GI.GstPbutils.Callbacks

Signals

AudioVisualizerShaderFunc

type AudioVisualizerShaderFunc = AudioVisualizer -> VideoFrame -> VideoFrame -> IO ()

No description available in the introspection data.

type C_AudioVisualizerShaderFunc = Ptr AudioVisualizer -> Ptr VideoFrame -> Ptr VideoFrame -> IO ()

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

dynamic_AudioVisualizerShaderFunc :: (HasCallStack, MonadIO m, IsAudioVisualizer a) => FunPtr C_AudioVisualizerShaderFunc -> a -> VideoFrame -> VideoFrame -> m ()

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

genClosure_AudioVisualizerShaderFunc :: MonadIO m => AudioVisualizerShaderFunc -> m (GClosure C_AudioVisualizerShaderFunc)

Wrap the callback into a GClosure.

mk_AudioVisualizerShaderFunc :: C_AudioVisualizerShaderFunc -> IO (FunPtr C_AudioVisualizerShaderFunc)

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

noAudioVisualizerShaderFunc :: Maybe AudioVisualizerShaderFunc

A convenience synonym for Nothing :: Maybe AudioVisualizerShaderFunc.

wrap_AudioVisualizerShaderFunc :: Maybe (Ptr (FunPtr C_AudioVisualizerShaderFunc)) -> AudioVisualizerShaderFunc -> C_AudioVisualizerShaderFunc

Wrap a AudioVisualizerShaderFunc into a C_AudioVisualizerShaderFunc.

InstallPluginsResultFunc

type C_InstallPluginsResultFunc = CUInt -> Ptr () -> IO ()

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

type InstallPluginsResultFunc

Arguments

 = InstallPluginsReturn

result: whether the installation of the requested plugins succeeded or not

-> IO ()

The prototype of the callback function that will be called once the external plugin installer program has returned. You only need to provide a callback function if you are using the asynchronous interface.

type InstallPluginsResultFunc_WithClosures

Arguments

 = InstallPluginsReturn

result: whether the installation of the requested plugins succeeded or not

-> Ptr ()

userData: the user data passed to installPluginsAsync

-> IO ()

The prototype of the callback function that will be called once the external plugin installer program has returned. You only need to provide a callback function if you are using the asynchronous interface.

drop_closures_InstallPluginsResultFunc :: InstallPluginsResultFunc -> InstallPluginsResultFunc_WithClosures

A simple wrapper that ignores the closure arguments.

dynamic_InstallPluginsResultFunc

Arguments

:: (HasCallStack, MonadIO m)

=> FunPtr C_InstallPluginsResultFunc

-> InstallPluginsReturn

result: whether the installation of the requested plugins succeeded or not

-> Ptr ()

userData: the user data passed to installPluginsAsync

-> m ()

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

genClosure_InstallPluginsResultFunc :: MonadIO m => InstallPluginsResultFunc -> m (GClosure C_InstallPluginsResultFunc)

Wrap the callback into a GClosure.

mk_InstallPluginsResultFunc :: C_InstallPluginsResultFunc -> IO (FunPtr C_InstallPluginsResultFunc)

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

noInstallPluginsResultFunc :: Maybe InstallPluginsResultFunc

A convenience synonym for Nothing :: Maybe InstallPluginsResultFunc.

noInstallPluginsResultFunc_WithClosures :: Maybe InstallPluginsResultFunc_WithClosures

A convenience synonym for Nothing :: Maybe InstallPluginsResultFunc_WithClosures.

wrap_InstallPluginsResultFunc :: Maybe (Ptr (FunPtr C_InstallPluginsResultFunc)) -> InstallPluginsResultFunc_WithClosures -> C_InstallPluginsResultFunc

Wrap a InstallPluginsResultFunc into a C_InstallPluginsResultFunc.