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  • ASP.NET AJAX UpdatePanel problem

    - by Velika
    I'll try and be concise: 1) I have a dropdownlist with Autopostback set to TRUE 2) I have an UpdatePanel that contains a Label. 3) When the downdownlist selection is changed, I want to update the label. Problem: Focus is lost on the dropdownlist, forcing the user to click on the dropdownlist to reset focus back to the control. My "solution": In the DropDownList_SelectionChanged event, set focus back to the drop down list: dropdownlist1.focus() Problem: While this works great in IE, Firefox and Chrome change the scroll position such that the control which was assigned focus is positioned at the bottom on the visible portion of the browser window. This is often a very disorientating side effect. How can this be avoided so it works in FF as it does in IE?

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  • RegEx to extract all HTML tag attributes including inline JavaScript

    - by Mike
    I found this useful regex code here while looking to parse HTML tag attributes: (\S+)=["']?((?:.(?!["']?\s+(?:\S+)=|[>"']))+.)["']? It works great, but it's missing one key element that I need. Some attributes are event triggers that have inline Javascript code in them like this: onclick="doSomething(this, 'foo', 'bar');return false;" Or: onclick='doSomething(this, "foo", "bar");return false;' I can't figure out how to get the original expression to not count the quotes from the JS (single or double) while it's nested inside the set of quotes that contain the attribute's value.

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  • CheckBox ListView SelectedValues DependencyProperty Binding

    - by Ristogod
    I am writing a custom control that is a ListView that has a CheckBox on each item in the ListView to indicate that item is Selected. I was able to do so with the following XAML. <ListView x:Class="CheckedListViewSample.CheckBoxListView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" mc:Ignorable="d"> <ListView.Style> <Style TargetType="{x:Type ListView}"> <Setter Property="SelectionMode" Value="Multiple" /> <Style.Resources> <Style TargetType="ListViewItem"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="ListViewItem"> <Border BorderThickness="{TemplateBinding Border.BorderThickness}" Padding="{TemplateBinding Control.Padding}" BorderBrush="{TemplateBinding Border.BorderBrush}" Background="{TemplateBinding Panel.Background}" SnapsToDevicePixels="True"> <CheckBox IsChecked="{Binding IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ListViewItem}}}"> <CheckBox.Content> <ContentPresenter Content="{TemplateBinding ContentControl.Content}" ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}" HorizontalAlignment="{TemplateBinding Control.HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding Control.VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" /> </CheckBox.Content> </CheckBox> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> </Style.Resources> </Style> </ListView.Style> </ListView> I however am trying to attempt one more feature. The ListView has a SelectedItems DependencyProperty that returns a collection of the Items that are checked. However, I need to implement a SelectedValues DependencyProperty. I also am implementing a SelectedValuesPath DependencyProperty. By using the SelectedValuesPath, I indicate the path where the values are found for each selected item. So if my items have an ID property, I can specify using the SelectedValuesPath property "ID". The SelectedValues property would then return a collection of ID values. I have this working also using this code in the code-behind: using System.Windows; using System.Windows.Controls; using System.ComponentModel; using System.Collections; using System.Collections.Generic; namespace CheckedListViewSample { /// <summary> /// Interaction logic for CheckBoxListView.xaml /// </summary> public partial class CheckBoxListView : ListView { public static DependencyProperty SelectedValuesPathProperty = DependencyProperty.Register("SelectedValuesPath", typeof(string), typeof(CheckBoxListView), new PropertyMetadata(string.Empty, null)); public static DependencyProperty SelectedValuesProperty = DependencyProperty.Register("SelectedValues", typeof(IList), typeof(CheckBoxListView), new PropertyMetadata(new List<object>(), null)); [Category("Appearance")] [Localizability(LocalizationCategory.NeverLocalize)] [Bindable(true)] public string SelectedValuesPath { get { return ((string)(base.GetValue(CheckBoxListView.SelectedValuesPathProperty))); } set { base.SetValue(CheckBoxListView.SelectedValuesPathProperty, value); } } [Bindable(true)] [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)] [Category("Appearance")] public IList SelectedValues { get { return ((IList)(base.GetValue(CheckBoxListView.SelectedValuesPathProperty))); } set { base.SetValue(CheckBoxListView.SelectedValuesPathProperty, value); } } public CheckBoxListView() : base() { InitializeComponent(); base.SelectionChanged += new SelectionChangedEventHandler(CheckBoxListView_SelectionChanged); } private void CheckBoxListView_SelectionChanged(object sender, SelectionChangedEventArgs e) { List<object> values = new List<object>(); foreach (var item in SelectedItems) { if (string.IsNullOrWhiteSpace(SelectedValuesPath)) { values.Add(item); } else { try { values.Add(item.GetType().GetProperty(SelectedValuesPath).GetValue(item, null)); } catch { } } } base.SetValue(CheckBoxListView.SelectedValuesProperty, values); e.Handled = true; } } } My problem is that my binding only works one way right now. I'm having trouble trying to figure out how to implement my SelectedValues DependencyProperty so that I could Bind a Collection of values to it, and when the control is loaded, the CheckBoxes are checked with items that have values that correspond to the SelectedValues. I've considered using the PropertyChangedCallBack event, but can't quite figure out how I could write that to achieve my goal. I'm also unsure of how I find the correct ListViewItem to set it as Selected. And lastly, if I can find the ListViewItem and set it to be Selected, won't that fire my SelectionChanged event each time I set a ListViewItem to be Selected?

