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  • Why does my custom component raise AVs in the IDE?

    - by Mason Wheeler
    I'm trying to write a simple component that will allow you to embed one or more SDL rendering surfaces on a Delphi window, using the SDL 1.3 APIs. It will compile and install just fine, but when I try to use the component in the form designer, it raises AVs whenever I try to access its properties in the object inspector, save the form, or delete the component, and placing one on a form then trying to run gives a linker error: it apparently can't read the DFM properly for whatever reason. The DLL can be found at http://www.libsdl.org/tmp/SDL-1.3-dll.zip and the source code to my component can be downloaded here. SDL.pas is a JEDI-SDL header file; the rest is my own code. I don't see any reason for this to raise AVs in the form designer. If I dynamically create the control at runtime I don't have any stability issues. Can anyone take a look at this and maybe provide some feedback that might help me clear it up?

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  • iPhone SDK: How to detect a row-hit while in the editing mode?

    - by Carol
    I've looked everywhere and I can't find it. I have a UITableView that contain rows of "checkmark" cells. The user clicks on a row to check/uncheck it. (It works!!!!) But I also want to allow the user to EDIT the data on that row. ... so I have an "EDIT" button at the top. The user hits it and is allowed to DELETE any rows. (That works too!!!!) But how do I also detect a "tap" on that row. Where is there some kind of a didSelectRowAtIndexPathWhileInEditMode ???? (Is that really the best way to do this: Allow "selections", and "deletions", and "editing" of each row?)

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  • Other users on my Server?

    - by Jennifer Weinberg
    I'm buying a Server from a person (that I don't know really well) and I want to make sure that the previous owner hasn't got any access anymore. It's an Ubuntu Virtual Server and I already received the admin access (via shell). How can I find out if there are still other accounts left, who are still able to access my server (e.g. with a still existing shell account, ftp or another type of user account)? And how can I delete them if these accounts exist? Best regards, Jennifer

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  • Adding ID's to google map markers

    - by Nick
    I have a script that loops and adds markers one at a time. I am trying to get the current marker to have an info window and and only have 5 markers on a map at a time (4 without info windows and 1 with) How would i add an id to each marker so that i can delete and close info windows as needed. this is the function i am using to set the marker function codeAddress(address, contentString) { var infowindow = new google.maps.InfoWindow({ content: contentString }); if (geocoder) { geocoder.geocode( { 'address': address}, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { map.setCenter(results[0].geometry.location); var marker = new google.maps.Marker({ map: map, position: results[0].geometry.location }); infowindow.open(map,marker); } else { alert("Geocode was not successful for the following reason: " + status); } }); } }

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  • Embedded Linux: Memory Fragmentation

    - by waffleman
    In many embedded systems, memory fragmentation is a concern. Particularly, for software that runs for long periods of time (months, years, etc...). For many projects, the solution is to simply not use dynamic memory allocation such as malloc/free and new/delete. Global memory is used whenever possible and memory pools for types that are frequently allocated and deallocated are good strategies to avoid dynamic memory management use. In Embedded Linux how is this addressed? I see many libraries use dynamic memory. Is there mechanism that the OS uses to prevent memory fragmentation? Does it clean up the heap periodically? Or should one avoid using these libraries in an embedded environment?

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  • Multiple Context menus in PyQt based on mouse location

    - by Nader
    I have a window with multiple tables using QTableWidget (PyQt). I created a popup menu using the right click mouse and it works fine. However, I need to create different popup menu based on which table the mouse is hovering over at the time the right mouse is clicked. How can I get the mouse to tell me which table it is hovering over? or, put in another way, how to implement a method so as to have a specific context menu based on mouse location? I am using Python and PyQt. My popup menu is developed similar to this code (PedroMorgan answer from Qt and context menu): class Foo( QtGui.QWidget ): def __init__(self): QtGui.QWidget.__init__(self, None) # Toolbar toolbar = QtGui.QToolBar() # Actions self.actionAdd = toolbar.addAction("New", self.on_action_add) self.actionEdit = toolbar.addAction("Edit", self.on_action_edit) self.actionDelete = toolbar.addAction("Delete", self.on_action_delete) # Tree self.tree = QtGui.QTreeView() self.tree.setContextMenuPolicy( Qt.CustomContextMenu ) self.connect(self.tree, QtCore.SIGNAL('customContextMenuRequested(const QPoint&)'), self.on_context_menu) # Popup Menu self.popMenu = QtGui.QMenu( self ) self.popMenu.addAction( self.actionEdit ) self.popMenu.addAction( self.actionDelete ) self.popMenu.addSeparator() self.popMenu.addAction( self.actionAdd ) def on_context_menu(self, point): self.popMenu.exec_( self.tree.mapToGlobal(point) )

