[Lazarus] Suppressing OnChange

[Timothy Groves]

Thanks to both responders.  I actually found another solution:

procedure TfrmMain.txtVolAuthorChange(Sender: TObject);
begin
   if (txtVolAuthor.Enabled) then
     VolumeList [CurrentVolume].Author := txtVolAuthor.Text;
end;

Then I just set txtVolAuthor.Enabled := false before manually updating it.