property HTML.BackColorLocked as Color
Retrieves or sets a value that indicates the control's background color when it is locked.

TypeDescription
Color A color expression that specifies the control's background color, while the control is locked 
The BackColorLocked property specifies the control's background while it is locked. The Locked property specifies whether the control is read-only. Use the Picture property to assign a picture on the control's background. The BackColor property specifies the control's background color, when the control is not locked.