MWAPI - Parents and Children 1995 Version of ANSI (Equivalent to Current ISO Version) of Standard

1.8 Parents and Children

Each window and element has a single parent. A window's parent is either the display on which it appears or another window. An element's parent is a window. If P is the parent of C, then C is a child of P.

A is an ancestor of C and C is a descendant of A if

1. A is the parent of C, or
2. there exist one or more windows (B₁ ... B_n) such that A is the parent of B₁, B_n is the parent of C, and, for x equal to B₁ through B_n-1, B_x is the parent of B_x+1.

A window or element inherits default values for certain attributes from its parent. A window or element cannot be created before its parent is created. A window or element can be created by the same M[UMPS] command that creates its parent.

P is a parent menu of S and S is a submenu of P if S is displayed when a choice in P is activated.

Copyright © Standard Documents; 1977-2018 MUMPS Development Committee;
Copyright © Examples: 1995-2018 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2018 Ed de Moel.

This page most recently updated on 13-Sep-2014, 11:28:43 .

For comments, contact Ed de Moel (demoel@jacquardsystems.com)