net9.0-windows10.0.22621 
namespace Microsoft.UI.Composition
{
    [ContractVersion(typeof(WindowsAppSDKContract), 65536U)]
    [Guid("8F56119D-B96D-58D0-9916-D1C5E390F890")]
    [WindowsRuntimeHelperType(typeof(IAnimationObject))]
    [WindowsRuntimeType("Microsoft.UI")]
    public interface IAnimationObject
    {
        void PopulatePropertyInfo(string propertyName, AnimationPropertyInfo propertyInfo);
    }
}
nuget.org
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Reference this API
.NET
6.07.08.09.0
Information specific to net9.0
Platforms This API is only available when you target a specific platform:
Windows
10.0.1776310.0.1836210.0.1904110.0.2034810.0.2200010.0.22621
Information specific to net9.0-windows10.0.22621
Assemblies

Microsoft.InteractiveExperiences.Projection , Version=10.0.0.0, PublicKeyToken=31bf3856ad364e35

Microsoft.InteractiveExperiences.Projection , Version=10.0.0.0, PublicKeyToken=31bf3856ad364e35

Referencing

Your project needs a package reference to Microsoft.WindowsAppSDK.

Package Microsoft.WindowsAppSDK (1.6.250228001) net6.0-windows10.0.18362
Platform Restrictions

This API is only supported on the following platforms:

  • Windows
  • Built-in API
  • Package-provided API