NAME

       XtGetClassExtension - locate a class extension record

SYNTAX

       XtPointer XtGetClassExtension(WidgetClass object_class, Cardinal byte_offset, XrmQuark
              type, long version, Cardinal record_size);

ARGUMENTS

       object_class
                 Specifies the widget class containing the extension list to be searched.

       byte_offset
                 Specifies the offset in bytes form the base of the widget class of the extension
                 field to be searched.

       type      Specifies the name of the class extension to be located.

       version   Specifies the minimum acceptable version of the class extension required for a
                 match.

       record_size
                 Specifies the minimum acceptable length of the class extension record required
                 for match, or 0.

DESCRIPTION

       The list of extension records at the specified offset in the specified widget_class will
       be searched for a match on the specified type, a version greater than or equal to the
       specified version, and a record size greater than or equal the specified record_size if it
       is nonzero.  XtGetClassExtension returns a pointer to a matching extension record or NULL
       if no match is found. The returned extension record is owned by the widget class and must
       not be modified or freed by the caller, except possibly to be modified by the widget class
       owner.

SEE ALSO

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