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[FLASH CS4] Button acting as a scroll with mouse event in AS3?

- by Ivan

Hi all! I'm new here, just found these forums on Google. First of all, I want to appologise if there is some topics like this, but I searched whole forums and didn't find any that finishes my problem. Now the important one. As I stated in topic title, I need an AS3 code that's doing the thing. This is what I want to accomplish. I have a MC(image) in the center of my screen, and have two buttons, one on right and one on left side of that MC. I want to scroll (image is like a menu) that MC left or right on mouse events, down or over. So, I just want to change MCs X value while holding mouse button on buttons or just hovering over them. I have managed to do that, but it's only moving by one value I have entered after a mouse event. Here's a piece of code I did. buttonL1_btn.addEventListener(MouseEvent.MOUSE_OVER, buttonL1Pressed); function buttonL1Pressed(event:MouseEvent):void{ var temp:int = 0; var temp1:int = 0; temp = paleta1_mc.x; temp1 = temp - 5; paleta1_mc.x = temp1; trace(temp1); } I hope you understood me, and have a clue how to help me with this. Thank you very much in advance! Cheers, Ivan

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WPF performance on scaling a large scene

- by Mark

I have a full screen app that I want to be able to zoom in on certain areas. I have the code working fine, but I notice that when I get closer in, the zoom in animation (which animates the ScaleTransform.ScaleX and ScaleTransform.ScaleY properties on a Parent canvas) starts to jerk down a little and the frame rate suffers. Im not using any BitmapEffects or anything, and ideally I would like my scene to get more complicated than it currently already is. The scene is quite large, 1980x1024, this is a requirement and cannot be changed. The current layout is like this: <Canvas x:name="LayoutRoot"> <Canvas x:Name="ContainerCanvas"> <local:MyControl x:Name="c1" />  </Canvas> </Canvas> The code that zooms in just animates the RenderTransform of the ContainerCanvas, which in tern, scales its children which gives the desired effect. However, Im wondering if I need to swap out the ContainerCanvas for a ViewBox or something like that? Ive never really worked with ViewBox/Viewport controls before in WPF can they even help me out here? Smooth zooming is a huge requirement of the client and I must get this resolved. All ideas are welcome Thanks a lot Mark

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Robot Simulation in Java

- by Eddy Freeman

Hi Guys, I am doing a project concerning robot simulation and i need help. I have to simulate the activities of a robot in a warehouse. I am using mindstorm robots and lego's for the warehouse. The point here is i have to simulate all the activities of the robot on a Java GUI. That is whenever the robot is moving, users have to see it on the GUI a moving object which represents the robot. When the roads/rails/crossings of the warehouse changes it must also be changed on the screen. The whole project is i have to simulate whatever the robot is doing in the warehouse in real-time. Everything must happen in real-time I am asking which libraries in Java i can use to do this simulations in real-time and if someone can also point me to any site for good information. Am asking for libraries in Java that i can use to visualize the simulation in real-time. All suggestions are welcome. Thanks for your help.

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Problem Binding a ObservableCollection to a ListBox in WPF/MVVM

- by alexqs

I'm working in some code , using wpf and starting to use mvvm. So far i have no problem, when i have one element and I have to show the values of it in the screen (binding of the specific name of the property). But now, i have to work with a property list , not knowing the names of it. So I created a class, named GClass, that only have two propierties, name and value. I created the ObservableCollection, and fill for now with direct values, and asign the view (lstview) datacontext with the object i have created. But I cant see any result, it always shows a blank listbox. Can someone tell me if see why is happening ? Code of c# VDt = new ObservableCollection<GClass>(); var vhDt = message.SelectSingleElement(typeof (Vh)) as Vehiculo; if(vhDt != null) { VDt.Add(new GClass() {Name = "Numero: ", Value = ""}); VDt.Add(new GClass() {Name = "Marca: ", Value = ""}); VDt.Add(new GClass() {Name = "Conductor: ", Value = ""}); lstview.DataContext = this; _regionManager.RegisterViewWithRegionInIndex(RegionNames.MainRegion, lstview, 0); Code of the view <ListBox Margin="5,5,5,25" ItemsSource="{Binding VDt}"> <ListBox.Template> <ControlTemplate> <ListViewItem Content="{Binding Name}"></ListViewItem> <ListViewItem Content="{Binding Value}"></ListViewItem> </ControlTemplate> </ListBox.Template> </ListBox> I have research here, but i cant see, what I'm doing wrong. I will apreciate if someone help me.

