.Call.graphics(.NAME, …, PACKAGE)
.External.graphics(.NAME, …, PACKAGE)
.External2(.NAME, …, PACKAGE)
a character string giving the name of a C function or
Fortran subroutine, or an object of class
"NativeSymbolInfo"
, "RegisteredNativeSymbol"
or "NativeSymbol"
referring to such a name.
arguments to be passed to the foreign function.
see the corresponding argument of .Call
.
An R object.
The .graphics
versions of .Call
and .External
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 .External
which
passes additional information in more arguments.
.Call.graphics
is used in package grid and
.External.graphics
and .External2
are used in package
graphics
.
These are primitive functions.