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  • Exception from within a finally block

    - by schrödingers cat
    Consider the following code where LockDevice() could possibly fail and throw an exception on ist own. What happens in C# if an exception is raised from within a finally block? UnlockDevice(); try { DoSomethingWithDevice(); } finally { LockDevice(); // can fail with an exception }

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  • LINQ "table" variable

    - by Cat
    I'm trying to turn a method I have right now into a more "generic" method that returns a string. Right now, the method uses a statement like this: var app = (from d in testContext.DAPPs where d.sserID == (Guid)user.ProviderUserKey select d).ToList(); I process the results of "app", add extra text etc. The piece that changes (that I need to make more "generic") is the table name (DAPPs). Is there a way I can do that, or, a better way to go around this all together?

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  • C2244 when trying to call the pow function from inline assembly

    - by schrödingers cat
    I would like to call the pow function from inline assembly. The problem is i'm getting error C2244: 'pow' : unable to match function definition to an existing declaration. I'm new to assembly so this may be a trivial question but how do i resolve this? I guess it has something to do with the compiler not beeing able to properly resolve the overload of pow. The following code fragment is causing the error: do_POW: // push first argument to the stack sub esp, size value_type fld qword ptr [ecx] fstp qword ptr [esp] // push second argument to the stack sub esp, size value_type fld qword ptr [ecx - size value_type] fstp qword ptr [esp]and pop fpu stack // call the pow function call pow sub ecx, size value_type fstp qword ptr [ecx] add esp, 2 * size value_type jmp loop_start

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  • Do you keep a code bank?

    - by calico-cat
    I've done consulting work for years and I've got code snippets in various languages lying around that I'll re-use for various projects. The collection is getting pretty large and I want to set up a code bank for myself. What code banks do people use? Do you find it helps, or is there some better way of organising my reusable code snippets? (If one does exist, I'd prefer it be open-source, accessible via a web browser, language-agnostic, and maybe colour the code the way Stackoverflow does :)

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  • Javascript does not work on IIS

    - by Cat Mitch
    I have a .NET library executing as part of our website that renders HTML to image formats. It uses the IE rendering engine, and will happily run any javascript if present to do the rendering. The problem is we just moved the code to a new server, and javascript seems to be disabled. I tried changing (briefly the Application Pools Process Model Identity from NetworkService to LocalSystem, and that worked fine. Hence it must be a permissions problem. So my questions are this: 1) What is the specific permission I need to set to allow the IE rendering engine to execute javascript, inside the IIS application pool? 2) What is the best way to enable that in my application pool? Do I just somehow set it in NetworkService, or create a new identify (how is that done?) Thanks!

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  • Highlight certain choices in a combo box

    - by calico-cat
    I've got a dropdown box with some items in it that are more popular than others, and I'd like those to have a different background colour (say, Color.AliceBlue) when the combobox is expanded. I see BackColor but is there a way to apply background colour to just a single item?

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  • Checking for DBNull throws a StrongTypingException

    - by calico-cat
    I am using a dataset to pull data from a DB. One of the fields in a row is NULL. I know this. However, the following vb.net code throws a StrongTypingException (in the autogenerated get_SomeField() method in the dataset designer): If Not IsDBNull(aRow.SomeField) Then 'do something End If According to documentation and this question it should be fine. edit: If aRow.SomeField is DBNull.Value Then also returns the same error. Argh.

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  • CoreMidi _MIDINetworkNotificationContactsDidChange symbol not found

