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Technical Notes provide late breaking information about new Apple technologies and supplementary documentation discussing some of the more complex issues related to programming for the Mac OS.

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Exporting Movies for iPod, Apple TV and iPhone (HTML)
TN2188: Discusses the use of the iPod, Apple TV and iPhone QuickTime export components.
Graphics & Imaging, QuickTime 2009-04-30
Supplying codec-specific options within the Standard Compression Dialog (HTML) (日本語 HTML)
TN2081: Discusses the ImageCodec 'DITL' APIs introduced with QuickTime 6.
QuickTime 2009-04-29
Optimizing Audio Unit User Experience in Logic Studio (HTML)
TN2207: How to provide the best user experience with your audio unit in Logic Studio
Apple Applications, Audio 2009-04-23
Audio Export - Encoding AAC Audio For MPEG-4 Export (HTML)
TN2237: The QT MPEG4 Exporter does not show all options for generating AAC, this TN discusses workarounds.
Audio, QuickTime 2009-01-27
Kernel Core Dumps (HTML)
TN2118: Explains how to gather and use remote kernel core dumps.
Darwin, Networking, Tools 2008-11-12
OpenGL Performance Optimization : The Basics (HTML)
TN2093: This document describes some of the concepts and techniques for optimizing performance in OpenGL applications.
Graphics & Imaging 2008-11-05
Real world profiling with the OpenGL Profiler (HTML)
TN2178: This document describes how to use OpenGL Profiler, a very powerful tool for your OpenGL development.
Games, Graphics & Imaging, Performance 2008-09-16
Running At Login (HTML)
TN2228: Describes how to write code that's coordinated with the login process.
Darwin, Security 2008-09-16
Observing Process Lifetimes Without Polling (HTML)
TN2050: Shows a variety of methods to observe process lifetimes without polling.
Carbon, Cocoa, Core Foundation, Darwin 2008-09-10
Audio Unit Validation Using the auval Tool (HTML)
TN2204: Test the conformance of audio units to Audio Unit Services.
Audio 2008-09-08
Debugging An Authorization Plug-In With Xcode (HTML)
TN2108: A tutorial on how to use Xcode to debug an authorization plug-in.
Security, Tools 2008-09-08
Building Universal I/O Kit Drivers (HTML)
TN2163: How to build a universal I/O Kit kernel driver while avoiding common pitfalls.
Darwin, Hardware & Drivers, Mac OS X Server 2008-08-18
Understanding and Debugging Kernel Panics (HTML) (日本語 HTML)
TN2063: Addresses kernel panics: what they are and how to debug the code that caused the panic.
Darwin, Hardware & Drivers 2008-08-14
Final Cut Pro - The 'r4fl' Pixel Format (HTML)
TN2201: Describes the 'r4fl' pixel format used by Final Cut Pro to support greater than 8-bit rendering.
Apple Applications, Graphics & Imaging, QuickTime 2008-08-06
Mac OS X Code Signing In Depth (HTML)
TN2206: Intermediate to expert level overview of code signing that details specific options and gotchas
Carbon, Cocoa, Darwin, Mac OS X Server, Security 2008-08-06
Identifying Java on Mac OS X (HTML)
TN2110: Discovering installed versions of J2SE, Mac OS X from Java code.
Java, Porting 2008-05-07
Compressing QuickTime Movies for the Web (HTML)
TN2218: Describes how to create QuickTime content optimized for use on the Web
Internet & Web, QuickTime 2008-05-01
QTKit Frequently Asked Questions (HTML)
TN2138: Provides answers to many frequently asked QTKit questions.
Cocoa, QuickTime 2008-04-24
Scripting Additions for Mac OS X (HTML) (日本語 HTML)
TN1164: Talks about how to create AppleScript scripting additions (OSAX) for Mac OS X.
Carbon, Scripting & Automation 2008-04-24
CrashReporter (HTML)
TN2123: Describes CrashReporter and how to debug with crash logs.
