setHeader
open fun setHeader(headerField: DBusMessageHeaderField, value: <Error class: unknown class>? = null)
Sets a header field on @message.
If @value is floating, @message assumes ownership of @value.
Since
2.26
Parameters
headerField
A 8-bit unsigned integer (typically a value from the #GDBusMessageHeaderField enumeration)
value
A #GVariant to set the header field or null to clear the header field.