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  • Data table to Excel conversion leaves my server side button non responsive in SharePoint WebPart

    - by Nikhil Vaghela
    We have a web part on which we display some data in a grid. We are exporting grid's underlying datatable to Excel and displaying Open - Save - Cancel dialouge box on click of a server side button. Following is the code we are executing on click of server side button. this.Page.Response.Clear(); this.Page.Response.AppendHeader("Content-Disposition", "attachment; filename=MyTasks.xls"); this.Page.Response.ContentType = "application/ms-excel"; this.Page.Response.Write("...here goes my well formated html...."); this.Page.Response.End(); Problem is that when i click on Cancel in the diaglouge box then dialogue box to Open/Save excel disappears but all the server side buttons placed on my web part becomes non responsive, on click of any of those buttons their server side click event does not get fired !!! Any idea ? Thanks.

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  • Accessing and binding events to an ASP.NET Grid view using Jquery

    - by Sayem Ahmed
    I have an ASP page which displays a text box when it loads. It takes an input number, send it to the server through post back, and then displays some record in a grid view. After a number is input into the box, the server fetches some data from a database and add records to the grid view. It also contains a link column, whose URL is set to "#", so that the page isn't redirected when it is clicked. Now I want to bind a jquery "click" event to that link. How can I do that ? I have tried that to do myself but failed, because it is not available when the DOM is loaded (since it only contains rows when a number is input through the box), and is being modified through ASP.NET Ajax post back.

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  • on some Windows machines, skinned applications sometimes loses their skin. any ideas?

    - by Lior
    Hi we are developing a skinned application, and under vista/windows 7, on some machines, skinned applications sometimes loses their skin. here's an example for the problem, and here's how the application looks when it's good. this happens to us whether we develop with native Win32 API or in QT. It happens spontanously, with no event that might explain it. btw, we see it happens sometimes to some other applications, too we solve it by repainting everything every 2-3 seconds. but this is an ugly hack... any ideas why this could happen? thanks _very_much_ for any lead - Lior

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  • Mac OS X pygame input goes to Terminal instead of Python

    - by Parappa
    I'm having trouble running a pygame based app on Mac OS X via Terminal. Input events such as keystrokes go to the Terminal instead of my Python app, and are detected by pygame. For example, I have the following test script: import pygame pygame.init() screen = pygame.display.set_mode((640, 480)) done = False while not done: pygame.event.pump() keys = pygame.key.get_pressed() if keys[pygame.K_ESCAPE]: done = True if keys[pygame.K_SPACE]: print "got here" Neither K_ESCAPE nor K_SPACE will be handled by this script when I run it from a Mac OS X Terminal, but Terminal will echo back the spaces. I'm running the MacPorts port of pygame (py-game), which depends on Python 2.4, and I've also used python_select to make python24 the active version.

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  • Quickly check which part of the page lifecycle a control is in

    - by Khanzor
    Is there any way to check what events have fired during the asp.net webforms page/control lifecycle? I know that I can manually add handlers for each event, but that seems a bit ... inefficient. Is there a visualiser, or a property that I can check that will tell me whether these events have fired? EDIT The reason I want to know this is that I am overriding the ViewState property of a custom control, and the viewstate disappears at some point, and I'd like to know at which point in the page lifecycle it is being overriden.

