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  • How to monitor screen updates?

    - by user299600
    I am trying to write a program that monitors when the screen has been redrawn. Meaning if any part of any window is redrawn, then the program is notified. As far as I understand I should use a journal record hook like at http://www.vbaccelerator.com/home/vb/code/libraries/Hooks/Journal_Record_Hooks/article.asp However, I do not understand which MSG type would get me the WM_PAINT events (WH_CALLWNDPROC and WH_CALLWNDPROCRET do not seem to do the job). I'm not even sure that WM_PAINT is what I'm looking for... Basically, if I knew when the DC associated with GetDesktopWindow() has changed then my problem would be solved. Question is: How do you monitor screen updates?

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  • Performance monitor shows 4294967293 sessions active

    - by TGnat
    I have an ASP.Net 3.5 website running in IIS 6 on Windows Server 2003 R2. It is a relatively small internal application that probably serves less than ten users at any given time. The server has 4 Gig of memory and shows that 3+ Gig is available while the site is active. Just minutes after restarting the web application Performance monitor shows that there is a whopping 4,294,967,293 sessions active! I am fairly certain that this number is incorrect; at the time this reading there were only 100 requests to the website. Has anyone else experienced this kind odd behavior from perf mon? Any ideas on how to get an accurate reading? UPDATE: After running for about an hour the number of active sessions has dropped by 4. So it does seem to be responding to sessions timing out.

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  • What interprocess locking calls should I monitor?

    - by Matt Joiner
    I'm monitoring a process with strace/ltrace in the hope to find and intercept a call that checks, and potentially activates some kind of globally shared lock. While I've dealt with and read about several forms of interprocess locking on Linux before, I'm drawing a blank on what to calls to look for. Currently my only suspect is futex() which comes up very early on in the process' execution. Update0 There is some confusion about what I'm after. I'm monitoring an existing process for calls to persistent interprocess memory or equivalent. I'd like to know what system and library calls to look for. I have no intention call these myself, so naturally futex() will come up, I'm sure many libraries will implement their locking calls in terms of this, etc. Update1 I'd like a list of function names or a link to documentation, that I should monitor at the ltrace and strace levels (and specifying which). Any other good advice about how to track and locate the global lock in mind would be great.

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  • Thread.sleep vs Monitor.Wait vs RegisteredWaitHandle?

    - by Royi Namir
    (the following items has different goals , but im interesting knowing how they "PAUSEd") questions Thread.sleep - Does it impact performance on a system ?does it tie up a thread with its wait ? what about Monitor.Wait ? what is the difference in the way they "wait"? do they tie up a thread with their wait ? what aboutRegisteredWaitHandle ? This method accepts a delegate that is executed when a wait handle is signaled. While it’s waiting, it doesn’t tie up a thread. so some thread are paused and can be woken by a delegate , while others just wait ? spin ? can someone please make things clearer ? edit http://www.albahari.com/threading/part2.aspx

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  • Monitor file in Java on Linux 64bits

    - by Tim
    I'd like to be notified when a file has been created, deleted or changed, but not using polling mechanism. I have surveyed related Java API that can use.(EX:JNotify, JPathWatch and JXFileWatcher) Those APIs provide file monitor by using native component on OS. But I met the same problem is that they can't run on Linux 64bits, because native component in those APIs donen't support Linux 64bits, and this confused me for a long time. I also know that there'll be a WatchService API as part of NIO2 in JDK7, but JDK7 has not released yet. So, can any one suggest me a better solution? Very Thanks.

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  • How can I retrieve monitor information?

