|
| System.Glib.GObject | | Portability | portable (depends on GHC) | | Stability | provisional | | Maintainer | gtk2hs-users@lists.sourceforge.net |
|
|
|
|
|
| Description |
| The base object type for all glib objects
|
|
| Synopsis |
|
|
|
|
| Types
|
|
| module System.Glib.Types |
|
| Low level binding functions
|
|
| All these functions are internal and are only interesting to people
writing bindings to GObject-style C libraries.
|
|
| objectNew :: GType -> [(String, GValue)] -> IO (Ptr GObject) |
| Construct a new object (should rairly be used directly)
|
|
| objectRef :: GObjectClass obj => Ptr obj -> IO () |
| Increase the reference counter of an object
|
|
| objectUnref :: Ptr a -> FinalizerPtr a |
|
| makeNewGObject :: GObjectClass obj => (ForeignPtr obj -> obj) -> IO (Ptr obj) -> IO obj |
This is a convenience function to generate an object that does not
derive from Object. It adds objectUnref as finalizer.
- The constr argument is the contructor of the specific object.
|
|
| Callback support
|
|
| type DestroyNotify = FunPtr (Ptr () -> IO ()) |
|
| mkFunPtrDestroyNotify :: FunPtr a -> IO DestroyNotify |
| Many methods in classes derived from GObject take a callback function and
a destructor function which is called to free that callback function when
it is no longer required. This function constructs a DestroyNotify function
pointer which when called from C land will free the given Haskell function
pointer (and itself).
|
|
| Weak references
|
|
| type GWeakNotify = FunPtr (Ptr () -> Ptr GObject -> IO ()) |
|
| objectWeakref :: GObjectClass o => o -> IO () -> IO GWeakNotify |
| Attach a callback that will be called after the
destroy hooks have been called
|
|
| objectWeakunref :: GObjectClass o => o -> GWeakNotify -> IO () |
| Detach a weak destroy callback function
|
|
| Produced by Haddock version 0.7 |
