newFromKeyFile
fun newFromKeyFile(keyFile: <Error class: unknown class>, groupName: String? = null): <Error class: unknown class><PaperSize>
Reads a paper size from the group @group_name in the key file
Return
a new GtkPaperSize object with the restored paper size
Parameters
keyFile
the GKeyFile to retrieve the papersize from
groupName
the name of the group in the key file to read, or null to read the first group