    - by Domestic Cat
    I'm getting the following error after a crash in an iPad app that uses CoreMIDI (The * are to blank out the app name): Dyld Error Message: Symbol not found: _MIDINetworkNotificationContactsDidChange Referenced from: /var/mobile/Applications/8F08B78E-929D-4C5A-9F02-08FD5743C17F/***.app/*** Expected in: /System/Library/Frameworks/CoreMIDI.framework/CoreMIDI in /var/mobile/Applications/8F08B78E-929D-4C5A-9F02-08FD5743C17F/***.app/*** Dyld Version: 179.4 When the app launches, I listen for MIDI Network Sessions using [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(sessionDidChange:) name:MIDINetworkNotificationSessionDidChange object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(sessionDidChange:) name:MIDINetworkNotificationContactsDidChange object:nil]; Which seems to be what is causing the crash. This is after I call session = [MIDINetworkSession defaultSession]; session.enabled = YES; session.connectionPolicy = MIDINetworkConnectionPolicy_Anyone; MIDIClientCreate(CFSTR("MidiManager"), midiNotifyProc, (void*)self, &midiClientRef); This kind of looks like CoreMIDI library has not been included in the build. Problem is, it IS included in the build as a required framework. (And the deployment target is set to 4.2). I can run the build fine on my iPad and have been testing extensively with other users' iPads also with no problems whatsoever. Also, this is an update to an existing app that has had several updates already with no problems. I just double checked my deployment build and the framework is definitely included, and I just installed that build onto my iPad (with a different provisioning profile from the store) and it works fine also. What could be happening? Could it be that Xcode just did a bad build for the one I sent to Apple, or am I missing something obvious? Could I change the MIDINetworkNotificationSessionDidChange notification symbol to a literal string (@"MIDINetworkNotificationSessionDidChange") to fix things for the mean time? Thanks for any help!

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  • Automatically unsubscribe an event

    - by Cat
    Is it possible to do something like this in C#? Probably with Expressions. private void RegisterEvent(EventHandler handler, Action<EventArgs> action) { handler += action; m_toUnsubscribe.Add(handler, action); } ... in Dispose() { foreach(var pair in m_toUnsubscribe) { pair.handler -= pair.action; } }

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  • User input being limited to the alphabet in python

    - by Danger Cat
    I am SUPER new to programming and have my first assignment coming up in python. I am writing a hangman type game, where users are required to guess the word inputted from the other user. I have written most of the code, but the only problem I am having is when users have to input the word, making sure it is only limited to the alphabet. The code I have so far is : word = str.lower(raw_input("Type in your secret word! Shhhh... ")) answer = True while answer == True: for i in range(len(word)): if word[i] not in ("abcdefghijklmnopqrstuvwxyz"): word = raw_input("Sorry, words only contain letters. Please enter a word ") break else: answer = False This works while I input a few tries, but eventually will either exit the loop or displays an error. Is there any easier way to use this? We've really only covered topics up to loops in class, and break and continue are also very new to me. Thank you! (Pardon if the code is sloppy, but as I said I am very new to this....)

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  • gluNewQuadric() before opengl's initialization

    - by Schrödinger's cat
    Hello, I'm working on a c++ code that uses SDL/opengl. Is this possible to create a pointer to a quadric with 'gluNewQuadric()' before having initialized opengl with 'SDL_SetVideoMode'? The idea is to create a class with a (pointer to a) quadric class member that has to be instantiate before the 'SDL_SetVideoMode' call. This pointer is initialized in the class' constructor with a 'gluNewQuadric()' call.

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  • Do not want Form to display over other application windows

    - by Cat
    I am displaying a Form from one process by passing the Show method a window handle from another process. I only want this new Form to display above the passed Form, like a MessageBox. However, this newly launched Form appears above other application windows, despite: Setting Process.WindowStyle.Hidden to the Form-displaying process Overriding the ShowWithoutActivation and CreateParams properties of the Form. Making sure Form.TopMost is not true I have checked that the window handle is valid from the second process. Focus is not stolen, however. Process A: Pass (Form) window handle to a new Process B via the command line Process B: Display a new Form using Form.Show(anotherProcessWindowHandle)

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  • p7zip installs, but doesn't install? (7za: command not found)

    - by Noah
    I've uploaded it to /usr/local and used ./install.sh with ssh. I get the following: - installing /usr/local/man/man1/7z.1 - installing /usr/local/man/man1/7za.1 - installing /usr/local/man/man1/7zr.1 - installing /usr/local/share/doc/p7zip/README - installing /usr/local/share/doc/p7zip/ChangeLog - installing HTML help in /usr/local/share/doc/p7zip/DOCS This is what I should be getting right? However, when trying to use 7za, it's constantly telling me 'command not found'. Is there something I'm doing wrong? Some else I also have to do?

