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• How to shutdown Windows 8 PC without using mouse?

  - by Gopinath

  Windows 8 sports a re-imagined desktop and tablet user interface with touch friendly Metro looks. One of the major changes in Windows 8 for a common users  is the lack of start menu, with which we got friended for more than a decade. On Windows 8 we would be missing it. As there is no start menu in Windows 8, the way you shutdown a Windows 8 computer is a bit different. To shutdown using Mouse, you need to hover on the top right edge of the screen to open the hidden menu,  go to "Settings"  tab -> "Power" -> Then choose for "Shut down", "Sleep" or "Restart".  That’s a lot of Mouse movement work and if you are a power user then you may not like to do that. How about shutting down the PC using Keyboard? Here are the two ways to shutdown the PC using keyboard Keyboard shortcuts With the help of keyboard shortcuts you can navigate to Power options of Windows 8. Press Win + C to bring the Settings Charm and use Arrows and Enter keys to navigate to access Shutdown menu. This is one of the easiest way to shutdown the PC without using Mouse. Run Command If you don’t like to go through the Setting menu, you can use the traditional Run commands. Press Win + R to open Run dialog and enter the command shutdown -s -t 0 to immediately shutdown the PC.

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• How does CommandManager.RequerySuggested work?

  - by Andrei Rinea

  The MSDN only states that Occurs when the CommandManager detects conditions that might change the ability of a command to execute. However I can't seem to find any traces of how this works, what I should be aware of / avoid etc... Does it just listen for input? (i.e.: mouse moves, keys pressed and so on)

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• C# cursor hidden only on one Form

  - by Santiago

  I have a C# application with 2 simultaneous visible forms, and I need to hide mouse cursor when it is over only on one of them. If I use Cursor.Hide() it applies the change for both of them. Thanks

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• Programatically change cursor speed in windows

  - by Juan Manuel Formoso

  Since getting a satisfactory answer on SuperUser is very difficult, I want to rephrase this question and ask: Is there any way to programatically detect a mouse was plugged in the usb port, and change the cursor speed in windows (perhaps through an API)? I'd like to use C#, but I'm open to any language that can run on a windows 7 machine.

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• Visual Studio Game Controller

  - by Pythonator

  I'm making a program to improve your gaming skills, so its not a hacking program!! Now, i'm stuck on 1 thing, i need sort of a keylogger, that will logg what you do, For example, when you press space, it has to put Jumped in a Rich Text Box. When you left mouse click, it has to add Shots Fired to the Rich Text Box, and then , when right mousebutton is clicked, add Aiming Down Sights, but when its released it should also add something like Stopped Aiming Down Sights Can anyone help me on this? Greets

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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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• Canvas background for retrieving color

  - by urema

  Hi, I have a canvas with a background set to be lineargradientbrush....how do I then extract the color from this background at a particular mouse point (x,y)? I can do this with a BitmappedImage fine...as this deals with pixels, not sure about a canvas though... Thanks greatly in advance, U.

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• How can I receive mouse events when a wrapped control has set capture?

  - by Greg

  My WndProc isn't seeing mouse-up notifications when I click with a modifier key (shift or control) pressed. I see them without the modifier key, and I see mouse-down notifications with the modifier keys. I'm trying to track user actions in a component I didn't write, so I'm using the Windows Forms NativeWindow wrapper (wrapping the component) to get Windows messages from the WndProc() method. I've tried tracking the notifications I do get, and I the only clue I see is WM_CAPTURECHANGED. I've tried calling SetCapture when I receive the WM_LBUTTONDOWN message, but it doesn't help. Without modifier (skipping paint, timer and NCHITTEST messages): WM_PARENTNOTIFY WM_MOUSEACTIVATE WM_MOUSEACTIVATE WM_SETCURSOR WM_LBUTTONDOWN WM_SETCURSOR WM_MOUSEMOVE WM_SETCURSOR WM_LBUTTONUP With modifier (skipping paint, timer and NCHITTEST messages): WM_KEYDOWN WM_PARENTNOTIFY WM_MOUSEACTIVATE WM_MOUSEACTIVATE WM_SETCURSOR WM_LBUTTONDOWN WM_SETCURSOR (repeats) WM_KEYDOWN (repeats) WM_KEYUP If I hold the mouse button down for a long time, I can usually get a WM_LBUTTONUP notification, but it should be possible to make it more responsive.. Edit: I've tried control-clicking outside of the component of interest and moving the cursor into it before releasing the mouse button, and then I do get a WM_LBUTTONUP notification, so it looks like the component is capturing the mouse on mouse-down. Is there any way to receive that notification when another window has captured the mouse? Thanks.

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• Changing middle mouse behavior in Adobe AIR HTML Control?

