Internal versions of
1 2 3
a character string giving the name of a C function or
Fortran subroutine, or an object of class
arguments to be passed to the foreign function.
see the corresponding argument of
.graphics versions of
are used when calling code which makes low-level graphics calls.
They take additional steps to ensure that the device driver display
lists are updated correctly.
.External2 is an enhanced version of
passes additional information in more arguments.
.Call.graphics is used in package grid and
.External2 are used in package
These are primitive functions.
An R object.