CocoaDVDPlayer/Bookmark.m
/* |
File: Bookmark.m |
Abstract: Implementation file for the Bookmark class in CocoaDVDPlayer, |
an Apple Developer sample project. |
Version: 1.3 |
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*/ |
#import <DVDPlayback/DVDPlayback.h> |
#import "Bookmark.h" |
/* |
******************************************************************************** |
** |
** Class: DVDBookmark |
** |
******************************************************************************** |
*/ |
@implementation DVDBookmark |
/* This method creates a bookmark that represents the current playback |
position. We call DVDGetBookmark twice: (1) to find out how much memory to |
allocate for the bookmark, and (2) to create the bookmark in our allocated |
memory. */ |
- (id) init |
{ |
if ((self = [super init]) != nil) { |
data = NULL; |
size = 0; |
/* get bookmark size */ |
OSStatus result = DVDGetBookmark (NULL, &size); |
if (result != noErr) { |
NSLog(@"DVDGetBookmark returned %ld", result); |
} |
else { |
/* allocate memory for bookmark data */ |
data = malloc (size); |
/* get bookmark to current location */ |
result = DVDGetBookmark (data, &size); |
if (result != noErr) { |
NSLog(@"DVDGetBookmark returned %ld", result); |
} |
} |
} |
return self; |
} |
/* This method frees the bookmark memory. */ |
- (void) dealloc { |
free (data); |
[super dealloc]; |
} |
/* This method uses our bookmark to set the new playback position. */ |
- (void) gotoBookmark |
{ |
OSStatus result = DVDGotoBookmark (data, size); |
if (result != noErr) { |
NSLog(@"DVDGotoBookmark returned %ld", result); |
} |
} |
@end |
Copyright © 2012 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2012-08-17