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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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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
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 2001-05-31
Daemons and Agents (HTML)
TN2083: Describes the most common problems encountered with daemons and agents, and suggests detailed solutions.
Apple Applications 2007-11-05
Debugging Dashboard Widgets (HTML)
TN2139: Dashboard widget troubleshooting techniques, from start to finish.
Apple Applications 2005-09-07
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 2008-08-06
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 2005-10-04
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
Making the most of Cocoa bindings in Quartz Composer (HTML)
TN2146: Describes how to best use Cocoa bindings with Quartz Composer.
Apple Applications 2006-03-03
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 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 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
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
Handling Audio Unit Events (HTML)
TN2104: This technote explains how to handle AudioUnit Events
Audio 2005-04-29
Optimizing Audio Unit User Experience in Logic Studio (HTML)
TN2207: How to provide the best user experience with your audio unit in Logic Studio
Audio 2009-04-23
Playing a sound file using the Default Output Audio Unit (HTML)
TN2097: Playing an Audio File using the Default Output Audio Unit
Audio 2006-11-15
The Sonogram View Demo Audio Unit (HTML)
TN2200: Describes the advanced audio unit features that the associated sample project demonstrates.
Audio 2007-11-07
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 AudioDeviceRead in Mac OS 10.4 (HTML)
TN2113: How to use AudioBufferLists with AudioDeviceRead in Tiger and beyond.
Audio 2006-11-29
Using the 3DMixer Audio Unit (HTML)
TN2112: Discusses how to use Core Audio's 3DMixer version 2.0
Audio 2004-06-14
AEBuild*, AEPrint* and Friends (HTML) (日本語 HTML)
TN2045: Describes the AEBuild* and AEPrint* family of routines.
Carbon 2002-03-21
AEStream and Friends (HTML) (日本語 HTML)
TN2046: Describes the AEStream family of routines.
Carbon 2002-03-29
Authorization for Everyone (HTML)
TN2095: Describes applications of Authorization Services beyond simple privilege requesting.
Carbon 2008-01-30
Browser Plugins in Mac OS X (HTML) (日本語 HTML)
TN2020: Describes the format of web browser plugins for Mac OS X.
Carbon 2001-05-31
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 2005-07-21
The CGDirectPalette API (HTML) (日本語 HTML)
TN2008: Provides a reference for the CGDirectPalette API on Mac OS X
Carbon 2000-11-08
Coalesced Updates (HTML)
TN2133: How to achieve the maxium frame rate in your Mac OS X application
Carbon 2006-01-20
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 2000-08-01
Daemons and Agents (HTML)
TN2083: Describes the most common problems encountered with daemons and agents, and suggests detailed solutions.
Carbon 2007-11-05
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
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 2000-04-01
The Enhanced Print Apple Event (HTML)
TN2082: Describes an enhancement to the print Apple event that gives developers more control over scripted printing.
Carbon 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 2003-02-18
Exclusive File Access in Mac OS X (HTML) (日本語 HTML)
TN2037: Covers exclusive file access In Mac OS X
Carbon 2002-05-01
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 2000-09-01
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 2006-10-26
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 2005-06-24
GDB for MacsBug Veterans (HTML)
TN2030: Translate your experience with MacsBug into a working knowledge of the GNU source-level debugger (GDB).
Carbon 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
Glyph Access Protocol (HTML) (日本語 HTML)
TN2079: How to support unencoded glyphs using the TSM, ATSUI and Cocoa.
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 2003-02-24
HFS Plus Volume Format (HTML) (日本語 HTML)
TN1150: Describes the physical layout of an HFS Plus volume.
Carbon 2004-03-05
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 2001-11-26
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
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 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 2008-08-06
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 2003-02-13
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 2002-03-06
Memory Allocation Recommendations on Mac OS X (HTML)
TN2130: Recommends the best ways to allocate memory on Mac OS X.
Carbon 2005-07-12
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
Moving Your Code to Mac OS X (HTML) (日本語 HTML)
TN2003: Talks about considerations for moving older Mac OS 9 applications to Mac OS X.
