grSoftVersion: Report Versions of Graphics Software
Description
Report versions of third-party graphics software.
Usage
grSoftVersion()
Arguments
Value
A named character vector containing at least the element
cairo
the version of cairographics in use, or "" if
cairographics is not available.
It may also contain the versions of third-party software used
by the
windows
standard
unix
X11-based
(not cairo-based) bitmap devices:
libpng
the version of libpng in use, or "" if
not available.
jpeg
the version of the JPEG headers used for compilation,
or "" if JPEG support was not compiled in.
libtiff
the version of libtiff in use, or "" if
not available.
Unless otherwise stated the reported version is that of the (possibly
dynamically-linked) library in use at runtime.Note that libjpeg-turbo used on some Linux distributions
reports its version as "6.2", the IJG version from which it forked.