support for .NET framework 3.5
Still have bugs
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namespace Microsoft.Windows.Shell
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{
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using System;
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using System.ComponentModel;
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using System.Threading;
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using System.Windows;
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using System.Windows.Input;
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using System.Windows.Media;
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[DefaultEvent("Click")]
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public sealed class ThumbButtonInfo : Freezable, ICommandSource
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{
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private static readonly DependencyProperty _CanExecuteProperty;
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private EventHandler _commandEvent;
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public static readonly DependencyProperty CommandParameterProperty;
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public static readonly DependencyProperty CommandProperty;
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public static readonly DependencyProperty CommandTargetProperty;
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public static readonly DependencyProperty DescriptionProperty = DependencyProperty.Register("Description", typeof(string), typeof(ThumbButtonInfo), new PropertyMetadata(string.Empty, null, new CoerceValueCallback(ThumbButtonInfo._CoerceDescription)));
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public static readonly DependencyProperty DismissWhenClickedProperty = DependencyProperty.Register("DismissWhenClicked", typeof(bool), typeof(ThumbButtonInfo), new PropertyMetadata(false));
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public static readonly DependencyProperty ImageSourceProperty = DependencyProperty.Register("ImageSource", typeof(System.Windows.Media.ImageSource), typeof(ThumbButtonInfo), new PropertyMetadata(null));
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public static readonly DependencyProperty IsBackgroundVisibleProperty = DependencyProperty.Register("IsBackgroundVisible", typeof(bool), typeof(ThumbButtonInfo), new PropertyMetadata(true));
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public static readonly DependencyProperty IsEnabledProperty = DependencyProperty.Register("IsEnabled", typeof(bool), typeof(ThumbButtonInfo), new PropertyMetadata(true, null, (d, e) => ((ThumbButtonInfo) d)._CoerceIsEnabledValue(e)));
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public static readonly DependencyProperty IsInteractiveProperty = DependencyProperty.Register("IsInteractive", typeof(bool), typeof(ThumbButtonInfo), new PropertyMetadata(true));
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public static readonly DependencyProperty VisibilityProperty = DependencyProperty.Register("Visibility", typeof(System.Windows.Visibility), typeof(ThumbButtonInfo), new PropertyMetadata(System.Windows.Visibility.Visible));
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public event EventHandler Click;
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static ThumbButtonInfo()
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{
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CommandProperty = DependencyProperty.Register("Command", typeof(ICommand), typeof(ThumbButtonInfo), new PropertyMetadata(null, (d, e) => ((ThumbButtonInfo) d)._OnCommandChanged(e)));
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CommandParameterProperty = DependencyProperty.Register("CommandParameter", typeof(object), typeof(ThumbButtonInfo), new PropertyMetadata(null, (d, e) => ((ThumbButtonInfo) d)._UpdateCanExecute()));
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CommandTargetProperty = DependencyProperty.Register("CommandTarget", typeof(IInputElement), typeof(ThumbButtonInfo), new PropertyMetadata(null, (d, e) => ((ThumbButtonInfo) d)._UpdateCanExecute()));
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_CanExecuteProperty = DependencyProperty.Register("_CanExecute", typeof(bool), typeof(ThumbButtonInfo), new PropertyMetadata(true, (d, e) => d.CoerceValue(IsEnabledProperty)));
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}
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private static object _CoerceDescription(DependencyObject d, object value)
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{
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string str = (string) value;
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if ((str != null) && (str.Length >= 260))
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{
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str = str.Substring(0, 0x103);
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}
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return str;
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}
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private object _CoerceIsEnabledValue(object value)
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{
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return (!((bool) value) ? ((object) 0) : ((object) this._CanExecute));
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}
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private void _HookCommand(ICommand command)
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{
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this._commandEvent = (sender, e) => this._UpdateCanExecute();
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command.CanExecuteChanged += this._commandEvent;
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this._UpdateCanExecute();
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}
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private void _InvokeCommand()
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{
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ICommand command = this.Command;
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if (command != null)
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{
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object commandParameter = this.CommandParameter;
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IInputElement commandTarget = this.CommandTarget;
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RoutedCommand command2 = command as RoutedCommand;
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if (command2 != null)
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{
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if (command2.CanExecute(commandParameter, commandTarget))
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{
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command2.Execute(commandParameter, commandTarget);
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}
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}
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else if (command.CanExecute(commandParameter))
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{
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command.Execute(commandParameter);
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}
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}
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}
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private void _OnCommandChanged(DependencyPropertyChangedEventArgs e)
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{
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ICommand oldValue = (ICommand) e.OldValue;
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ICommand newValue = (ICommand) e.NewValue;
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if (oldValue != newValue)
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{
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if (oldValue != null)
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{
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this._UnhookCommand(oldValue);
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}
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if (newValue != null)
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{
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this._HookCommand(newValue);
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}
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}
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}
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private void _UnhookCommand(ICommand command)
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{
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command.CanExecuteChanged -= this._commandEvent;
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this._commandEvent = null;
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this._UpdateCanExecute();
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}
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private void _UpdateCanExecute()
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{
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if (this.Command != null)
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{
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object commandParameter = this.CommandParameter;
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IInputElement commandTarget = this.CommandTarget;
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RoutedCommand command = this.Command as RoutedCommand;
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if (command != null)
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{
