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• How to display a busy message over a wpf screen

  - by dave

  Hey, I have a WPF application based on Prism4. When performing slow operations, I want to show a busy screen. I will have a large number of screens, so I'm trying to build a single solution into the framework rather than adding the busy indicator to each screen. These long running operations run in a background thread. This allows the UI to be updated (good) but does not stop the user from using the UI (bad). What I'd like to do is overlay a control with a spinning dial sort of thing and have that control cover the entire screen (the old HTML trick with DIVs). When the app is busy, the control would display thus block any further interaction as well as showing the spinny thing. To set this up, I thought I could just have my app screen in a canvas along with the spinny thing (with a greater ZIndex) then just make the spinny thing visible as required. This, however, is getting hard. Canvases do not seem well set up for this and I think I might be barking up the wrong tree. I would appreciate any help. Thanks.

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• Animate screen while loading textures

  - by Omega

  My RPG-like game has random battles. When the player enters a random battle, it is necessary for my game to load the textures used within that battle (animated monsters, animations, etc). The textures are quite a lot, and rather big (the battles are very graphical intensive). Such process consumes significant time. And while it is loading, the whole screen freezes. The game's map freezes, and the wait time is significant - I personally find it annoying. I can't afford to preload the textures because, after doing some math, I realized: If I preload all the textures at the beginning of the game, the application will definitely crash. If I preload the textures that are used in a specific map when the player enters the map, the application is very likely to crash as well. I can only afford to load the textures when I need them, and dispose of them as soon as the battle ends. I'd prefer to not use a "loading screen" image because it affects my game's design and concept. I want to avoid this approach. If I could do some kind of animation while loading the textures, it would be great, which leads to my question: is that possible? What kind of animation, you ask? Well, how about... you remember when Final Fantasy used to distort the screen while apparently loading the textures? Something like that. But well, distorting is quite a time-consuming process as well, so maybe just a cool frame-by-frame animation or something. While writing this, I realized that I could make small pauses between textures (there are multiple textures), and during such pauses, I update the screen to represent the animation's state. However, this is very unlikely to happen, because each texture is 2048x2048, so the animation would be refreshed at a rather laggy (and annoying) rate. I'd prefer to avoid this as well.

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• Notebook display not working properly

  - by jfcfar

  I have an old Acer TM4001 notebook. If the laptop is powered-off, with the lid closed, when I power it on, it generally works. Then, without touching anything, if I reboot the computer the internal display wil not work anymore. To make it working again I need to shut down the pc, close and reopen the lid and then turn it on. If I close and reopen the lid if it is not working after power the pc on, it won't work. When the screen is working, closing and opening it has no effect (the data cable seems ok). The external monitor always works as expected: If the internal display is not detected, the external will be the main (and only) display. This is not OS-related. When the screen is not working I cannot see the POST. What could be the cause for this?

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• windows 7 haning and after shut down it does not start

  - by ads

  My windows 7 samsung i5 second gen laptop started hanging all of a sudden. I recovered it to factory image, it ran fine for 1 day then again started hanging. When i shut it down, i didnt start, it showed the msg bootmgr missing, then i used my samsung recovery cd and installed windows 7 home. When again i shut it down it didnt bootup. Just a blank screen. System repair is also not able to repair. Then i installed windows 7 ultimate. Aftr shutting it down it again ahowed the blank screen.. cant think of any other option, I am in a fix. Could anyone tell me what to so. Machine is just one yr old.

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• Application window sent behind other windows on closing different thread (C#)

  - by david.murrant

  I'm writing a Windows Forms Application in C#.NET On startup, the application displays a splash screen which is running in a separate thread. Whilst the splash screen is showing, the main application is initialising. Once the main application has finished initialising, the main form of the application is displayed, and the splash screen still shows over the top. Everything so far is as expected. Then, the Splash screen is closed, which causes that thread to exit. For some reason, at the point, the main application windows gets sent behind all other open Windows, notably the Windows Explorer window where you clicked the .exe file to run the application in the first place! What could be causing the windows to suddenly jump "behind" like this?