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  • How would I reset a usb hub multiplier driver?

    - by Cameron
    I have a usb port which connects a little man usb hub I got for Christmas. It worked fine to begin with however now it works on any computer other than my own. When I plug the man in it lights up and when I plug things into the man it says they have malfunctioned but when I plug them straight into tha port it's fine. Is there somesort of driver that needs to be refreshed? I have no idea how these work so please explain! I use windows 7 32bit.

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  • Use synergy with Physical KVM

    - by Mr. Man
    I am using synergy on a Linux Mint computer as the server with a Mac as the client. I also have a physical KVM switch. The problem I have is that when ever I switch the physical KVM to my Mac, synergy stops working as in the keyboard and mouse don't work with the Mac. Thanks in advance! EDIT: here are some logs: From the Mint machine: INFO: synergys.cpp,1042: Synergy server 1.3.1 on Linux 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 DEBUG: synergys.cpp,1051: opening configuration synergy.conf DEBUG: synergys.cpp,1062: configuration read successfully DEBUG: CXWindowsScreen.cpp,847: XOpenDisplay(:0.0) DEBUG: CXWindowsScreenSaver.cpp,339: xscreensaver window: 0x00000000 DEBUG: CXWindowsScreen.cpp,117: screen shape: 0,0 1024x768 DEBUG: CXWindowsScreen.cpp,118: window is 0x03800004 DEBUG: CScreen.cpp,38: opened display DEBUG: CXWindowsScreen.cpp,679: registered hotkey F12 (id=efc9 mask=0000) as id=1 NOTE: synergys.cpp,500: started server INFO: CServer.cpp,1141: screen ubuntu shape changed NOTE: CClientListener.cpp,127: accepted client connection DEBUG: CClientProxy1_0.cpp,404: received client marks-mac.local info shape=-1024,0 2304x800 NOTE: CServer.cpp,278: client mac has connected INFO: CServer.cpp,447: switch from ubuntu to mac at -1024,393 INFO: CScreen.cpp,116: leaving screen DEBUG: CXWindowsClipboard.cDEBUG: CXWindowsClipboard.cDEBUG: CXWindowsClipboard.cDEBUG: CXWindowsClipboard.cDEBUG: CXWindowsClipboard.cDEBUG: CXWinavDEBUG: CXWindowsClipboard.cDEBUG: CXWindowsClipboard.cDEBUG302)DEBUG: CXWindowsClipboard.cDEBUG: CXWindowsClipboard.cDE47DEBUG: CXWindowsClipboard.cDEBUG: CXWindowsrset=utf-8 (633), text/plain (462) DEBUG: CXWindowsClipboard.cpp,555: added fDEBUG: CXWindowsClipboard.cpp,555: added f DEBUG: CXWindCXWDEBUG: CXWindowsClipboard.cpp,555: added fDEBUG:SerDEBUG: CXWindowsClipboard.cpp,555: ed DEBUG: CXWindowsClipboard.cpp,555: added fDEBUG: CXWindowsClipboard.cpp,555owsClDEBUG: CXWindowsClipboard.cpp,555: 1DEBUG: CXWindowsClipboard.cpp,555: added fDEBUG: getDEBUG: CXWindowsClipboard.cpp,555: added f DEBUG: CXW8_STDEBUG: CXWindowsClipboard.cpp,555: added fDEBUG: CXWindowsClipboard.cpp,555: added fD textDEBUG: CXWindowsClipboard.cpp,555: added fDEBU DEBUG: CXWindowsClipboard.cpp,555: added fDEBUG: CXWindowsClipinDEBUG: CXWindowsClipboard.cpp,555:oardDEBUG: CXWindowsClipboard.cpp,555: added fDEBUG: CXWindowsClipboard.cpp,555: added fDEBUG: CXWindCXWDEBUG: CXWindowsClipboard.cpp,555: added fDEBUG:SerDEBUG: CXWindowsClipboard.cpp,555: ed DEBUG: CXWindowsClipboard.cpp,555: added fDEBUG: CXWindowsClipboard.cpp,555owsClDEBUG: CXWindowsClipboard.cpp,555: 1DEBUG: CXWindowsClipboard.cpp, s From the Mac: connecting to '192.168.3.5': 192.168.3.5:24800 connected to server entering screen leaving screen entering screen leaving screen stopped client