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  • the name 'controlname' does not exist in the current context

    - by zohair
    Hi, I have a web application that I'm working on(ASP.NET2.0 with C#)[Using VS2005]. Everything was working fine, and all of a sudden I get the error: Error 1 The name 'Label1' does not exist in the current context and 43 others of the sort for each time that I used a control in my codebehind of the page. This is only happening for 1 page. And it's as if the codebehind isn't recognizing the controls. Another interesting thing is that the intellisense isn't picking up any of the controls either.. I have tried to clean the solution file, delete the obj file, exclude the files from the project then re-add them, close VS and restart it, and even restart my computer, but none of these have worked. Please Help. Thank you

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  • iPhone app crashed: Assertion failed function evict_glyph_entry_from_strike, file Fonts/CGFontCache.

    - by Ross
    this happened quite randomly. I didn't delete any tableview cell, the backtrace information: Assertion failed: (d->entry[identifier.glyph] == g), function evict_glyph_entry_from_strike, file Fonts/CGFontCache.c, line 810. Program received signal: “SIGABRT”. (gdb) bt #0 0x97da5972 in __kill () #1 0x97da5964 in kill$UNIX2003 () #2 0x97e38ba5 in raise () #3 0x97e4ec5c in abort () #4 0x97e3b804 in __assert_rtn () #5 0x0037fe0e in evict_glyph_entry_from_cache () #6 0x003226aa in expire_glyphs_nl () #7 0x00322645 in CGFontCacheUnlock () #8 0x00321fef in CGGlyphLockUnlock () #9 0x0240f9b7 in ripc_DrawGlyphs () #10 0x0031b0d4 in draw_glyphs () #11 0x0031a91f in CGContextShowGlyphsWithAdvances () #12 0x35814178 in WebCore::Font::drawGlyphs () #13 0x35813da5 in WebCore::Font::drawGlyphBuffer () #14 0x35813aca in WebCore::Font::drawSimpleText () #15 0x35813760 in drawAtPoint () #16 0x3581307e in -[NSString(WebStringDrawing) _web_drawAtPoint:forWidth:withFont:ellipsis:letterSpacing:includeEmoji:] () #17 0x3090d2e9 in -[NSString(UIStringDrawing) drawAtPoint:forWidth:withFont:lineBreakMode:letterSpacing:includeEmoji:] () #18 0x3090cfe3 in -[NSString(UIStringDrawing) drawAtPoint:forWidth:withFont:lineBreakMode:] () #19 0x3093d853 in -[UINavigationItemView drawText:inRect:] () #20 0x3093a96b in -[UINavigationItemButtonView drawRect:] () #21 0x3091ff61 in -[UIView(CALayerDelegate) drawLayer:inContext:] () #22 0x0060daeb in -[CALayer drawInContext:] () #23 0x0060d8f9 in backing_callback () #24 0x0060d1b4 in CABackingStoreUpdate () #25 0x0060c3cc in -[CALayer _display] () #26 0x0060bf56 in CALayerDisplayIfNeeded () #27 0x0060b3bd in CA::Context::commit_transaction () #28 0x0060b022 in CA::Transaction::commit () #29 0x006132e0 in CA::Transaction::observer_callback () #30 0x30245c32 in __CFRunLoopDoObservers () #31 0x3024503f in CFRunLoopRunSpecific () #32 0x30244628 in CFRunLoopRunInMode () #33 0x32044c31 in GSEventRunModal () #34 0x32044cf6 in GSEventRun () #35 0x309021ee in UIApplicationMain ()

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  • Reading out all actions in a Grails-Controller

    - by kenan
    Hi, i need to read out all available actions from any controller in my web-app. The reason for this is an authorization system where i need to give users a list of allowed actions. E.g.: User xyz has the authorization for executing the actions show, list, search. User admin has the authorization for executing the actions edit, delete etc. I need to read out all actions from a controller. Does anyone has an idea? Thx for any help! kenan

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  • Google Maps 3.0 - Sometimes after removing markers, they stay around...