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tinymce text area in facebox modal window not allowing me to type

- by jeansymolanza

i am using facebox (a jquery modal plug-in) and tinymce for my textboxes. however when i open any modal windows, i cannot type anything within the tinymce input box. any help? <script type="text/javascript" src="resources/tinymce/jscripts/tiny_mce/tiny_mce.js"></script> <script type="text/javascript"> tinyMCE.init({ mode : "textareas", theme : "simple" }); </script> <link href="resources/facebox.css" media="screen" rel="stylesheet" type="text/css"/> <script src="resources/facebox.js" type="text/javascript"></script> <script> jQuery(document).ready(function($) { $('a[rel*=facebox]').facebox() }) </script> <?php echo "<div style='display: none;' id='c".$oh_id."' rel='facebox'><div style='overflow: -moz-scrollbars-vertical; overflow-y: auto; width: 100%; height: 375px;'><h2 style='color: #3399cc;'>Comments for ".$row_clientName['clientName']."</h2>"; echo '<form method="post" action="somepage"> <textarea name="content" id="content" style="width: 300px; height: 125px;"> Comments... </textarea><br /> <input type="submit" value="Update" name="submit" class="comment_button"/><p> </form></div>'; ?>

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js popup window to play .flv flash video using jwplayer.swf

- by Mike Trader

js popup window to play .flv using jwplayer.swf I would like to adjust this code so that it does not crash the browser when expanded to full screen and the popup closes when it looses focus <html> <head> <title>Popup Example</title> <center> <div class="yt_container"> <div id="yt_the_video" class="yt_video_full"> <script type="text/javascript" src="swfobject.js"></script> <script type="text/javascript"> var s1 = new SWFObject("player.swf","ply","640","500","9","#FFFFFF"); s1.addParam("allowfullscreen","true"); s1.addParam("allownetworking","all"); s1.addParam("allowscriptaccess","always"); s1.addParam("flashvars",'&file=GJClip.flv&autostart=true'); </script> </head> <body 

bgcolor="#CCCFFF"> <img alt="GJ" src="GJPlay.jpg"
width="80" height="60" onClick="s1.write('yt_the_video');"

</body> </html> I have to have many small thumbnails on a page and each one needs to open up to a full size (640x480) video with controls when clicked. Having looked at Shdowbox (dims web page behind it, not allowed to do that) and lightbox which I cannot get to work at all, I am down to a home gown solution, which I prefer anyway.

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css positioning

- by bsreekanth

Hello, I have uploaded a part of my screen below (link: http://yfrog.com/0d30127380p) It is part of a forum, so there are elements above and below it. The "Response Req.. Date" has a label, a date picker, and two drop down select control for time. I tried setting the width of the datepicker element, and a right margin so that the time selectors would position next to it. But it always sit below it. I'm not good in css positioning, so any suggestion would be highly appreciated. <div class="wrapper "> <label for="responseRequiredDate"> Response Required Date <span class="indicator">*</span> </label> <input type="hidden" name="responseRequiredDate" value="struct" /><div class="datetimepicker"> <div class="datePicker"> </div> <script> ...</script> <div class="timepicker"><select .... </div> </div> the date picker insert a script tag, would that cause a problem. probably not.

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how to load multiple images in iCarousel using this code?

