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• latex: printing a variable in roman numerals

  - by anon

  I'm typesetting in LaTeX, and I'd like to display a "variable" (in my case, a reference \ref{blah} to an item number in list) in roman rather than the default arabic. Is there an easy way to do this? Thanks for any pointers!

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• Displaying Video using a Window Handle

  - by fergs

  I'm working on a C# wrapper for Dallmeier camera's and currently have a working wrapper. I can connect to a camera via passing the window handle (in my application its a picture box handle), this is used to send video and messages. Once connected I can then send the StartLiveView command and then a live stream video will be shown in the picture box. Can someone explain how this works by just giving the window handle? And how can I grab an Image from this stream when Picturebox1.Image is null?

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• Implementing Static Libraries In iPhone

  - by socialCircus

  Hi All, I have created a static library following this link. But I am facing Problems in using the library. For reference on how to use static libraries in an iPhone project I followed this link . But I am stil struggling with the "How to implement static libraries in any other iPhone project?" question. Thank you all.

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• Can't debug code using VS 2010 beta 2

  - by Nathan W

  This is really strange and I can't seem to figure out why it won't work. I have a C# dll that is a add on for another program, the main program is not mine or a .Net app so I am starting it with Start external program in the debugging tab and and passing my program as a command line and the program starts and loads my add on however my Visual Studio debugger doesn't step into the debugger and won't hit my break points. I checked the module window and it's not even loaded in there, I used process explorer and had a look at main program and my dll was loaded into the main app. The project is set to debug, symbols to full and still nothing. I created the project in VS 2008 and it worked fine and am now trying to get this to work in VS 2010 and no go. Anyone know what could be causing this?

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• Why can't I log in with "claimid.com" as an OpenID?

  - by radu-negrila

  Hi, I need to implement a relying party for Open ID in a load balanced environment. Following the suggestions found here I have tried passing null to the OpenIdRelyingParty constructor. The results are somehow not consistent. If I use www.myopenid.com as a provider it works. If I use www.claimid.com as a provider I get the following exception: ProtocolException - No OpenID endpoint found. This exception is thrown on the CreateRequest method call even in a non balanced environment (my local workstation). Any idea what can I do to make it work for both providers ?

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• Avaudioplayer problem regarding songs

  - by Arun Sharma

  I am using avaudioplayer for playing mp3 songs. The problem is in being able to catch the instance of the player to control it i.e. Stop it, Play it etc. The code by default creates multiple instances of the same player and overlaps the songs. I am being unable to reference the player specifically. Do you have an idea as to how we can do so? Thanks Arun Sharma

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• Function parameter types in Python

  - by Leif Andersen

  Unless I'm mistaken, creating a function in python works like this def my_func(param1, param2): /*stuff*/ However, you don't actually give the types of those parameters. Also, if I remember, python is a strongly typed language, as such, it seams like python shouldn't let you pass in a parameter of a different type then the function creator expected. However, how does python know that the user of the function is passing in the proper types? Or will the program just die if it's the wrong type, assuming the function actually uses the parameter? Or do you have to specify the type/I'm missing something? Thank you.

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• Eclipse IDE Learning Curve

  - by Vladimir Georgiev

  I am a C# guy with pretty good grasp of Visual Studio IDE usage (using it since VS2003). Right now, I am doing a proof of concept app using Eclipse 3.4.1. Is there any good reference or book which describes the usage of Eclipse IDE, compared to Visual Studio. Is there any Eclipse guide for Visual Studio users :) Thanks, in advance.

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• What is WCF (and pros and cons)?

  - by user279521

  I am trying to understand what is WCF, but can't get a visual understanding of how it adds value (reading msdn does'nt help). I have worked with COM in the past, and I know about webservices. Can someone shed some light on what is WCF and its pros and cons (maybe how it relates to COM or replaces COM etc)? Links to reference web sites would also be great. Thanks

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• DefaultSchedulerService in ASP.NET application

  - by Samir P

  Hi, My project has a requirement to implement look-ahead caching i.e. triggering another request on invokation of a specific request. The following details in short the implementation - HttpModule parses the SOAPRequest and matches entry in a configuration file for look-ahead candidate. If the request matches, it prepares the Parameters dictionary and starts appropriate workflow. Single workflow runtime is used across all requests is ensured through initializing the runtime instance at Application_Start event and stored in Application Dictionary. Using persistence service and DefaultScheduler service. We can't implement windows service model, as current requirement mandates passing the SOAPRequest parameters as arguments. ManualSchedulerService is not in contention due to synchronous nature of it's actual behaviour. Still the performance is pretty bad and product team is not happy. Can anybody suggest me better solution? Thanks, Samir

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• Intersection point in silverlight/wpf

