TcxCustomLookAndFeelController.FormCorners Property

Specifies the corner shape of all skinned forms.

Declaration

property FormCorners: TdxFormCorners read; write; default dxDefaultSkinFormCorners;

Property Value

Type	Default	Description
TdxFormCorners	dxDefaultSkinFormCorners	The form corner shape.

Remarks

Use the FormCorners property to change the corner shape of skinned forms in an application.

Refer to the TdxFormCorners type description for information on available options.

Individual Form Corner Shapes

TdxSkinForm.FormCorners and TdxCustomRibbonForm.FormCorners properties allow you to override the global form corner shape setting at the level of individual forms.

Pop-Up Menu Corner Shapes

All pop-up menus in DevExpress controls used in an application have rounded corners when the following conditions are met:

• The application runs under Microsoft Windows® 11.
• The FormCorners property is set to fcDefault, fcRounded, or fcSmallRounded.
• The UseSkinsInPopupMenus property is set to True.

Limitations

Note

Rounded corners in skinned forms appear aliased under Microsoft Windows® 10 compared to Windows 11. We recommend that you use rounded corners for applications that target Microsoft Windows® 11 only.

Rounded form corner effects for Ribbon and Fluent Design forms^[1] have the following limitations when the application is running on Microsoft Windows® 10 or an earlier operating system version:

Ribbon Form

• Rounded corners are unavailable if acrylic effects are enabled.
• Rounded corners are unavailable for a form with thin^[2] skin-dependent borders^[3] if the form has no status bar.

Fluent Design Form

• Rounded corners are unavailable if the embedded navigation bar component encompasses the form’s non-client area.
• Rounded corners increase form border width if the original border width does not exceed 2 pixels at 96 DPI.

Default Value

The FormCorners property’s default value is fcDefault.

The default FormCorners property value indicates that the corner shape of a skinned application depends on the dxSkinFormCorners global constant value.

Footnotes

1. All other form types support all corner shapes only under Microsoft Windows® 11.

2. One-pixel border at 96 DPI.

3. This limitation affects the majority of bitmap-based skins.