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  • Cannot assign keys to Wacom scroll wheel anymore

    - by UncleZeiv
    Hi all, my Wacom Graphire 4 used to work perfectly well until, I think, Ubuntu 10.4. At that point something changed in the configuration and I couldn't assign a key to the scroll wheel anymore (note: the pad's scroll wheel, not the mouse's), i.e this command: xsetwacom set "Wacom Graphire4 6x8 pad" AbsWDn "key +" returns silently without error but nothing happens. Same goes for AbsWUp, RelWDn, RelWUp. Apparently though the problem is even deeper as pressing the wheel in a xev window doesn't seem to have any effect. Moreover I am thoroughly confused on how the various pieces (kernel driver, xorg driver, evdev, HAL, xinput?) are supposed to work together and if the wacom module that ships with Ubuntu is the one from linuxwacom or not. Any ideas? I don't want to become an X.org hacker just to understand what's going on... it used to work! NOTE: I have already read question 3940, but that's not the same problem.

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  • Novell: 20 chances to reinvent itself

    <b>The Open Road:</b> "Novell, once the king of the software world, is like that. Over the years it has built up a broad portfolio of software (with associated revenue streams) in repeated attempts to regain its glory days. That portfolio now stifles its ability to focus on other areas with the most promise."

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  • Disable/configure Back and Forward through mouse wheel in Internet Explorer

    - by Subtwo
    I have a problem with Internet Explorer (version 7 on Windows XP). Sometimes (not always) when you use the mouse wheel to scroll a page up/down it instead chooses to go back or forth in the web browsing history. This behavior is the same as when you hold the shift-key simultaneously using the wheel. My guess is that Internet Explorer somehow gets misled by something and thinks that I'm actually pressing shift. This is in turn maybe an artifact of the fact that this particular session is a remote-desktop session originating from Linux (Ubuntu). Needless to say the problem can be quite irritating and the alternative of completely turning off the wheel functionality doesn't seem like an option as other applications would suffer greatly from this. Anyway back to my question(s): Is it possible to map the shift+wheel to a simple wheel event for Internet Explorer? Is it possible to disable the shift+wheel event for Internet Explorer? Any suggestions are greatly appreciated.

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  • Disable click action after letting up a mouse wheel hold scroll in Chrome browser

    - by Joe Miller
    I apologize in advance for the confusing title, not sure what the best way to describe this action is. Basically, I am holding down the mouse wheel and then moving the mouse itself up and down to scroll (not actually rotating the mouse wheel forward or backward). This is often the most convenient way to scroll for me. Unfortunately, when I scroll in this way, and then let up the mouse wheel again, it performs a click action, so if the arrow happens to land on a link when I let up the mouse wheel, I end up inadvertently clicking that link. How can I prevent the mouse from performing a click action when I use the mouse wheel to scroll by holding it down and then letting it up when I am done scrolling? It seems like this is only happening in the Chrome browser. Thanks! Windows 7, Chrome Browser, Logitech Mouse

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  • DevConnections: Day 1 Recap And Spin The Wheel Game

    Microsoft officially launched Visual Studio 2010 yesterday and the DevExpress booth was packed with attendees. Most attendees had product questions about current and future products. Some came by just to show their DevExpress love (thank you!). And some were also there to spin the wheel: DXperience v2010.1 Beta Release Date Our team is hard at work to get the DXperience v2010.1 beta out. DXperience customers should see the beta available in your client center account later this week or early...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Mouse wheel scrolls down, but not up?

