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Top Forums UNIX for Dummies Questions & Answers assigning (numeric) command output to var tcsh Post 302229974 by joeyg on Thursday 28th of August 2008 09:45:09 AM
Old 08-28-2008
Tools Child returning data to parent

What you are asking is for a child (called) process to return info to parent (master) program. The construct of unix does not allow for this as whatever is learned by the child does not have a way to naturally pass to parent; the reverse is ok, and is often accomplished with an EXPORT command.

Searching this forum will probably provide several creative solutions. Some are:
(a) return the value by way of the exit error parameter of the child back to the parent
(b) have the child write the data to a temporary file that the parent can then read
 

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XtUnmanageChildren(3X)						   XT FUNCTIONS 					    XtUnmanageChildren(3X)

NAME
XtUnmanageChildren - unmanage children SYNTAX
typedef Widget *WidgetList; void XtUnmanageChildren(children, num_children) WidgetList children; Cardinal num_children; ARGUMENTS
children Specifies a list of child widgets. num_children Specifies the number of children. DESCRIPTION
The XtUnmanageChildren function performs the following: o Issues an error if the children do not all have the same parent or if the parent is not a subclass of compositeWidgetClass. o Returns immediately if the common parent is being destroyed; otherwise, for each unique child on the list, XtUnmanageChildren performs the following: - Ignores the child if it already is unmanaged or is being destroyed and marks it if not. - If the child is realized, it makes it nonvisible by unmapping it. o Calls the change_managed routine of the widgets' parent after all children have been marked if the parent is realized. XtUnmanageChildren does not destroy the children widgets. Removing widgets from a parent's managed set is often a temporary banishment, and, some time later, you may manage the children again. SEE ALSO
XtManageChildren(3X), XtManageChild(3X), XtUnmanageChild(3X), XtChangeManagedSet(3X), XtIsManged(3X) X Version 11 Release 6 XtUnmanageChildren(3X)
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