Tools 2008-04-01
Managing QTCompressionOptions - An overview of the QTCompressionOptionsWindow sample (HTML)
TN2219: Introductory overview of the QTCompressionOptionsWindow sample demonstrating one way to manage QTCompressionOptions objects.
Cocoa, Graphics & Imaging, QuickTime 2008-03-11
Audio Units: Embedding a Carbon View in a Cocoa Window (HTML)
TN2213: Carbon-Cocoa Integration for Audio Units
Audio 2008-02-29
Authorization for Everyone (HTML)
TN2095: Describes applications of Authorization Services beyond simple privilege requesting.
Carbon, Security 2008-01-30
New HID Manager APIs for Mac OS X version 10.5 (HTML)
TN2187: Mac OS X version 10.5 introduces new APIs for the HID Manager.
Carbon, Games, Hardware & Drivers, Porting, User Experience 2008-01-23
Embedding Bonjour in Windows Applications (HTML)
TN2210: Details the proper steps necessary for a Windows Developer to include Bonjour for Windows in their application.
Networking, Porting, User Experience 2008-01-17
iTunes Visual Plug-ins (HTML) (日本語 HTML)
TN2016: Describes the APIs used by iTunes and its Visual plug-ins to communicate back and forth.
Apple Applications 2007-11-13
The Sonogram View Demo Audio Unit (HTML)
TN2200: Describes the advanced audio unit features that the associated sample project demonstrates.
Audio 2007-11-07
Daemons and Agents (HTML)
TN2083: Describes the most common problems encountered with daemons and agents, and suggests detailed solutions.
Apple Applications, Carbon, Cocoa, Core Foundation, Darwin 2007-11-05
New Control Styles available within J2SE 5.0 on Mac OS X 10.5 (HTML)
TN2196: Details what new control styles are available within J2SE 5.0 on Mac OS X 10.5
Java, Porting, User Experience 2007-11-02
Using the QuickTime 64-bit Timecode Media Handler (HTML)
TN2198: Discusses 64-bit Timecode Media support added with Mac OS X 10.5 and QuickTime 7.3
QuickTime 2007-09-18
Thread-safe programming in QuickTime (HTML)
TN2125: Discusses how to use QuickTime from background threads for applications and component developers.
Carbon, Cocoa, QuickTime 2007-09-14
Preprocessing Info.plist files in Xcode Using the C Preprocessor (HTML)
TN2175: Describes workarounds for several issues concerning preprocessing Info.plist files in Xcode with the C preprocessor.
Tools 2007-08-14
Speeding up your Xcode Builds (HTML)
TN2190: Speed up your Xcode builds by leveraging the power of the Xcode build system
Tools 2007-08-14
Using Secure Event Input Fairly (HTML)
TN2150: Describes the proper use of EnableSecureEventInput.
Carbon, Cocoa, Core Foundation 2007-06-08
Querying Metadata With Spotlight (HTML)
TN2192: Describes how a Cocoa application can search Spotlight metadata.
Cocoa, User Experience 2007-06-04
C++ Tips and Tricks for Mac OS X (HTML)
TN2185: Tips and tricks for beginning to advanced C++ programmers on Mac OS X.
Tools 2007-05-25
Updating Applications for QuickTime 6 (HTML)
TN2140: Discusses steps to update QuickTime applications covering QuickTime 6.0 to 6.5.2
QuickTime 2007-05-15
Saving Printer Settings for Automatic Printing (HTML)
TN2155: Describes how you can save a a user selected Printer, Print Settings and Page Format to disk.
Carbon, Printing 2007-03-29
Multipathing with FibreChannel on Mac OS X (HTML)
TN2173: An explanation on how FibreChannel multipathing works on Mac OS X and how to design storage hardware to take advantage of it
Darwin, Hardware & Drivers, Mac OS X Server, Storage 2007-03-23
Creating an About Panel in Your Cocoa Application (HTML)
TN2179: Describes different ways in implementing your Cocoa application's "About" panel.