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  • How can I check detailed memory information on linux?

    - by user35153
    I know that I can check cpu info via cat /proc/cpuinfo and memory info via cat /proc/meminfo. but cat /proc/meminfo yiels result like : MemTotal: 66098352 kB MemFree: 329152 kB Buffers: 632432 kB Cached: 62619692 kB SwapCached: 0 kB Active: 6425444 kB Inactive: 58717276 kB SwapTotal: 1951888 kB SwapFree: 1951796 kB Dirty: 38416 kB Writeback: 0 kB AnonPages: 1890268 kB Mapped: 12624 kB Slab: 464580 kB SReclaimable: 275812 kB SUnreclaim: 188768 kB PageTables: 7524 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 35001064 kB Committed_AS: 3860248 kB VmallocTotal: 34359738367 kB VmallocUsed: 125636 kB VmallocChunk: 34359612527 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB But I want to learn info on the clock speed of the memories (in Mhz?) HOW can I get That Info ? Thnks

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  • Checking detailed memory information on Linux

    - by user35153
    I know that I can check CPU info via cat /proc/cpuinfo and memory info via cat /proc/meminfo. But cat /proc/meminfo yields results like the following: MemTotal: 66098352 kB MemFree: 329152 kB Buffers: 632432 kB Cached: 62619692 kB SwapCached: 0 kB Active: 6425444 kB Inactive: 58717276 kB SwapTotal: 1951888 kB SwapFree: 1951796 kB Dirty: 38416 kB Writeback: 0 kB AnonPages: 1890268 kB Mapped: 12624 kB Slab: 464580 kB SReclaimable: 275812 kB SUnreclaim: 188768 kB PageTables: 7524 kB NFS_Unstable: 0 kB Bounce: 0 kB CommitLimit: 35001064 kB Committed_AS: 3860248 kB VmallocTotal: 34359738367 kB VmallocUsed: 125636 kB VmallocChunk: 34359612527 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB I want to learn more about the clock speed of the memory (in Mhz?). How do I get that information?

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  • Use synergy with KVM

    - by Mr. Man
    I am using synergy on a Linux Mint server with a Mac as the client. I also have a physical KVM switch. The problem I have is that when ever I switch the physical KVM to my Mac, synergy stops working as in the keyboard and mouse don't work with the Mac. Thanks in advance!

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  • Need script to redirect STDIN & STDOUT to named pipes

    - by user54903
    I have an app that launches an authentication helper (my script) and uses STDIN/STDOUT to communicate. I want to re-direct STDIN and STDOUT from this script to two named pipes for interaction with another program. E.g.: SCRIPT_STDIN pipe1 SCRIPT_STDOUT < pipe2 Here is the flow I'm trying to accomplish: [Application] - Launches helper script, writes to helpers STDIN, reads from helpers STDOUT (example: STDIN:username,password; STDOUT:LOGIN_OK) [Helper Script] - Reads STDIN (data from app), forwards to PIPE1; reads from PIPE2, writes that back to the app on STDOUT [Other Process] - Reads from PIPE1 input, processes and returns results to PIPE2 The cat command can almost do what I want. If there were an option to copy STDIN to STDERR I could make cat do this with a command (assuming the fictitious option -e echos to STDERR rather than STDOUT): cat -e PIPE2 2PIPE1 (read from PIPE2 and write it to STDOUT, copy input, normally going to STDERR to PIPE1)

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