON, all comparisons against a null value evaluate to UNKNOWN SQL And NULL Values in where clause SQL Server return Rows that are not equal < to a value and NULL However, I am trying to query a DataTable. I could add to my query: OR col_1 IS NULL OR col_2 IS NULL for every column, but my table has 47 columns, and I'm building dynamic SQL (string concatenation), and it just seems like a pain to do that. Is there another solution? I was to bring back all the rows that have NULL values in the WHERE comparison. UPDATE Example of query that gave me problems: string query = col_1 not in ('Dorothy', 'Blanche') and col_2 not in ('Zborna', 'Devereaux') grid.DataContext = dataTable.Select(query).CopyToDataTable(); (didn't retrieve rows if/when col_1 = null and/or col_2 = null)

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  • UIScrollview doesnt resize in NavigationController when rotated

    - by Icky
    Hey, I have been dealing with this issue for 2 days now, not able to find a solution. I have a navigationcontroller as a root view controller. This one pushes a UIViewcontroller which in turn has a UIScrollview I created with IB. Additionally there is the Navigation bar. My problem arises, when I rotate the IPhone to Landscape mode. In -(void) didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation I want my scrollview to take up the full width (480 px) which it doesnt. I am able to set the frame of the navigation bar to full width perfectly fine, but not the scrollview. I have read that this might be because of the autoresizing masks set in the rooviewcontroller but I have tried out a couple of solutions - none worked for me. Any ideas on how to challenge the problem? Dont know where to start looking.

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  • jQuery table drag and drop plugin within iFrame

    - by Bala
    I am using the latest version (0.5) of Table Drag and Drop plugin (http://www.isocra.com/2008/02/table-drag-and-drop-jquery-plugin/) for jQuery. I have a problem when the table with the draggable rows is inside an iframe. When I drag a row and take it to the top, the page will not scroll (even after explicitly setting scrollAmount to a positive value). Scrolling works on the same table if it is not inside an iframe. Has anyone faced this problem? Has anyone figured out a solution for this?

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  • XHR readyState = 4 but Status = 0 in Google Chrome Browser

    - by Jay
    Hello i'v got a strange Problem with an AJAX call on my site. I make a simple AJAX call to a Script on my site. But the AJAX call fails with readState=4 and Staus = 0. There's no cross domain problem because the script i want to call is on my server. $.ajax({ type:"GET", url: 'http://mydomain.com/test.php', success : function(response){ console.log(response); }, error : function(XHR){ console.log(arguments); } }); I 've googled a lot of sites but there seems to be no solution for that!

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  • Doubt in action script for Flex: getting unique elements from an ArrayCollection

    - by Nirmal Singh Raja Reegan
    Hi, I have an ArrayCollection as mentioned below. private var initDG:ArrayCollection = new ArrayCollection([ {fact: "Order #2314", appName: "AA"}, {fact: "Order #2315", appName: "BB"} {fact: "Order #2316", appName: "BB"} ... {fact: "Order #2320", appName: "CC"} {fact: "Order #2321", appName: "CC"} ]); I want to populate a ComboBox with UNIQUE VALUES of "appName" field from the ArrayCollection initDG. <mx:ComboBox id="appCombo" dataProvider="{initDG}" labelField="appName"/> One method I could think is to loop through the Array objects and for each object check and push unique appName entries into another Array. Is there any better solution available?

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  • Disable cache in Silverlight HttpWebRequest

    - by synergetic
    My Silverlight4 app is hosted in ASP.NET MVC 2 web application. I do web request through HttpWebRequest class but it gives back a result previously cached. How to disable this caching behavior? There are some links which talks about HttpWebRequest in .NET but Silverlight HttpWebrequest is different. Someone suggested to add unique dummy query string on every web request, but I'd prefer more elegant solution. I also tried the following, but it didn't work: _myHttpWebRequest.BeginGetRequestStream(new AsyncCallback(BeginRequest), new Guid()); In fact, by setting browser history settings it is possible to disable caching. See the following link: http://stackoverflow.com/questions/3027145/asp-net-mvc-with-sql-server-backend-returns-old-data-when-query-is-executed But asking a user to change browser settings is not an option for me.

