GI.Notify.Callbacks

Signals

ActionCallback

type ActionCallback = Notification -> Text -> IO ()

An action callback function.

type ActionCallback_WithClosures = Notification -> Text -> Ptr () -> IO ()

An action callback function.

type C_ActionCallback = Ptr Notification -> CString -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

drop_closures_ActionCallback :: ActionCallback -> ActionCallback_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_ActionCallback :: (HasCallStack, MonadIO m, IsNotification a) => FunPtr C_ActionCallback -> a -> Text -> Ptr () -> m ()

Given a pointer to a foreign C function, wrap it into a function callable from Haskell.

genClosure_ActionCallback :: MonadIO m => ActionCallback -> m (GClosure C_ActionCallback)

Wrap the callback into a GClosure.

mk_ActionCallback :: C_ActionCallback -> IO (FunPtr C_ActionCallback)

Generate a function pointer callable from C code, from a C_ActionCallback.

noActionCallback :: Maybe ActionCallback

A convenience synonym for Nothing :: Maybe ActionCallback.

noActionCallback_WithClosures :: Maybe ActionCallback_WithClosures

A convenience synonym for Nothing :: Maybe ActionCallback_WithClosures.

wrap_ActionCallback :: Maybe (Ptr (FunPtr C_ActionCallback)) -> ActionCallback_WithClosures -> C_ActionCallback

Wrap a ActionCallback into a C_ActionCallback.