    - by Jon Tackabury
    I am trying to retrieve the monitor ID's as shown in the Windows display properties (#1, 2... etc), but I can't seem to find a way. I have tried using EnumDisplayMonitors as well as EnumDisplayDevices. They both return something like "\.\DISPLAY1". However, this number doesn't always match the number shown by Windows, especially when 2 video cards are being used to drive 3 or more monitors. Is there an API call I am missing to retrieve this information, or is there a way to get it from the registry or somewhere else? Thanks! I have tried these methods: Win32: EnumDisplayMonitors, EnumDisplayDevices: Neither of these return monitors that aren't active, and neither one returns the correct IDs. WMI: "select * from Win32_DesktopMonitor" doesn't return all the monitors, and there is no ID. Registry: I have found the monitors in various locations, none of the places I found have the info I am looking for. Any help is much appreciated. :)

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  • Connecting ipad to external monitor

    - by Josh P.
    I am trying to connect my ipad app to an external screen using the following (not checking the correct resolution for no - just want it up and running). - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { [window addSubview:[navigationController view]]; if ([[UIScreen screens] count] > 1) { window.screen = [[UIScreen screens] objectAtIndex:1]; } [window makeKeyAndVisible]; return YES; } Is this supposed to redirect everything to the external monitor? How dows it work with touches/gestures? I see in the Apple apps, the controls etc are left on the ipad screen...

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  • Ubuntu quickly (python/gtk) - how to monitor stdin?

    - by neil
    I'm starting to work with Ubuntu's "quickly" framework, which is python/gtk based. I want to write a gui wrapper for a textmode C state-machine that uses stdin/stdout. I'm new to gtk. I can see that the python print command will write to the terminal window, so I assume I could redirect that to my C program's stdin. But how can I get my quickly program to monitor stdin (i.e. watch for the C program's stdout responses)? I suppose I need some sort of polling loop, but I don't know if/where that is supported within the "quickly" framework. Or is redirection not the way to go - should I be looking at something like gobject.spawn_async?

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  • Tool to monitor IE performance running JavaScript

    - by StefanE
    Hi, Company I work for are one of the largest betting companies in Europe and the website has thousands of lines of JavaScript on all our pages. Lately Internet Explorer versions earlier than version 9 are running painfully slow and I want to be able to monitor what parts of a page load (including scripts) that are slow. I know that IE are slower in general and has DOM API issues etc. What I want to accomplish is a way to quickly identify slow parts and see if we can replace the code with IE specific code that will render with higher performance. Cheers, Stefan

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  • How to show a firemonkey form on second monitor

    - by Shaun07776
    I am trying to display a FireMonkey form on a second monitor, using C++Builder with following code: void __fastcall ShowFormOnScreen( int OutMon ) { MyForm->Top = 0; MyForm->BorderStyle = bsNone; MyForm->WindowState = wsNormal; MyForm->Left = Screen->Monitors[OutMon]->Left; MyForm->Height = Screen->Monitors[OutMon]->Height; MyForm->Width = Screen->Monitors[OutMon]->Width; MyForm->Show(); } Unfortunately, the Screen object does not have the Monitors property, so how can do this in FireMonkey?

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  • monitor and kill runaway processes using 100% IO?

    - by bleomycin
    Hello everyone, i have a few processes that have to be run at high priority (chrt 98) that will occasionally decide to hard-lock and peg 1 core at 100% (not a huge deal) but more importantly it will use all the IO on a system, so much that its impossible to log into the machine via ssh to kill it or perform any task on the machine that isn't loaded into ram. If i happen to have something like htop already running i am able to end the process fine. Is there any type of utility/way to monitor for this type of runaway process and kill anything that uses 100% of system IO for more than X amount of time? Thanks!

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  • Is there a way to split a widescreen monitor in to two or more virtual monitors?