Cocoa, User Experience 2007-01-22
Frequently Asked Questions about the X Window System (X11) for Mac OS X (HTML)
TN2165: Answers several FAQs about the Mac OS X implementation of X11
Darwin 2007-01-22
Working Around Incorrect -needsToDrawRect: Behavior in Custom View Classes (HTML)
TN2107: Describes how to work around a bug in NSView's -needsToDrawRect: method.
Cocoa 2007-01-22
Kernel Authorization (HTML)
TN2127: Describes the kernel authorization (kauth) subsystem and its associated KPI.
Darwin, Security 2007-01-16
Mac OS X Debugging Magic (HTML)
TN2124: Collection of Mac OS X debugging hints and tips.
Tools 2007-01-10
Using AudioDeviceRead in Mac OS 10.4 (HTML)
TN2113: How to use AudioBufferLists with AudioDeviceRead in Tiger and beyond.
Audio, Hardware & Drivers 2006-11-29
Playing a sound file using the Default Output Audio Unit (HTML)
TN2097: Playing an Audio File using the Default Output Audio Unit
Audio, Carbon 2006-11-15
Thermal considerations for Mac Pro FB-DIMMs (HTML)
TN2156: Design considerations and specifications for the AMB and Heat spreader for the Mac Pro
Hardware & Drivers, Performance 2006-11-10
Enabling multi-threaded execution of the OpenGL framework (HTML)
TN2085: OpenGL on Intel-based Macintosh systems can use multi-threading to increase the performance of CPU-bound OpenGL-based applications.
Games, Graphics & Imaging, Performance 2006-11-07
Secrets of the GPT (HTML)
TN2166: Describes the new partition map format used by Intel-based Macintosh computers.
Darwin, Hardware & Drivers 2006-11-06
Image Color Management (HTML)
TN2115: Learn how to properly support color management in your application.
Graphics & Imaging 2006-11-01
The Font Panel for Carbon API (HTML) (日本語 HTML)
TN2058: The API to display and interact with the Font Panel from Carbon applications on Mac OS X.
Carbon, Graphics & Imaging 2006-10-26
Building Universal Binaries from "configure"-based Open Source Projects (HTML)
TN2137: Describes some methods for building some existing "configure"-based Open Source packages as universal binaries.
Darwin, Enterprise IT, Open Source 2006-10-05
Using AppleScript Scripts in Cocoa Applications (HTML)
TN2084: Explains how to work with AppleScript scripts in your Cocoa application.
Cocoa, Scripting & Automation, User Experience 2006-09-19
Tagging Handle and Pointer Data References in QuickTime (HTML)
TN1195: The use of data reference extensions used by QuickTime to tag handle and pointer data references.
Cocoa, QuickTime 2006-08-30
Device input using the HAL Output Audio Unit (HTML)
TN2091: How to get input from an audio device by using the HAL's Output Audio Unit.
Audio 2006-07-25
QuickTime for Windows ActiveX/COM Frequently Asked Questions (HTML)
TN2120: Provides answers to many frequently asked questions about the QuickTime ActiveX/COM control
QuickTime 2006-05-02
Uniquely Identifying a Macintosh Computer (HTML) (日本語 HTML)
TN1103: How to identify a specific Macintosh computer.
Carbon, Darwin, Enterprise IT, Hardware & Drivers, Mac OS X Server, Networking, Porting, Security 2006-04-25
JNI Development on Mac OS X (HTML)
TN2147: Discusses use of native APIs and UI elements from Java applications
Cocoa, Java, Tools, User Experience 2006-04-17
do shell script in AppleScript (HTML) (日本語 HTML)
TN2065: Frequently Asked Questions about the AppleScript "do shell script" command.
Scripting & Automation 2006-03-23
Making the most of Cocoa bindings in Quartz Composer (HTML)
TN2146: Describes how to best use Cocoa bindings with Quartz Composer.
Apple Applications, Cocoa, Graphics & Imaging 2006-03-03
Coalesced Updates (HTML)
TN2133: How to achieve the maxium frame rate in your Mac OS X application
Carbon, Games, Graphics & Imaging, Performance 2006-01-20
Nested Functions in Xcode (HTML)
TN2161: This technote explains how to port code which uses nested functions in Xcode 2.2.
