+/**
+ * __var_Create() with automatic casting.
+ */
+#define var_Create(a,b,c) __var_Create( VLC_OBJECT(a), b, c )
+/**
+ * __var_Destroy() with automatic casting
+ */
+#define var_Destroy(a,b) __var_Destroy( VLC_OBJECT(a), b )
+
+/**
+ * __var_Change() with automatic casting
+ */
+#define var_Change(a,b,c,d,e) __var_Change( VLC_OBJECT(a), b, c, d, e )
+
+/**
+ * __var_Type() with automatic casting
+ */
+#define var_Type(a,b) __var_Type( VLC_OBJECT(a), b )
+/**
+ * __var_Set() with automatic casting
+ */
+#define var_Set(a,b,c) __var_Set( VLC_OBJECT(a), b, c )
+/**
+ * __var_Get() with automatic casting
+ */
+#define var_Get(a,b,c) __var_Get( VLC_OBJECT(a), b, c )
+
+/*****************************************************************************
+ * Variable callbacks
+ *****************************************************************************
+ * int MyCallback( vlc_object_t *p_this,
+ * char const *psz_variable,
+ * vlc_value_t oldvalue,
+ * vlc_value_t newvalue,
+ * void *p_data);
+ *****************************************************************************/
+VLC_EXPORT( int, __var_AddCallback, ( vlc_object_t *, const char *, vlc_callback_t, void * ) );
+VLC_EXPORT( int, __var_DelCallback, ( vlc_object_t *, const char *, vlc_callback_t, void * ) );
+
+/**
+ * __var_AddCallback() with automatic casting
+ */
+#define var_AddCallback(a,b,c,d) __var_AddCallback( VLC_OBJECT(a), b, c, d )
+
+/**
+ * __var_DelCallback() with automatic casting
+ */
+#define var_DelCallback(a,b,c,d) __var_DelCallback( VLC_OBJECT(a), b, c, d )
+
+/*****************************************************************************
+ * helpers functions
+ *****************************************************************************/
+
+/**
+ * Set the value of an integer variable
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ * \param i The new integer value of this variable
+ */
+static inline int __var_SetInteger( vlc_object_t *p_obj, const char *psz_name, int i )
+{
+ vlc_value_t val;
+ val.i_int = i;
+ return __var_Set( p_obj, psz_name, val );
+}
+
+/**
+ * Set the value of an boolean variable
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ * \param b The new boolean value of this variable
+ */
+static inline int __var_SetBool( vlc_object_t *p_obj, const char *psz_name, vlc_bool_t b )
+{
+ vlc_value_t val;
+ val.b_bool = b;
+ return __var_Set( p_obj, psz_name, val );
+}
+
+/**
+ * Set the value of a time variable
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ * \param i The new time value of this variable
+ */
+static inline int __var_SetTime( vlc_object_t *p_obj, const char *psz_name, int64_t i )
+{
+ vlc_value_t val;
+ val.i_time = i;
+ return __var_Set( p_obj, psz_name, val );
+}
+
+/**
+ * Set the value of a float variable
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ * \param f The new float value of this variable
+ */
+static inline int __var_SetFloat( vlc_object_t *p_obj, const char *psz_name, float f )
+{
+ vlc_value_t val;
+ val.f_float = f;
+ return __var_Set( p_obj, psz_name, val );
+}
+
+/**
+ * Set the value of a string variable
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ * \param psz_string The new string value of this variable
+ */
+static inline int __var_SetString( vlc_object_t *p_obj, const char *psz_name, char *psz_string )
+{
+ vlc_value_t val;
+ val.psz_string = psz_string;
+ return __var_Set( p_obj, psz_name, val );
+}
+
+/**
+ * Trigger the callbacks on a void variable
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ */
+static inline int __var_SetVoid( vlc_object_t *p_obj, const char *psz_name )
+{
+ vlc_value_t val;
+ val.b_bool = VLC_TRUE;
+ return __var_Set( p_obj, psz_name, val );
+}
+
+/**
+ * __var_SetInteger() with automatic casting
+ */
+#define var_SetInteger(a,b,c) __var_SetInteger( VLC_OBJECT(a),b,c)
+/**
+ * __var_SetBool() with automatic casting
+ */
+#define var_SetBool(a,b,c) __var_SetBool( VLC_OBJECT(a),b,c)
+
+/**
+ * __var_SetTime() with automatic casting
+ */
+#define var_SetTime(a,b,c) __var_SetTime( VLC_OBJECT(a),b,c)
+/**
+ * __var_SetFloat() with automatic casting
+ */
+#define var_SetFloat(a,b,c) __var_SetFloat( VLC_OBJECT(a),b,c)
+/**
+ * __var_SetString() with automatic casting
+ */
+#define var_SetString(a,b,c) __var_SetString( VLC_OBJECT(a),b,c)
+/**
+ * __var_SetVoid() with automatic casting
+ */
+#define var_SetVoid(a,b) __var_SetVoid( VLC_OBJECT(a),b)
+
+/**
+ * Get a integer value
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ */
+static inline int __var_GetInteger( vlc_object_t *p_obj, const char *psz_name )
+{
+ vlc_value_t val;
+ if( !__var_Get( p_obj, psz_name, &val ) )
+ return val.i_int;
+ else
+ return 0;
+}
+
+/**
+ * Get a boolean value
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ */
+static inline int __var_GetBool( vlc_object_t *p_obj, const char *psz_name )
+{
+ vlc_value_t val;
+ if( !__var_Get( p_obj, psz_name, &val ) )
+ return val.b_bool;
+ else
+ return VLC_FALSE;
+}
+
+/**
+ * Get a time value
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ */
+static inline int64_t __var_GetTime( vlc_object_t *p_obj, const char *psz_name )
+{
+ vlc_value_t val;
+ if( !__var_Get( p_obj, psz_name, &val ) )
+ return val.i_time;
+ else
+ return 0;
+}
+
+/**
+ * Get a float value
+ *
+ * \param p_obj The object that holds the variable
+ * \param psz_name The name of the variable
+ */
+static inline float __var_GetFloat( vlc_object_t *p_obj, const char *psz_name )
+{
+ vlc_value_t val;
+ if( !__var_Get( p_obj, psz_name, &val ) )
+ return val.f_float;
+ else
+ return 0.0;
+}