BCGControlBar Pro for MFC
void CBCGPEditCtrl::StopHidingCurrent ( )

Deletes a collapsible node(s) selected by user.

Used to delete collapsible node(s) selected by user. The function removes all outlining information inside the selection. Available only when auto-outlining is turned off.

If there is no collapsible node inside the selection or if there is no selection, then the function deletes the innermost collapsible node at the current cursor position.