QuickTime Kit Programming Guide - filibeto.org

C H A P T E R 5
Extending the QTKitPlayer To Stream Audio and Video
You’re done with the QTKitPlayerAppDelegate.h declaration file.
Adding Code To Your QTKitPlayerDelegate.m
In this next sequence of steps, you’ll be adding a larger chunk of code to your
QTKitPlayerAppDelegate.m implementation file.
To begin, in the QTKitPlayerAppDelegate.m file, you want to follow these steps:
1. Insert the following import code at the beginning of your file:
#import "QTKit/QTKit.h"
#import "QTKitPlayerAppDelegate.h"
#import "MovieDocument.h."
2. Following your import statement, you want add these enumerations. Insert these lines:
{
};
kQTKitPlayerOpenAsURL = 0,
kQTKitPlayerOpenAsData
3. You also want to add QTKitPlayAppDelegate after the @implementation directive. Insert this
line:
@implementation QTKitPlayerAppDelegate
4. Now you want to add the following lines for NSMenu validation protocols. Insert this block of
code:
- (BOOL)validateMenuItem:(NSMenuItem *)menuItem
{
BOOLvalid = NO;
SEL action;
// init
action = [menuItem action];
// validate
if (action == @selector(doOpenURL:))
valid = YES;
else if (action == @selector(doOpenURLData:))
valid = YES;
else
valid = [[NSDocumentController sharedDocumentController]
validateMenuItem:menuItem];
}
return valid;
5. Next, you need to add these OpenURLPanel delegates. Insert these lines:
- (void)openURLPanelDidEnd:(OpenURLPanel *)openURLPanel returnCode:(int)returnCode
contextInfo:(void *)contextInfo
{
Adding Code To Stream Audio and Video 95
2005-11-09 | © 2004, 2005 Apple Computer, Inc. All Rights Reserved.