    - by Mike Thompson
    Like most developers I have grown to love dual monitors. I won't go into all the reasons for their goodness; just take it as a given. However, they are not perfect. You can never seem to line them up "just right". You always end up with the monitors at slight funny angles. And of course the bezel always gets in the way. And this is with identical monitors. The problem is much worse with different monitors -- VMWare's multi monitor feature won't even work with monitors of differnt resolutions. When you use multiple monnitors, one of them becomes your primary monitor of focus. Your focus may flip from one monitor to the other, but at any point in time you are usually focusing on only one monitor. There are exceptions to this (WinDiff, Excel), but this is generally the case. I suggest that having a single large monitor with all the benefits of multiple smaller monitors would be a better solution. Wide screen monitors are fantastic, but it is hard to use all the space efficiently. If you are writing code you are generally working on the left-hand side of the window. If you maximize an editor on a wide-screen monitor the right-hand side of the window will be a sea of white. Programs like WinSplit Revolution will help to organise your windows, but this is really just addressing the symptom, not the problem. Even with WinSplit Revolution, when you maximise a window it will take up the whole screen. You can't lock a window into a specific section of the screen. This is where virtual monitors comes in. What would be really nice is a video driver that sits on top of the existing driver, but allows a single monitor to be virtualised into multiple monitors. Control Panel would see your single physical monitor as two or more virtual monitors. The software could even support a virtual bezel to emphasise what is happening, or you could opt for seamless mode. Programs like WinSplit Revolution and UltraMon would still work. This virtual video driver would allow you to slice & dice your physical monitor into as many virtual monitors as you want. Does anybody know if such software exists? If not, are there any budding Windows display driver guru's out there willing to take up the challenge? I am not after the myriad of virtual desktop/window manager programs that are available. I get frustrated with these programs. They seem good at first but they usually have some strange behaviour and don't work well with other programs (such as WinSplit Revolution). I want the real thing!

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  • Why are notifications appearing in the invisible black zone above my monitor ?

    - by Capt.Nemo
    I've got two monitors, with the right side one being slightly lower in the display settings. However any notifications I receive from notify-osd (including pidgin, notify-send etc) are sent to the top-most part of the right monitor screen, which results it in being invisible. And here's a pic of my monitor preferences : I'd earlier used the Wallpaper plugin in compiz to stitch my desktops, and then uninstalled compiz-extras. I'm using Ubuntu 11.04 in classic mode.

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  • How do I make Ubuntu aware of plugging in and out a second monitor ?

    - by Agmenor
    Usually, when I plug in a second monitor and I want my computer to be aware of it, I have to go to 'System' - 'Preferences' - 'Monitors'. Then, without clicking anywhere, my desktop knows it has to adapt itself (by cloning the screen or broadening the virtual desktop). How can I make this happen automatically ? For more information, my computer is an Acer Extensa 5636 notebook plugged to a Compaq CQ1859s monitor, using a VGA cable.

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  • How to protect/monitor your site from crawling by malicious user

    - by deathy
    Situation: Site with content protected by username/password (not all controlled since they can be trial/test users) a normal search engine can't get at it because of username/password restrictions a malicious user can still login and pass the session cookie to a "wget -r" or something else. The question would be what is the best solution to monitor such activity and respond to it (considering the site policy is no-crawling/scraping allowed) I can think of some options: Set up some traffic monitoring solution to limit the number of requests for a given user/IP. Related to the first point: Automatically block some user-agents (Evil :)) Set up a hidden link that when accessed logs out the user and disables his account. (Presumably this would not be accessed by a normal user since he wouldn't see it to click it, but a bot will crawl all links.) For point 1. do you know of a good already-implemented solution? Any experiences with it? One problem would be that some false positives might show up for very active but human users. For point 3: do you think this is really evil? Or do you see any possible problems with it? Also accepting other suggestions.

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  • Modify shell script to monitor/ping multiple ip addresses