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  • Render a user control ascx

    - by Jeremy
    I want to use an ascx as a template, and render it programatically, using the resulting html as the return value of an ajax method. Page pageHolder = new Page(); MyUserControl ctlRender = (MyUserControl)pageHolder.LoadControl(typeof(MyUserControl),null); pageHolder.Controls.Add(ctlRender); System.IO.StringWriter swOutput = new System.IO.StringWriter(); HttpContext.Current.Server.Execute(pageHolder, swOutput, false); return swOutput.ToString(); This all executes, and the Page Load event of the user control fires, but the StringWriter is always empty. I've seen similar code to this in other examples, what am I missing?

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  • Hidden features of WPF and XAML?

    - by Sauron
    Here is a large number of hidden features discussed for variety of languages. Now I am curious about some hidden features of XAML and WPF? One I have found is the header click event of a ListView <ListView x:Name='lv' Height="150" GridViewColumnHeader.Click="GridViewColumnHeaderClickedHandler"> The GridViewColumnHeader.Click property is not listed. Some of relevant features so far: Multibinding combined with StringFormat TargetNullValue to bindings TextTrimming property Markup extensions Adding Aero effect to Window Advanced "caption" properties XAML Converters See also: Hidden features of C# Hidden features of Python Hidden features of ASP.NET Hidden features of Perl Hidden features of Java Hidden features of VB.NET Hidden features of PHP Hidden features of Ruby Hidden features of C And So On........

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  • QProcess, QEventLoop - of any use for parallel-processing

    - by dlib
    I wonder whether I could use QEventLoop (QProcess?) to parallelize multiple calls to same function with Qt. What is precisely the difference with QtConcurrent or QThread? What is a process and an event loop more precisely? I read that QCoreApplication must exec() as early as possible in main() method, so that I wonder why it is different from main Thread. could you point as some efficient reference to processes and thread with Qt? I came through the official doc and those things remain unclear. Thanks and regards.

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  • SQLDependency thread

    - by user171523
    i am in the process implementing SQLdepenency i would like to know in case of Dependency Handler exeuctues will it spun a different thred from main Process ? What will happen when the event handler triggers? Do i need to worry about any multithreds issues? public void CreateSqlDependency() { try { using (SqlConnection connection = (SqlConnection)DBFactory.GetDBFactoryConnection(Constants.SQL_PROVIDER_NAME)) { SqlCommand command = (SqlCommand)DBFactory.GetCommand(Constants.SQL_PROVIDER_NAME); command.CommandText = watchQuery; command.CommandType = CommandType.Text; SqlDependency dependency = new SqlDependency(command); //Create the callback object dependency.OnChange += new OnChangeEventHandler(this.QueueChangeNotificationHandler); SqlDependency.Start(connectionString); DataTable dataTable = DBFactory.ExecuteSPReDT(command); } } catch (SqlException sqlExp) { throw sqlExp; } catch (Exception ex) { throw ex; } } public void QueueChangeNotificationHandler(object caller, SqlNotificationEventArgs e) { if(e.Info == SqlNotificationInfo.Insert) Fire(); }

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  • iTunes Visualization -- What type of code is it written in and what does that code look like?

    - by Christopher Altman
    Being a web developer, I know how event driven user interfaces are written, but do not have insight into other families of code (embedded software like automotive software, automation software on assembly lines, drivers, or the crawling lower-thirds on CNN, etc.) I was looking at the iTunes visualizer (example) and am curious: What code is used to write the visualizer? Objective C? Does it use Core Animation? What type of abstraction does that library offer? What does the code look like? Is it a list of mathematical equations for producing the crazy graphics? Is it a list of key frames with tweening? Is there an array of images, fractals, worm holes, flowers, sparkles, and some magic mixes them together. Or something totally different? I am not looking for a tutorial, just an understanding of how something very different than web development works. Oh yah, I know iTunes is closed source, so all of this is conjecture.

