XmDropSiteQueryStackingOrder - A Drag and Drop function that returns the parent, a list of children, and the number of children for a specified widget
Status XmDropSiteQueryStackingOrder (widget, parent_return, child_returns, num_child_returns)
XmDropSiteQueryStackingOrder obtains the parent, a list of children registered as drop sites, and the number of children registered as drop sites for a given widget. The children are listed in current stacking order, from bottom-most (first child) to the top-most (last child). This function allocates memory for the returned data that must be freed by calling XtFree. Specifies the widget ID. For this widget, you obtain the list of its children, its parent, and the number of children. Returns the widget ID of the drop site parent of the specified widget. Returns a pointer to the list of drop site children associated with the specified widget. Returns the number of drop site children for the specified widget.
For a complete definition of DropSite and its associated resources,
Returns zero if the routine fails; returns a nonzero value if it succeeds.