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  • How can I detect if a file is binary (non-text) in python?

    - by grieve
    How can I tell if a file is binary (non-text) in python? I am searching through a large set of files in python, and keep getting matches in binary files. This makes the output look incredibly messy. I know I could use grep -I, but I am doing more with the data than what grep allows for. In the past I would have just searched for characters greater than 0x7f, but utf8 and the like make that impossible on modern systems. Ideally the solution would be fast, but any solution will do.

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  • How can I detect if an iPhone OS device has a proximity sensor?

    - by Batgar
    The docs related to proximity sensing state that if the proximity sensing APIs are used on a device without a proximity sensor (i.e. iPod touch, iPad) they will just return as if the proximity sensor has fired. Aside from checking the [[UIDevice currentDevice].model] string and parsing for "iPhone", "iPod touch", or "iPad" is there a slicker way to determine if a proximity sensor is on a given device?

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  • Can I force the auto-generated Linq-to-SQL classes to use an OUTER JOIN?

    - by Gary McGill
    Let's say I have an Order table which has a FirstSalesPersonId field and a SecondSalesPersonId field. Both of these are foreign keys that reference the SalesPerson table. For any given order, either one or two salespersons may be credited with the order. In other words, FirstSalesPersonId can never be NULL, but SecondSalesPersonId can be NULL. When I drop my Order and SalesPerson tables onto the "Linq to SQL Classes" design surface, the class builder spots the two FK relationships from the Order table to the SalesPerson table, and so the generated Order class has a SalesPerson field and a SalesPerson1 field (which I can rename to SalesPerson1 and SalesPerson2 to avoid confusion). Because I always want to have the salesperson data available whenever I process an order, I am using DataLoadOptions.LoadWith to specify that the two salesperson fields are populated when the order instance is populated, as follows: dataLoadOptions.LoadWith<Order>(o => o.SalesPerson1); dataLoadOptions.LoadWith<Order>(o => o.SalesPerson2); The problem I'm having is that Linq to SQL is using something like the following SQL to load an order: SELECT ... FROM Order O INNER JOIN SalesPerson SP1 ON SP1.salesPersonId = O.firstSalesPersonId INNER JOIN SalesPerson SP2 ON SP2.salesPersonId = O.secondSalesPersonId This would make sense if there were always two salesperson records, but because there is sometimes no second salesperson (secondSalesPersonId is NULL), the INNER JOIN causes the query to return no records in that case. What I effectively want here is to change the second INNER JOIN into a LEFT OUTER JOIN. Is there a way to do that through the UI for the class generator? If not, how else can I achieve this? (Note that because I'm using the generated classes almost exclusively, I'd rather not have something tacked on the side for this one case if I can avoid it).

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  • How can I detect if the Solution is initializing using the DTE in a VisualStudio extension?

    - by justin.m.chase
    I am using the DTE to track when projects are loaded and removed from the solution so that I can update a custom Test Explorer extension. I then trigger a container discovery process. But when the solution is first loaded it does an asynchronous load of some projects and fires a lot of Project Added events. What I would really like to do is to ignore all of these events until the solution is done loading. I can't quite figure out the order of events such that I know for sure that this initialization process has completed. It would be really nice to be able to just query the solution object and ask it. Does anyone know if there is a property or interface or event that I can use to determine this?

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  • How can I detect collisions between two images in c#?

    - by Shane Callanan
    hope you can help me out with this one. I'm new to c# so am very inexperienced. But basically I'm trying to make a game in which certain objects fall from the sky. Some objects like feathers take a while to drop, while metal balls will drop faster. You start off with a certain amount of cash and can buy weapons of your choice to place on the ground below. Now I've never done anything to do with collisions before, so simple answers will be of much help! Here are some of the collisions that will be in the game: (Not sure if different types of collisions are coded differently) -Collision between bullets and falling objects -Collision between falling objects and the ground (which is inanimate) -Collisions between falling objects and a certain radius around another object (for example, if a weapon gives off a radiation beam starting from its centre) -Collisions between rotating objects (rotating blade) and falling objects If someone could help me with this, it would be much appreciated!