    - by HDave
    I've set up a new machine with Ubuntu 12.04 (x64) and have notice that the mouse wheel scrolls down fine, but when I scroll up, it pages down! I've run xev and have verified that scroll up is registering as button 4 and scoll down is button 5. So everything there is fine. I think that button 4 is somehow mapped to page down instead of scroll up. Any idea how to fix? NOTE: I've read the Ubuntu instructions on how to use imwheel to change mouse button mappings, but it doesn't work on 12.04. See here: https://bugs.launchpad.net/ubuntu/+source/imwheel/+bug/1004812

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  • Elantech trackpad being identified as a logitech wheel mouse

    - by user11895
    I recently purchased a Samsung RF510 laptop computer, which I absolutely love. However, upon installing Ubuntu 10.10 onto it I couldn't get the trackpad to function properly. It worked as a basic mouse (point and click) but had no functionality for edge scrolling or any of the multitouch settings the trackpad is capable of. After doing a lot of research I discovered the reason is a known issue where the Ubuntu kernel will improperly detect an Elantech trackpad as a logitech PS/2 wheel mouse, and as such will gain none of the functionality that seems to be coded for synaptics trackpads. The question I have is: does anyone know a way to get this working properly? This is my first time trying to run Ubuntu on a laptop (actually, it's my first laptop in the last 12 years) and I'm finding the experience to be intolerable without the basic scrolling/zooming/etc I've been used to using for as long as I can remember.

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  • Simulate analogue steering wheel input from third party software like xPadder

    - by David Jensen
    So. I currently have a steering wheel connected to my htpc. Since it wont work / get recognized by all games i play. I use xpadder to play for example Grid 3. As far as i have understood, it simply presses the associated arrow key when i turn the wheel. What i would like, is a software to simulate more and more frequent key presses of the arrow keys the more i turn the wheel. Example: Tilting a little - 100 presses / second Tilting more - 200 presses / second Tilting max - Hold down key Because what i currently do with the wheel is constantly shaking it a bit right, when i just want to turn a little bit right and so on. Os : W8

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  • How to add a user to Wheel group?

    - by Natasha Thapa
    I am trying to add a use to wheel group using in a Ubuntu server. sudo usermod -aG wheel john I get: usermod: group 'wheel' does not exist On my /etc/sudoers I have this: > cat /etc/sudoers > # sudoers file. > # > # This file MUST be edited with the 'visudo' command as root. > # > # See the sudoers man page for the details on how to write a sudoers file. > # > > # Host alias specification > > # User alias specification > > # Cmnd alias specification > > # Defaults specification > > # User privilege specification root ALL=(ALL) ALL %root ALL=(ALL) NOPASSWD: ALL > > %wheel ALL=(ALL) NOPASSWD: ALL Do I have to do groupadd of wheel?

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  • How to invert scroll wheel in certain applications using AutoHotkey?

    - by endolith
    I want to be able to modify the scrolling/middle click behavior for individual apps on Windows 7, so that the scroll to zoom direction is always consistent across apps. This script makes the middle button act as a hand tool in Adobe Acrobat, for instance: ; Hand tool with middle button in Adobe Reader #IfWinActive ahk_class AdobeAcrobat Mbutton:: #IfWinActive ahk_class AcrobatSDIWindow Mbutton:: Send {Space down}{LButton down} ; Hold down the left mouse button. KeyWait Mbutton ; Wait for the user to release the middle button. Send {LButton up}{Space up} ; Release the left mouse button. return #IfWinActive (It would be great if this could be adapted to allow "throwing" the document, too, like in Android or iPhone interfaces, but I don't know if it's possible to control scrolling that precisely) How do I invert the scroll wheel--zoom direction?

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  • My Thoughts on Reinventing the Wheel

    - by Matt Christian
    For awhile now I've known that XNA Game Studio contains built-in scene management however I still built my own for each engine.  Obviously it was redundant and probably inefficient due to the amount of searching and such I was required to do.  And even though I knew this, why did I continue to do it? I've always been very detail oriented, probably part of my mild OCD.  But when it comes to technology I believe in both reinventing the wheel and not reinventing it all at the same time.  Here's what I imagine most programmers doing.  When they pick up XNA, they're typically focused on 'I want to make a game with as little code as possible'.  This is great and XNA GS is a great tool, but what will it do for programmers that want to make games with XNA?  If they don't have any prior experience with other tools they will probably not ever learn scene management. So is it better to leverage code and risk not learning valuable techniques, or write it all yourself and fight through the headaches and hours of time you may spend on something already built?

