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RadWindowInteropHelper

The RadWindowInteropHelper helper class assists for the interoperation between Windows Presentation Foundation (WPF) and Win32 code.

Here is a brief list of all attached properties exposed by the class:

  • ClipMaskCornerRadius: The CornerRadius used to create a clipping mask on the underlying Window.
  • AllowTransparency: Gets or sets the AllowTransparency property of the underlying Window.
  • OpaqueWindowBackground: The Brush used to render the Background of the underlying window if AllowTransparency is set to False.
  • Title: Gets or sets the Title used to display in the OS for the underlying Window.
  • Icon: Gets or sets the ImageSource used to display the Icon in the OS for the underlying Window.
  • ShowInTaskbar: Gets or sets the ShowInTaskbar property of the underlying Window.

Example 1 demonstrates how to set each of the properties both in XAML and code-behind while Figure 1 and Figure 2 illustrate the final result.

Example 1: Set RadWindowInteropHelper attached properties

<telerik:RadWindow x:Class="ProjectNamespace.CustomWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"&#13;    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"&#13;    xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"&#13;    xmlns:navigation="clr-namespace:Telerik.Windows.Controls.Navigation;assembly=Telerik.Windows.Controls.Navigation" 
    navigation:RadWindowInteropHelper.ClipMaskCornerRadius="0"
    navigation:RadWindowInteropHelper.AllowTransparency="False"
    navigation:RadWindowInteropHelper.OpaqueWindowBackground="Red"
    navigation:RadWindowInteropHelper.Title="Custom Window"
    navigation:RadWindowInteropHelper.Icon="icon.png"
    navigation:RadWindowInteropHelper.ShowInTaskbar="True" >
    <Grid>
    <!-- ... -->
    </Grid>
</telerik:RadWindow>

Example 1: Set RadWindowInteropHelper attached properties

RadWindowInteropHelper.SetClipMaskCornerRadius(this, new CornerRadius(0));
RadWindowInteropHelper.SetAllowTransparency(this, false);
RadWindowInteropHelper.SetOpaqueWindowBackground(this, Brushes.Red);
RadWindowInteropHelper.SetTitle(this, "Custom Window");
RadWindowInteropHelper.SetIcon(this, new BitmapImage(new Uri("../../icon.png", UriKind.RelativeOrAbsolute)));
RadWindowInteropHelper.SetShowInTaskbar(this, true);
RadWindowInteropHelper.SetClipMaskCornerRadius(Me, New CornerRadius(0))
RadWindowInteropHelper.SetAllowTransparency(Me, False)
RadWindowInteropHelper.SetOpaqueWindowBackground(Me, Brushes.Red)
RadWindowInteropHelper.SetTitle(Me, "Custom Window")
RadWindowInteropHelper.SetIcon(Me, New BitmapImage(New Uri("../../icon.png", UriKind.RelativeOrAbsolute)))
RadWindowInteropHelper.SetShowInTaskbar(Me, True)

Figure 1: The customized RadWindow

The customized RadWindow

Figure 1: The customized RadWindow's taskbar thumbnail preview

The customized RadWindow's taskbar thumbnail preview

See Also