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Articles indexed Sunday May 9 2010

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  • QApplication In Non-Main Thread

    - by Boatzart
    I need to exec() a QApplication in a thread that is not main (my GUIs must be plugins that can be dynamically loaded and unloaded at runtime, so I have no access to the main thread). Does anyone know of a (relatively) painless way to hack around Qt's restriction against starting QApplication outside of main? I'm developing in Linux with Qt4 in C++ using gcc4.3.4.

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  • why is win7/ie8 favorites the start menu? [closed]

    - by Dan
    does anyone know why Win7 Pro IE8 favorites are really the programs in the start menu? I don't see the point, there are usually tons of folders here so it is hard to find internet shortcuts, and why would I want to open a program from IE? I don't like to IE but Firefox usually freezes up on Win7 after 15 minutes...so I am using IE8 more and more. any ideas? thanks

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  • Installing PygraphViz on Windows, Python 2.6

    - by jbochi
    Anybody out there has successfully installed PygraphViz on Windows? Since there is not an official release for Windows, I'm trying to build it myself, but it fails to compile. I'm not the first one to face this issue, but I could not find an answer. This is the console output: C:\Python26\Lib\site-packages\pygraphviz-0.99.1>c:\python26\python.exe setup.py install library_path=C:/Program Files/Graphviz2.26.3/lib/debug/dll include_path=C:/Program Files/Graphviz2.26.3/include/graphviz running install running build running build_py running build_ext building 'pygraphviz._graphviz' extension C:\Program Files\Microsoft Visual Studio 9.0\VC\BIN\cl.exe /c /nologo /Ox /MD /W 3 /GS- /DNDEBUG "-IC:/Program Files/Graphviz2.26.3/include/graphviz" -Ic:\python 26\include -Ic:\python26\PC /Tcpygraphviz/graphviz_wrap.c /Fobuild\temp.win32-2. 6\Release\pygraphviz/graphviz_wrap.obj graphviz_wrap.c warning: I don't know what to do with 'runtime_library_dirs': ['C:/Program Files /Graphviz2.26.3/lib/debug/dll'] error: don't know how to set runtime library search path for MSVC++ Any help would be appreciated!

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  • Change the ApplicationID of a running process from c#

    - by Nestor
    In Windows 7 we have the concept of ApplicationID, which allows (among other things) to group several icons in the task bar. How can I change the ApplicationID of a running process from c#? I'm trying to make my WinForm app's icon group with another application. I've tried using Windows API Code Pack Library, sticking the following code in my Load event... but it didn't work. Suggestions? TaskbarManager.Instance.ApplicationId = "MyAppID"; Process[] p = Process.GetProcessesByName("OtherProcess"); TaskbarManager.Instance.SetApplicationIdForSpecificWindow(p[0].MainWindowHandle, "MyAppID");

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  • Question: Using Windows 7, Unauthorized Access Exception when running my application

    - by RedEye
    My application is raising an unauthorized access error. While running my application, I try to access a directory in the following location: Application.UserAppDataPath. The Problem: It says I do not have permission to access the Application.UserAppDataPath directory Is there a way to set permissions within my application source code? Something like: Application.UserAppDataPath.SetPermissions()

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  • How can I launch an application as Administrator after a WiX MSI has completed?

    - by ray dey
    Hi there I want to launch an application with admin rights after I have completed an installation using a WiX based MSI. I can launch the application just fine, on XP but with Windows 7, it's an issue. The application has a manifest embedded in it that says it should run as administrator and I've changed the impersonate attribute in the Custom Action to "no". I can't change the execute attribute to deferred, as this only works before the InstallFinalize action and I need it after the user has clicked Finish in the MSI. This is my Custom Action: <CustomAction Id="LaunchApp" FileKey="App" ExeCommand="[Command Line Args]" Execute="immediate" Impersonate="no" Return="asyncNoWait" /> Any help on this would be appreciated. Thanks

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  • [java] How to get ALL the information from a socket

    - by raven
    Hello, I'll begin this question with the claim that I have read the java networking guide before asking you. I do not understand how to READ the socket and get all the info summed up into a string. the socket might contains more than 1 line [trying to make a chat]. Please do no refer me to any other site unless it clearly states "this exact line does this.." because I failed to understand what this code part does BufferedReader stdIn = new BufferedReader( new InputStreamReader(System.in)); String userInput; while ((userInput = stdIn.readLine()) != null) { out.println(userInput); System.out.println("echo: " + in.readLine()); } Please, I just want to make a loop that will receive information from a socket, get all the content together into one string [I also want it to know where to add another line]. Thanks allot for anyone who helps, I have been trying to get an answer from tuts for hours and just failed to understand!

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  • Windows7 Installer takes priority how to move it back during installation using C#?

    - by shahjapan
    I've a custom Action on Deployment project of .NET Applicaiton, which contains custom dialogbox to enter certain parameters, on invalid parameters I've shown MessageBox.Show - but its being hide by installer window, I tried windows forms too with Activate, TopMost, Focus,bring2front, etc serveral options but it comes by default behind the windows installer window and due to this user is not able to identify why installing process is not finishing - because actually its waiting for user to read the MessageBox and press OK. I've tried to implement IWin32Window with the handler of MsiExec Process, and shown the Messagebox but still its not working, anyone has idea ??? Here is my installer.cs function defination, public override void Install(IDictionary stateSaver)

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  • Open default browser as standard user (C++)

    - by Disco
    I'm currently using ShellExecute "open" to open a URL in the user's browser, but running into a bit of trouble in Win7 and Vista because the program runs elevated as a service. When ShellExecute opens the browser, it seems to read the "Local Admin" profile instead of the user's. So for example, if the user at the keyboard has Firefox as his default browser, it may open IE (which is the admin's default). I know that the "runas" verb can be used to elevate, but how do you do it the other way around? Is there a way to open a URL in the default browser on a standard user's desktop from a service?

