XtGetClassExtension(3Xt) XT FUNCTIONS XtGetClassExtension(3Xt)NAMEXtGetClassExtension - locate a class extension record
SYNTAX
XtPointer XtGetClassExtension(object_class, byte_offset
type, version, record_size)
WidgetClass object_class;
Cardinal byte_offset;
XrmQuark type;
long version;
Cardinal record_size;
ARGUMENTS
object_class
Specifies the widget class containing the exten-
sion 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. XtGetClass-
Extension 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 modi-
fied or freed by the caller, except possibly to be modi-
fied by the widget class owner.
SEE ALSO
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
X Version 11 Release 6.4 1