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  • OpenGL and gluUnProject, 3d object following mouse

    - by Robert
    i have a 3d object and i want him to "follow" my mouse position, so i use gluUnProject function to convert screen coordinates to 3d world coordinates and i translate this object with the new coordinates. Its working but i have a problem, my object can follow my mouse but he is moving extremely fast, when i move my mouse a little bit(something like 2 pixels), its moving extremly fast in the 3d world. I want something like that : http://www.youtube.com/watch?v=90zS8SVUAIY (red circle following mouse). Thanks for your help.

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  • How do I remap the buttons on an Apple Mighty Mouse?

    - by Jonathan.
    I just started using Ubuntu instead of Windows, my initial reaction was "omg this is awful", but after a while it grew on me, and I don't plan on going back to Windows. However I have an Apple Mighty Mouse which I was given today, and the buttons on it don't quite work. Left and right click work, so does scrolling right and down, also the back button works. However the forward button goes back, and the scroll up button sometimes scrolls down, scrolling left just doesn't work. Is there a way to fix this? Like remap the buttons? I'm not entirely sure how the driver thing works in Ubuntu?

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  • Logitech Unify... how to use both the keyboard abd mouse on the same receiver?

    - by simon
    I bought this keyboard : tinyurl.com/7g3l2wt and this mouse : tinyurl.com/7kvkldm I am trying to use both on the same receiver, but so far i can't figure it out! i have tried this : https://github.com/treeder/logitech_unifier But i don't know how to compile it! if i paste ' gcc -o unify unify.c ' in the terminal, then i got this: gcc: erreur: unify.c: Aucun fichier ou dossier de ce type gcc: erreur fatale: pas de fichier à l'entrée compilation terminée. sorry it is in french... it say no files of this type and no file in the input... anyone can tell me how to compile it and then find my hidraw devices?? thanks

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  • How do I simulate the mouse and keyboard using C# or C++?

    - by Art
    I want to start develop for Kinect, but hardest theme for it - how to send keyboard and mouse input to any application. In previous question I got an advice to develop my own driver for this devices, but this will take a while. I imagine application like a gate, that can translate SendMessage's into system wide input or driver application with API to send this inputs. So I wonder, is there are drivers or simulators that can interact with C# or C++? Small edition: SendMessage, PostMessage, keybd_event will work only on Windows application with common messages loop. So I need driver application that will work on low, kernel, level.

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  • How can I paste text by pressing the left and right mouse buttons at the same time?

    - by Badministrator
    I am coming from Ubuntu 10. I just recently upgraded to 12.04 LTS. In 10, I use to be able to cut and paste from Terminal by selecting text, and just pressing my two mouse buttons. In 12.04, I can't seem to do this. I have to highlight text, then right click to copy, then right click to paste. Or, I can do ctrl-shift-c and ctrl-shift-v. Both are okay methods, but not as fast as before. How do I configure Ubuntu to preserve 'old-school' cut and paste?

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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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  • Windows 7 mouse multi selection on windows explorer with CTRL and point to select / single click to open

    - by bortao
    This is something that have annoyed me since i changed to Windows 7. I don't do double click for a long time now since windows introduced 1 click selection (Folder Options Click items as follows Single click to open an item). The problem is, when i click Control and hover over the items, they select/deselect automatically every small amount of mouse movement i make. What i want is to select/deselect the items only when i enter/exit them. So to deselect an item im hovering, i have to move the mouse out of it, and then back in. I'm using Intellimouse Explorer official drivers. (edit) Here's another related annoyance: When you are hovering something and move the mouse inside other item (Holding Ctrl) The new item may or may not be selected. If you continue moving the mouse it gets selected/deselected as you move. (more edit) I have found that the parameter HKCU\Control Panel\Mouse\MouseHoverHeight / MouseHoverWidth have some influence here. If it's set to 2, the item select/deselect really quickly as you move the mouse. When set to larger numbers, its slower. But setting to 20 or 200 don't seem to be much different.

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  • how can a web page change my mouse speed?

    - by Tekaholic
    I usually have many tabs open in Firefox and I haven't been able to find one specific website that causes this because I don't seem to notice it right away. I'm going to click on something on my desktop and I am lifting up the mouse several times to get across the screen. It doesn't seem to matter what program I might be using because this happens on all desktops and in Firefox, too. So I go in my settings and I turn up the mouse speed all the way and it's still not really acceptable. It doesn't matter if I click on different tabs but when I close the browser, my mouse is way too sensitive, like I'd expect at the max setting. Then I go back to Control Center and return my mouse speed and acceleration to normal. When I restart my browser, the mouse remains normal. So is there something to this before I start wasting my time hunting through my history to discover which website or sites are having this effect? ...and if it is a specific site and I locate it, what can I change to stop it's effect on my mouse besides not visiting it? I am using Linux Mint 13 on a box with an AMD Athlon processor and 2gigs of ram. I never installed another browser because everything works for me.

