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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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AEBuild*, AEPrint* and Friends (HTML) (日本語 HTML)
TN2045: Describes the AEBuild* and AEPrint* family of routines.
Carbon, Scripting & Automation 2002-03-21
AEStream and Friends (HTML) (日本語 HTML)
TN2046: Describes the AEStream family of routines.
Carbon 2002-03-29
Apple Image Capture Camera Module changes for Mac OS X Update 10.1.3 (HTML) (日本語 HTML)
TN2040: Changes to the Apple Image Capture camera modules for Mac OS X Update 10.1.3.
Apple Applications 2002-04-16
ATA Interface Modules (HTML)
TN1192: Describes how to write device drivers for ATA host bus controllers, ie. ATA Interface Module.
Hardware & Drivers 1999-12-01
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
Audio Unit Validation Using the auval Tool (HTML)
TN2204: Test the conformance of audio units to Audio Unit Services.
Audio 2008-09-08
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
Boot Blocks (HTML)
Deprecated - DV03: Warns that Boot Block form and function will change and describes undocumented Boot Blocks features.
Hardware & Drivers 1987-03-01
Browser Plugins in Mac OS X (HTML) (日本語 HTML)
TN2020: Describes the format of web browser plugins for Mac OS X.
Apple Applications, Carbon 2001-05-31
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
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
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
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
CD-ROM Driver Calls (HTML)
Deprecated - DV22: Discusses public interface to Apple CD-ROM driver and supersedes information in AppleCD SC Developer's Guide.
Darwin, Hardware & Drivers 2000-08-14
The CGDirectPalette API (HTML) (日本語 HTML)
TN2008: Provides a reference for the CGDirectPalette API on Mac OS X
Carbon 2000-11-08
ChooseMovieClock and Video Output Components (HTML) (日本語 HTML)
TN2052: Discusses the ChooseMovieClock API introduced in QuickTime 6.
QuickTime 2002-05-07
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
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
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
CrashReporter (HTML)
TN2123: Describes CrashReporter and how to debug with crash logs.
Tools 2008-04-01
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
Creating NetBoot Server-Friendly Applications (HTML) (日本語 HTML)
TN1151: Guidelines to ensure applications are able to work correctly in a NetBoot environment.
Carbon, Mac OS X Server 2000-08-01
Cross-Platform Communication Using the PC Compatibility Messaging System (HTML)
TN1076: Describes Messaging System Architecture used in Apple's PC Compatibility and DOS Compatibility products
QuickTime 1996-10-01
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
Dealing with PCI Expansion Chassis Problems (HTML) (日本語 HTML)
TN1135: Discusses solutions for compatibility issues between PCI cards and attached expansion chassis.
Hardware & Drivers 1998-08-01
The Death of typeFSSpec: moving along to typeFileURL (HTML) (日本語 HTML)
TN2022: Discusses the typeFileURL format and using it to pass file references between applications in Mac OS X.
Carbon 2001-06-07
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
Debugging Dashboard Widgets (HTML)
TN2139: Dashboard widget troubleshooting techniques, from start to finish.
Apple Applications, Internet & Web 2005-09-07
Decompressing DV frames and accessing the pixels (HTML) (日本語 HTML)
TN2044: Discusses and demonstrates how to decompress DV frames and access the pixels directly.
QuickTime 2002-04-11
Detecting low printer ink levels (HTML)
TN2144: How to detect printer supply levels using a low ink tool
Hardware & Drivers, Printing 2005-06-29
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
Dialog Manager Helper Functions (HTML) (日本語 HTML)
TN1148: Discusses Dialog Manager calls available since System 7.0 that minimize work in managing dialogs.
Carbon 2000-08-14
Digital CD Audio (HTML) (日本語 HTML)
TN1187: Describes digital audio on the Macintosh.
Carbon, Hardware & Drivers 2000-04-01
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
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
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
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
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
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
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
The Euro Currency Symbol (HTML) (日本語 HTML)
TN1140: The available information about Mac OS and Mac Mac OS X Server support for the Euro currency symbol.
Internationalization, Text & Fonts 2000-01-01
Exclusive File Access in Mac OS X (HTML) (日本語 HTML)
TN2037: Covers exclusive file access In Mac OS X
Carbon, Cocoa 2002-05-01
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
Extending and Controlling Sherlock (HTML) (日本語 HTML)
TN1141: Discusses features of Sherlock 2, including additions to the Internet Search Plug-in language and Applescript commands.
Internet & Web 2000-08-14
File Manager File Handling Q&As (HTML)
FL515: Contains an archive of Q&As related to the Mac OS File Manager.
Carbon 2000-08-14
File Manager Performance and Caching (HTML)
FL16: Discusses traditional Mac OS file system input/output performance issues and the File Manager's volume cache.
Carbon, Cocoa 2000-09-01
Fill in the size field before calling ICMGetPixelFormatInfo (HTML) (日本語 HTML)
TN2057: Discusses why you should always fill in the size field of the ICMPixelFormatInfo structure before calling ICMGetPixelFormatInfo.
QuickTime 2002-07-17
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
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
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
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
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
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
Fundamentals of Open Firmware, Part I: The User Interface (HTML)
TN1061: Describes the Open Firmware User Interface, Forth and the Open Firmware language used in Apple products.
Hardware & Drivers 1996-07-01
Fundamentals of Open Firmware, Part II: The Device Tree (HTML)
TN1062: Describes the Open Firmware device tree.
Hardware & Drivers 1996-09-01
Fundamentals of Open Firmware, Part III: Understanding PCI Expansion ROM Choices for Mac OS (HTML)
TN1044: Recommended contents for PCI expansion ROMs, including a table of standard devices, properties and methods.
