DesktopUIControl.AllowAutoDeactivate

From Xojo Documentation

Property (As Boolean )
aDesktopUIControl.AllowAutoDeactivate = newBooleanValue
or
BooleanValue = aDesktopUIControl.AllowAutoDeactivate

New in 2021r3

Supported for all project types and targets.

Determines whether the control should be deactivated (on macOS) when the parent window is deactivated. The default is True.