XtGetClassExtension(3) XT FUNCTIONS XtGetClassExtension(3)

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

X Version 11 libXt 1.1.5 XtGetClassExtension(3)