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.v21.2.dll

NuGet Packages: DevExpress.Utils, DevExpress.Win.Design, 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
True	true. DefaultBoolean.True has a constant value of 0, while the standard true value corresponds to a value of 1. In Visual Basic, do not use implicit conversion of Boolean values to DefaultBoolean, and vice versa, as the conversion may produce incorrect results.
False	false. DefaultBoolean.False has a constant value of 1, while the standard false value corresponds to a value of 0. In Visual Basic, do not use implicit conversion of Boolean values to DefaultBoolean, and vice versa, as the conversion may produce incorrect results.
Default	The default behavior determined by the control’s logic.

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.