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• Ruby/Rails display general screen when modifications being performed on server

  - by john chan

  I have a ruby on rails app running a server and sometimes it needs to be taken down for updates/etc. As of now, one way I see to have a general display screen during update periods (when the app is down) is to substitute the files within /srv/www/ directory to just have it display a general screen everywhere that the user could possibly navigate to. I also thought of having a central controller file that connects all others (essentially a main) but this seems counter intuitive for rails. There are many external links to these different components of the site that the user could navigate to from outside and I need to make sure that they always receive this general update screen when the app is taken down for a little. I was wondering if anyone had any other ideas.... maybe a library or something like that, I can't seem to find anything online. any suggestions would be appreciated. Thanks

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• IPhone Example : Login Page and then Navigate to another Screen (UI Table View)

  - by Smc

  Hi, I am an .Net Expert but a new to the IPhone App Development. Recently I have started workinf on Objective - c. I need a help I need a example which shows a Login Screen and then Navigates to the another Screen (UITableView) when username and password and found correct. As of now I am assuming that username and passwords are hardcoded in app. I have tried to Design the Screen for Login UI but unable to Load the another ViewController but it wont worked Can some one help me out with examples, Links?

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• dell server display on laptop screen

  - by hari

  Please redirect if this is not (and probably thats true) the correct forum/site. I have a dell server and I am trying to configure it for the first time. It is running windows server 2003. I do not have a monitor screen. Can I use laptop screen to display dell server and set it up? I mean to say is, if I can display dell server on laptop screen, it would be great. I am trying that with a dell laptop but not getting the display. Any help/pointer would be appreciated. Thanks in advance.

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• Supporting multiple screen sizes with Android using ImageButtons

  - by droidy

  I've read the Android documentation: http://developer.android.com/guide/practices/screens_support.html but still have some questions. I'm trying to design a music application which basically has images of the instrument (ImageButton) that play a sound when clicked. However, I'm confused about how to have the ImageButtons scale to fit all the different screen sizes and how to position them. Which layout is best used for needing to position ImageButtons in specific locations on the screen? (i.e. cymbals on a drum set) FrameLayout, RelativeLayout? If I only really care about medium and large screens, do I need to create different resources (images) for both as well as a different XML layout to position them? I'm trying to find the simplest way to do this without having to create a separate layout XML file for positioning/size and separate image resources for each screen. Any guidance is greatly appreciated. Thanks!

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• iPad modal form sheet takes up the whole screen anyways

  - by quixoto

  I'm trying to create a form sheet modal on iPad, which should be a 540x620 modal view. I've created a view controller with a NIB file whose view is a 540x620 sized UIView (with stuff on it). I set the modal presentation style to UIModalPresentationFormSheet, and call presentModalViewController:animated: on the current view controller. My view slides in from the bottom, but instead of being a form sheet, it takes up the whole screen (my view elements are all anchored in the top left of the screen). Even stranger, when I dismiss it, all the UI that was "underneath" it, is all re-layed out to be in the center, in approximately a form sheet sized area in the center of the screen. Bizarro! Anyone have any suggestions as to what could cause this behavior? Thanks.

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• Projecting a 3D point to 2D screen coordinate OpenTK

  - by sinsro

  Using Monotouch and OpenTK I am trying to get the screen coordinate of one 3D point. I have my world view projection matrix set up, and OpenGL makes sense of it and projects my 3D model perfectly, but how to use the same matrix to project just one point from 2D to 3D? I thought I could simply use: Vector3.Transform(ref input3Dpos, ref matWorldViewProjection, out projected2Dpos); Then have the projected screen coordinate in projected2DPos. But the resulting Vector4 does not seem to represent the proper projected screen coordinate. And I do not know how to calculate it from there on.

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• On-screen keyboard not appearing when editing text fields in a UIWebView

  - by andrewebling

  I have a web view which displays a simple login form, containing username and password fields. However when the user clicks in one of the text fields, although the cursor appears in the text field, the on-screen keyboard does not appear. I've tried registering for UIKeyboardWillShowNotifications notifications and I see this notification arrive, however the keyboard doesn't actually appear on the screen. I've also tried sending the web view to the back of the view hierarchy and changing it's frame so it doesn't occupy the whole screen. However neither of these measures have solved the problem. What would people recommend trying next?

