gtkPaperSizeNewFromKeyFile: gtkPaperSizeNewFromKeyFile
In RGtk2: R Bindings for Gtk 2.8.0 and Above

Reads a paper size from the group group.name in the key file key.file.

1	gtkPaperSizeNewFromKeyFile(key.file, group.name, .errwarn = TRUE)

`key.file`	the `GKeyFile` to retrieve the papersize from
`group.name`	the name ofthe group in the key file to read, or `NULL` to read the first group
`.errwarn`	Whether to issue a warning on error or fail silently

Since 2.12

A list containing the following elements:

`retval`	[`GtkPaperSize`] a new `GtkPaperSize` object with the restored paper size, or `NULL` if an error occurred.
`error`	return location for an error, or `NULL`. [ allow-none ]