Class: CGDataProviderSequentialCallbacks
Overview
Defines a structure containing pointers to client-defined callback functions that manage the sending of data for a sequential-access data provider.
Instance Attribute Summary (collapse)
-
- getBytes
A pointer to a function that copies data from the provider.
-
- releaseInfo
A pointer to a function that handles clean-up for the data provider, or NULL.
-
- rewind
A pointer to a function Quartz calls to return the provider to the beginning of the data stream.
-
- skipForward
A pointer to a function that Quartz calls to advance the stream of data supplied by the provider.
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- version
The version of this structure.
Method Summary
Methods inherited from Boxed
Methods inherited from NSObject
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Constructor Details
This class inherits a constructor from NSObject
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class NSObject
Instance Attribute Details
- (Object) getBytes
A pointer to a function that copies data from the provider. For more information, see CGDataProviderGetBytesCallback.
- (Object) releaseInfo
A pointer to a function that handles clean-up for the data provider, or NULL. For more information, see CGDataProviderReleaseInfoCallback.
- (Object) rewind
A pointer to a function Quartz calls to return the provider to the beginning of the data stream. For more information, see CGDataProviderRewindCallback.
- (Object) skipForward
A pointer to a function that Quartz calls to advance the stream of data supplied by the provider.
- (unsigned int) version
The version of this structure. It should be set to 0.