    - by Alex
    Alright so I need to constantly monitor multiple routers and computers, to make sure they remain online. I have found a great script here that will notify me via growl(so i can get instant notifications on my phone) if a single ip cannot be pinged. I have been attempting to modify the script to ping multiple addresses, with little luck. I'm having trouble trying to figure out how to ping a down server while the script keeps watching the online servers. any help would be greatly appreciated. I haven't done much shell scripting so this is quite new to me. Thanks #!/bin/sh #Growl my Router alive! #2010 by zionthelion73 [at] gmail . com #use it for free #redistribute or modify but keep these comments #not for commercial purposes iconpath="/path/to/router/icon/file/internet.png" # path must be absolute or in "./path" form but relative to growlnotify position # document icon is used, not document content # Put the IP address of your router here localip=192.168.1.1 clear echo 'Router avaiability notification with Growl' #variable avaiable=false com="################" #comment prefix for logging porpouse while true; do if $avaiable then echo "$com 1) $localip avaiable $com" echo "1" while ping -c 1 -t 2 $localip do sleep 5 done growlnotify -s -I $iconpath -m "$localip is offline" avaiable=false else echo "$com 2) $localip not avaiable $com" #try to ping the router untill it come back and notify it while !(ping -c 1 -t 2 $localip) do echo "$com trying.... $com" sleep 5 done echo "$com found $localip $com" growlnotify -s -I $iconpath -m "$localip is online" avaiable=true fi sleep 5 done

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  • Display with intel integrated graphics, bitcoin mine with Radeon 6950

    - by karategeek6
    I'm on Ubuntu Linux 11.04 64 bit. I have an intel i5 with integrated graphics and a Radeon 6950, with one monitor. I would like to run my graphics on the integrated card, and run bitcoin mining on the 6950. I have bitcoin mining working when I use the 6950 for both display and mining. Every time I try and and use the integrated graphics instead, OpenCL doesn't recognize my 6950. Using aticonfig --initial when using the integrated graphics for display breaks things. So I used the xorg.conf it created as a basis and tried to manually edit it. I really don't know what I'm doing, though. My last attempt is given below. The graphics ran off the integrated card, but the 6950 wasn't recognized. Any help would be greatly appreciated! xorg.conf: #Section "ServerLayout" # Identifier "Intel Layout" # Screen "Default Screen" # Identifier "aticonfig Layout" # Screen "aticonfig-Screen[0]-0" # Screen 0 "aticonfig-Screen[0]-0" 0 0 #EndSection Section "Module" Load "glx" EndSection # Intel Section "Device" Identifier "Intel Integrated Graphics" Driver "intel" BusID "PCI:0:2:0" EndSection Section "Monitor" Identifier "Default Monitor" Option "VendorName" "Monitor Vendor" Option "ModelName" "Monitor Name" Option "DPMS" "true" EndSection Section "Screen" Identifier "Default Screen" Device "Intel Integrated Graphics" Monitor "Default Monitor" DefaultDepth 24 EndSection # ATI Section "Device" Identifier "aticonfig-Device[0]-0" Driver "fglrx" BusID "PCI:1:0:0" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]-0" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Screen" Identifier "aticonfig-Screen[0]-0" Device "aticonfig-Device[0]-0" Monitor "aticonfig-Monitor[0]-0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection

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  • Get aspect ratio of a monitor

    - by Alexander Stalt
    I want to get aspect ratio of a monitor as two digits : width and height. For example 4 and 3, 5 and 4, 16 and 9. I wrote some code for that task. Maybe it is any easier way to do that ? For example, some library function =\ /// <summary> /// Aspect ratio. /// </summary> public struct AspectRatio { int _height; /// <summary> /// Height. /// </summary> public int Height { get { return _height; } } int _width; /// <summary> /// Width. /// </summary> public int Width { get { return _width; } } /// <summary> /// Ctor. /// </summary> /// <param name="height">Height of aspect ratio.</param> /// <param name="width">Width of aspect ratio.</param> public AspectRatio(int height, int width) { _height = height; _width = width; } } public sealed class Aux { /// <summary> /// Get aspect ratio. /// </summary> /// <returns>Aspect ratio.</returns> public static AspectRatio GetAspectRatio() { int deskHeight = Screen.PrimaryScreen.Bounds.Height; int deskWidth = Screen.PrimaryScreen.Bounds.Width; int gcd = GCD(deskWidth, deskHeight); return new AspectRatio(deskHeight / gcd, deskWidth / gcd); } /// <summary> /// Greatest Common Denominator (GCD). Euclidean algorithm. /// </summary> /// <param name="a">Width.</param> /// <param name="b">Height.</param> /// <returns>GCD.</returns> static int GCD(int a, int b) { return b == 0 ? a : GCD(b, a % b); } }

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  • How to connect two monitors to a macbook pro?

