Function gio_sys::g_dbus_connection_call_sync

pub unsafe extern "C" fn g_dbus_connection_call_sync(
    connection: *mut GDBusConnection, 
    bus_name: *const c_char, 
    object_path: *const c_char, 
    interface_name: *const c_char, 
    method_name: *const c_char, 
    parameters: *mut GVariant, 
    reply_type: *const GVariantType, 
    flags: GDBusCallFlags, 
    timeout_msec: c_int, 
    cancellable: *mut GCancellable, 
    error: *mut *mut GError
) -> *mut GVariant