net9.0-windows10.0.22621 
namespace Windows.UI.Xaml.Controls.Primitives
{
    [ContentProperty(Name = "Child")]
    [ContractVersion(typeof(UniversalApiContract), 65536U)]
    [ProjectedRuntimeClass(typeof(IPopup))]
    [SupportedOSPlatform("Windows10.0.10240.0")]
    [WindowsRuntimeHelperType(typeof(Popup))]
    [WindowsRuntimeType("Windows.Foundation.UniversalApiContract")]
    public sealed class Popup : FrameworkElement, IEquatable<Popup>, ICustomQueryInterface, IDynamicInterfaceCastable, IUnmanagedVirtualMethodTableProvider, IWinRTObject
    {
        public static bool operator ==(Popup x, Popup y);
    }
}
nuget.org
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Reference this API
.NET 5.06.07.08.09.0
Information specific to net9.0
Platforms This API is only available when you target a specific platform:
Windows 10.0.1776310.0.1836210.0.1904110.0.2034810.0.22621
Information specific to net9.0-windows10.0.22621
Assembly

Microsoft.Windows.UI.Xaml , Version=10.0.22621.52, PublicKeyToken=31bf3856ad364e35

Referencing

The API is automatically referenced.

Platform Restrictions

This API is only supported on the following platforms:

  • Windows >= 10.0.10240
  • Built-in API
  • Package-provided API