property SpellCtrl: IWPSpell read Get_SpellCtrl;
This property provides access to the interface IWPSpell which can be used to change the setup of the spellcheck controller. Please modify the setup parameter before you call SetEditorMode to avoid that the default setup is used.
You can also use the method CommandEx(9500, n, strparam) to execute some of the methods. This may be useful if you cannot access the interface in your developing language.