- by Dany

i'm loading bunch of images in coverflow using i carousel but i'm not getting it?..initially i got Signal sigabart issue..after i edited some of the code the view gets displayed...Am i missing something?... #import "CollectionViewController.h" @interface CollectionViewController () @property (nonatomic, retain) NSMutableArray *items; @end @implementation CollectionViewController @synthesize carousel; @synthesize items; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)dealloc { carousel.delegate = nil; carousel.dataSource = nil; [items release]; [carousel release]; [super dealloc]; } - (void)viewDidLoad { [super viewDidLoad]; carousel.type = iCarouselTypeCoverFlow2; } - (void)viewDidUnload { [super viewDidUnload]; self.carousel = nil; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } #pragma mark - #pragma mark iCarousel methods - (NSUInteger)numberOfItemsInCarousel:(iCarousel *)carousel { return [items count]; } - (NSUInteger)numberOfVisibleItemsInCarousel:(iCarousel *)carousel { return 29; } - (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view { //create new view if no view is available for recycling if (view == nil) { view = [NSArray arrayWithObjects:[UIImage imageNamed:@"gal1.jpg"], [UIImage imageNamed:@"gal2.jpg"], [UIImage imageNamed:@"gal3.jpg"], [UIImage imageNamed:@"gal5.jpg"], [UIImage imageNamed:@"gal6.jpg"], [UIImage imageNamed:@"gal7.jpg"], [UIImage imageNamed:@"gal8.jpg"], [UIImage imageNamed:@"gal9.jpg"], [UIImage imageNamed:@"gal10.jpg"], [UIImage imageNamed:@"gal11.jpg"], [UIImage imageNamed:@"gal12.jpg"], [UIImage imageNamed:@"gal13.jpg"], [UIImage imageNamed:@"gal14.jpg"], [UIImage imageNamed:@"gal15.jpg"], [UIImage imageNamed:@"gal16.jpg"], [UIImage imageNamed:@"gal17.jpg"], [UIImage imageNamed:@"gal18.jpg"], [UIImage imageNamed:@"gal19.jpg"], [UIImage imageNamed:@"gal20.jpg"], [UIImage imageNamed:@"gal21.jpg"], [UIImage imageNamed:@"gal22.jpg"], [UIImage imageNamed:@"gal23.jpg"], [UIImage imageNamed:@"gal24.jpg"], [UIImage imageNamed:@"gal25.jpg"], [UIImage imageNamed:@"gal26.jpg"], [UIImage imageNamed:@"gal27.jpg"], [UIImage imageNamed:@"gal28.jpg"], } else { } return view; } @end while running on simulator i just get the screen not images?...i got stuck here....

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How can I import a text file into javascript from an external website using jquery $get()?

- by Edward Tanguay

When the button in the following script gets clicked, it should load in the contents of the file "http://tanguay.info/knowsite/data.txt" and display it on the screen. What is the correct syntaxt so that the .get() function retrieves the data from the external website and puts it in #content? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <script type="text/javascript" src="http://www.google.com/jsapi"></script> <script type="text/javascript"> google.load("jquery", "1.3.2"); google.setOnLoadCallback(function() { $('#toggleButton').click(loadDataFromExernalWebsite); }); function loadDataFromExernalWebsite() { $('#content').html('new content'); //$.get("http://tanguay.info/knowsite/data.txt", function(data) { alert(data); }, ); } </script> </head> <body> <p>Click the button to load content:</p> <p id="content"></p> <input id="toggleButton" type="button" value="load content"/> </body> </html>

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Adding AJAX call to function triggered popup blocker

- by jerrygarciuh

Hi folks, I have a client who wants to open variously sized images in a centered popup. I tried to get them to use FancyBox but they don't want interstitial presentation, so... I initially was opening a generic popup which resized and centered onload based on image size but they don't like the shift so I added a PHP script to echo the sizes and used jQuery to fetch the size info to feed into the pop up call. But it appears the delay this causes is setting off all popup blockers. Here is the JS $("#portfolioBigPic").click(function () { var src = $("#portfolioBigPic").attr('src'); var ar = src.split('/'); var fname = ar.pop(); fname = '/g/portfolio/clients/big/' + fname; $.get("imgsize.php", { i: fname}, function(data){ var dim = data.split(","); popit(fname,dim[0],dim[1]); }); }); function popit(img,w,h) { var features = 'width='+w+',height='+h+', toolbar=0, location=0, directories=0, status=0, menubar=0, scrollbars=0, resizable=1,'; var left = (screen.width/2)-(w/2); var top = 0; features += 'top='+top+',left='+left; bigpic = window.open('portfolioBigPic.php?img='+img, 'bigpic',features); bigpic.focus(); } The only difference between dodging the blockers and failing is that I added the AJAX .get and use it to specify w and h. Any thoughts on how to avoid this? Maybe I should use PHP to get widths and heights of all the big pics and write a JS array of them when this page loads? Am I right that the delay caused by fetching the data is tripping the blockers? Thoughts? Any advice much appreciated. JG

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C# Regex - Replace multiple characters at once without overwriting?