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  • Can you detect a 301 redirect with Microsoft.XMLHTTP object?

    - by dmb
    I'm using VBScript and the Microsoft.XMLHTTP object to scrape some web data. I have a list of URLs to check, but unfortunately some of them 301 redirect to others on the list, so I wind up with redundant data. Is it at all possible to make the XMLHTTP object fail on 301 redirect? Or at least cache the original response header? Or otherwise just let me know what happened? (notes: I have no control over the server I'm requesting data from; when I get new data, I could check if it's redundant, but I'd like to avoid that if possible). Any ideas would be greatly appreciated.

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  • How can I make a core-plot graph on the phone that doesn't auto-expand to fill the whole superview

    - by Robb
    I'm pretty sure I saw an example where the graph wasn't filling the whole iPhone screen, but I can't get that to happen in my app, nor in the Core-Plot Test app from Switch On The Code. I've added a subview to the original CPLayerHostingView in the sample, then changed the classes – original back to UIView, new subview to CPLayerHostingView, and I've reconnected the File's owner's view outlet to the new subview. When I create a graph with: graph = [[CPXYGraph alloc] initWithFrame: theSubviewOutlet.bounds]; … and step through the first stages of building up the layers the bounds are accurate (i.e. the same as in the .xib) however, when all the initialization is done, and the graph shows up, it fills the whole superview. Am I missing something obvious?

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  • how can a firefox extension detect content-type of the page loaded ?

    - by bosky101
    since my extension's pageload is triggered even when I view css or js files, i want to add another check that triggers my extension only when the current page's content-type is text/html . //eg: at my page load handler function onPageload(){ // only want to proceed if content-type reflects a text/html or */html page if ( contentTypeIsHtml() ){ //continue here } } what should contentTypeIsHtml() do ?

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  • possible to get table columns to auto width to fill screen?

    - by Haroldo
    I'd like to have the width of my table 100% of screen width - so flexible to different screen sizes. is it possible to have my columns automatically resize proportionately? I've tried give the td's percentage widths but this doesnt seem to work, firebug shows that the tbody isnt filling the tables width? <table class=""> <tr class="headings"> <td class="entry"> </td> <td class="calendar">Availability Calendar </td> <td class="deals">Last Minute Deals </td> <td class="ann">Announcements </td> <td class="banners">Banners </td> </tr> </table>

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  • Setting up httpd.conf / mod_rewrite to auto-load codeigniter?

    - by Walker
    I'm sorry to ask this here, as I'm sure the solution is fairly easy but for the life of my I can't setup httpd.conf on my apache server to automatically load the code_igniter files. Instead I'm having to go into the folder itself localhost/trunk/etc/etc until I get index.php - which messes with some of the relative paths (our backend coder is gone for the week so I can't ask him, but he has already setup the rewrite rules on our development server).

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  • Is there a browser-agnostic way to detect client-side script errors with Watin?

    - by Michael
    We're using WatiN to test our web portals. During the course of an E2E test, we'll occasionally see client-side script errors on the IE status bar. I'd like to chain a handler onto the script error event and record the error for later analysis and bug filing. Problem is, I don't know that there's a global script error event or how to chain into it. And if there's not a browser-agnostic way to accomplish this, I can create MyIE and MyFF subclasses but then this becomes two browser-specific questions. In essence, I'm thinking of something like this entirely made-up call: browser.ScriptEngine.SetCustomErrorHandler(LogScriptingError); ... where LogScriptErrors is my code that does the obvious. Many of our client-side scripting errors don't necessarily prevent the test from continuing (a pretty UI element didn't animate, for example, but the underlying form is still submittable), so I'd like to log the error and forge ahead in most cases.

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  • What's the best simplest way to detect a file from a directory?

    - by Nano HE
    My code like this, I looked up the open command, but I am not sure it is the simplest way or not. if #Parser.exe exist in directory of Debug { move ("bin/Debug/Parser.exe","Parser.exe"); } elsif #Parser.exe exist in directory of Release { move ("bin/Release/Parser.exe","Parser.exe"); } else { die "Can't find the Parser.exe."; } Thank you.