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  • jscrollpane block scrolling parent

    - by sabithpocker
    Can i make jscrollpne such that parent pane doesnot scroll even when child scroll has reached its bottom. Now when child scrolling reaches bottom scrolling of parent occurs. I want parent to scroll only when mouse is out of child scrollpane.

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  • Ubuntu Suspend won't wake by mouse

    - by corsen
    I just installed Ubuntu 11.04 and realized that suspend would not wake by either keyboard or mouse. After following instructions from here: http://ubuntuforums.org/showthread.php?t=1642817 The system will now wake by keyboard. I have a USB mouse it is a logitech G5. Even if I enable all of the USB devices listed in /proc/acpi/wakeup, my computer will still not wake up via mouse. I'd really prefer to wake by mouse instead of keyboard due to cats. Does anyone know why my mouse won't wake the machine even after enabling all USB devices listed? Thanks, Bryan

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  • How can I respond to mouse events in AS3?

    - by Gabriel Meono
    Background: Trying to make a simple "drop the ball" game. The code is located inside the first frame of the timeline. Nothing more is on the stage. Issue: Using QuickBox2D I made a simple If statement that drops and object acording the Mouse-x position: if (MouseEvent.CLICK) { sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); I imported the MouseEvent library: import flash.events.MouseEvent; Nothing happens if I click, no output errors either. See it in action: http://gabrielmeono.com/download/Lucky_Hit_Alpha.swf http://gabrielmeono.com/download/Lucky_Hit_Alpha.fla Full Code: [SWF(width = 350, height = 600, frameRate = 60)] import com.actionsnippet.qbox.*; import flash.events.MouseEvent; var sim:QuickBox2D = new QuickBox2D(this); sim.createStageWalls(); //var ball:sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); // // make a heavy circle sim.addCircle({x:3, y:1, radius:0.25, density:5}); sim.addCircle({x:2, y:1, radius:0.25, density:5}); sim.addCircle({x:4, y:1, radius:0.25, density:5}); sim.addCircle({x:5, y:1, radius:0.25, density:5}); sim.addCircle({x:6, y:1, radius:0.25, density:5}); // create a few platforms sim.addBox({x:3, y:2, width:4, height:0.2, density:0, angle:0.1}); // make 26 dominoes for (var i:int = 0; i<7; i++){ //End sim.addCircle({x:1 + i * 1.5, y:16, radius:0.1, density:0}); sim.addCircle({x:2 + i * 1.5, y:15, radius:0.1, density:0}); //Mid end sim.addCircle({x:0 + i * 2, y:14, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:13, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:12, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:11, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:10, radius:0.1, density:0}); //Middle Start sim.addCircle({x:0 + i * 1.5, y:09, radius:0.1, density:0}); sim.addCircle({x:1 + i * 1.5, y:08, radius:0.1, density:0}); sim.addCircle({x:0 + i * 1.5, y:07, radius:0.1, density:0}); sim.addCircle({x:1 + i * 1.5, y:06, radius:0.1, density:0}); } if (MouseEvent.CLICK) { sim.addCircle({x:mouseX, y:1, radius:0.25, density:5}); sim.start(); /*sim.mouseDrag();*/ }

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  • Increasing number once per mouse click/key press in XNA

    - by DMan
    This has been bothering me lately- when I use some code like below to increase selection every mouse click: if (m.LeftButton == ButtonState.Pressed) currentSelection++; Then currentSelection increases by a ton, simply because this code is in my Update() function and by design, runs every frame and so increases currentSelection. There is almost no chance you can click and release fast enough to prevent currentSelection from increasing more than one. Now my question is what I should do to make it so everytime I click the mouse down once, it only increases currentSelection once until the next time I click down again.

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  • Mouse Capture and Selection

    - by Tommy
    I have a control, that moves around alot of different controls inside of it in the form of a grid. So basically, none of the container control is shown at any point. But i do have capture of all the mousedown and mousemove events of the controls inside. What id like to do, is create an effect alot like the desktop of a windows computer, where you can drag, and every control that is inside of the mouse's drag will be thrown in a list, and when the mouse is released i can perform an action on all the selected items. Is this possible?

