XtVaSetSubvalues

XtSetValues(3Xt)		 XT FUNCTIONS		     XtSetValues(3Xt)



NAME
       XtSetValues, XtVaSetValues, XtSetSubvalues, XtVaSetSubvalues, XtGet-
       Values, XtVaGetValues, XtGetSubvalues, XtVaGetSubvalues - obtain and
       set widget resources

SYNTAX
       void XtSetValues(Widget w, ArgList args, Cardinal num_args);

       void XtVaSetValues(Widget w, ...);

       void XtSetSubvalues(XtPointer base, XtResourceList resources, Cardinal
	      num_resources, ArgList args, Cardinal num_args);

       void XtVaSetSubvalues(XtPointer base, XtResourceList resources, Cardi-
	      nal num_resources, ...);

       void XtGetValues(Widget w, ArgList args, Cardinal num_args);

       void XtVaGetValues(Widget w, ...);

       void XtGetSubvalues(XtPointer base, XtResourceList resources, Cardinal
	      num_resources, ArgList args, Cardinal num_args);

       void XtVaGetSubvalues(XtPointer base, XtResourceList resources, Cardi-
	      nal num_resources, ...);

ARGUMENTS
       and either the address into which the resource value is to be stored
       or their new values

       args	 Specifies the argument list of name/address pairs that con-
		 tain the resource name.

       base	 Specifies the base address of the subpart data structure
		 where the resources should be retrieved or written.

       num_args	 Specifies the number of arguments in the argument list.

       resources Specifies the nonwidget resource list or values.

       num_resources
		 Specifies the number of resources in the resource list.

       w	 Specifies the widget.

       ...	 Specifes the variable argument list of name/address pairs
		 that contain the resource name.

DESCRIPTION
       The XtSetValues function starts with the resources specified for the
       Core widget fields and proceeds down the subclass chain to the widget.
       At each stage, it writes the new value (if specified by one of the
       arguments) or the existing value (if no new value is specified) to a
       new widget data record.	XtSetValues then calls the set_values proce-
       dures for the widget in superclass-to-subclass order.  If the widget
       has any non-NULL set_values_hook fields, these are called immediately
       after the corresponding set_values procedure.  This procedure permits
       subclasses to set nonwidget data for XtSetValues.

       If the widget’s parent is a subclass of constraintWidgetClass, XtSet-
       Values also updates the widget’s constraints.  It starts with the con-
       straint resources specified for constraintWidgetClass and proceeds
       down the subclass chain to the parent’s class.  At each stage, it
       writes the new value or the existing value to a new constraint record.
       It then calls the constraint set_values procedures from constraint-
       WidgetClass down to the parent’s class.	The constraint set_values
       procedures are called with widget arguments, as for all set_values
       procedures, not just the constraint record arguments, so that they can
       make adjustments to the desired values based on full information about
       the widget.

       XtSetValues determines if a geometry request is needed by comparing
       the current widget to the new widget.  If any geometry changes are
       required, it makes the request, and the geometry manager returns XtGe-
       ometryYes, XtGeometryAlmost, or XtGeometryNo.  If XtGeometryYes,
       XtSetValues calls the widget’s resize procedure.	 If XtGeometryNo,
       XtSetValues resets the geometry fields to their original values.	 If
       XtGeometryAlmost, XtSetValues calls the set_values_almost procedure,
       which determines what should be done and writes new values for the
       geometry fields into the new widget.  XtSetValues then repeats this
       process, deciding once more whether the geometry manager should be
       called.

       Finally, if any of the set_values procedures returned True, XtSet-
       Values causes the widget’s expose procedure to be invoked by calling
       the Xlib XClearArea function on the widget’s window.

       The XtSetSubvalues function stores resources into the structure iden-
       tified by base.

       The XtGetValues function starts with the resources specified for the
       core widget fields and proceeds down the subclass chain to the widget.
       The value field of a passed argument list should contain the address
       into which to store the corresponding resource value.  It is the
       caller’s responsibility to allocate and deallocate this storage
       according to the size of the resource representation type used within
       the widget.

       If the widget’s parent is a subclass of constraintWidgetClass, XtGet-
       Values then fetches the values for any constraint resources requested.
       It starts with the constraint resources specified for constraint-
       WidgetClass and proceeds down to the subclass chain to the parent’s
       constraint resources.  If the argument list contains a resource name
       that is not found in any of the resource lists searched, the value at
       the corresponding address is not modified.  Finally, if the get_val-
       ues_hook procedures are non-NULL, they are called in superclass-to-
       subclass order after all the resource values have been fetched by
       XtGetValues.  This permits a subclass to provide nonwidget resource
       data to XtGetValues.

       The XtGetSubvalues function obtains resource values from the structure
       identified by base.

SEE ALSO
       X Toolkit Intrinsics - C Language Interface
       Xlib - C Language X Interface



							     XtSetValues(3Xt)