Tools 2006-01-10
Improving Windows Screen Updating with QuickTime for Windows Double-Buffering Feature (HTML)
TN2153: QuickTime 6.4 includes a facility to improve screen updating for Windows applications
QuickTime 2005-10-18
Getting images in and out from Quartz Composer compositions (HTML)
TN2143: Describes how to efficiently pass images into and out of Quartz Composer
Apple Applications, Cocoa, Graphics & Imaging 2005-10-04
Multilingual Text Engine Frequently Asked Questions (HTML) (日本語 HTML)
TN2026: A list of frequently asked questions for the Multilingual Text Engine (MLTE).
Carbon, Internationalization, Text & Fonts 2005-09-12
Debugging Dashboard Widgets (HTML)
TN2139: Dashboard widget troubleshooting techniques, from start to finish.
Apple Applications, Internet & Web 2005-09-07
Obtaining 16 Bits-Per-Color Data with CUPS Raster Printing (HTML)
TN2149: Obtaining 16 Bits-Per-Color Data with CUPS Raster Printing
Graphics & Imaging, Hardware & Drivers, Open Source, Printing 2005-08-24
ColorSync on Mac OS X (HTML) (日本語 HTML)
TN2035: Describes ColorSync, which is fundamentally integrated into Mac OS X.
Graphics & Imaging 2005-08-10
Building Universal QuickTime Components for Mac OS X (HTML) (日本語 HTML)
TN2012: Discusses the changes necessary to build Universal Mach-O QuickTime Components for Mac OS X.
Carbon, QuickTime 2005-07-21
Memory Allocation Recommendations on Mac OS X (HTML)
TN2130: Recommends the best ways to allocate memory on Mac OS X.
Carbon 2005-07-12
Multi-Buffer Aware Image Decompressors (HTML)
TN2148: Describes how to mark a video decompressor component as multi-buffer aware for maximum performance with CoreVideo.
QuickTime 2005-07-12
Efficiently using Quartz Composer compositions with QuickTime (HTML)
TN2145: Describes how to best use Quartz Composer compositions in a QuickTime environment.
Graphics & Imaging, QuickTime 2005-07-05
Detecting low printer ink levels (HTML)
TN2144: How to detect printer supply levels using a low ink tool
Hardware & Drivers, Printing 2005-06-29
Frequently Asked Text Services Manager (TSM) Questions (HTML)
TN2128: Regroups a collection of Text Services Manager (TSM) questions frequently asked by Input Method Developers
Carbon, Cocoa, Core Foundation, Text & Fonts, User Experience 2005-06-24
Handling Audio Unit Events (HTML)
TN2104: This technote explains how to handle AudioUnit Events
Audio 2005-04-29
Tailoring Java 1.3.1 Applications for Mac OS X (HTML) (日本語 HTML)
Deprecated - TN2042: Deprecated. Please refer to " Java 1.3 Development for Mac OS X".
Java 2005-04-01
OpenGL Release Highlights - Mac OS X 10.3 Panther (HTML)
TN2131: Contains a list of bugs along with a short description on a release-by-release basis
Carbon, Cocoa, Games, Graphics & Imaging, Performance 2005-02-04
Idling Movie Importers (HTML)
TN2111: discusses how to write an idling movie importer component
QuickTime 2004-11-12
The System Sound APIs for Mac OS X 10.2, 10.3 and later (HTML)
TN2102: Discusses the System Sound APIs for correctly playing Alerts and User Interface Sound Effects
Audio 2004-07-13
Using the 3DMixer Audio Unit (HTML)
TN2112: Discusses how to use Core Audio's 3DMixer version 2.0
Audio, Carbon, Games, Performance 2004-06-14
HFS Plus Volume Format (HTML) (日本語 HTML)
TN1150: Describes the physical layout of an HFS Plus volume.
