Is the Current Graphics Device Interactive?
Test if the current graphics device (or that which would be opened) is interactive.
dev.interactive(orNone = FALSE)
deviceIsInteractive(name = NULL)
windows (Windows) and
(OS X, on-screen types only) are regarded as interactive, together
JavaGD (from the package of the same name) and
CairoX11 (from package
dev.interactive()returns a logical,
TRUEif and only if an interactive (screen) device is in use.
deviceIsInteractivereturns the updated list of known interactive devices, invisibly unless
name = NULL.
Devices for the available devices on your platform.