- by Everaldo Aguiar

Hello guys, I'm implementing a c# program that should automatize a Mono-alphabetic substitution cipher. The functionality i'm working on at the moment is the simplest one: The user will provide a plain text and a cipher alphabet, for example: Plain text(input): THIS IS A TEST Cipher alphabet: A - Y, H - Z, I - K, S - L, E - J, T - Q Cipher Text(output): QZKL KL QJLQ I thought of using regular expressions since I've been programming in perl for a while, but I'm encountering some problems on c#. First I would like to know if someone would have a suggestion for a regular expression that would replace all occurrence of each letter by its corresponding cipher letter (provided by user) at once and without overwriting anything. Example: In this case, user provides plaintext "TEST", and on his cipher alphabet, he wishes to have all his T's replaced with E's, E's replaced with Y and S replaced with J. My first thought was to substitute each occurrence of a letter with an individual character and then replace that character by the cipherletter corresponding to the plaintext letter provided. Using the same example word "TEST", the steps taken by the program to provide an answer would be: 1 - replace T's with (lets say) @ 2 - replace E's with # 3 - replace S's with & 4 - Replace @ with E, # with Y, & with j 5 - Output = EYJE This solution doesn't seem to work for large texts. I would like to know if anyone can think of a single regular expression that would allow me to replace each letter in a given text by its corresponding letter in a 26-letter cipher alphabet without the need of splitting the task in an intermediate step as I mentioned. If it helps visualize the process, this is a print screen of my GUI for the program: http://img43.imageshack.us/img43/2118/11618743.jpg

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toggling proximity sensor on iPhone loses an event

- by slugolicious

I'm using setProximitySensingEnabled and implemented proximityStateChanged in my UIApplication subclass. It looks like if sensing is toggled, that the first "off" event is being lost. My UIApplication class is pretty basic... -(void)proximityStateChanged:(BOOL)state { NSLog(state ? @"ON" : @"OFF"); } In my application delegate, I have a UISwitch that enables/disables the proximity sensor. -(IBAction)toggleProxy:(id)sender { [UIApplication sharedApplication].proximitySensingEnabled = prox.on; } "prox" is my UISwitch. The test works fine when it first starts. I tap the switch to turn it on and then put my hand over the sensor for a second then move it away and get: 2009-03-11 12:43:00.465 Proximity[324:20b] ON 2009-03-11 12:43:02.514 Proximity[324:20b] OFF 2009-03-11 12:43:04.046 Proximity[324:20b] ON 2009-03-11 12:43:05.621 Proximity[324:20b] OFF I then tap the switch to turn it off then tap again to turn it on. Now I get: 2009-03-11 12:43:12.005 Proximity[324:20b] ON 2009-03-11 12:43:14.789 Proximity[324:20b] ON 2009-03-11 12:43:16.467 Proximity[324:20b] OFF 2009-03-11 12:43:17.516 Proximity[324:20b] ON 2009-03-11 12:43:19.077 Proximity[324:20b] OFF Notice I get two ON's before an OFF. The OFF is lost somewhere. I can't replicate this behavior using Google's mobile app so I'm wondering if they're resetting something in between proximity enabling. They don't have the proximity sensor on all the time because if you cover the sensor, the screen doesn't go blank. You have to tilt the phone up and angle it back (to simulate the position it would be in at your ear) and then covering the sensor works. Anyone else playing with the sensor? In my particular app, I'm recording a voice message and when you move the phone away from your ear, I want to pause the recording (when I get an OFF). The first time I move the phone away from my ear, the recording is not paused. However, if I put it to my ear and move it away again, it is paused.

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What is the right way to scale a Flex application up to fullscreen?

