loadKeyFile
open fun loadKeyFile(keyFile: <Error class: unknown class>, groupName: String? = null): <Error class: unknown class><Boolean>
Reads the print settings from the group @group_name in @key_file.
If the file could not be loaded then error is set to either a GFileError or GKeyFileError.
Return
true on success
Parameters
keyFile
the GKeyFile to retrieve the settings from
groupName
the name of the group to use, or null to use the default “Print Settings”