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  • Android 2.0 contact groups manipulation

    - by Bao Le
    I would manipulate the contact groups in Android 2.O. My code is following: To get a list of group (with id and title): final String[] GROUP_PROJECTION = new String[] { ContactsContract.Groups._ID, ContactsContract.Groups.TITLE }; Cursor cursor = ctx.managedQuery(ContactsContract.Groups.CONTENT_URI, GROUP_PROJECTION, null, null, ContactsContract.Groups.TITLE + " ASC"); Later, on an ListView, I select a group (onClick event) and read all contacts belong to this selected group by following code: String where = ContactsContract.CommonDataKinds.GroupMembership.GROUP_ROW_ID + "=" + groupid + " AND " + ContactsContract.CommonDataKinds.GroupMembership.MIMETYPE + "='" + ContactsContract.CommonDataKinds.GroupMembership.CONTENT_ITEM_TYPE + "'"; Problem: ContactsContract.Groups._ID in the first query does not match with the ContactsContract.CommonDataKinds.GroupMembership.GROUP_ROW_ID in the second query. Any solution/suggestion? Thanks

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  • How can I use predefined formats in DOCX with POI?

    - by furtelwart
    I'm creating a docx generator with POI and would like to use predefined formats. Word includes several formats like Title, Heading 1..10 etc. These formats are predefined in every DOCX you create with Word. I would like to use them in my docx generator. I tried the following but the format was not applied: paragraph = document.createParagraph(); lastParagraph.setStyle("Heading1"); I also tried "heading 1", "heading1" and "Heading1" as style, but none of them worked. The API documentation doesn't show any details. I analysed a docx file created with Word 2007 and found out "Heading1" would be correct. Unfortunately, the style is not defined in the docx. Do I have to create this style manually? Can anyone point me to the correct solution?

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  • Intercept page request behind firewall return altered content with php and apache

    - by Matthew
    I'm providing free wifi service and need an ad to be added to all page requests. Currently I have a router forwarding all http requests to an apache server, which redirects all requests to an index.php page. The index.php page reads the request, fetches the content from the appropriate site, and edits the content to include the ad. The problem is that all images and css files etc. cannot be accessed, because when the browser tries to get the image <img src="site.com/image.jpg"> it's just redirected back to the index.php. I can change settings for the router (running dd-wrt) and the webserver (apache2 and php 5.2). Is there a solution that allows content to be edited before returning to the client, and allows css and images to be accessed?

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  • Properly handling possible System.NullReferenceException in lambda expressions

    - by Travis Johnson
    Here's the query in question return _projectDetail.ExpenditureDetails .Where(detail => detail.ProgramFund == _programFund && detail.Expenditure.User == _creditCardHolder) .Sum(detail => detail.ExpenditureAmounts.FirstOrDefault( amount => amount.isCurrent && !amount.requiresAudit) .CommittedMonthlyRecord.ProjectedEac); Table Structure ProjectDetails (1 to Many) ExpenditureDetails ExpenditureDetails (1 to Many) ExpenditureAmounts ExpenditureAmounts (1 to 1) CommittedMonthlyRecords ProjectedEac is a decimal field on the CommittedMonthlyRecords. The problem I discovered in a Unit test (albeit an unlikely event), that the following line could be null: detail.ExpenditureAmounts.FirstOrDefault( amount => amount.isCurrent && !amount.requiresAudit) My original query was a nested loop, in where I would be making multiple trips to the database, something I don't want to repeat. I've looked in to what seemed like some similar questions here, but the solution didn't seem to fit. Any ideas?

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  • Get Column Header in GridViewRow in asp.net

    - by Suryakavitha
    Hi, I am using a website and i have a gridview in that website.... I want to delete a row in that gridview by using that selected row column values and Column headers... i got the column values by using GridViewRow but i cant get that column value's Corresponding Column header.... how shall i get that Column header by using GridViewRow.... Please anyOne Tell me the solution of this.... Thanks in Advance! And My code is: int Row = Convert.ToInt16(e.RowIndex); GridViewRow Collection = GrdViewDetails.Rows[Row]; for (int i = 0; i < Collection.Cells.Count;i++) { strColumnValue = Collection.Cells[i].Text; //strColumnName=? }

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  • How To AutoScroll a DataGridView during Drag and Drop

    - by Mason
    One of the forms in my C# .NET application has multiple DataGridViews that implement drag and drop to move the rows around. The drag and drop mostly works right, but I've been having a hard time getting the DataGridViews to AutoScroll - when a row is dragged near the top or bottom of the box, to scroll it in that direction. So far, I've tried implementing a version of this solution. I have a ScrollingGridView class inheriting from DataGridView that implements the described timer, and according to the debugger, the timer is firing appropriately, but the timer code: SendMessage(Handle, WM_VSCROLL, (IntPtr)scrollDirectionInt, IntPtr.Zero); doesn't do anything as far as I can tell, possibly because I have multiple DataGridViews in the form. I also tried modifying the AutoScrollOffset property, but that didn't do anything either. Investigation of the DataGridView and ScrollBar classes doesn't seem to suggest any other commands or functions that will actually make the DataGridView scroll. Can anyone help me with a function that will actually scroll the DataGridView, or some other way to solve the problem?

