File: Core\CSharp\System\Windows\Input\MouseButtonState.cs
Project: wpf\src\PresentationCore.csproj (PresentationCore)
using System;
namespace System.Windows.Input
{
    /// <summary>
    ///     The MouseButtonState enumeration describes the possible states
    ///     of the buttons available on the Mouse input device.
    /// </summary>
    /// <ExternalAPI Inherit="true"/>
    public enum MouseButtonState
    {
        /// <summary>
        ///    The button is released.
        /// </summary>
        Released,
        
        /// <summary>
        ///    The button is pressed.
        /// </summary>
        Pressed,
 
        // Update the IsValid helper in RawMouseState.cs if this enum changes.
    }
}