    - by ewindsor
    Sometimes when I remove markers they stay around in a "ghost" fashion -- they are clickable but there's no more icon. This is not every time and usually only happens when I remove more than one at a time. Here's my code for removing markers: for(var i in markers) { google.maps.event.clearListeners(markers[i], "click"); markers[i].setMap(null); markers[i] = null; delete markers[i]; } The only way to guarantee that they get removed 100% of the time is to move the map to another position. Then when I move it back they are gone 100% of the time. Thanks for your help.

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  • Compilation error on a user control

    - by MikeP
    I'm stumped! We have a user control for managing account information. We use this particular control on two pages. On one page, everything works perfectly and meets our expectation. On the second page however we receive compilation errors stating that: "C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\lrpcentral\0e987bea\6719c8b6\App_Web_PageThatFails.aspx.f3d462c1.oi52bvii.0.cs(172): error CS0433: The type 'xxxx_ascx' exists in both 'c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\APPLICATIONNAME\0e987bea\6719c8b6\App_Web_xxxx.ascx.cdcab7d2.xbnvt2za.dll' and 'c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\APPLICATIONNAME\0e987bea\6719c8b6\App_Web_eix7xllr.dll' My problem is similar to Cyril's but the "delete everything from Temp" is not an option for me, and Cyril's solution does not apply since the only variable we have is contained in the designer file, which is not deployed to our production environment (we pre-compile). After reading David's answer (here) I examined my directories for circular dependency and was unable to find any. Structure: Top Level Page that works Control Directory A Page that causes the error

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  • Why is sql server giving a conversion error when submitting date.today to a datetime column?

    - by kpierce8
    I am getting a conversion error every time I try to submit a date value to sql server. The column in sql server is a datetime and in vb I'm using Date.today to pass to my parameterized query. I keep getting a sql exception Conversion failed when converting datetime from character string. Here's the code Public Sub ResetOrder(ByVal connectionString As String) Dim strSQL As String Dim cn As New SqlConnection(connectionString) cn.Open() strSQL = "DELETE Tasks WHERE ProjID = @ProjectID" Dim cmd As New SqlCommand(strSQL, cn) cmd.Parameters.AddWithValue("ProjectID", 5) cmd.ExecuteNonQuery() strSQL = "INSERT INTO Tasks (ProjID, DueDate, TaskName) VALUES " & _ " (@ProjID, @TaskName, @DueDate)" Dim cmd2 As New SqlCommand(strSQL, cn) cmd2.CommandText = strSQL cmd2.Parameters.AddWithValue("ProjID", 5) cmd2.Parameters.AddWithValue("DueDate", Date.Today) cmd2.Parameters.AddWithValue("TaskName", "bob") cmd2.ExecuteNonQuery() cn.Close() DataGridView1.DataSource = ds.Projects DataGridView2.DataSource = ds.Tasks End Sub Any thoughts would be greatly appreciated.

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  • LinkButton not firing OnClick event in Accordion

    - by lampej
    I have not been able to get the break point I have on LinkButtonDelete_Click to fire. Is there a trick to dealing with buttons inside of Accordions? Thank you. <cc1:Accordion ID="Accordion1" runat="server" DataSourceID="ObjectDataSource1" SelectedIndex="-1" RequireOpenedPane="false"> <HeaderTemplate> <asp:Label ID="LabelDisplayName" runat="server" Text='<%#Bind("FirstName") % >'></asp:Label> </HeaderTemplate> <ContentTemplate> <asp:LinkButton ID="LinkButtonDelete" runat="server" OnClick="LinkButtonDelete_Click" Text="Delete"></asp:LinkButton> ... </ContentTemplate> </cc1:Accordion> Public Sub LinkButtonDelete_Click(ByVal sender As Object, ByVal e As EventArgs) Dim button As LinkButton = CType(sender, LinkButton) ... End Sub