- by Impirator

Fullscreen mode and I have been battling for a while in this Flex application, and I'm coming up short on Google results to end my woes. I have no problem going into fullscreen mode by doing a Application.application.stage.displayState = StageDisplayState.FULL_SCREEN;, but the rest of the content just sits there in the top, left corner at it's original size. All right, says I, I'll just do a stage.scaleMode = StageScaleMode.SHOW_ALL and make it figure out how to pull this off. And it looks like it does. Except that when you mouse over the individual checkboxes and buttons and various components, they all fidget slightly. Just a slight jump up or down as they resize...on mouse over. Well, this is frustrating, but bearable. I can always just invoke invalidateSize() explicitly for all of them. But for the comboboxes. The ones at the bottom have their menus go off the bottom of the screen, and when I pop out of fullscreen mode, their drop downs cut off half way. I have no idea how to fix that. Can someone step in here, and put me out of my misery? What is the right way to scale a Flex application up to fullscreen? var button:Button = button_fullscreen; try { if(stage.displayState == StageDisplayState.FULL_SCREEN) { Application.application.stage.displayState = StageDisplayState.NORMAL; button.label = "View Fullscreen Mode"; stage.scaleMode = StageScaleMode.NO_SCALE; } else { Application.application.stage.displayState = StageDisplayState.FULL_SCREEN; button.label = "Exit Fullscreen Mode"; stage.scaleMode = StageScaleMode.SHOW_ALL; } invalidateSizes(); // Calls invalidateSize() explicitly on several components. } catch(error:SecurityError) { Alert.show("The security settings of your computer prevent this from being displayed in fullscreen.","Error: "+error.name+" #"+error.errorID); } catch(error:Error) { Alert.show(error.message,error.name+" #"+error.errorID); }

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Showing/hiding a JPopupMenu from a JButton; FocusListener not working?

- by M. Joanis

Hi everyone, I needed a JButton with an attached dropdown style menu. So I took a JPopupMenu and attached it to the JButton in the way you can see in the code below. What it needs to do is this: show the popup when clicked hide it if clicked a second time hide it if an item is selected in the popup hide it if the user clicks somewhere else in the screen These 4 things work, but because of the boolean flag I'm using, if the user clicks somewhere else or selects an item, I have to click twice on the button before it shows up again. That's why I tried to add a FocusListener (which is absolutely not responding) to fix that and set the flag false in these cases. Here are the listeners: (It's in a class extending JButton, so the second listener is on the JButton.) // Show popup on left click. menu.addFocusListener(new FocusListener() { @Override public void focusLost(FocusEvent e) { System.out.println("LOST FOCUS"); isShowingPopup = false; } @Override public void focusGained(FocusEvent e) { System.out.println("GAINED FOCUS"); } }); addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { System.out.println("isShowingPopup: " + isShowingPopup); if (isShowingPopup) { isShowingPopup = false; } else { Component c = (Component) e.getSource(); menu.show(c, -1, c.getHeight()); isShowingPopup = true; } } }); I've been fighting with this for way too long now. If someone can give me a clue about what's wrong with this, it would be great! Thanks!

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Resizing layouts for orientation change?

- by Cole

Normal: Landscape: See how the ListView overlaps other things on the screen when in landscape mode? How can I keep this from happening? XML: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" android:id="@+id/main" > <RelativeLayout android:id="@+id/myWishLists" android:layout_width="fill_parent" android:layout_height="50dp"> <Spinner android:id="@+id/spinner1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:prompt="@string/optionsSpinner" android:entries="@array/options" /> </RelativeLayout> <TextView android:id="@+id/myListsText" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/myWishLists" android:layout_centerHorizontal="true" android:text="My Wish Lists" android:textStyle="bold" android:textAppearance="?android:attr/textAppearanceLarge" /> <RelativeLayout android:id="@+id/listsList" android:layout_width="fill_parent" android:layout_height="445dp" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true"> <ListView android:id="@+id/lists" android:layout_width="fill_parent" android:layout_height="fill_parent" android:entries="@array/entries" > </ListView> </RelativeLayout> </RelativeLayout>

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UINavigationController placement problem