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• Display a number on the screen

  - by Ni

  does anyone know how to display a number on the screen? I can load the data and create a x/y graph. Now instead of showing the graph, I load a data value from a text file, and I want to display that number on the screen. Does anyone know what function i can use? ....... NSString *data =[myText objectAtIndex:1]; ....... so now data = 1, i want to display the value of the 'data' which is 1 on the screen.

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• Display a number on the screen Iphone SDK

  - by Ni

  does anyone know how to display a number on the screen/iphone simulator? I can load the data and create a x/y graph. Now instead of showing the graph, I load a data value from a text file, and I want to display that number on the screen. Does anyone know what function i can use? ....... NSString *data =[myText objectAtIndex:1]; ....... so now data = 1, i want to display the value of the 'data' which is 1 on the screen.

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• Custom size app screen on iPad

  - by mosdev

  I am trying to create a mid-size screen for my app on iPad. In didFinishLaunchingWithOptions(), I do this: CGRect winRect = CGRectMake(100,100,500,500); navController.view.frame = winRect; the screen comes up fine and I can click around and do stuff until the orientation changes. It takes the screen to original full size - how can I make it stick to my winRect frame? I tried setting the parentViewController.view.frame/view.frame to winRect in willRotateToInterfaceOrientation() but no good. Any ideas? Thanks.

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• screen orientation problem in windows mobile application

  - by karim

  some one in tips and tricks say like this plz i cant understand that plz if u could provide saple code for that answer ,i could understand it.actullay iam facing this problem in my application where iam using C#.net,VS 2008,windows mobile 6 professional. they told like this below one If you have to support multiple screen sizes/resolutions, form inheritance is an excellent way to do it. Basically you design your form to fit the standard 320x240 screen. To support a different screen size, you just add a new form, inherit from your custom form (instead of just Form), and then re-arrange the controls as necessary.

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• Querying current number of touches on screen without using events on iPhone

  - by nikhil

  I have an application that starts playing a sound when user touches the uiview and changing to different tones as the user slides the finger on the screen. The sound stops when the user lifts the finger. I am using the touchesBegan, Moved and Ended Events for this. My problem is touches Ended (and/or cancelled) is sometimes not fired properly and the sound keeps playing even after the finger is lifted from screen. So as a workaround I would like to implement a timer that would check for the number of touches on the screen and if it is zero it will check and stop the audioplayer if playing. I have been searching for some code that could get me the number of touches like UITouch *touches=[self getAllTouchesonScreen]; or something :)

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• Screen location of NSToolbarItem

  - by adib

  How can I get the on-screen location of a button in a toolbar? That is getting the rectangle frame of an NSToolbarItem? The [NSToolbarItem view] method seems to always return nil whenever the toolbar item is only a simple action button and thus I couldn't use the normal NSView methods to pinpoint the toolbar button's on-screen position. Background I'm trying to use Matt Gemmell's MAAttachedWindow component to point to a specific toolbar button. The component requires an NSPoint object to "point" the user to a location on the screen. Thanks in advance.

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• Canvas element covering the entire screen?

  - by Stefan Kendall

  I'm trying to use <canvas> in iPhone Safari, and if I place the element in the body, there are unused pixels to the left and top of the element. I tried specifying margin:0;padding:0 with CSS to no avail. What's going on here? <html> <head> $(document).ready(function() { $('#screen').attr("height", $(window).height() ); $('#screen').attr("width", $(window).width() ); //prevent scrolling $(document).bind('touchstart touchmove', function(e) { e.preventDefault(); }); }); </script> </head> <body> <canvas id = "screen"> </canvas> </body> </html>

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• WMI: How to differentiate between Wireless mouse and touch screen

