R: Lists of Open/Active Graphics Devices

.Device {base} | R Documentation

## Lists of Open/Active Graphics Devices

### Description

A pairlist of the names of open graphics devices is stored in `.Devices`. The name of the active device (see `dev.cur`) is stored in `.Device`. Both are symbols and so appear in the base namespace.

### Value

`.Device` is a length-one character vector.

`.Devices` is a pairlist of length-one character vectors. The first entry is always `"null device"`, and there are as many entries as the maximal number of graphics devices which have been simultaneously active. If a device has been removed, its entry will be `""` until the device number is reused.

Devices may add attributes to the character vector: for example devices which write to a file may record its path in attribute `"filepath"`.

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