Facilities in the R language for programming
graphical interfaces using Gtk, the Gimp Tool Kit.

R Bindings for Gtk 2.8.0 and Above

package-ubuntu-20.04-r-4.0.5#cran#RGtk2-2.20.36

Returns the width of the default screen in millimeters.
Note that on many X servers this value will not be correct.

[integer] the width of the default screen in millimeters,
though it is not always correct.

Derived by RGtkGen from GTK+ documentation

package-ubuntu-20.04-r-4.0.5#cran#RGtk2-2.20.36#docs#gdkScreenWidthMm

gdkScreenWidthMm