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copied!<p>You won't need dependency properties because you are inheriting from <code>Button</code>. You already have the <code>IsPressed</code> and <code>IsEnabled</code> properties. In fact, this is all you need:</p> <pre><code><Button x:Class="TestWpfApplication.ThreeStateImageButton" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <Button.Template> <ControlTemplate TargetType="{x:Type Button}"> <Grid> <Image Name="Normal" Source="Resources/Normal.png"/> <Image Name="Pressed" Source="Resources/Pressed.png" Visibility="Hidden"/> <Image Name="Disabled" Source="Resources/Disabled.png" Visibility="Hidden"/> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsPressed" Value="True"> <Setter TargetName="Normal" Property="Visibility" Value="Hidden"/> <Setter TargetName="Pressed" Property="Visibility" Value="Visible"/> </Trigger> <Trigger Property="IsEnabled" Value="False"> <Setter TargetName="Normal" Property="Visibility" Value="Hidden"/> <Setter TargetName="Disabled" Property="Visibility" Value="Visible"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Button.Template> </Button> </code></pre> <p>With your UserControl code-behind file:</p> <pre><code>public partial class ThreeStateImageButton : Button { public ThreeStateImageButton() { InitializeComponent(); } } </code></pre>

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