Carbon, Cocoa 2004-03-05
Scripting Interface Guidelines (HTML)
TN2106: Directions for providing a clean and consistent scripting interface for your application.
Carbon, Cocoa, Enterprise IT, Scripting & Automation 2004-03-01
Mac OS X 10.3 Navigation Services Changes (HTML) (日本語 HTML)
TN2105: Explains Navigation Services changes in Mac OS X 10.3 Panther
Carbon 2004-01-30
Understanding and Detecting OpenGL Functionality (HTML)
TN2080: Discusses OpenGL API design, and how to access the full power of hardware and software renderers.
Carbon, Cocoa, Graphics & Imaging 2003-12-29
The Enhanced Print Apple Event (HTML)
TN2082: Describes an enhancement to the print Apple event that gives developers more control over scripted printing.
Carbon, Cocoa, Printing, Scripting & Automation 2003-12-09
HIView APIs vs. Control Manager APIs (HTML)
TN2074: Provides some clarification on the similar APIs and similar behaviors found in the HIView and Control Managers.
Carbon 2003-10-29
Tuning for G5: A Practical Guide (HTML) (日本語 HTML)
TN2086: Explains how to get started tuning your application for the new Macintosh G5 architecture.
Carbon 2003-10-01
Porting Command Line Unix Tools to Mac OS X (HTML) (日本語 HTML)
TN2071: A general guide for Unix developers porting software to Mac OS X.
Darwin, Porting 2003-09-03
PowerPC G5 Performance Primer (HTML) (日本語 HTML)
TN2087: Offers a high-level overview of how to maximize performance on G5 Macs.
Carbon, Hardware & Drivers 2003-09-03
Version Territory (HTML) (日本語 HTML)
TN1132: Clarifies the format of data in the NumVersion structure used in a version ( 'vers') resource.
Carbon 2003-08-25
Driver Tuning on Panther or G5 (HTML) (日本語 HTML)
TN2090: Describes potential issues when using drivers in Panther or later, or on a Power Macintosh G5.
Darwin 2003-06-24
FireWire: DCL Programs Under Mac OS X (HTML) (日本語 HTML)
TN2072: Describes the structure and creation of DCL programs under Mac OS X.
Hardware & Drivers 2003-06-21
I/O Kit Power Controller (HTML) (日本語 HTML)
TN2076: Describes code to include in a KEXT in order to register for power management events.
Hardware & Drivers 2003-06-20
Full Screen changes in QuickTime 6.1 and 6.3 (HTML) (日本語 HTML)
TN2068: Changes made to the QuickTime Full Screen API with the release of QuickTime6.1 and QuickTime6.3
QuickTime 2003-06-19
TWAIN Data Sources for Mac OS X (HTML) (日本語 HTML)
TN2088: Describes how to implement a TWAIN Data Source (DS) for Mac OS X
QuickTime 2003-06-19
Power Management for Macintosh; getting started (HTML) (日本語 HTML)
TN2075: Outlines available documentation and its location for power management on Mac OS X and OS 9.
Hardware & Drivers 2003-05-30
Glyph Access Protocol (HTML) (日本語 HTML)
TN2079: How to support unencoded glyphs using the TSM, ATSUI and Cocoa.
Carbon, Internationalization 2003-05-06
Migrating to FSRefs & long Unicode names from FSSpecs (HTML) (日本語 HTML)
TN2078: Answers and coding techniques to commonly asked questions about adopting FSRefs and long file names.
Carbon 2003-05-06
Guide to Creating Kiosks on Mac OS X (HTML) (日本語 HTML)
TN2062: Discusses techniques used in creating applications which require kiosk-like functionality on Mac OS X.
Carbon, Cocoa, User Experience 2003-02-24
Ensuring Backwards Binary Compatibility - Weak Linking and Availability Macros on Mac OS X (HTML) (日本語 HTML)
TN2064: Ensuring that Mach-O applications built using today's Mac OS X runs on previous versions of the OS.
Carbon, Cocoa, Performance, Tools 2003-02-18