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this._CanExecute = command.CanExecute(commandParameter, commandTarget);
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}
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else
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{
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this._CanExecute = this.Command.CanExecute(commandParameter);
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}
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}
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else
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{
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this._CanExecute = true;
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}
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}
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protected override Freezable CreateInstanceCore()
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{
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return new ThumbButtonInfo();
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}
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internal void InvokeClick()
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{
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EventHandler click = this.Click;
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if (click != null)
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{
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click(this, EventArgs.Empty);
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}
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this._InvokeCommand();
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}
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private bool _CanExecute
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{
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get
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{
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return (bool) base.GetValue(_CanExecuteProperty);
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}
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set
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{
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base.SetValue(_CanExecuteProperty, value);
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}
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}
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public ICommand Command
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{
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get
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{
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return (ICommand) base.GetValue(CommandProperty);
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}
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set
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{
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base.SetValue(CommandProperty, value);
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}
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}
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public object CommandParameter
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{
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get
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{
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return base.GetValue(CommandParameterProperty);
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}
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set
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{
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base.SetValue(CommandParameterProperty, value);
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}
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}
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public IInputElement CommandTarget
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{
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get
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{
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return (IInputElement) base.GetValue(CommandTargetProperty);
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}
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set
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{
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base.SetValue(CommandTargetProperty, value);
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}
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}
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public string Description
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{
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get
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{
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return (string) base.GetValue(DescriptionProperty);
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}
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set
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{
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base.SetValue(DescriptionProperty, value);
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}
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}
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public bool DismissWhenClicked
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{
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get
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{
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return (bool) base.GetValue(DismissWhenClickedProperty);
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}
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set
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{
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base.SetValue(DismissWhenClickedProperty, value);
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}
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}
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public System.Windows.Media.ImageSource ImageSource
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{
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get
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{
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return (System.Windows.Media.ImageSource) base.GetValue(ImageSourceProperty);
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}
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set
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{
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base.SetValue(ImageSourceProperty, value);
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}
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}
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public bool IsBackgroundVisible
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{
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get
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{
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return (bool) base.GetValue(IsBackgroundVisibleProperty);
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}
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set
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{
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base.SetValue(IsBackgroundVisibleProperty, value);
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}
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}
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public bool IsEnabled
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{
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get
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{
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return (bool) base.GetValue(IsEnabledProperty);
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}
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set
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{
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base.SetValue(IsEnabledProperty, value);
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}
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}
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public bool IsInteractive
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{
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get
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{
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return (bool) base.GetValue(IsInteractiveProperty);
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}
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set
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{
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base.SetValue(IsInteractiveProperty, value);
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}
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}
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public System.Windows.Visibility Visibility
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{
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get
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{
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return (System.Windows.Visibility) base.GetValue(VisibilityProperty);
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}
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set
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{
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base.SetValue(VisibilityProperty, value);
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}
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}
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}
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}
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