    - by CIRK
    I have a 13" macbook pro, and I need much more space right now, so I decided to buy two smaller monitors. (these from LG). But I don't really know how will I connect them. I've seen some products like this Diamond BVU195, but it's not currently in stores in my country. I've found these Equip 128450 USB 2.0 Display Adapter DELOCK USB 2.0 to DVI/VGA/HDMI Adapter The second one looks pretty cool, but it says that Windows is a system requirement or what, so I'm not sure if it will work with mac os x? So how did you connected multiple monitors to you mac, and are these adapters the best choices, if yes then is there an OS independent one?

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  • Calibrate Screen Measurements / Scaling in Mac OS X

    - by orphu
    Is there a way to adjust the scaling of items on the screen in Mac OS X so they are 1 to 1 with the real world? I.E. When I'm working with a line in illustrator that is 5 inches long, and the zoom is 100%, I'd like the actual size of the line on screen to be 5 inches. I've dug into the System Preferences but can't seem to find anything related to this. I'm using Snow Leopard on a 24" iMac

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  • Calibrate Screen Measurements / Scaling in Mac OS X

    - by orphu
    Is there a way to adjust the scaling of items on the screen in Mac OS X so they are 1 to 1 with the real world? I.E. When I'm working with a line in illustrator that is 5 inches long, and the zoom is 100%, I'd like the actual size of the line on screen to be 5 inches. I've dug into the System Preferences but can't seem to find anything related to this. I'm using Snow Leopard on a 24" iMac

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  • Calibrating Displays in Boot Camp 3.0 on MacBook with external display

    - by Brian Reiter
    The LED display on my MacBook Pro is very blue-ish without correction. In OS X the advanced mode of the display color calibration tool is excellent and I can largely color-correct the display. Windows 7 incorporates a color calibration tool but it is less powerful. It largely consists of a software gamma correction tool and color charts to use with the hardware controls on your display (which don't exist on a notebook or an apple external display). How can I color-correct Windows in Boot Camp to match the OS X correction without using a Spyder or other special calibration hardware?

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  • finding the user of iis apppool \ defaultapppool

    - by LosManos
    My IIS apppool user is trying to create a folder but fails. How do I find out which User it is? Let's say I don't know much about IIS7 but need to trace whatever is happening through tools. Place of crime is WinSrv2008 with IIS7. So I fire up Sysinternals/ProcessMonitor to find out what is happening. I find Access denied on a folder just as I suspected. But which user? I add the User column to the output and it says IIS Apppool\Defaultapppool in capitals. Well... that isn't a user is it? If I go to IIS and its Apppools and Advanced settings and Process model and Identity I can see clues about which user it is but that is only because I know IIS. What if it had been Apache or LightHttpd or whatever? How do I see the user to give the appropriate rights to?

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  • finding the user - without knowing the innards of IIS

    - by LosManos
    Place of crime is WinSrv2008 with IIS7. My IIS apppool user is trying to create a folder but fails. How do I find out which User it is? Let's say I don't know much about IIS7 and Aspnet but need to trace whatever is happening through tools. So I fire up Sysinternals/ProcessMonitor to find out what is happening. I find Access denied on a folder just as I suspected. But which user? I add the User column to the output or ProcessMonitor and it says IIS Apppool\Defaultapppool in capitals. Well... that isn't a user is it? If I go to IIS and its Apppools and Advanced settings and Process model and Identity I can see clues about which user it is but that is only because I know IIS. What if it had been Apache or LightHttpd or whatever? How do I see the user to give the appropriate rights to?

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  • How to tilt a rigid LCD Wall Mount?

    - by benoror
    I recently bought a Wall Mount for my 24" LCD TV, it is just a few feet above my workspace desktop, but I need it to be a little bit tilted because I'm quite near the screen. I can't afford another wall-mount device, any ideas ? Description of the mount: http://bit.ly/cfyrEG

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