procedure DoOnFolderChange; dynamic;
DYNAMIC void __fastcall DoOnFolderChange();
Call OnFolderChange event method if defined.
DoOnFolderChange calls the OnFolderChange event, if the event is defined. DoOnFolderChange is called before a directory is opened or closed from the dialog. Such changes happen when the user double-clicks on a directory, clicks the Up arrow, or uses the list box at the top of the dialog to navigate through the directory structure. The event occurs before the change.