DBusMessage.setHeader
void setHeader(gio.types.DBusMessageHeaderField headerField, glib.variant.Variant value = null)Sets a header field on message.
If value is floating, message assumes ownership of value.
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. |