ThemedWindow.UseNativeWindow Property

Gets or sets whether the operating system’s native window is used to round a ThemedWindow instance’s corners.

Namespace: DevExpress.Xpf.Core

Assembly: DevExpress.Xpf.Core.v25.2.dll

NuGet Package: DevExpress.Wpf.Core

Declaration

C#

public static bool UseNativeWindow { get; set; }

VB.NET

Public Shared Property UseNativeWindow As Boolean

Property Value

Type	Description
Boolean	true to use the operating system’s native window; otherwise, false.

Remarks

The following code sample sets the UseNativeWindow property to true to round ThemedWindow corners:

App.xaml.cs

using DevExpress.Xpf.Core;
//...

public partial class App {
    protected override void OnStartup(StartupEventArgs e) {
        base.OnStartup(e);
        ThemedWindow.UseNativeWindow = true;  
    }
}

App.xaml.vb

Imports DevExpress.Xpf.Core

Public Partial Class App
    Protected Overrides Sub OnStartup(ByVal e As StartupEventArgs)
        MyBase.OnStartup(e)
        ThemedWindow.UseNativeWindow = True
    End Sub
End Class

DevExpress WPF Controls include the UseNativeWindow and ThemedWindow.RoundCorners properties that allow you to round window corners and replicate the Windows 11 application appearance.

The following table describes whether your application’s corners are rounded depending on your Windows version, applied DevExpress Theme, and the UseNativeWindow and RoundCorners property values:

Windows Version	Applied DevExpress Theme	UseNativeWindow		RoundCorners
		true	false	true	false
Windows 11	Win11Light/Win11Dark
	non-Win11Light/Win11Dark
Windows 10 and earlier	Win11Light/Win11Dark	[1]
	non-Win11Light/Win11Dark

Limitations

• If the UseNativeWindow and ThemedWindow.EnableAcrylic property values are true, your application’s appearance will be broken.

• If the UseNativeWindow property’s value is true, the ThemedWindow.UseGlowColors property has no effect.

Footnotes

1. Your application’s appearance will be broken.