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  • Cycle through windows in KDE 4 taskbar by shortcut?

    - by Gregor Müllegger
    Is there a way to cycle through the windows in the KDE 4 taskbar with a shortcut? I want to have a switch to next window function on a mouse button. Therefore Alt+Tab is not suitable because it uses a stack for the windows. This means if hitting Alt+Tab, releasing the Alt key and pressing Alt+Tab again will bring up the window I had before pressing the keys the first time. Maybe there is a solution using DBus. But I don't know how to use this.

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  • How to use pointers and pointer aritmetic

    - by booby
    : error C2064: term does not evaluate to a function taking 1 arguments : error C2227: left of '-name' must point to class/struct/union/generic type how do i fix this so this error doesn't happen for(int index = 0; index < (numStudents); index++) { if (student(index + 1)->score >= 90 ) student(index + 1)->grade = 'A'; else if (student(index + 1)->score >= 80 ) student(index + 1)->grade = 'B'; else if (student(index + 1)->score >= 70 ) student(index + 1)->grade = 'C'; else if (student(index + 1)->score >= 60 ) student(index + 1)->grade = 'D'; else student(index + 1)->grade = 'F'; }

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  • Proactively using 'lines of code' (LOC) metric in your software-development process?

    - by manuel aldana
    hi there, I find the LOC (lines of code) metric a simple but nice metric to get an overview of software codebase complexity (see also blog-entry 'implications of lines-of-code'). I wondered how many of you out there are using this metric as a centric part for retrospective (for removing unused functionality or dead code). I think creating awareness that more lines-of-code mean more complexity in maintenance and extension is valuable.

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  • Background image for a label in a gridview

    - by Zerotoinfinite
    Hi Experts, I have a gridview, under a item template I have a table, one of the row of the table look like this <td bgcolor="White" colspan="2" style="width:100%; background-image:url(bubble1.gif);"> <asp:Panel ID="pnlHistory" runat="server" ScrollBars="Auto"> <asp:Label ID="lblHistory" runat="server" Text='<%# Server.HtmlDecode(Eval("History").ToString()) %>'></asp:Label> </asp:Panel> </td> </tr> I want to display bubble image as a background, on which my text [i.e. History (coming from database)] will be displayed. Please help, it's urgent. Thanks in advance.

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  • Strange fstream problem

    - by noname
    Hi, I have really strange problem. In Visual C++ express, I have very simple code, just: #include <fstream> using namespace std; int main() { fstream file; file.open("test.txt"); file<<"Hello"; file.close(); } This same code works OK in my one project, but when I create now project and use this same lines of code, no file test.txt is created. Please, what is wrong?¨ EDIT: I expect to see test.txt in VS2008/project_name/debug - just like the first functional project does.

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  • In ASP.NET, can too many CacheDependency instances affect scalability?

    - by frankadelic
    I am building an ASP.NET application. Within each ASPX page, we are outputting inline snippets of HTML that are pulled from static text files. Similar to the example shown here: http://www.dotnetcurry.com/ShowArticle.aspx?ID=331 As in the article, we store the contents of the files in HttpRuntime.Cache with a CacheDependency pointing to the included file. For each cached file, the operating system needs to monitor a file for changes. Is this going to be a potential scalability problem? Does Windows 2008 have a maximum number of file change monitors?

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  • Binding to a collection of DependencyObjects in Silverlight 4

    - by Meik
    As of Silverlight 4 it is possible to data bind against a DependencyObject (instead of a Framework element in previous versions). So far so good, but how do I bind agains a collection of DependencyObjects. The DataContext is not passed from the ObservableCollection to the collection elements, so that the DependencyProperties of the DependencyObjects are never called (neither the changed events). Neither the DependencyObject offers SetBinding or DataContext to initialize the binding manually. Thanks for any advice here.

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  • Architecture of finding movable geotagged objects

    - by itsme
    I currently have a Postgres DB filled with approx. 300.000 data-sets of moving vehicles all over the world. My very frequently repeated query is: Give me all vehicles in a 5/10/20mile radius. Currently I spend around 600 to 1200 ms in the DB to prepare the set of located vehicle-objects. I am looking to vastly improve this time by ideally one or two orders of magnitude if possible. I am working in a Ruby on Rails 3.0beta environment if this is relevant. Any ideas how to architect the whole system to accelerate this query? Any NoSQL database able to deliver this kind of geolocation performance? I know of MongoDB working on an extension to facilitate this scenario but haven't tried it yet. Any intelligent use of Redis to achieve this? One problem with SQL-DBs here seems to be that I can't possibly use indexes because my vehicles are mostly moving around, meaning I had to constantly created DB indexes which, by itself, is probably more expensive than just doing the searching without index. Looking forward to your thoughs, Thanks!

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  • Mobile iPhone - Multiple buttons in a row

    - by Thomas
    Hello all: I'm an iPhone developer, but new to web development. I've done some basic HTML websites and made one in iWeb as well. I'm trying to branch out to actual mobile development now, so I checked out Dashcode. Anyway, I'm trying to put a Call Button, Mail Button, and Map Button in horizontal alignment. I realize that I can add a Column Layout and have two buttons in a row, but that's the most I've gotten. Any ideas? Thanks! Thomas

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