WindowsFormsSettings.AllowRoundedWindowCorners Property

Specifies whether forms, dialogs, panels and tooltips have rounded corners. When this option is enabled, the form’s borders, including shadows, are drawn by the operating system. This option is only in effect in Windows 11.

Namespace: DevExpress.XtraEditors

Assembly: DevExpress.Utils.v25.1.dll

NuGet Packages: DevExpress.Utils, DevExpress.Wpf.Core

Declaration

C#

public static DefaultBoolean AllowRoundedWindowCorners { get; set; }

VB.NET

Public Shared Property AllowRoundedWindowCorners As DefaultBoolean

Property Value

Type	Description
DefaultBoolean	DefaultBoolean.Default or DefaultBoolean.False to display square corners; DefaultBoolean.True to display rounded corners.

Available values:

Name	Description	Return Value
True	The value is true.	0
False	The value is false.	1
Default	The value is specified by a global option or a higher-level object.	2

Remarks

The figure below illustrates a form with rounded corners:

Rounded corners are not supported for controls in OS versions older than Windows 11. No error is raised if you enable the AllowRoundedWindowCorners property in these Windows OS versions.