property Enabled: Boolean;
Whether the TCAD control responds to mouse, keyboard, and timer events. but still effected by code action.
Use Enabled to change the availability of the TMyCAD to the user. To disable a control, set Enabled to false. Disabled TMyCAD appear dimmed. If Enabled is false, the TMyCAD ignores mouse, keyboard, and timer events.
To re-enable a control, set Enabled to true. The TMyCAD is no longer dimmed, and the user can use the TMyCAD.