NonClientRegionSupportEnabled
Interface AntView
Type: Property
Access: Read/Write
Data Type: Boolean
This property determines if the CSS-Style "app-region" can be used or not. By allowing the CSS style we can define specific elements to behave like the application title bar for dragging purposes.
See also W3C csswgdrafts Standardizing app-region for draggable app windows #7017.
The default value is false.
Once you set the NonClientRegionSupportEnabled property to true, dragging the element that has the CSS style app-region applied as "drag" will then let you drag the whole application.
Right clicking the element that has app region set will show the title bar menu.
You'll have to navigate after making a change to this property in order to apply changes.
Testing shows that disabling this setting after it was enabled will not let you enable it again.
In the Microsoft .net interface this is called the CoreWebView2Settings.IsNonClientRegionSupportEnabled property
Introduced in AntView release 2.0.567
AntView - The MS Edge WebView2 ActiveX control Date last changed: 2026/07/13