  - by kingas

  I am using Win32_PointingDevice class to detect mice connected to the system. I ran my device discovery script on a machine which has touch screen. The discovery shows up with 3 pointing devices, directly connected USB mouse, wireless mouse and touch screen. My question is how to distinguish between USB mouse with touch screen. If Win32_PointingDevice class doesn't provide information then are there any other methods which I can use to get mouse and touch information. This is extension to my previous question at http://stackoverflow.com/questions/1746689/wmi-class-for-wireless-mouse

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• CreatePatternBrush and screen color depth

  - by Carlos Alloatti

  I am creating a brush using CreatePatternBrush with a bitmap created with CreateBitmap. The bitmap is 1 pixel wide and 24 pixels tall, I have the RGB value for each pixel, so I create an array of rgbquads and pass that to CreateBitmap. This works fine when the screen color depth is 32bpp, since the bitmap I create is also 32bpp. When the screen color depth is not 32bpp, this fails, and I understand why it does, since I should be creating a compatible bitmap instead. It seems I should use CreateCompatibleBitmap instead, but how do I put the pixel data I have into that bitmap? I have also read about CreateDIBPatternBrushPt, CreateDIBitmap, CreateDIBSection, etc. I don´t understand what is a DIBSection, and find the subject generally confusing. I do understand that I need a bitmap with the same color depth as the screen, but how do I create it having only the 32bpp pixel data?

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• Vertical Lines appearing rapidly on HP DV-1211tu screen

  - by Vibin Jith

  My laptop (HP DV-1211tu series) is more than 1 year old but was working fine. Then about couple of months back, there appeared ONE vertical line on my screen and I was told that I might have to change the screen!! So I ignored it and continued to work on my laptop. In the past week though there have been more lines appearing and its about 9 on last count. I am assuming this is a display problem but what do I do???? I can't afford a new screen. Any help / suggestions would be greatly appreciated !!! Thanks.

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• Notifying when screen is off

  - by Al

  I'm trying to generate a notification which vibrates the phone and plays a sound when the screen is off (cpu turned off). According to the Log messages, the notification is being sent, but the phone doesn't vibrate or play the sound until I turn the screen on again. I tried holding a 2 second temporary wakelock (PowerManager.PARTIAL_WAKE_LOCK), which I thought would be ample time for the notification to be played, but alas, it still doesn't. Any pointers to get the notification to run reliably? I'm testing this on an G1 running Android 1.6. Code I'm using: notif.vibrate = new long[] {100, 1000}; notif.defaults |= Notification.DEFAULT_SOUND; notif.ledARGB = Color.RED; notif.ledOnMS = 1; notif.ledOffMS = 0; notif.flags = Notification.FLAG_SHOW_LIGHTS; notif.flags |= NOTIF_FLAGS; //static var if (!screenOn) { //var which updates when screen turns off/on mWakeLock.acquire(2000); } manager.notify(NOTIF_ID, notif);

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• MediaElement seems to disable lock screen when playing a video

  - by CrossProduct

  I am working on an application that plays a video using the MediaElement component. Now, I would like that if the user is idle, the lock screen appears, as configured by the user in the Settings of the device. If I don't play a video, the lock screen indeed appears. But, when a video is playing no lock screen appears. I cannot find any information on this. Currently I set the idle detection modes like this: PhoneApplicationService.Current.ApplicationIdleDetectionMode = IdleDetectionMode.Enabled; PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Enabled; I am a bit lost now. The only solution I can think of is running a timer myself and stop the video playback after a certain time. (but there seems to be no API calls to receive the configured lock timeout.) Any suggestions are welcome, thanks.

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• HTML: adjusting the font size according to the screen size

  - by Mike

  I am building an intranet website that is intended to be seen by mobile phones using one of the following resolutions: 240x320, 320x240, 360x640 and 800x352. All content is to be seen covering the full screen. No scroll should be necessary. I have developed, initially for 360x640. When this content is seen on 240x320 or 320x240 the letter is too big and the user has to scroll to see all content. Is there any way to scale the letters down or up automatically, so the content will fit on every screen size? I mean, adjusting the text font size according to the current screen resolution? thanks for any help.

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