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  • subversion merge back to trunk

    - by Berryl
    I set up a branch several weeks ago. When some changes were made to the trunk, SVN was committing to the branch, and not the trunk. The changes were minor and applicable to the branch anyway, so I assumed this is how the branch should work. Now that the branch work is finished, I merged back the branch back to my working trunk, assuming SVN would replace the old trunk with the new branch in the repository as well. That is not the case though. My repository trunk is out of date. I would like to make the repository trunk be same as the branch and then delete the branch. How can I do this? Cheers, Berryl Note: I am using tortoise / visualvsn client.

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  • Query DNSBL or other block lists using PHP

    - by 55skidoo
    Is there any way to use PHP code to query a DNSBL (block list) provider and find out if the IP address submitted is a bad actor? I would like to take an existing IP address out of a registration database, then check whether it's a known block-listed IP address by performing a lookup on it, then if it's a blacklisted, do an action on it (such as, delete entry from registration database). Most of the instructions I have seen assume you are trying to query the blocklist via a mail server, which I can't do. I tried querying via web browser by typing in queries such as "58.64.xx.xxx.dnsbl.sorbs.net" but that didn't work.

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  • Swap unique indexed column values in database.

    - by Ramesh Soni
    I have a database table and one of the fields (not primary key) is having unique index on it. Now I want to swap values under this column for two rows. How could this be done? Two hack I know are: Delete both rows and re-insert them Update rows with some other value and swap and then update to actual value. But I don't want to go for these as they do not seem to be the appropriate solution to the problem. Could anyone help me out?

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  • STL Vectors, pointers and classes

    - by anubis9
    Hey! Let's say i have 2 classes: class Class1 { public: std::vector<CustomClass3*> mVec; public: Class1(); ~Class1() { //iterate over all the members of the vector and delete the objects } }; class InitializerClass2 { private: Class1 * mPtrToClass1; public: InitializerClass2(); void Initialize() { mPtrToClass1->mVec.push_back(new CustomClass3(bla bla parameters)); } }; Will this work? Or the memory allocated in the InitializerClass2::Initialize() method might get corrupted after the method terminates? Thanks!

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  • asp.net application install folder

    - by Maximilian Csuk
    Disclaimer: this is not a question about how to install asp.net or an application using it! Hi! I am pretty sure many of you have once installed some kind of forum, blog or CMS (mostly PHP powered applications). All of these contain a folder mostly named "install" where (after you copied the files to the webserver) point your browser to to complete the installation by entering for example database information (servername, username, password, ...). After that, most applications suggest that you delete this folder or at least change the permissions so nobody from the outside can access it anymore. Now to my question: how would you go about that in the asp.net world? I don't really like the "install folder"-approach and I thought there might be a different mechanism for .net/IIS. The person installing my application should be able to enter his database information as painless as possible, which should ultimatively be stored in the web.config file. If it makes a difference, I am using asp.net MVC. Thanks for your help!

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  • NullReferenceException in EntityFramework, how come?

    - by Mickel
    Take a look at this query: var user = GetUser(userId); var sessionInvites = ctx.SessionInvites .Include("InvitingUser") .Include("InvitedUser") .Where(e => e.InvitedUser.UserId == user.UserId) .ToList(); var invites = sessionInvites; // Commenting out the two lines below, and it works as expected. foreach (var invite in sessionInvites) ctx.DeleteObject(invite); ctx.SaveChanges(); return invites; Now, everything here executes without any errors. The invites that exists for the user are being deleted and the invites are being returned with success. However, when I then try to navigate to either InvitingUser or InvitedUser on any of the returned invites, I get NullReferenceException. All other properties of the SessionIvites returned, works fine. How come? [EDIT] Now the weird thing is, if I comment out the lines with delete it works as expected. (Except that the entities will not get deleted :S)

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  • Update User Info with restful_authentication plugin in Rails?