- by Chonch

Hey, I'm having this problem and I can't seem to figure out why! I want to use a UINavigationController, but I don't want to use it through out the entire application. So, in the UIViewController I was to add it to, I define: UINavigationController *navigationController; and the @property, @synthesize and dealloc. In the viewDidLoad method, I add: navigationController = [[UINavigationController alloc] init]; navigationController.navigationBar.barStyle = UIBarStyleBlack; and when the relevant UIViewController is loaded, I add: [navigationController pushViewController:viewController animated:NO]; and make the old view disappear and the UINavigationController's view to appear. Everything works fine except that the navigation bar appears about 20pixels too low (dragging the entire view down and out of the screen). If I set the UINavigationController's view frame parameter manually to start at 0,0, it jumps there, but only after about a second, so that you can see the navigation bar starting at a certain location and only then jumping to another (and it is ugly!). I have done the exact same thing in the past and had no problem with it. Does anyone know what may cause this? Thanks,

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Tablet as Car Computer

- by Austin Fitzpatrick

Okay, so forward this off to the right place if this isn't the right place to ask this question. I want to use a tablet computer as a car-computer. Minimum features would be to run my music (through iPod, Pandora, whatever I want) and GPS Navigation, watch TV or movies while I'm parked waiting for people, and the hard one: it needs to answer my phone calls with a pleasant interface much like in-dash systems do. It needs to detect that my phone is ringing in my pocket and provide an on-screen answer/ignore and then route the audio through the cars speakers. It would be nice to dial out and have address book access, but that is somewhat secondary. I have an iPhone myself and I figured that an iPad with 3G might make a good system for this - but I'm open to other options if an iPad can't do everything I need. I'm willing to write code, and I'm willing to jailbreak one or both devices. I haven't done much work in Obj-C, but I'm not opposed to learning a new language for this project. It's self enrichment for the most part, as I'm sure I can buy an indash entertainment system for less. Does anyone have experience with the iPhone/iPad SDK that can tell me whether or not it would be possible to get it an iPad to answer my calls in the car? What about an Android tablet? (that Adam looks promising, too).

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Umbraco XSLT issue

- by Brad

I'm trying to use the Umbraco GetMedia function to write an image URL to the screen, I receive an error parsing the XSLT file. <xsl:for-each select="$currentPage/descendant::node [string(data [@alias='tickerItemActive']) = '1']"> <xsl:value-of select="data [@alias='tickerText']"/><br /> <xsl:value-of select="umbraco.library:GetMedia(data [@alias='tickerImage'], 0)/data [@alias = 'umbracoFile']"/> </xsl:for-each> The tickerImage field contains the MediaID for which I'd like to display the URL. I can return the field outside the GetMedia function and it works fine. I can also replace the data [@alias='tickerImage] with '1117' (or any valid media ID) the XSLT passes verification and the script runs. THIS WORKS: <xsl:value-of select="umbraco.library:GetMedia('1117', 0)/data [@alias = 'umbracoFile']"/> THIS DOES NOT: <xsl:value-of select="umbraco.library:GetMedia(data [@alias='tickerImage'], 0)/data [@alias = 'umbracoFile']"/> Any help that can be offered would is appreciated. Thanks!

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Using Sendkeys in python to press {F12} results in other keys pressed?

- by ThantiK

import time from ctypes import * import win32gui import win32com.client as comclt X = 119 Y = 53 def PILColorToRGB(pil_color): """ convert a PIL-compatible integer into an (r, g, b) tuple """ hexstr = '%06x' % pil_color # reverse byte order r, g, b = hexstr[4:], hexstr[2:4], hexstr[:2] r, g, b = [int(n, 16) for n in (r, g, b)] return (r, g, b) wsh = comclt.Dispatch("WScript.Shell") w = win32gui user = windll.LoadLibrary("c:\\windows\\system32\\user32.dll") h = user.GetDC(0) gdi = windll.LoadLibrary("c:\\windows\\system32\\gdi32.dll") while True: FG = w.GetWindowText(w.GetForegroundWindow()) #FG = Foreground window title. if FG == "World of Warcraft": rgb = (PILColorToRGB(gdi.GetPixel(h,X,Y))) #X, Y time.sleep(0.333) #don't check too often. if (rgb[0] >= 130): #While Pixel (X, Y) is Red... #print "%d %d %d" % (rgb[0], rgb[1], rgb[2]) #Debug wsh.SendKeys("{F12}") #Send a key. time.sleep(0.7) #Add some extra down-time if we send the key. else: time.sleep(5) Basically all this code does is read a pixel on the screen, and send a key (F12) if the pixel is red. But when using this code I regularly get some phantom key-code being pressed. The application I'm using this on is obviously world of warcraft, and I have checked that all keybinds are standard keybinds. However randomly it seems I get either an up arrow, or a w pressed, which moves my character forward whenever this code executes (F12 is bound to a macro, unbound from any movement. If I press f12 with a hardware event, it does not exhibit this behavior. What in the world could be going on here?

