---

NSCoder QTKit Additions Reference

Overview

The QuickTime Kit supports categories on the NSCoder class that allow you to encode and decode structures of type QTTime and QTTimeRange, in addition to structures of type SMPTETime in Mac OS X v10.5.

Tasks

Encoding Time and Time Ranges

• – encodeQTTime:forKey:
• – encodeQTTimeRange:forKey:
• – encodeSMPTETime:forKey:

Decoding Time and Time Ranges

• – decodeQTTimeForKey:
• – decodeQTTimeRangeForKey:
• – decodeSMPTETimeForKey:

Instance Methods

decodeQTTimeForKey:

Decodes a QTTime structure.

- (QTTime)decodeQTTimeForKey:(NSString *)key

Discussion

This method matches an encode QTTime message used during encoding.

Availability

• Available in Mac OS X v10.3 and later.

Declared In

QTTime.h

decodeQTTimeRangeForKey:

Decodes a QTTimeRange structure.

- (QTTimeRange)decodeQTTimeRangeForKey:(NSString *)key

Discussion

This method matches an encode QTTimeRange message used during encoding.

Availability

• Available in Mac OS X v10.3 and later.

Declared In

QTTimeRange.h

decodeSMPTETimeForKey:

Decodes an SMPTETime structure encoded by the receiver for the given key.

- (SMPTETime)decodeSMPTETimeForKey:(NSString *)key

Availability

• Mac OS X v10.5 and later.

Declared In

QTTime.h

encodeQTTime:forKey:

Encodes a QTTime structure.

- (void)encodeQTTime:(QTTime)timeforKey :(NSString *)key

Discussion

This method must be matched by a decode QTTime message.

Availability

• Available in Mac OS X v10.3 and later.

Declared In

QTTime.h

encodeQTTimeRange:forKey:

Encodes a QTTimeRange structure range.

- (void)encodeQTTimeRange:(QTTimeRange)rangeforKey :(NSString *)key

Discussion

This method must be matched by a decode QTTimeRange message.

Availability

• Available in Mac OS X v10.3 and later.

Declared In

QTTimeRange.h

encodeSMPTETime:forKey:

Encodes an SMPTETime for the given key.

- (void)encodeSMPTETime:(SMPTETime)time forKey:(NSString *)key

Availability

• Mac OS X v10.5 and later.

Declared In

QTTime.h

---