  - by Andrei Neagu

  Hello, Given a path like this one : <Path Stretch="Fill" Stroke="#FFD69436" Data="M 0,20 L 22.3,20 L 34,0 L 44.7,20 L 68,20 L 55.8,40 L 68,60 L 44.7,60 L 34,80 L 22.3,60 L 0,60 L 11.16,40 L 0,20 Z"> <Path.Fill> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <LinearGradientBrush.GradientStops> <GradientStop Color="#FFFFFF" Offset="0" /> <GradientStop Color="Orange" Offset="1" /> </LinearGradientBrush.GradientStops> </LinearGradientBrush> </Path.Fill> </Path> How can I get the point that is at the edge of this figure at any angle? Lets say that I want the intersection point between the edge of this figure and a line passing through the center of this figure, at the 30 degrees angle with the OX axe? thanks.

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• WPF TabControl Determine header Heigth?

  - by Petoj

  Lets say i have a reference to a TabControl is there any way to get the height of the headers? The reason for this is the following i have one tabcontrol and one image above it and i want the headers to be on the image.. so my idear was to write a value converter that can convert a tabcontrol to a Thickness.. and by using this i would be able to place the headers on top of the image...

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• Is there some way to access Sql server from z/OS mainframe and have the result in IBM 3270 terminal

  - by systempuntoout

  I tagged this question "impossible" because after a lot of googling, i have not find any trace\reference to a possible answer. I'm asking if there is some way\dirtytrick (possibly cheap) to access Microsoft Sql Server from z/OS mainframe (COBOL programs) and have the result in 3270 terminal emulation; i know that 3270 is a pretty old system, but in bank CED, is still very popular.

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• Int or NSInteger as object for method argument. Objective-C

  - by sergiobuj

  Hi. I'm having some trouble passing a number as an argument for a method: -(void) meth2:(int)next_int; And to call that method i need this: int next_int = 1; [self performSelectorOnMainThread:@selector(meth2:) withObject:next_int waitUntilDone:NO]; //update next_int and call meth2 again at this point i get a "pointer from integer without a cast" error, and would happen the same with a NSInteger. A NSNumber is not useful because it's immutable and i need to change the value constantly. Any Idea how can i do this? Thanks.

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• dedicate podcast website for PHP beginner

  - by justjoe

  i'm looking for a podcast topic which specially talk about beginner PHP topic, especially about PHP class and object. maybe this is too spesific but any reference is ok. btw, is there any dedicate podcast website for PHP beginner ?

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• How to convert string HH:MM to Joda Duration?

  - by Lucas T

  I have a field in a form to state the time duration of an event. Say, the event is to last 15 mins. So the field will have the following value: 00:15 If it is to last 1 hour: 01:00, etc. How can I create a Joda Duration object with the string "HH:MM"? Looking at Joda Time home page, it mentions that it is possible to create a Duration object from specified object using ConverterManager and DurationConverter respectively. My question is, how can I implement the above interfaces so that I can create a Duration object by passing the a "4:30" parameter? Thanks in advance, Lucas

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• What does it mean to "preconcat" a matrix?

  - by Brad Hein

  In reviewing: http://developer.android.com/reference/android/graphics/Canvas.html I'm wondering translate(): "preconcat the current matrix with the specified translation" -- what does this mean? I can't find a good definition of "preconcat" anywhere on the internet! The only place I can find it is in the Android Source - I'm starting to wonder if they made it up? :) I'm familiar with "concat" or concatenate, which is to append to, so what is a pre-concat?

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• How to bind DataTable to Chart series?

  - by user175908

  Hello, How to do bind data from DataTable to Chart series? I get null reference exception. I tried binding with square brackets and it did not worked either. So, how to do the binding? Thanks. P.S: I included DataGrid XAML and CS which works just fine. Converting data to List<KeyValuePair<string,int>> works good but it is kinda slow and is unnessesary trash in code. I use WPFToolkit (the latest version). XAML: <Window x:Class="BindingzTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="606" Width="988" xmlns:charting="clr-namespace:System.Windows.Controls.DataVisualization.Charting;assembly=System.Windows.Controls.DataVisualization.Toolkit"> <Grid Name="LayoutRoot"> <charting:Chart Title="Letters and Numbers" VerticalAlignment="Top" Height="400"> <charting:Chart.Series> <charting:ColumnSeries Name="myChartSeries" IndependentValueBinding="{Binding Letter}" DependentValueBinding="{Binding Number}" ItemsSource="{Binding}" /> </charting:Chart.Series> </charting:Chart> <DataGrid Name="myDataGrid" VerticalAlignment="Stretch" Margin="0,400,0,50" ItemsSource="{Binding}" AutoGenerateColumns="False"> <DataGrid.Columns> <DataGridTextColumn Header="Letter" Binding="{Binding Letter}"/> <DataGridTextColumn Header="Number" Binding="{Binding Number}"/> </DataGrid.Columns> </DataGrid> <Button Content="Generate" HorizontalAlignment="Left" Name="generateButton" Width="128" Click="GenerateButtonClicked" Height="52" VerticalAlignment="Bottom" /> </Grid> CS: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } DataTable GenerateMyTable() { var myTable = new DataTable("MyTable"); myTable.Columns.Add("Letter"); myTable.Columns.Add("Number"); myTable.Rows.Add("A", 500); myTable.Rows.Add("B", 400); myTable.Rows.Add("C", 500); myTable.Rows.Add("D", 600); myTable.Rows.Add("E", 300); myTable.Rows.Add("F", 200); return myTable; } private void GenerateButtonClicked(object sender, RoutedEventArgs e) { var myGeneratedTable = GenerateMyTable(); myDataGrid.DataContext = myGeneratedTable; myChartSeries.DataContext = myGeneratedTable; // Calling this throws "Object reference not set to an instance of an object" exception } }