Hardware & Drivers 2001-06-26
GDB for MacsBug Veterans (HTML)
TN2030: Translate your experience with MacsBug into a working knowledge of the GNU source-level debugger (GDB).
Carbon, Darwin, Performance, Tools 2001-10-18
Gestalt Manager Q&As (HTML)
Deprecated - OS505: Describes methods utilizing the Gestalt Manager for determining whether a Macintosh is a U.S. machine.
Carbon 1992-12-01
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
Getting Started with GDB (HTML) (日本語 HTML)
TN2032: Explains common C, C++ and Objective-C debugging tasks using gdb, plus helpful tips and tricks.
Tools 2001-12-07
Getting Up to Speed with QuickTime VR: Notes from the Field (HTML)
TN1029: Understanding QuickTime VR: available tools and what a multimedia developer may be interested in.
QuickTime 2000-08-14
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
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
Handling Audio Unit Events (HTML)
TN2104: This technote explains how to handle AudioUnit Events
Audio 2005-04-29
HFS Plus Volume Format (HTML) (日本語 HTML)
TN1150: Describes the physical layout of an HFS Plus volume.
Carbon, Cocoa 2004-03-05
High-Speed SDRAM Design Considerations (HTML) (日本語 HTML)
TN1138: Illustrates certain issues with the design of high-speed SDRAM DIMM modules.
Hardware & Drivers 1998-08-01
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
How To Be a Good Multiple Users Citizen (HTML) (日本語 HTML)
TN1186: Documents the Mac OS 9 Multiple Users technology and gives some useful code snippets.
Carbon 2000-06-01
How to use the ATSUI Low Level APIs to get glyph outlines (HTML) (日本語 HTML)
TN2033: Covers the ATSUI low-level APIs.
Carbon, Internationalization, Text & Fonts 2001-11-26
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
ICM Drawing non-scheduled frames with QuickTime 6 (HTML) (日本語 HTML)
TN2060: Changes to how the Image Compression Manager draws non-scheduled frames in QuickTime 6 on Mac OS X.
QuickTime 2002-08-21
Identifying Java on Mac OS X (HTML)
TN2110: Discovering installed versions of J2SE, Mac OS X from Java code.
Java, Porting 2008-05-07
Idling Movie Importers (HTML)
TN2111: discusses how to write an idling movie importer component
QuickTime 2004-11-12
Image Color Management (HTML)
TN2115: Learn how to properly support color management in your application.
Graphics & Imaging 2006-11-01
Importing animated GIFs (HTML) (日本語 HTML)
TN2018: Describes how to tell if a GIF file or dataref contains more than one frame.
Graphics & Imaging, QuickTime 2001-04-17
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
In Search of Missing Links (HTML) (日本語 HTML)
TN1127: Demonstrates how to write CFM glue code which can call classic 68K A-Trap routines.
Carbon 1998-05-01
Installable Keyboard Layouts (HTML) (日本語 HTML)
TN2056: Explains how to define a Unicode keyboard via an XML text file.
Internationalization, User Experience 2002-09-27
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
Java Runtime Properties for Mac OS X (HTML) (日本語 HTML)
Deprecated - TN2031: Runtime properties for use with Java 1.3.1 applications.
Java 2002-06-12
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
Kernel Authorization (HTML)
TN2127: Describes the kernel authorization (kauth) subsystem and its associated KPI.
Darwin, Security 2007-01-16
Kernel Core Dumps (HTML)
TN2118: Explains how to gather and use remote kernel core dumps.
Darwin, Networking, Tools 2008-11-12
Living in a Dynamic TCP/IP Environment (HTML) (日本語 HTML)
TN1145: Describes some of the intricacies of dealing with TCP/IP in a dynamic environment, such as Open Transport.
Networking 2002-08-27
Locating Application Support Files under Mac OS X (HTML) (日本語 HTML)
TN2015: Describes different methods for an application to determine its location.
Carbon 2001-03-27
Locking and Unlocking Handles (HTML) (日本語 HTML)
Deprecated - TN1122: Explains Memory Manager handles: locking, unlocking, and preserving a handle's state.
Carbon 1998-02-01
Mac OS X 10.2 (HTML)
TN2053: Describes software development-related changes provided in system software update Mac OS X 10.2.
Carbon, Cocoa, Performance 2002-09-04
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
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
Mac OS X Debugging Magic (HTML)
TN2124: Collection of Mac OS X debugging hints and tips.
Tools 2007-01-10
The Mac OS X Font Manager (HTML) (日本語 HTML)
TN2024: Information on installing and accessing fonts programatically.
Graphics & Imaging 2001-07-11
Mac OS X QuickDraw Performance (HTML) (日本語 HTML)
TN2051: Some of the trouble spots in the Mac OS X windowing system and how to avoid them.
Carbon, Graphics & Imaging 2003-02-13
Mac OS X v10.1 (HTML)
TN2029: Updated list of APIs for Mac OS X 10.1.
Tools 2001-10-15
Mac OS X: v10.1.1 - v10.1.3 (HTML)
TN2043: Describes changes provided by system software updates 10.1.1 through 10.1.3.
Carbon, Cocoa, Performance 2002-03-06
Mac OS X: versions 10.0.1 through 10.0.4 (HTML) (日本語 HTML)
TN2025: List of API differences betweem 10.0.1 trough 10.0.4
Tools 2001-07-26
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
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
Maximizing Your Media: A Brief Guide To the Latest and Greatest QuickTime Media Types (HTML) (日本語 HTML)
TN1087: Documents Quicktime methodolgies to ensure applications see any media types available.
QuickTime 1996-12-01
Memory Allocation Recommendations on Mac OS X (HTML)
TN2130: Recommends the best ways to allocate memory on Mac OS X.
Carbon 2005-07-12