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  • SDL mouse wheel not picking up

    - by Chris
    Running Ubuntu 11.04, SDL 1.2 trying to pickup mouse wheel up/down movement with this (stripped down) code: int main( int argc, char **argv ) { SDL_MouseButtonEvent *mousebutton = NULL; while ( !done ) { if(mousebutton != NULL && mousebutton->button == SDL_BUTTON_LEFT) yrot += 0.75f; else if(mousebutton != NULL && mousebutton->button == SDL_BUTTON_RIGHT) yrot -= 0.75f; else if(mousebutton != NULL && mousebutton->button == SDL_BUTTON_WHEELUP){ xrot += 0.75f; }else if(mousebutton != NULL && mousebutton->button == SDL_BUTTON_WHEELDOWN){ xrot -= 0.75f; } while ( SDL_PollEvent( &event ) ) { switch( event.type ) { case SDL_MOUSEBUTTONDOWN: mousebutton = &event.button; break; case SDL_MOUSEBUTTONUP: mousebutton = NULL; break; default: break; } } } return 0; } strange thing is, scrolling with the mouse button does nothing, but if I hold down a mouse button or two and then move the mouse it hits the SDL_BUTTON_WHEEL code occasionally. This honestly reeks of a pointer issue, which would make sense since I've been spoiled with C# for the past couple years, but I am just not seeing it. How do i correctly find mouse scroll events in SDL?

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  • Windows dont boot after Ubuntu installation

    - by Diogo Garcia
    I have had serious problems installing ubuntu and Windows and have dual boot. Recently i installed booth operating systems, ubuntu was the lastima one, and after that my computador was booting directly to Windows 7. I used my ubuntu USB live to repair the grub, and o could repair. Now i initiate my pc with grub 1.99 and ubuntu and Windows are recognized, but Windows gives an error and dont initiate, sugesting to use Windows DVD to repair the grub. I tried that but with no effects on be behavior. I have a new asus n56vm. This conflits with gpt and mbr have been a huge pain to me. I dont know what to to, i installed ubuntu and Windows inumerous times since i bought this cumputer 2 weeks ago. Best regards!

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  • Microsoft corrige 34 vulnérabilités touchant Windows, dont plusieurs critiques dans le plus gros "Pa

    Microsoft corrige 34 vulnérabilités touchant Windows, dont plusieurs critiques dans le plus gros "Patch Tuesday" de 2010 Hier, Microsoft a sorti sa plus grosse mise à jour "Patch Tuesday" de 2010 avec dix bulletins (dont trois critiques) corrigeant 34 vulnérabilités affectant toutes les versions de Windows, ainsi que Office XP, Office 2003 et 2007, Office 2004 et 2008 pour Mac, Excel Viewer et Sharepoint Services 3.0. Les bulletins critiques portaient sur dix failles qui pouvaient potentiellement permettre à une personne mal intentionnée de prendre le contrôle à distance d'un ordinateur équipé de Windows. Ils ont été déployés en priorité par Microsoft. Le premier d'entre eux, MS10-033, patche une faille dans Qua...

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  • L'iPad disponible dans 9 pays dont la France le 28 mai mais pas avant juillet pour d'autres, dont la

    Aujourd'hui, Apple a confirmé, malgré le fait qu'il semble bien que l'iPad soit difficilement trouvable aux Etats-Unis, que l'iPad sera disponible dès le 28 mai dans 9 autres pays, dont France, le Canada et la Suisse. (mais aussi l'Australie, l'Allemagne, l'Italie, l'Espagne, le Royaume-Unis et le Japon). Les prix seront dévoilé ce lundi 10 mai sur l'Apple Store, où il sera également possible de les pré-commander. Dans cette même annonce, Apple annonce que l'iPad sera également lancé dans 9 autres pays, dont la Belgique. Mais ceux-ci devront patienter jusqu'au mois de Juillet pour cela. Source : http://www.apple.com/pr/library/2010/05/07ipad.html...

