Disable the item for user input and grey it out
Source position: MUIClass.Area.pas line 146
published property TMUIArea.Disabled : Boolean |
Disable or enable a gadget. Setting this attribute causes a gadget to become disabled, it gets a ghost pattern and doesn't respond to user input any longer.
Disabled gadgets cannot be activated with the TAB key.
Using Disable on a group of objects will disable all objects within that group.