  - by Qz

  I'm using the Flex 4/Adobe AIR mx:HTML control in a project and I'm trying to figure out how to change the middle mouse behavior. For some reason the control treats middle mouse clicks and drags exactly the same as left mouse clicks and drags, navigating through links and selecting text -- everything. For my project I need to use the middle mouse button for a different function. I've figured out how to hook into the events (although mouseUp and mouseDown for Left/Middle don't work over HTML whitespace, perhaps because of the default behavior). However I can't figure out how to stop the default behavior for middle mouse events. Calling preventDefault() on the HTML control mouse events doesn't work, presumably because the behavior is handled by the HTMLLoader within the HTML control, which I imagine hooks mouse events to the actual HTML content displayed on screen. Unfortunately I can't view the source for HTMLLoader to figure out what's going on, and browsing the properties and events doesn't shed any light on the situation either. Any help would be greatly appreciated! Oh, if anyone can suggest a different embeddable HTML renderer that doesn't have this problem, then that might work too, I'm not too tied to WebKit (although I do need to use AIR)

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• Intercepting mouse events using a global hook. Stop an action from happening.

  - by fMinkel

  I'm attempting to intercept and interrupt mouse events. Lets say I wanted to disable the right mouse button down event, or even the mouse move event. I haven't been able to figure out the interrupting part. I am using the (I assume pretty widely used) following code for Global Hooking of the mouse. Private Structure MSLLHOOKSTRUCT Public pt As Point Public mouseData As Int32 Public flags As Int32 Public time As Int32 Public extra As IntPtr End Structure Private _mouseHook As IntPtr Private Const WH_MOUSE_LL As Int32 = 14 Private Delegate Function MouseHookDelegate(ByVal nCode As Int32, ByVal wParam As IntPtr, ByRef lParam As MSLLHOOKSTRUCT) As Int32 <MarshalAs(UnmanagedType.FunctionPtr)> Private _mouseProc As MouseHookDelegate Private Declare Function SetWindowsHookExW Lib "user32.dll" (ByVal idHook As Int32, ByVal HookProc As MouseHookDelegate, ByVal hInstance As IntPtr, ByVal wParam As Int32) As IntPtr Private Declare Function UnhookWindowsHookEx Lib "user32.dll" (ByVal hook As IntPtr) As Boolean Private Declare Function CallNextHookEx Lib "user32.dll" (ByVal idHook As Int32, ByVal nCode As Int32, ByVal wParam As IntPtr, ByRef lParam As MSLLHOOKSTRUCT) As Int32 Private Declare Function GetCurrentThreadId Lib "kernel32.dll" () As Integer Private Declare Function GetModuleHandleW Lib "kernel32.dll" (ByVal fakezero As IntPtr) As IntPtr Public Function HookMouse() As Boolean Debug.Print("Mouse Hooked") If _mouseHook = IntPtr.Zero Then _mouseProc = New MouseHookDelegate(AddressOf MouseHookProc) _mouseHook = SetWindowsHookExW(WH_MOUSE_LL, _mouseProc, GetModuleHandleW(IntPtr.Zero), 0) End If Return _mouseHook <> IntPtr.Zero End Function Public Sub UnHookMouse() Debug.Print("Mouse UnHooked") If _mouseHook = IntPtr.Zero Then Return UnhookWindowsHookEx(_mouseHook) _mouseHook = IntPtr.Zero End Sub Private Function MouseHookProc(ByVal nCode As Int32, ByVal wParam As IntPtr, ByRef lParam As MSLLHOOKSTRUCT) As Int32 'Debug.Print("Message = {0}, x={1}, y={2}", wParam.ToInt32, lParam.pt.X, lParam.pt.Y) If wParam.ToInt32 = 513 Then '''interrupt the left mouse button event here, but don't know what to return to do so. End If Return CallNextHookEx(WH_MOUSE_LL, nCode, wParam, lParam) End Function

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• How do I go about hosting facebook apps that are picking speed?

  - by Karthik

  My situation is this. I coded in php and built a facebook app. After 3 days it has 13,000 users. I have my own server at hostmonster. It is a regular plan costing me about $70 per year. It has unlimited bandwidth. I did not anticipate hosting apps or that it could pick up so many users. Already 1 Gb of data was transferred in the last few days. I am planning to build a few more apps(around 10 - 20) and reach atleast a million users in total. Should I continue hosting on the same server or move to a VPS? I am a student and I don't have too much of a disposable income. So I want to move only if it is necessary. Right now it shows 1 Gb/infinity in data transfer. Any help/suggestions highly appreciated.

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• Picking a suitable resolution for a modern low-res game?

