|  |  |  | GStreamer 0.10 Core Reference Manual |  | 
|---|
| GstImplementsInterfaceGstImplementsInterface — Core interface implemented by GstElement instances that allows runtime querying of interface availabillity | 
#include <gst/gst.h>
            GstImplementsInterface;
gboolean    gst_element_implements_interface
                                            (GstElement *element,
                                             GType iface_type);
gpointer    gst_implements_interface_cast   (gpointer from,
                                             GType type);
gboolean    gst_implements_interface_check  (gpointer from,
                                             GType type);
Provides interface functionality on per instance basis and not per class basis, which is the case for gobject.
typedef struct _GstImplementsInterface GstImplementsInterface;
Opaque GstImplementsInterface structure.
gboolean gst_element_implements_interface (GstElement *element, GType iface_type);
Test whether the given element implements a certain interface of type iface_type, and test whether it is supported for this specific instance.
| element: | GstElement to check for the implementation of the interface | 
| iface_type: | (final) type of the interface which we want to be implemented | 
| Returns : | whether or not the element implements the interface. | 
gpointer gst_implements_interface_cast (gpointer from, GType type);
cast a given object to an interface type, and check whether this interface is supported for this specific instance.
| from: | the object (any sort) from which to cast to the interface | 
| type: | the interface type to cast to | 
| Returns : | a gpointer to the interface type | 
gboolean gst_implements_interface_check (gpointer from, GType type);
check a given object for an interface implementation, and check whether this interface is supported for this specific instance.
| from: | the object (any sort) from which to check from for the interface | 
| type: | the interface type to check for | 
| Returns : | whether or not the object implements the given interface | 
| << GstGhostPad | GstIndex >> |