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|
-- GIMP Toolkit (GTK) Binding for Haskell: binding to gstreamer -*-haskell-*-
--
-- Author : Peter Gavin
-- Created: 1-Apr-2007
--
-- Copyright (c) 2007 Peter Gavin
--
-- This library is free software: you can redistribute it and/or
-- modify it under the terms of the GNU Lesser General Public License
-- as published by the Free Software Foundation, either version 3 of
-- the License, or (at your option) any later version.
--
-- This library is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-- Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public
-- License along with this program. If not, see
-- <http://www.gnu.org/licenses/>.
--
-- GStreamer, the C library which this Haskell library depends on, is
-- available under LGPL Version 2. The documentation included with
-- this library is based on the original GStreamer documentation.
--
-- | Maintainer : gtk2hs-devel@lists.sourceforge.net
-- Stability : alpha
-- Portability : portable (depends on GHC)
module Media.Streaming.GStreamer.Controller.Controller (
Controller,
ControllerClass,
) where
import Control.Monad (liftM)
{#import Media.Streaming.GStreamer.Controller.Types#}
{#import System.Glib.GList#}
{#import System.Glib.GObject#}
import System.Glib.FFI
import System.Glib.UTFString
{# context lib = "gstreamer" prefix = "gst" #}
controllerInit :: IO Bool
controllerInit =
liftM toBool $ {# call controller_init #} nullPtr nullPtr
controllerNew :: GObjectClass gObjectT
=> gObjectT
-> [String]
-> IO Controller
controllerNew object properties =
withMany withUTFString properties $ \cProperties ->
do cPropertiesGList <- toGList cProperties
cController <- {# call controller_new_list #} (toGObject object) cPropertiesGList
{# call g_list_free #} cPropertiesGList
wrapNewGObject mkController $ return cController
controllerRemoveProperties :: ControllerClass controllerT
=> controllerT
-> [String]
-> IO Bool
controllerRemoveProperties controller properties =
withMany withUTFString properties $ \cProperties ->
do cPropertiesGList <- toGList cProperties
success <- {# call controller_remove_properties_list #} (toController controller) cPropertiesGList
{# call g_list_free #} cPropertiesGList
return $ toBool success
|