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  • Java Swing GUI exception - Exception in thread "AWT-EventQueue-0" java.util.NoSuchElementException:

    - by rgksugan
    I get this exception when i run my application. I dont have any idea what is going wrong here. Can someone help please. Exception in thread "AWT-EventQueue-0" java.util.NoSuchElementException: Vector Enumeration at java.util.Vector$1.nextElement(Vector.java:305) at javax.swing.plaf.basic.BasicTableHeaderUI.getPreferredSize(BasicTableHeaderUI.java:778) at javax.swing.JComponent.getPreferredSize(JComponent.java:1634) at javax.swing.ViewportLayout.preferredLayoutSize(ViewportLayout.java:78) at java.awt.Container.preferredSize(Container.java:1599) at java.awt.Container.getPreferredSize(Container.java:1584) at javax.swing.JComponent.getPreferredSize(JComponent.java:1636) at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:702) at java.awt.Container.layout(Container.java:1421) at java.awt.Container.doLayout(Container.java:1410) at java.awt.Container.validateTree(Container.java:1507) at java.awt.Container.validate(Container.java:1480) at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:669) at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:124) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

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  • Graph API - Get events by owner/creator

    - by jwynveen
    Is there a way with the Facebook Graph API to get a list of all events created by a single profile? Our client creates a bunch of events and we want to pull a list of them all. I said that they would just have to make sure they set themselves to be attending the event, because then I can easily pull the list of events that profileId is attending, but I'm curious if there's another way. Maybe an FQL query? They look to require a query on the primary key though. And what would that FQL query look like if that's the way to do it??

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  • Django version in GAE

    - by Alex
    I'm tring to use Django 1.1 in GAE, But when I uncomment use_library('django', '1.1') in this script import os os.environ['DJANGO_SETTINGS_MODULE'] = 'settings' from google.appengine.dist import use_library #use_library('django', '1.1') # Google App Engine imports. from google.appengine.ext.webapp import util # Force Django to reload its settings. from django.conf import settings settings._target = None import django.core.handlers.wsgi import django.core.signals import django.db import django.dispatch.dispatcher # Unregister the rollback event handler. django.dispatch.dispatcher.disconnect( django.db._rollback_on_exception, django.core.signals.got_request_exception) def main(): # Create a Django application for WSGI. application = django.core.handlers.wsgi.WSGIHandler() # Run the WSGI CGI handler with that application. util.run_wsgi_app(application) if __name__ == "__main__": main() I receives AttributeError: 'module' object has no attribute 'disconnect' What is going on?

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  • Recording user data for heatmap with javascript

    - by Hanpan
    Hi, I was wondering how sites such as crazyegg.com store user click data during a session. Obviously there is some underlying script which is storing each clicks data, but how is that data then populated into a database? It seems to me the simple solution would be to send data via AJAX but when you consider that it's almost impossible to get a cross browser page unload function setup, I'm wondering if there is perhaps some other more advanced way of getting metric data. I even saw a site which records each mouse movement and I am guessing they are definitely not sending that data to a database on each mouse move event. So, in a nutshell, what kind of technology would I need in order to monitor user activity on my site and then store this information in order to create metric data? I am not looking to recreate GA, I'm just very interested to know how this sort of thing is done. Thanks in advance

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  • How2 display Image from DB in datagrid?

    - by Saverio Tedeschi
    Hope it's not yet been answered, but I've googled for quite a long time, and I've not been able to get it working. In brief, I've a SL4 page with a DataGrid filled accordingly to parameters passed from the previous page, so I fill the context in code, with a "RIA" query (w/parameters as well). So far, so good. I get the XAML declared columns as expected but the Photo templated column, which holds just an image control. I think I can use the LoadingRow event, but can some1 give me some code on how to get my goal (image is in in the context from DB)? Thanks in advance

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  • How to Hide overflow scroller of DIV

    - by Rajesh Rolen- DotNet Developer
    I have set a fix height of DIV and set its overflow-y:scroll but the problem is that if i have got data less than its height event though its showing scroll bar (disabled). please tell me how can i hide it... i mean give me solution so that the scrollbar will only show when data in that DIV is crossing height of DIV.. My code : <div style="overflow-y:scroll; height:290px"> a data grid is here </div>

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  • maximum execution time for javascript