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IE9 selectAllChildren on an out-of-view element

- by MrSlayer

I am trying to replicate a service that is provided by Tynt.com that appends some text to a user's selection when copying. I understand that users don't particularly like this, but it is a client's request to append the URL and copyright notice whenever a user copies something from their website. In current browsers, I am able to do this by creating a DOM element, adding the selected text, appending the copyright text and then selecting the new node: var newSelection = document.createElement( 'div' ); newSelection.style.cssText = "height: 1px; width: 1px; overflow: hidden;"; if( window.getSelection ) { var selection = window.getSelection( ); if( selection.getRangeAt ) { var range = selection.getRangeAt( 0 ); newSelection.appendChild( range.cloneContents( ) ); appendCopyright( ); document.body.appendChild( newSelection ); selection.selectAllChildren( newSelection ); // ... remove element, return selection } } In IE9, this errors out on the selection.selectAllChildren( newSelection ) statement and I was able to figure out that this is because newSelection was effectively "hidden" from the viewport due to the styles applied in the second line above. Commenting that out works, but obviously the new node is shown to the end user. It appears that this was resolved in later versions of IE, but I am having trouble coming up with a workaround that is sufficient for IE9, a browser that I need to support. I've tried a variety of alternatives, like setting visibility: hidden;, positioning it off-screen, and trying some alternative selection functions, but they each present different problems. The error thrown by IE is: SCRIPT16389: Unspecified error.

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R: dev.copy2pdf, multiple graphic devices to a single file, how to append to file?

- by Timtico

Hi everybody, I have a script that makes barplots, and opens a new window when 6 barplots have been written to the screen and keeps opening new graphic devices whenever necessary. Depending on the input, this leaves me with a potential large number of openened windows (graphic devices) which I would like to write to a single PDF file. Considering my Perl background, I decided to iterate over the different graphics devices, printing them out one by one. I would like to keep appending to a single PDF file, but I do not know how to do this, or if this is even possible. I would like to avoid looping in R. :) The code I use: for (i in 1:length(dev.list()) { dev.set(which = dev.list()[i] dev.copy2pdf(device = quartz, file = "/Users/Tim/Desktop/R/Filename.pdf") } However, this is not working as it will overwrite the file each time. Now is there an append function in R, like there is in Perl. Which allows me to keep adding pages to the existing pdf file? Or is there a way to contain the information in a graphic window to a object, and keep adding new graphic devices to this object and finally print the whole thing to a file? Other possible solutions I thought about: writing different pdf files, combining them after creation (perhaps even possible in R, with the right libraries installed?) copying the information in all different windows to one big graphic device and then print this to a pdf file.

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How can I disable the CTRL-ALT-DEL key combination completely on XP/Vista/7?

- by Travesty3

I have been googling extensively to figure this out, and nobody seems to be able to give a direct answer. Let me start by saying that I'm NOT talking about requiring CTRL-ALT-DEL to enter logon information. I'm working on a golf simulator program which is used at golf centers. I need the ability to completely disable the CTRL-ALT-DEL key sequence so that the golf center customers can't get out of the program and access the computer at all. I realize there are other key combinations that need to be handled as well, we already have this entire feature working in XP, but we're going to be switching to Windows 7 soon, and CTRL-ALT-DEL is the only one that doesn't seem to work in Win7. I'd really like an all-around solution if at all possible. This same program may also be installed on a client's personal computer for an in-home golf simulator, but the computers that really need this feature (golf center computers) are provided to the golf center by us, so would the best option be to write a new shell? I don't know anything about that at all, other than others that suggest writing a new shell for kiosk mode. I'd really like a simpler option, like modifying the registry in some way. I have heard that you can remove some buttons from the menu screen that pops up, but unless I can remove pretty much all of them (including the shutdown/restart button in the bottom-right corner), this won't be enough of a solution for me. Thanks for taking the time to read this and thanks again for any help you could provide! -Travis

