HDBus: Haskell DBus bindings Contents Index

DBus.Message

Contents Messages Arguments Dictionaries Variants

Synopsis

type Message = ForeignPtr MessageTag newSignal :: PathName -> InterfaceName -> String -> IO Message newMethodCall :: ServiceName -> PathName -> InterfaceName -> String -> IO Message class Show a => Arg a where toIter :: a -> Iter -> IO () fromIter :: Iter -> IO a signature :: a -> String toIterInternal :: a -> Iter -> IO () fromIterInternal :: Iter -> IO a args :: Arg a => Message -> IO a addArgs :: Arg a => Message -> a -> IO () type Dict a b = [DictEntry a b] dict :: (Arg a, Arg b) => [(a, b)] -> Dict a b data Variant variant :: Arg a => a -> Variant

Messages

type Message = ForeignPtr MessageTag

newSignal

:: PathName Path. -> InterfaceName Interface. -> String Method name. -> IO Message

newMethodCall

:: ServiceName Bus name. -> PathName Path. -> InterfaceName Interface. -> String Method name. -> IO Message

Arguments

class Show a => Arg a where

Methods toIter :: a -> Iter -> IO () fromIter :: Iter -> IO a signature :: a -> String toIterInternal :: a -> Iter -> IO () fromIterInternal :: Iter -> IO a Instances Arg Int32 Arg String Arg Variant Arg Word32 Arg () (Arg a, Arg b) => Arg (a, b) (Arg a, Arg b, Arg c, Arg d, Arg e, Arg f, Arg g, Arg h) => Arg (a, b, c, d, e, f, g, h) Arg a => Arg [a] (Arg a, Arg b) => Arg (DictEntry a b)

args :: Arg a => Message -> IO a

Retrieve the arguments from a message.

addArgs :: Arg a => Message -> a -> IO ()

Add arguments to a message.

Dictionaries

DBus functions that expect a dictionary must be passed a Dict, which is trivially constructable from an appropriate list.

type Dict a b = [DictEntry a b]

dict :: (Arg a, Arg b) => [(a, b)] -> Dict a b

Variants

Some DBus functions allow variants, which are similar to Dynamic dynamics but restricted to DBus data types.

data Variant

Instances Arg Variant Show Variant

variant :: Arg a => a -> Variant

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