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  • How does the VS XAML designer know what to auto-populate certain values with?

    - by Pwninstein
    <Button Name="MyButton" Content="Test" FontStyle="Italic" /> In the above XAML definition of a button, the FontStyle property is set to Italic. The designer is somehow able to populate a list for me to choose from when I hit the = sign. How is this achieved? Before you answer, consider that the FontStyle property is, appropriately enough, of type FontStyle (which is a struct). It's not an enumeration, which would be trivial for VS to list out at design time, so how are the valid list of options chosen to be displayed? There is also a completely separate FontStyles class which contains three static fields, Italic, Normal, and Oblique which just so happen to be the three items VS provides in the drop down list. Is there some mapping going on behind the scenes between the FontStyle struct and FontStyles class, because I've looked in many places in both the object browser and in .NET Reflector and couldn't determine anything from either. Thanks!! I NEED to know!* *Not really, but it would be nice to :)

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  • After a period of time, nslookup still works, but pinging, and an auto-refeshed website, fails.

    - by Mark Hurd
    Contrary to this question this is for a dotted name (gw.localnet.au), and it doesn't happen straight away. Only after some period of time (quite a long time, possibly days). In fact this is for my ADSL router and its internal IP address which I have named within the router itself and in my Windows Server 2003 Domain Controller DNS Service. Specifically, localnet.au is a Active-Directory-backed primary domain. In fact, an ipconfig /flushdns may fix the problem, but only after a while (about the time it took me to type in this question :-) ). That doesn't explain the root cause though...

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  • How can I detect if a string contains punctuation marks at the end?

    - by Sheehan Alam
    Lets assume I have the string: "Hello I like your shoes #today...!" I am tokenizing the string by spaces: return [string componentsSeparatedByString:@" "]; So my array contains: Hello I like your shoes #today...! I want to focus on "#today...!" any word that has a # in the prefix I am changing the font color. How can I make sure that only "#today" has its font color changed? I would basically like to figure out if a word has a punctuation mark at the end, and change the color for characters before the punctuation mark.

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  • How do I detect a Word table with (horizontally) merged cells?

    - by Reuben
    When a Word table contains horizontally merged cells, accessing aTable.Columns.First or performing a For Each over aTable.Columns will result in an error. Is there a way to determine if a table contains horizontally merged cells without resulting in an error? I've read Determine if a Word cell is merged, but that is about detecting if a particular Word table cell is merged, rather than does the whole table have any merged cells.

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  • How do I change the auto complete behavior in the VS 2010 editor?

    - by pinkmuppet
    How do I stop VS 2010 (RC) from autocompleting html helpers with new object { ... } when I just want to pass in an anonymous type? Backspacing is driving me crazy. e.g., VS wants: <%=Html.ActionLink("Register", "Register", new object { controller = "Account" }) %> I know the helper is declared expecting object, which is why it does this, but can I change this behavior just for mvc helpers?

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  • How to detect crashing tabed webbrowser and handle it?