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  • Load NSImage into QPixmap or QImage

    - by Thomi
    I have an NSImage pointer from a platform SDK, and I need to load it into Qt's QImage class. To make things easier, I can create a QImage from a CGImageRef by using QPixmap as an intermediate format, like this: CGImageRef myImage = // ... get a CGImageRef somehow. QImage img = QPixmap::fromMacCGImageRef(myImage).toImage(); However, I cannot find a way to convert from an NSImage to a CGImageRef. Several other people have had the same problem, but I have yet to find a solution. There is the CGImageForProposedRect method, but I can't seem to get it to work. I'm currently trying this (img is my NSImage ptr): CGImageRef ir = [img CGImageFirProposedRect:0:0:0]; Any ideas?

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  • BizTalk 2009 fault when using POP3 adapter

    - by Sergej Andrejev
    Have anybody came across a problem with POP3 adapter in BT2009? When POP3 adapter is added to locations and assigned to port following errors in windows log appear. Error 1 Faulting application name: BTSNTSvc.exe, version: 3.8.368.0, time stamp: 0x49b1dadf Faulting module name: KERNELBASE.dll, version: 6.1.7600.16385, time stamp: 0x4a5bdaae Exception code: 0xe0434f4d Fault offset: 0x00009617 Faulting process id: 0x1d2c Faulting application start time: 0x01ca459d0255429e Faulting application path: C:\Program Files\Microsoft BizTalk Server 2009\BTSNTSvc.exe Faulting module path: C:\Windows\system32\KERNELBASE.dll Report Id: 4131d61a-b190-11de-b230-0017f2bdecec Error 2 Fault bucket , type 0 Event Name: APPCRASH Response: Not available Cab Id: 0 Problem signature: P1: BTSNTSvc.exe P2: 3.8.368.0 P3: 49b1dadf P4: KERNELBASE.dll P5: 6.1.7600.16385 P6: 4a5bdaae P7: e0434f4d P8: 00009617 P9: P10: Attached files: C:\Users\sandrejev\AppData\Local\Temp\BizTalkTraceLog.bin C:\Users\sandrejev\AppData\Local\Temp\WER9C3F.tmp.appcompat.txt C:\Users\sandrejev\AppData\Local\Temp\WER9D49.tmp.WERInternalMetadata.xml C:\Users\sandrejev\AppData\Local\Temp\WERB0AC.tmp.mdmp C:\Users\sandrejev\AppData\Local\Temp\WERB2B0.tmp.WERDataCollectionFailure.txt These files may be available here: C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_BTSNTSvc.exe_5ef546265feb369cdca82e8be551ee898dc2106d_cab_1a79b2cb Analysis symbol: Rechecking for solution: 0 Report Id: e681f07b-b18f-11de-b230-0017f2bdecec Report Status: 4

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  • PropertyGrid PaintValue problem: How to remove (and paint outside) the standard rectangle?

    - by Pedery
    This might be a straightforward question, even though I haven't found an easy solution to it: I've implemented my custom UITypeEditor with the sole purpose of adding a PaintValue to bools. For the sake of the discussion, let's assume that PaintValue will either paint a checked or unchecked radiobutton. Question 1: Now, here's the problem: It seems like PaintValue automatically inserts a 20x13px rectangle after all paint code has completed. Naturally, a radiobutton inside a black rectangle is ugly. Can I easily instruct or override this rectagle not to be painted? Question 2: In this respect, is it possible to paint on top of the propertygrid's native look - meaning could I paint something in order to obscure (part of) the black line separating two grid cells vertically? The purpose of doing this would be to indicate that two values were linked, like constrained width/height to an aspect ratio.

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  • Why does my .NET Windows service not start automatically sometimes?

