XtGetClassExtension(3Xt) XT FUNCTIONS XtGetClassExtension(3Xt)
XtGetClassExtension - locate a class extension record
XtPointer XtGetClassExtension(WidgetClass object_class, Car-
dinal byte_offset, XrmQuark type, long version, Cardi-
nal record_size);
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.
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 modified or
freed by the caller, except possibly to be modified by the
widget class owner.
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
XFree86 Version 4.5.0 1
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