  - by MrKatSwordfish

  I'm working on a 2D game project right now (using SFML+OpenGL and C++) and I'm trying to figure out how to go about choosing a resolution. I want my game to have a pixel resolution that is around that of classic '16bit' era consoles like the Super Nintendo or Neo Geo. However, I'd also like to have my game fit the 16:9 aspect ratio that most modern PC monitors use. Finally I'd like to be able to include an option for running full screen. I know that I could create my own low-res 16:9 resolution that is more-or-less around the size of SNES or NeoGeo games. However, the problem seems to be that doing so would leave me with a non-standard resolution that my monitor would not be able to support in fullscreen mode. For example, if i divide the common 16:9 resolution 1920x1080 by 4, I would get a 16:9 resolution that is relatively close to the resolution used by 16bit era games; 480x270. That would be fine in a windowed mode, but I don't think that it would be supported in fullscreen mode. How can I choose a resolution that suits my needs? Can I use something like 480x270? If so, how would I go about getting fullscreen mode to work with such a non-standard resolution? (I'm guessing OpenGL/SFML might have a way of up-scaling...but..)

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• Information Gain and Entropy

  - by dhorn

  I recently read this question regarding information gain and entropy. I think I have a semi-decent grasp on the main idea, but I'm curious as what to do with situations such as follows: If we have a bag of 7 coins, 1 of which is heavier than the others, and 1 of which is lighter than the others, and we know the heavier coin + the lighter coin is the same as 2 normal coins, what is the information gain associated with picking two random coins and weighing them against each other? Our goal here is to identify the two odd coins. I've been thinking this problem over for a while, and can't frame it correctly in a decision tree, or any other way for that matter. Any help? EDIT: I understand the formula for entropy and the formula for information gain. What I don't understand is how to frame this problem in a decision tree format. EDIT 2: Here is where I'm at so far: Assuming we pick two coins and they both end up weighing the same, we can assume our new chances of picking H+L come out to 1/5 * 1/4 = 1/20 , easy enough. Assuming we pick two coins and the left side is heavier. There are three different cases where this can occur: HM: Which gives us 1/2 chance of picking H and a 1/4 chance of picking L: 1/8 HL: 1/2 chance of picking high, 1/1 chance of picking low: 1/1 ML: 1/2 chance of picking low, 1/4 chance of picking high: 1/8 However, the odds of us picking HM are 1/7 * 5/6 which is 5/42 The odds of us picking HL are 1/7 * 1/6 which is 1/42 And the odds of us picking ML are 1/7 * 5/6 which is 5/42 If we weight the overall probabilities with these odds, we are given: (1/8) * (5/42) + (1/1) * (1/42) + (1/8) * (5/42) = 3/56. The same holds true for option B. option A = 3/56 option B = 3/56 option C = 1/20 However, option C should be weighted heavier because there is a 5/7 * 4/6 chance to pick two mediums. So I'm assuming from here I weight THOSE odds. I am pretty sure I've messed up somewhere along the way, but I think I'm on the right path! EDIT 3: More stuff. Assuming the scale is unbalanced, the odds are (10/11) that only one of the coins is the H or L coin, and (1/11) that both coins are H/L Therefore we can conclude: (10 / 11) * (1/2 * 1/5) and (1 / 11) * (1/2) EDIT 4: Going to go ahead and say that it is a total 4/42 increase.

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• How to disable mouse wheel changing ribbon tab in Microsoft Word 2007 on Windows?

  - by WilliamKF

  With Microsoft Word 2007 office there is now a ribbon with tabs. Often I wish to scroll the document with mouse middle button scroll wheel, however, if the mouse is hovering over the ribbon, the tabs of the ribbon are scrolled instead, this is never what I want. Is there a way to disable mouse wheel scrolling the ribbon and instead have it scroll the document?

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• Can Windows 7 or Vista's Snipping Tool capture a screen 10 seconds later, and capture the mouse poin

  - by Jian Lin

  I wonder if Windows 7 or Vista's Snipping Tool can capture a screen 10 seconds later, and capture the mouse pointer as well? The thing is that sometimes we need to capture the thing that "pops up" when the mouse is over it, so in that case, Snippling tool won't seem to work (because the mouse pointer is activating the Snipping tool instead of pointing at the thing to get the "pop up" item). In this case, the key PrtScn on the keyboard can capture the screen to the clipboard, except it won't capture the mouse pointer, which is sometimes wanted... Is there a way to do that, and possibly say, "capture the screen 10 seconds later, when I am all ready?" thanks.

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• Touchscreen using sound input?

  - by ricardowong

  Hi, i don't really know if it is actually possible, but i believe that it can be made. How possible is it to make a program that recognizes different sound bouncing from the screen and turn it into a position that will obviously be later fed to the mouse. I know that it sounds kind of dumb, but lately i've been noticing that a very dull, strong sound is made when touching the screen, and that sound varies when doing so at different positions. Probably the microphone "hears" differently because the screen acts as a drum with the casing. Anyways, what do you think, anyone has any experience programming with sound?

