Window is a children of an other Window
Source position: intuition.pas line 3372
| function Is_Children( | 
| Win: PWindow | 
| ):Boolean; | 
| Win | 
 | Window check for parent window. | 
True if is window is a children windows (has a parent), False if not.
A window can be created as a children of a window by using WA_Parent in OpenWindowTagList.
| 
 | OpenWindow() with TagItem extension. | |
| 
 | Tag for OpenWindowTagList(). | |
| 
 | Window has an other windows as Children |