NAME

XtIsConstraint − test whether a widget is a subclass of the Constraint widget class. 

SYNOPSIS

Boolean XtIsConstraint(object)
    Widget object;

Inputs

objectSpecifies the widget whose class is to be tested; may be of class Object or any subclass thereof. 

Returns

True if object is of class Constraint or a subclass thereof; False otherwise. 

DESCRIPTION

XtIsConstraint() tests whether object is a subclass of the Constraint widget class.  It may be defined as a macro or a function, and is equivalent to, but may be faster than, calling XtIsSubclass() for this class. 

SEE ALSO

XtIsSubclassUNIX SYSTEM V/68.