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  • Mouse Over YouTube Previews YouTube Videos in Chrome

    - by ETC
    If you’re an avid YouTube video watcher, Mouse Over YouTube is a free Chrome extension that pops up a preview of any video you mouse over. Install the extension, put your mouse cursor over any YouTube video thumbnail, and a preview pops up in the upper right corner of your Chrome browser window. The only request we’d direct at the developer is either the ability to adjust the mouse over delay or to simply extend the delay. As it is now the video preview starts almost instantly which can make a whole page of YouTube thumbnails like a mine field of unexpected videos. Hit up the link below to grab a free copy. Mouse Over YouTube [Google Chrome Extensions via Addictive Tips] Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Access and Manage Your Ubuntu One Account in Chrome and Iron Mouse Over YouTube Previews YouTube Videos in Chrome Watch a Machine Get Upgraded from MS-DOS to Windows 7 [Video] Bring the Whole Ubuntu Gang Home to Your Desktop with this Mascots Wallpaper Hack Apart a Highlighter to Create UV-Reactive Flowers [Science] Add a “Textmate Style” Lightweight Text Editor with Dropbox Syncing to Chrome and Iron

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  • Stop Your Mouse from Waking Up Your Windows 7 Computer

    - by The Geek
    If you use Sleep Mode on your PC, have you ever noticed that moving your mouse will wake the computer from sleep mode? If you would prefer to only have the PC wake up when you hit a key instead, there’s a simple tweak. Just type Mouse into the start menu search box, or the Control Panel search box, and then open up the Mouse Properties panel. Find the Hardware tab, select your mouse in the list, and then click the Properties button. You’ll have to click the “Change settings” button before you can see the Power Management tab… And now, you can uncheck the box from “Allow this device to wake the computer”. That’s all there is to it. Similar Articles Productive Geek Tips Stop the Mouse From Waking Up Your Computer from Sleep ModeFix "Sleep Mode Randomly Waking Up" Issue in Windows VistaTemporarily Disable Windows Update’s Automatic Reboot in Win7 or VistaDisable Aero Snap (the Mouse Drag Window Arranging Feature in Windows 7)New Year’s Resolutions: Use Your Computer as an Alarm Clock the Easy Way TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Office 2010 Product Guides Google Maps Place marks – Pizza, Guns or Strip Clubs Monitor Applications With Kiwi LocPDF is a Visual PDF Search Tool Download Free iPad Wallpapers at iPad Decor Get Your Delicious Bookmarks In Firefox’s Awesome Bar

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  • Proportional speed movement between mouse and cube

    - by user1350772
    Hi i´m trying to move a cube with the freeglut mouse "glutMotionFunc(processMouseActiveMotion)" callback, my problem is that the movement is not proportional between the mouse speed movement and the cube movement. MouseButton function: #define MOVE_STEP 0.04 float g_x=0.0f; glutMouseFunc(MouseButton); glutMotionFunc(processMouseActiveMotion); void MouseButton(int button, int state, int x, int y){ if(button == GLUT_LEFT_BUTTON && state== GLUT_DOWN){ initial_x=x; } } When the left button gets clicked the x cordinate is stored in initial_x variable. void processMouseActiveMotion(int x,int y){ if(x>initial_x){ g_x-= MOVE_STEP; }else{ g_x+= MOVE_STEP; } initial_x=x; } When I move the mouse I look in which way it moves comparing the mouse new x coordinate with the initial_x variable, if xinitial_x the cube moves to the right, if not it moves to the left. Any idea how can i move the cube according to the mouse movement speed? Thanks EDIT 1 The idea is that when you click on any point of the screen and you drag to the left/right the cube moves proportionally of the mouse mouvement speed.

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  • Hide cursor in Chrome (and IE)

    - by Chris
    I have the following CSS that hides the mouse cursor for anything on the web page. It works perfectly in FireFox but in IE and and Chrome it doesn't work. html { cursor: none; } In Chrome I always see the mouse pointer. In IE however I see whatever cursor was last 'active' when it entered the screen. Presumably it's keeping the last selection instead of removing it.

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  • MS SideWinder Force Feedback Wheel under Win7 x64 - steering works but force feedback not

    - by user24752
    I just bought this second-hand ancient but professional steering wheel: Microsoft SideWinder Force Feedback Wheel. I hooked it up to my Win7 x64 machine, it recognized it without installing anything, it did show up in the "Devices and Printers" section. Right-click - I could calibrate it, I could use it under Flatout2 right away. However, force feedback does not seem to work. The steering wheel has a force-button. If I set it using force feedback, it should lit up according to the manual (originally written for Win98). However, instead of lighting up, it blinks. The manual does not associate anything to blinking. I never used any game controllers before on any Windows. Is there a way to check/calibrate force feedback?