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  • Patch Tuesday : Microsoft corrige 14 vulnérabilités, dont 7 critiques, Windows 8, RT et IE 10 concernés

    Patch Tuesday : Microsoft corrige 14 vulnérabilités dont 7 critiques, Windows 8, RT et IE 10 concernés Microsoft a publié hier sa traditionnelle mise à jour de sécurité mensuelle (Patch Tuesday), qui apporte des correctifs pour les dernières versions de ses produits : Windows 8, Windows RT, Windows Server 2012 et Internet Explorer 10. La dernière mise à jour de sécurité (sauf en cas de découverte d'une faille zero-day) de l'année corrige une douzaine de failles dans Windows, IE, Word et Exchange, dont sept ont été marquées comme critique et deux ont été qualifiées d'importants. Ces failles dans l'ensemble peuvent être exploitées par des pirates distants pour prendre le con...

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  • Patch Tuesday : une douzaine de correctifs dont trois critiques seront publiés la semaine prochaine

    Patch Tuesday : une douzaine de correctifs dont trois critiques seront publiés la semaine prochaine Mise à jour du 4/02/11, par Hinault Romaric Microsoft vient de divulguer quelques informations dans le cadre de son processus de notification préalable sur sa prochaine mise à jour de Sécurité le « Patch Tuesday ». C'est au total 12 correctifs pour 22 failles de sécurité qui seront disponibles dont 3 sont qualifiés de "critique" et le reste "d'important". Ces correctifs viennent résoudre des problèmes touchant Windows, Internet Explorer, Office, Visual Studio. L'un de ces bulletins permet de...

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  • What is the best method for implementing mouse wheel activity in Delphi VCL forms?

    - by Brian Frost
    As a long time user of Delphi 7, I've rolled my own mouse wheel handling in a few controls but lately I've noticed that some recent applications only need the mouse cursor to be placed over a control (e.g a list box or tree view) for the mouse wheel activity to cause that control to scroll. This feels nice (as opposed to having to click focus a control before it responds to the wheel. Now I've moved to Delphi 2010 I'm wondering what is the 'correct' behavior? And what can I use in Delphi that avoids me having to bodge this with my own solutions now? Thanks.

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  • What is the best method for implementing mouse wheel activity in Delph1 VCL forms?

    - by Brian Frost
    As a long time user of Delphi 7, I've rolled my own mouse wheel handling in a few controls but lately I've noticed that some recent applications only need the mouse cursor to be placed over a control (e.g a list box or tree view) for the mouse wheel activity to cause that control to scroll. This feels nice (as opposed to having to click focus a control before it responds to the wheel. Now I've moved to Delphi 2010 I'm wondering what is the 'correct' behaviour? And what can I use in Delphi that avoids me having to bodge this with my own solutions now? Thanks.

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  • Liskov Substitution Principle and the Oft Forgot Third Wheel

