NAME

       XtGetClassExtension - locate a class extension record

SYNTAX

       #include <X11/Intrinsic.h>

       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

X Version 11                                       libXt 1.2.1                            XtGetClassExtension(3)