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  • wxOSX/Carbon: wxGLCanvas mouse offset in non-floating window classes

    - by srose
    Hi All, I mainly program plugins using wxWidgets within a Carbon bundle which is loaded at runtime. The host-applications where my plugins are running in provide a native window handle (WindowRef), which I can use to add my custom, wxWidgets-based GUI-classes. To use the native window handle with wxWidgets classes I had to write a wxTopLevelWindow wrapper class, which does all the WindowRef encapsulation. So far, this works pretty well, but under some circumstances I got vertical mouse offsets within a wxGLCanvas if the window class of the native window handle is not of the type "kFloatingWindowClass". I am able to bypass the problem if I display an info panel (wxPanel) over the whole wxGlCanvas and if the user hides the info panel then the mouse offset is gone. Now my questions: Is there a "simple" explanation for this behaviour? Is it possible to use certain method calls to imitate info panel effect without using the panel itself? I tried several combinations of Update() and Refresh() calls of all involved components, but none of them worked so far. Even the use of wxSizer couldn't help here. Window hierarchy used by plugin-applications: wxCustomTopLevelWindow (WindowRef provided by host-application) wxPanel (parent window for all application panel) wxPanel (application info panel) wxPanel (application main panel) wxPanel (opengl main panel) wxGlCanvas (main opengl canvas) Any ideas? Any help is very appreciated.

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  • XNA 2D mouse picking

    - by Corndog
    I'm working on a simple 2D Real time strategy game using XNA. Right now I have reached the point where I need to be able to click on the sprite for a unit or building and be able to reference the object associated with that sprite. From the research I have done over the last three days I have found many references on how to do "Mouse picking" in 3D which does not seem to apply to my situation. I understand that another way to do this is to simply have an array of all "selectable" objects in the world and when the player clicks on a sprite it checks the mouse location against the locations of all the objects in the array. the problem I have with this approach is that it would become rather slow if the number of units and buildings grows to larger numbers. (it also does not seem very elegant) so what are some other ways I could do this. (Please note that I have also worked over the ideas of using a Hash table to associate the object with the sprite location, and using a 2 dimensional array where each location in the array represents one pixel in the world. once again they seem like rather clunky ways of doing things.)

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  • javascript mouse cursor change on page load in firefox browser 3.5

    - by Amit
    Hi in case of full page submit a trasparent div id coming and changing the cursor to 'wait' . Now when the page is getting submitted and new page is coming up cursor still remains to 'wait' not changing to default until mouse is moved in Firefox Here is simple html click on show button div is coming when user move mouse over the div cursor is changing as wait cursor. Now when this page is loaded again pressing F5 cursor remain as wait cursor in firefox its working fine in IE is there any way to make the cursor as default on pageload in Firefox <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Untitled Document</title> <style> body{ cursor:default; } </style> <script src="js/jquery.js"> </script> <script> var test = true; $(document).ready(function(){ $('#maindiv').css('display','none') }); function showDiv(){ $('#maindiv').css('display','block') } </script> </head> <body> <div id="divBody" style="background-color:red;width:500px;height:500px" >aa <div id="maindiv" style="background-color:#999999;height:100$;width:400px;height:400px;cursor:wait"> sss </div>aa </div> <input type="button" value="show" onclick="showDiv()"/> </body> </html>

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  • Clicking mouse by sending messages

    - by Frank Meulenaar
    I'm trying to send mouse clicks to a program. As I don't want the mouse to move, I don't want to use SendInput or mouse_event, and because the window that should receive the clicks doesn't really use Buttons or other GUI events, I can't send messages to these buttons. I'm trying to get this working using SendMessage, but for some reason it doesn't work. Relevant code is (in C#, but tried Java with jnative as well), trying this on Vista [DllImport("user32.dll", CharSet=CharSet.Auto)] public static extern int SendMessage(IntPtr A_0, int A_1, int A_2, int A_3); static int WM_CLOSE = 0x10; static int WM_LBUTTONDOWN = 0x201; static int WM_LBUTTONUP = 0x202; public static void click(IntPtr hWnd, int x, int y) { SendMessage(hWnd, WM_LBUTTONDOWN, 1, ((x << 0x10) ^ y)); SendMessage(hWnd, WM_LBUTTONUP, 0, ((x << 0x10) ^ y)); } public static void close(IntPtr hWnd) { SendMessage(hWnd, WM_CLOSE, 0, 0); } The close works fine, but the click doesn't do anything.

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