The QCRenderer protocol defines the methods used to pass data to the input ports or retrieve data from the output ports of the root patch of a Quartz Composer composition. This protocol is adopted by the QCRenderer, QCView, and QCComposition classes.
SDK
Framework
protocol QCCompositionRenderer
func setSets the value for an input port of a composition.
Required.
func value(forReturns the value for an input port of a composition.
Required.
func value(forReturns the value for an output port of a composition.
Required.
func value(forReturns the current value on an output port (identified by its key) of the root patch of the composition.
Required.
func inputReturns an array that contains the keys that identify the input ports of the root patch of the composition.
Required.
func outputReturns an array that contains the keys that identify the output ports of the root patch of the composition.
Required.
func attributes() -> [AnyReturns the attributes of the composition associated with the renderer.
Required.
func userReturns a mutable dictionary for storing arbitrary information.
Required.
func propertyReturns a property list object that represents the current values for all the input keys of the composition.
Required.
func setSets the values for the input keys of the composition from a previously saved property list.
Required.