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ASP.NET Chart Control errors in Event Viewer

- by Richard Reddy

Hi, I have been using the ASP.NET chart controls for a while on win2k3 (32bit) setups without any issue but have noticed that on our new win2k8 (64bit) box I am getting a warning message showing up in the event viewer from the chart control. In my web.config file I have the following tag telling the Chart Control where I can store the Temp Files: <add key="ChartImageHandler" value="storage=file;timeout=20;dir=c:\TempImageFiles\;" /> Below is the warning message produced by the control: Event code: 3005 Event message: An unhandled exception has occurred. Event time: 10/7/2009 2:40:03 PM Event time (UTC): 10/7/2009 2:40:03 PM Event ID: 237c3b208962429e8bbc5a48ffd177f0 Event sequence: 2860 Event occurrence: 26 Event detail code: 0 Application information: Application domain: /LM/W3SVC/2/ROOT-1-128993655360497729 Trust level: Full Application Virtual Path: / Application Path: C:\data\sites\mydomain.com\ Machine name: 231692-WEB Process information: Process ID: 4068 Process name: w3wp.exe Account name: NT AUTHORITY\NETWORK SERVICE Exception information: Exception type: ArgumentException Exception message: The image is not found. Request information: Request URL: http://www.mydomain.com/ChartImg.axd?i=chart%5F0%5F3.png&g=bccc8aa11abb470980c60e8cf1e71e15 Request path: /ChartImg.axd User host address: my domain ip User: Is authenticated: False Authentication Type: Thread account name: NT AUTHORITY\NETWORK SERVICE Thread information: Thread ID: 7 Thread account name: NT AUTHORITY\NETWORK SERVICE Is impersonating: False Stack trace: at System.Web.UI.DataVisualization.Charting.ChartHttpHandler.ProcessSavedChartImage(HttpContext context) at System.Web.UI.DataVisualization.Charting.ChartHttpHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) It's worth pointing out that ALL of the chart images are displayed correctly on the screen so I'm not sure when/where the image not found error is being caused. Is this a 64bit issue? Thanks, Rich

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How to avoid an HttpException due to timeout

- by Dan

I'm working on a website powered by .NET asp/C# code. The clients require that sessions have a 25 minute timeout. However, sometimes the site is used, and a user stays connected for long periods of time (longer than 25 mins). Session_End is triggered: protected void Session_End(Object sender, EventArgs e) { Hashtable trackingInformaiton = (Hashtable)Application["trackingInformation"]; trackingInformaiton.Remove(Session["trackingID"]); } The user returns some time later, but when they interact with the website, they get an error, and we get this email notification: User: Unauthenticated User Error: System.Web.HttpException Description: Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request... The telling part of the stack trace is System.Web.UI.Control.AddedControl. Apparently, the server has thrown away the session data, and is sending new data, but the client is trying to deal with old data. Hence the error that "the control tree into which viewstate is being loaded [doesn't] match the control tree that was used to save the viewstate during the prevoius request." So here's the question. How can I force instruct the user's browser to redirect to a "you're logged out" screen when the connection times out? (Is it something I should add to the Session_End method?)

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Converting from Latitude/Longitude to Cartesian Coordinates with a World File and map image.

- by Heath

I have a java applet that allows users to import a jpeg and world file from the local system. The user can then "click" draw lines on the image that was imported. Each endpoint of each line contains a set of X/Y and Lat/Long values. The XY is standard java coordinate space, the applet uses an affine transform calculation with the world file to determine the lat/long for every point on the canvas. I have a requirement that allows a user to type a distance into a text field and use the arrow key to draw a line in a certain direction (Up, Down, Left, Right) from a single selected point on the screen. I know how to determine the lat/long of a point given a source lat/long, distance, and bearing. So a user types "100" in the text field and presses the Right arrow key a line should be drawn 100 feet to the right from the currently selected point. My issue is I don't know how to convert the distance( which is in feet ) into the distance in pixels. This would then tell my where to plot the point.

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