    - by benoror
    Hi people, I want to give the users the ability to change their account info with restful_authentication plugin in rails. I added this two methods to my users controller: def edit @user = User.find(params[:id]) end def update @user = User.find(params[:id]) # Only update password when necessary params[:user].delete(:password) if pàrams[:user][:password].blank? respond_to do |format| if @user.update_attributes(params[:user]) flash[:notice] = 'User was successfully updated.' format.html { redirect_to(@user) } format.xml { head :ok } else format.html { render :action => "edit" } format.xml { render :xml => @user.errors, :status => :unprocessable_entity } end end end Also, I copied new.html.erb to edit.html.erb. Considering that resources are already defined in routes.rb I was expecting it to work easily, bute somehow when I click the save button it calls the create method, instead of update, using a POST http request. Inmediatly after that it autocatically log out form the session. Any ideas?

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  • Specification: Use cases for CRUD

    - by Mario Ortegón
    I am writing a Product requirements specification. In this document I must describe the ways that the user can interact with the system in a very high level. Several of these operations are "Create-Read-Update-Delete" on some objects. The question is, when writing use cases for these operations, what is the right way to do so? Can I write only one Use Case called "Manage Object x" and then have these operations as included Use Cases? Or do I have to create one use case per operation, per object? The problem I see with the last approach is that I would be writing quite a few pages that I feel do not really contribute to the understanding of the problem. What is the best practice?

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  • Preventing what was/were previously copied on to my clipboard from appearing on R Console when using

    - by Bazon
    Hi all, I am having some problems with my clipboard contents when using R. When I run my scripts/commands in tinn-r, very often I would get something that I had ran earlier pasted onto my R Console instead of the command that I have just selected. To get over this, I would go to my clipboard and delete its content(text/syntax). However, the same text/syntax that I had just deleted would re-appear on my clipboard and would again appear on my R Console when trying to run a different syntax from my tinn-r. Any help would be appreciated. Bazon

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  • Xcode: code loses syntax coloring

    - by ColorMeFamous
    I find that in various situations Objective-C code in Xcode 3.1 (Leopard) can fail to get appropriate syntax coloring after typing or lose coloring that it had. This isn't just a "refresh" issue with new custom symbols -- but affects Cocoa framework symbols as well. Sometimes CMD-a to select all text on the code page will make the coloring (re)appear, sometimes double-clicking on a line to select it will work, sometimes I have to add/delete a space in a symbol to get that symbol to (re)color. Rebuilding, or closing/reopening the project may or may not work. Is this a known issue with Xcode? For something so annoying to me, I'm not finding the plentiful discussions of it on SO and elsewhere I'd expect. And is there any command to force global syntax recoloring?

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  • Binary Search Tree node removal

    - by doc
    I've been trying to implement a delete function for a Binary Search Tree but haven't been able to get it to work in all cases. This is my latest attempt: if(t->get_left() == empty) *t = *t->get_left(); else if(t->get_right() == empty) *t = *t->get_right(); else if((t->get_left() != empty) && (t->get_right() != empty)) { Node* node = new Node(t->get_data(), t->get_parent(), t->get_colour(), t->get_left(), t->get_right()); *t = *node; } t is a node and empty is just a node with nothing in it. I'm just trying to swap the values but I'm getting a runtime error. Any ideas? Thanks

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  • firefox open local link to directory with explorer

    - by raffael
    On a Website for our internal use i show links to local files and folders. the links are like this: href="file://C:/example/" href="file://C:/example/test.odt" The Problem is now that the link to the directory does open in firefox itself with a useless directory listing. Useless because you can just see the files or open them but not copy, insert, delete... The link to the file work normal and the file is opend by OpenOffice. By changing the configuration of firefox and setting the following key to false I can open the directory in with explorer.exe but for the file I have to choose the right application. network.protocol-handler.expose.file Does someone know a way to get both to work like i want? Means that the Directory is shown by explorer.exe and all files are opened by the right application. This can be by configuring Firefox or windows, changing the links, or even by writing a small program which opens all the file protocol correctly and will be used as protocol handler for the file protocol in firefox. Thanks Raffael

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