Returns the name of the parent window of the active or specified window.
Syntax
WPARENT([WindowName])
Returns
Character
Arguments
WindowName
Specifies a window whose parent window name WPARENT( ) returns. WPARENT( ) returns the empty string if the specified window doesn't have a parent window. If you omit WindowName, WPARENT( ) returns the name of the parent window of the active output window. WPARENT( ) returns the empty string if the active output window doesn't have a parent window.
Remarks
You can use DEFINE WINDOW to create a window and place it in a parent window. The child window becomes integrated with its parent window. For example, a child window defined and activated inside a parent window can't be moved outside the parent window. If the parent window is moved, the child window moves with it.