    - by Tomek
    Hi all, I have modified a working Windows service that had always been starting beforehand. After adding the System.Management reference it now sometimes will not start automatically. I get the following error: Service cannot be started. System.Runtime.InteropServices.COMException (0x80010002): Call was canceled by the message filter. (Exception from HRESULT: 0x80010002 (RPC_E_CALL_CANCELED)) I found another post here on SO with someone having the same issue. http://stackoverflow.com/questions/998883/why-wont-my-net-windows-service-start-automatically-after-a-reboot However, the proposed solution was to have the service start after the services it depends on have started. However, when I go to the Dependencies tab for my service, I see: Should I just use the workaround method of putting the thread to sleep, or is there a more proper way of getting this service to start correctly? Is this happening because .NET has not started before my service starts? Thanks, Tomek

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  • Easy GWT Animations

    - by brad
    I've started looking at some external GWT libraries for animations, but they all seemd a bit overkill for what i want. I'm trying to mimic JQuery Tools scrollabel plugin in GWT for a scrolling navigation (think iphone). User clicks an item, page scrolls to the child panel of that item, which may also have children that can be clicked. All I need to do is slide a div, x number of pixels backwards and forwards over some fixed rate of time The only real tutorial i've found on writing animations in GWT is 2 years old and seems a bit verbose, (managing individual frames etc...) Is there no simpler solution for easily moving a div from one position to another without requiring all the extra cruft? Forgive me but I'm coming from jQuery coding that has this built in simply and easily.

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  • Android: Easiest way to make a WebView display a Bitmap?

    - by legr3c
    I have some images that I loaded from a remote source stored in Bitmap variables and I want to display them. In addition to switching between these images the user should also be able to zoom and pan them. My first idea was to somehow pass them via an intent to the built-in gallery application but this doesn't seem to be possible. A solution that is suggested in several places is using a WebView since it already supports zooming and panning. My question is how does my Bitmap data get into the WebView? Do I have to write it to a file first, which I would have to remove again later, or is there an easier way? Or are there even better ways to accomplish my main goal, which is displaying Bitmap data as zoomable and panable images?

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  • Does Sandcastle support Entity Framework Partial Classes?

    - by ChrisHDog
    I am attempting to use Sandcastle (and Sandcastle Help File Builder) to do some "auto-documentation" of some classes I am using. The classes that are giving me trouble are some partial classes on Entity Framework items that add methods and properties to those Framework items. The triple slash comments don't appear to come through on the methods and properties created in the partial classes. I have out how to get xml documentation of the base properties using the short summary and long description fields on the .emdx editor, but that doesn't provide a solution for the items in the partial classes. Is this possible? Is it perhaps just settings that I'm not setting correctly to pick up the partial classes? Does Sandcastle do partial classes in non-Entity Framework settings? Is what I'm doing even possible (has anyone else successfully used the xml created from triple slash comments to create documentation on entity framework partial classes, and if so how did you do that)? Any assistance is appreciated

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  • Twitter oauth authorization in a pop-up instead of in main browser window

    - by niyogi
    I feel incredibly stupid for even asking this since the answer might already be under my nose but here it goes: TweetMeme has a Re-tweet twitter widget that publishers can place on their blogs. When a user clicks on the widget, it pops open a window which allows the user to authenticate themselves with twitter and then re-tweet. This seems to use some special Twitter oauth popup form factor - unless there is something fancier happening under the surface to authenticate the user. The pop-up window looks like this: http://twitpic.com/1kepcr I'd rather handle an authentication via a pop-up rather than send the user to a brand new page (for the app I'm working on) and they seem to have the most graceful solution. Thoughts on how they did this?

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  • Screen Capture Under Win7 of JOGL Applet

    - by binarybug
    Hi I'm trying to take a screen shot of an applet running inside a browser. The applet is using JOGL (OpenGL for Java) to display 3D models. (1) The screen shots always come out either black or white.The current solution uses the usual GDI calls. Screen shots of applets not running OpenGL are fine. A few examples of JOGL apps can be found here https://jogl-demos.dev.java.net/ (2) Another thing I'm trying to achieve is to get the scrollable area inside the screen shot as well. I found this code on the internet which works fine except for the 2 issues mentioned above. import win32gui as wg import win32ui as wu import win32con def copyBitMap(hWnd, fname): wg.SetForegroundWindow(hWnd) cWnd = wu.CreateWindowFromHandle(hWnd) rect = cWnd.GetClientRect() (x,y) = (rect[2] - rect[0], rect[3] - rect[1]) hsrccDc = wg.GetDC(hWnd) hdestcDc = wg.CreateCompatibleDC(hsrccDc) hdestcBm = wg.CreateCompatibleBitmap(hsrccDc, x, y) wg.SelectObject(hdestcDc, hdestcBm.handle) wg.BitBlt(hdestcDc, 0, 0, x, y, hsrccDc, rect[0], rect[1], win32con.SRCCOPY) destcDc = wu.CreateDCFromHandle(hdestcDc) bmp = wu.CreateBitmapFromHandle(hdestcBm.handle) bmp.SaveBitmapFile(destcDc, fname)

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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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