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• Kink detection in drawn polylines

  - by David Rutten

  Users can sketch in my app using a very simple tool (move mouse while holding LMB). This results in a series of mousemove events and I record the cursor location at each event. The resulting polyline curve tends to be rather dense, with recorded points almost every other pixel. I'd like to smooth this pixelated polyline, but I don't want to smooth intended kinks. So how do I figure out where the kinks are? The image shows the recorded trail (red pixels) and the 'implied' shape as a human would understand it. People tend to slow down near corners, so there is usually even more noise here than on the straight bits.

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• jquery mouseout problem

  - by From.ME.to.YOU

  hello my html <div id="parent"> <div id="child">cx</div> </div> when i use jquery $('#parent').mouseout(function(){ //something here }); i wonder why when my mouse enter the child div the function fires. i'm still inside parent div. i want that mouseout function to fire only when i leave the parent div not when i'm on any child div http://jsbin.com/esiju/ << example Cheers

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• How can I avoid the overflow when wheel scolling WPF DataGrid

  - by Jan Bannister

  When I use the mouse wheel to scroll the WPF Toolkit DataGrid on a Vista 64 Machine I get a cryptic low level error: at System.IntPtr.op_Explicit(IntPtr value) at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler) I logged an issue on CodePlex. But has anyone found a way to resolve this already?

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• How to return the handle of a window when we click on it, without any DLL injection?

  - by Doo Dee

  Hello! For one of my projects, I need to create a function that will return a handle to a window when the user click on it (any window displayed on screen, and anywhere inside that window). I know it is possible to use a global hook, but I think there must be a more simple way of doing that, without using any DLL injection. In fact, I could intercept the left mouse click or intercept when a window is activated. Can I use one of those 2 solutions without any DLL injection?

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• How to create a win32 application without window in background with C?

  - by user563413

  The application do not need any window or console. It can be a console application if the console window can be removed or can be put into background. The application will do some simple tasks(such as cleaning rubbish files) and exit. I hope that the application should not be a windows service if possible. I hope that the application can be started with double-click in explorer window and run silently. When the application is running, I hope that the mouse cursor should not be changed to hourglass shape. That is to say, do not disturb the user when the application is running. Just run and exit silently. DO NOT NEED to run it when windows starts or user logins. I hope this can be done in C if possible. What should I do? Thanks!

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• JAVA-I don't want clicking on my app make other apps lose focus

  - by Auxiliary

  Wow, what a stupid question you might say. But is it possible? I have a mouse move event in a Jpanel and it works even when the application is not in focus, now can I have something like that for the clicking event or something similar. And most importantly I don't want other apps (even something like the main menu) to lose focus when i click on my app. I was the system's event queue but i'm not sure where that would lead me to. Thanks in advance.

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• ActionScript Local X And Y Coordinates Of Display Object?

  - by TheDarkIn1978

  i'm trying to trace the x and y coordinates from within a sprite. i've added a rectangle to the stage: var rect:Rectangle = new Rectangle(10, 10, 200, 200); addChild(rect); adding a Mouse_Move event to the rect, i can trace mouseX and mouseY to receive the coordinates of the stage while moving over the rect, but how do i get the local x and y coordinates? so if i mouse over the very top left of the rect sprite, the mouseX and mouseY return 10 as the global coordinates, but how do i make it return 0 and the local coordinates of the sprite? i assumed localX and localY was what i was looking for, but this doesn't work: function mouseOverTraceCoords(evt:MouseEvent):void { trace(mouseX, mouseY, evt.localX, evt.localY); }

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• Mouse Event BHO

  - by shaimagz

  I want my BHO to listen to onmousedown event of some element in a certain webpage. I have all the code that find the specific element, and in msdn its says that I need to use the get_onmousedown event. I came up with this code. CComQIPtr<IHTMLElement> someElement; VARIANT mouse_eve; someElement->get_onmousedown(&mouse_eve); The question is, how do I tell it to run some function when this event occurs?

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• Sub-classing TreeView in C# WinForms for mouse over tool tips

  - by Matt

  Ok, this is a weird one. The expected behaviour for a TreeView control is that, if ShowNodeToolTips is set to false, then, when a label for a tree node exceeds the width of the control (or, more accurately, it's right hand edge is past the right hand edge of the client area), then a tooltip is shown above the node showing the full item's text. I'd like to disable that, because the above semantic doesn't always work, depending on what the treeview is contained within. So I have rolled my own, and got the tooltips to work (and line up better than the default one!) - but I would like to be able to disable the 'default' behaviour for situations where it would work natively. So, can anyone point me in the right direction as to which message to post to the TreeView in order to disable that behaviour? I have looked at the windows control reference, but couldn't find anything that looked like it might be the one. Thanks Matt

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