XtGetClassExtension(XXVersion 11 (ReleaseXtGetClassExtension(3Xt)
NAME
XtGetClassExtension - 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
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
Page 1 (printed 7/20/06)