    - by Andrew Chang
    I know both ie and firefox have limits for javascript execution here: hxxp://support.microsoft.com/?kbid=175500 Based on number of statements executed, I heard it was 5 million somewhere in ie hxxp://webcache.googleusercontent.com/search?q=cache:_iKHhdfpN-MJ:kb.mozillazine.org/Dom.max_script_run_time+dom.max_script_run_time&hl=en&gl=ca&strip=1 (google cache since site takes forever to load for me) based on number of seconds in firefox, it's 10 seconds by default for my version The thing I don't get is what cases will go over these limits: I'm sure a giant loop will go over the limit for execution time But will an event hander go over the limit, if itself it's execution time is under the limit but if it occurs multiple times? Example: Lets say I have a timer on my page, that executes some javascript every 20 seconds. The execution time for the timer handler is 1 second. Does firefox and ie treat each call of the timer function seperatly, so it never goes over the limit, or is it that firefox/ie adds up the time of each call so after the handler finishes, so after 200 seconds on my site (with the timer called 10 times) an error occurs even though the timer handler itself is only 1 second long?

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  • Flex: Get an item from a AdvancedDataGrid given an index

    - by David Wolever
    I've got a subclass of AdvancedDataGrid showing a tree-like data structure. How can I, given the index returned by calculateDropIndex, get the item at that index? After reading through reams of code, it seems like the least terrible way is: var oldSelectedIndex:int = this.selectedIndex; var mouseOverIndex:int = this.calculateDropIndex(event); this.selectedItem = mouseOverIndex; var item:* = this.selectedItem; this.selectedIndex = oldSelectedIndex; The other option seems to be tinkering around with the iterator property... But, judging by the way I've seen it used, that will get pretty harry pretty quickly too. So, how can I get the item at a particular index in an advanced datagrid without going insane?

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  • FLex MouseEvent doesn't fire when Mouse stays over element

    - by Tomaszewski
    Hi, i'm trying to make a scrollable box, when a mouse enters and STAYS on "wrapper"'s area, "pubsBox" moves 10 pixels to the left. <mx:Canvas id="wrapper" height="80" width="750"> <mx:HBox id="pubsBox" horizontalGap="10" height="80" width="100%" /> </mx:Canvas> My problem is that I'm not sure how to make the MouseEvent.MOUSE_OVER work, to recognize that the mouse is still ON the area and so pubsBox should continue to move 10 pixels to the left every second. I understand that i have to use a Timer, but what I'm concerned about is the fact that I can't get Flex to recognize that the mouse is still OVER "wrapper" and continue firing the event. Any ideas?

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  • Is there anyway I can fix a webview?

    - by Legend
    I am trying to load a webpage into a sample webview that I created: public class HelloWebview extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); WebView webview; webview = (WebView) findViewById(R.id.webview); webview.getSettings().setDefaultZoom(ZoomDensity.FAR); webview.setHorizontalScrollBarEnabled(false); webview.setVerticalScrollBarEnabled(false); webview.getSettings().setJavaScriptEnabled(true); webview.loadUrl("http://10.0.2.2/index.html"); } } Initially, I had a problem with the scrollbars so I added the two lines to disable them. Now, I am still able to pan around the webpage though the scroll bars are not visible. How can I fix the view so that I am not able to pan (or scroll) the webpage? By panning, I mean moving around the webpage with an onTouch event.

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  • JQuery UI Drop Disable on selected elements

    - by Suneth Kalhara
    i want to add drop limit on circles, i wrote a scrit for dragging circles the problem is user can drop circle on another circle, i don't want to allow it, simply i need to revert if the user drag and drop circle on another circle. i write some codes for this. but this not working for me, it always revert the dropped circle. here is my example url http://webxtreams.net/demoprofiles004/circledragger.html here is js code i run on fire bug $(".circle").draggable({ revert: 'invalid' }); $(".circle").droppable({ accept: function(el) { return el.hasClass('.circle'); } }); please help me to do that. have another little question - can we track the reverting event on this, i need to repaint the lines when reverting the circle :)

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  • Changing drag cursor in VirtualTreeView

    - by Coder12345
    When using VirtualTreeView drag operation by default is [doCopy,doMove]. Move operation is indicated by arrow pointer with small box and Copy operation is indicated by same pointer icon but with added [+] next to it. By default VT uses copy operation and if you press modifier key (SHIFT key) it modifies operation to move therefore removing the [+] from pointer. Here is what I need: reverse the operations (default would be move, with modifier key pressed - copy) and thus reverse pointer arrow too replace modifier key - CTRL instead of SHIFT read in an event which of the two operations occurred and start copy or move operation Any pointers into right direction(s) appreciated.

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