ChildProxyIF

This interface abstracts handling of property sets for elements with children. Imagine elements such as mixers or polyphonic generators. They all have multiple gstreamer.Pad or some kind of voice objects. Another use case are container elements like gstreamer.Bin The element implementing the interface acts as a parent for those child objects.

By implementing this interface the child properties can be accessed from the parent element by using gst_child_proxy_get() and gst_child_proxy_set().

Property names are written as "child-name::property-name". The whole naming scheme is recursive. Thus "child1::child2::property" is valid too, if "child1" and "child2" implement the GstChildProxy interface.

Members

Functions

addOnChildAdded
gulong addOnChildAdded(void delegate(ObjectG, string, ChildProxyIF) dlg, ConnectFlags connectFlags = cast(ConnectFlags)0)

Will be emitted after the object was added to the child_proxy.

addOnChildRemoved
gulong addOnChildRemoved(void delegate(ObjectG, string, ChildProxyIF) dlg, ConnectFlags connectFlags = cast(ConnectFlags)0)

Will be emitted after the object was removed from the child_proxy.

childAdded
void childAdded(ObjectG child, string name)

Emits the "child-added" signal.

childGetProperty
void childGetProperty(string name, out Value value)

Gets a single property using the GstChildProxy mechanism. You are responsible for freeing it by calling Value.unset

childGetValist
void childGetValist(string firstPropertyName, void* varArgs)

Gets properties of the parent object and its children.

childRemoved
void childRemoved(ObjectG child, string name)

Emits the "child-removed" signal.

childSetProperty
void childSetProperty(string name, Value value)

Sets a single property using the GstChildProxy mechanism.

childSetValist
void childSetValist(string firstPropertyName, void* varArgs)

Sets properties of the parent object and its children.

getChildByIndex
ObjectG getChildByIndex(uint index)

Fetches a child by its number.

getChildByName
ObjectG getChildByName(string name)

Looks up a child element by the given name.

getChildProxyStruct
GstChildProxy* getChildProxyStruct(bool transferOwnership = false)

Get the main Gtk struct

getChildrenCount
uint getChildrenCount()

Gets the number of child objects this parent contains.

getStruct
void* getStruct()

the main Gtk struct as a void*

lookup
bool lookup(string name, out ObjectG target, out ParamSpec pspec)

Looks up which object and gobject.ParamSpec would be effected by the given name.

Static functions

getType
GType getType()

Meta