    - by Stacy Vicknair
    Liskov Substitution Principle (LSP) is a principle of object oriented programming that many might be familiar with from the SOLID principles mnemonic from Uncle Bob Martin. The principle highlights the relationship between a type and its subtypes, and, according to Wikipedia, is defined by Barbara Liskov and Jeanette Wing as the following principle:   Let be a property provable about objects of type . Then should be provable for objects of type where is a subtype of .   Rectangles gonna rectangulate The iconic example of this principle is illustrated with the relationship between a rectangle and a square. Let’s say we have a class named Rectangle that had a property to set width and a property to set its height. 1: Public Class Rectangle 2: Overridable Property Width As Integer 3: Overridable Property Height As Integer 4: End Class   We all at some point here that inheritance mocks an “IS A” relationship, and by gosh we all know square IS A rectangle. So let’s make a square class that inherits from rectangle. However, squares do maintain the same length on every side, so let’s override and add that behavior. 1: Public Class Square 2: Inherits Rectangle 3:  4: Private _sideLength As Integer 5:  6: Public Overrides Property Width As Integer 7: Get 8: Return _sideLength 9: End Get 10: Set(value As Integer) 11: _sideLength = value 12: End Set 13: End Property 14:  15: Public Overrides Property Height As Integer 16: Get 17: Return _sideLength 18: End Get 19: Set(value As Integer) 20: _sideLength = value 21: End Set 22: End Property 23: End Class   Now, say we had the following test: 1: Public Sub SetHeight_DoesNotAffectWidth(rectangle As Rectangle) 2: 'arrange 3: Dim expectedWidth = 4 4: rectangle.Width = 4 5:  6: 'act 7: rectangle.Height = 7 8:  9: 'assert 10: Assert.AreEqual(expectedWidth, rectangle.Width) 11: End Sub   If we pass in a rectangle, this test passes just fine. What if we pass in a square?   This is where we see the violation of Liskov’s Principle! A square might "IS A” to a rectangle, but we have differing expectations on how a rectangle should function than how a square should! Great expectations Here’s where we pat ourselves on the back and take a victory lap around the office and tell everyone about how we understand LSP like a boss. And all is good… until we start trying to apply it to our work. If I can’t even change functionality on a simple setter without breaking the expectations on a parent class, what can I do with subtyping? Did Liskov just tell me to never touch subtyping again? The short answer: NO, SHE DIDN’T. When I first learned LSP, and from those I’ve talked with as well, I overlooked a very important but not appropriately stressed quality of the principle: our expectations. Our inclination is to want a logical catch-all, where we can easily apply this principle and wipe our hands, drop the mic and exit stage left. That’s not the case because in every different programming scenario, our expectations of the parent class or type will be different. We have to set reasonable expectations on the behaviors that we expect out of the parent, then make sure that those expectations are met by the child. Any expectations not explicitly expected of the parent aren’t expected of the child either, and don’t register as a violation of LSP that prevents implementation. You can see the flexibility mentioned in the Wikipedia article itself: A typical example that violates LSP is a Square class that derives from a Rectangle class, assuming getter and setter methods exist for both width and height. The Square class always assumes that the width is equal with the height. If a Square object is used in a context where a Rectangle is expected, unexpected behavior may occur because the dimensions of a Square cannot (or rather should not) be modified independently. This problem cannot be easily fixed: if we can modify the setter methods in the Square class so that they preserve the Square invariant (i.e., keep the dimensions equal), then these methods will weaken (violate) the postconditions for the Rectangle setters, which state that dimensions can be modified independently. Violations of LSP, like this one, may or may not be a problem in practice, depending on the postconditions or invariants that are actually expected by the code that uses classes violating LSP. Mutability is a key issue here. If Square and Rectangle had only getter methods (i.e., they were immutable objects), then no violation of LSP could occur. What this means is that the above situation with a rectangle and a square can be acceptable if we do not have the expectation for width to leave height unaffected, or vice-versa, in our application. Conclusion – the oft forgot third wheel Liskov Substitution Principle is meant to act as a guidance and warn us against unexpected behaviors. Objects can be stateful and as a result we can end up with unexpected situations if we don’t code carefully. Specifically when subclassing, make sure that the subclass meets the expectations held to its parent. Don’t let LSP think you cannot deviate from the behaviors of the parent, but understand that LSP is meant to highlight the importance of not only the parent and the child class, but also of the expectations WE set for the parent class and the necessity of meeting those expectations in order to help prevent sticky situations.   Code examples, in both VB and C# Technorati Tags: LSV,Liskov Substitution Principle,Uncle Bob,Robert Martin,Barbara Liskov,Liskov

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