    - by David Eaton
    I have a desktop application (forms) with a tab control, I assign a tab and a new custom webrowser control. I open up about 10 of these tabs. Each one visits about 100 - 500 different pages. The trouble is that if 1 webbrowser control has a problem it shuts down the entire program. I want to be able to close the offending webbrowser control and open a new one in it's place. Is there any event that I need to subscribe to catch a crashing or unresponsive webbrowser control ? I am using C# on windows 7 (Forms), .NET framework v4 =============================================================== UPDATE: 1 - The Tabbed WebBrowser Example Here is the code I have and How I use the webbrowser control in the most basic way. Create a new forms project and name it SimpleWeb Add a new class and name it myWeb.cs, here is the code to use. using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows.Forms; using System.Security.Policy; namespace SimpleWeb { //inhert all of webbrowser class myWeb : WebBrowser { public myWeb() { //no javascript errors this.ScriptErrorsSuppressed = true; //Something we want set? AssignEvents(); } //keep near the top private void AssignEvents() { //assign WebBrowser events to our custom methods Navigated += myWeb_Navigated; DocumentCompleted += myWeb_DocumentCompleted; Navigating += myWeb_Navigating; NewWindow += myWeb_NewWindow; } #region Events //List of events:http://msdn.microsoft.com/en-us/library/system.windows.forms.webbrowser_events%28v=vs.100%29.aspx //Fired when a new windows opens private void myWeb_NewWindow(object sender, System.ComponentModel.CancelEventArgs e) { //cancel all popup windows e.Cancel = true; //beep to let you know canceled new window Console.Beep(9000, 200); } //Fired before page is navigated (not sure if its before or during?) private void myWeb_Navigating(object sender, System.Windows.Forms.WebBrowserNavigatingEventArgs args) { } //Fired after page is navigated (but not loaded) private void myWeb_Navigated(object sender, System.Windows.Forms.WebBrowserNavigatedEventArgs args) { } //Fired after page is loaded (Catch 22 - Iframes could be considered a page, can fire more than once. Ads are good examples) private void myWeb_DocumentCompleted(System.Object sender, System.Windows.Forms.WebBrowserDocumentCompletedEventArgs args) { } #endregion //Answer supplied by mo. (modified)? public void OpenUrl(string url) { try { //this.OpenUrl(url); this.Navigate(url); } catch (Exception ex) { MessageBox.Show("Your App Crashed! Because = " + ex.ToString()); //MyApplication.HandleException(ex); } } //Keep near the bottom private void RemoveEvents() { //Remove Events Navigated -= myWeb_Navigated; DocumentCompleted -= myWeb_DocumentCompleted; Navigating -= myWeb_Navigating; NewWindow -= myWeb_NewWindow; } } } On Form1 drag a standard tabControl and set the dock to fill, you can go into the tab collection and delete the pre-populated tabs if you like. Right Click on Form1 and Select "View Code" and replace it with this code. using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using mshtml; namespace SimpleWeb { public partial class Form1 : Form { public Form1() { InitializeComponent(); //Load Up 10 Tabs for (int i = 0; i <= 10; i++) { newTab("Test_" + i, "http://wwww.yahoo.com"); } } private void newTab(string Title, String Url) { //Create a new Tab TabPage newTab = new TabPage(); newTab.Name = Title; newTab.Text = Title; //create webbrowser Instance myWeb newWeb = new myWeb(); //Add webbrowser to new tab newTab.Controls.Add(newWeb); newWeb.Dock = DockStyle.Fill; //Add New Tab to Tab Pages tabControl1.TabPages.Add(newTab); newWeb.OpenUrl(Url); } } } Save and Run the project. Using the answer below by mo. , you can surf the first url with no problem, but what about all the urls the user clicks on? How do we check those? I prefer not to add events to every single html element on a page, there has to be a way to run the new urls thru the function OpenUrl before it navigates without having an endless loop. Thanks.

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  • "Use windows xp style dpi scaling" disables automatic auto-hide of taskbar on W7. Workaround?

    - by Pelle
    We noticed that on W7 with DPI set to 125% or to 100% with ("Use windows xp style dpi scaling") turned off, our fullscreen mode (which sets the client rect of our window = desktop rect of the main monitor) no longer hides the task bar like it does for other settings. (The setting can be found in the Control Panel\Appearance and Personalization\Display section after clicking on the "Set custom text size (DPI)" link) I found the following interesting article: http://www.mathies.com/weblog/?p=908 So I set out to try to work around the bug in other means than manually hiding/restoring the taskbar visibility but so far I've failed and currently believe it's a bug in W7 (and possibly vista). The following applications also fail to work properly in fullscreen mode (the taskbar is still visible): * Microsoft Visual Studio 2008 * Microsoft Word 2007 * Adobe Reader 9.1.3 These apps work (probably by hiding the task bar through the WIN32 API): * Powerpoint Slide Show I also tried creating a brand new MFC-based app and use its "SetFullScreenMode()" functionality but it fails in the same way as all other apps on the list. Does anyone know of a workaround? Thanks, Per

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