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• Simplest possible table entry editing / addition / deletion web toolkit (for use with php)

  - by Dave

  Hi, i'm building a website in php and i have tables presented that i need to allow the user to: 1. add new entry (only one at a time, which should appear as a new modal overlay) 2. delete multiple selected entries from 3. edit an existing entry (only one at one time, in a view similar to 1.) 4. re-arrange entries up and down. One by one is fine. Multiple / Grouping rearrangements are not not needed what jquery / js / anything toolkit would be the SIMPLEST to work with? (of course, i should be able to work with it in php). I did try hacking away at: http://www.ericmmartin.com/projects/simplemodal/ but had a terrible time trying to get it to work on editing some existing data (had problem passing data to it).

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• Scroll to selection in an ExtJS Grid

  - by dave

  Hey, i need to be able to scroll my ExtJS grid to the current selection but have no idea how to do this. I came across a reference in a forum to an ensureVisible method but can find no information. Can anyone make any suggestions? Thanks

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• Does the Microsoft SQL Server native client support IDBAsynchNotify?

  - by Aaron Klotz

  I'm working on some OLE DB code that runs queries on MS SQL Server via ICommand::Execute. I'm converting this code to operate asynchronously by setting the DBPROPVAL_ASYNCH_INITIALIZE property on the command before executing. I'd prefer to register a IDBAsynchNotify sink so that my code can be notified of events, as opposed to polling or blocking via ISSAsynchStatus. The documentation for ICommand::Execute does not show IConnectionPointContainer as an acceptable riid parameter, but the same document, when discussing the DB_S_ASYNCHRONOUS return code, suggests that it is possible to request an IConnectionPointContainer interface that I could use to register my event sink. When I call ICommand::Execute, passing IID_IConnectionPointContainer as the riid parameter, I receive the E_NOINTERFACE error. I also tried setting the DBPROP_IConnectionPointContainer property before Execute but I received the same results. If I have to, I'll use ISSAsynchStatus, but I'd much rather use IDBAsynchNotify. Is it possible?

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• How can i display a MFC CHtmlView inside a dialog?

  - by Lothar

  I found a lot of links on the internet for this question but i don't understand their (partial) solutions. One of the main problems seems that i'm builing all dialogs by hand without dialog resource files or the Visual Studio Application Wizards. So i would need pure C++ code that i can type into my Editor. There is also some reference to a "CWebBrowser2" control, but a grep on the VC directory does not give me any results, so where can i find this?

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• How can I get the GUID from a PDB file?

  - by thoughton

  Hello, Does anyone know how to get the GUID from a PDB file? I'm using Microsoft's Debug Interface Access SDK http://msdn.microsoft.com/en-us/library/f0756hat.aspx and getting E_PDB_INVALID_SIG when passing in the GUID i expect when trying to load the PDB. I'd just like to know the GUID of the PDB so I can be certain that it's mismatching and not just a PDB that's perhaps corrupted somehow. Is there a tool that can do this? I've tried dia2dump and dumpbin, but with no joy... Many thanks, thoughton.

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• How do I get the cell value from a formula in Excel using VBA?

  - by Simon

  I have a formula in a range of cells in a worksheet which evaluate to numerical values. How do I get the numerical values in VBA from a range passed into a function? Let's say the first 10 rows of column A in a worksheet contain rand() and I am passing that as an argument to my function... public Function X(data as Range) as double for c in data.Cells c.Value 'This is always Empty c.Value2 'This is always Empty c.Formula 'This contains RAND() next end Function I call the function from a cell... =X(a1:a10) How do I get at the cell value, e.g. 0.62933645? Excel 2003, VB6

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• How to exclude series in legend (Flex)

  - by Sean Chen

  Hello, In flex charting, I want to draw something like "reference lines" which are related to specific series, therefore these lines are not independent series and should not be shown in legend. Is it possible to exclude some series from chart legend? Thanks!

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