Carbon 2000-10-05
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 2005-09-12
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 2008-01-23
The Notification Manager: Problems & Fixes (HTML)
TN1026: Describes issues with the Notification Manager 'activate' and 'update' events.
Carbon 1996-02-01
Observing Process Lifetimes Without Polling (HTML)
TN2050: Shows a variety of methods to observe process lifetimes without polling.
Carbon 2008-09-10
On Drag Manager Additions (Release 1.1) (HTML)
TN1043: Explains how to take advantage of the new Drag Manager features, including the translucent dragging.
Carbon 2000-08-14
On Launching an App with a Document (HTML) (日本語 HTML)
TN1002: Explains how to programatically launch an application and then tell it to open a document.
Carbon 2000-07-01
Open Transport STREAMS FAQ (HTML)
Deprecated - TN1117: Decribes writing STREAMS modules and drivers for use with Open Transport.
Carbon 1997-12-01
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 2005-02-04
Pascal to C: PROCEDURE Parameters (HTML)
Deprecated - PT31: Nested procedures and PROCEDURE parameters in Pascal when converting them into C or C++.
Carbon 1990-02-01
Pending Update Perils (HTML) (日本語 HTML)
Deprecated - TN1147: Discusses potential problems when pending update events for windows behind modal dialogs are not serviced.
Carbon 2000-08-14
Playing a sound file using the Default Output Audio Unit (HTML)
TN2097: Playing an Audio File using the Default Output Audio Unit
Carbon 2006-11-15
The 'plst' Resource (HTML) (日本語 HTML)
TN2013: Describes the 'plst' resource for Carbon-based applications.
Carbon 2002-02-07
Power Manager 2.0 (HTML) (日本語 HTML)
TN1190: Describes the Macintosh Power Manager 2.0.
Carbon 2000-08-14
PowerPC G5 Performance Primer (HTML) (日本語 HTML)
TN2087: Offers a high-level overview of how to maximize performance on G5 Macs.
Carbon 2003-09-03
The Preferences Problem (HTML) (日本語 HTML)
Deprecated - TN1134: Outlines typical problems with preferences files and some of their solutions.
Carbon 1998-10-01
Programmatic Mounting of AppleShare Volumes (HTML) (日本語 HTML)
TN1111: Mount an AppleShare volume using PBVolumeMount. AFPVolMountInfo structure is defined along with the AFPXVolMountInfo structure.
Carbon 1997-10-01
Resolving Alias Files Quietly (HTML)
FL30: Describes how to resolve alias files on remote volumes without user interaction.
Carbon 1999-11-01
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 2007-03-29
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 2008-04-24
Scripting Interface Guidelines (HTML)
TN2106: Directions for providing a clean and consistent scripting interface for your application.
Carbon 2004-03-01
Searching Volumes - Solutions and Problems (HTML)
Deprecated - FL31: Discusses searching volumes using PBCatSearch.
Carbon 1988-10-01
Thread-safe programming in QuickTime (HTML)
TN2125: Discusses how to use QuickTime from background threads for applications and component developers.
Carbon 2007-09-14
Threading Architectures (HTML) (日本語 HTML)
TN2028: Describes the various threading APIs on Mac OS 9 and Mac OS X.
Carbon 2001-08-08
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
Understanding and Detecting OpenGL Functionality (HTML)
TN2080: Discusses OpenGL API design, and how to access the full power of hardware and software renderers.
Carbon 2003-12-29
Uniquely Identifying a Macintosh Computer (HTML) (日本語 HTML)
TN1103: How to identify a specific Macintosh computer.
Carbon 2006-04-25
Update: Borrowed AFP Sessions (HTML) (日本語 HTML)
TN1106: Shows how to borrow the session reference number of an AFP volume mounted by the Macintosh File System.
Carbon 2000-08-14
Using collection classes safely with multithreaded applications (HTML) (日本語 HTML)
TN2059: Describes some problems with and workarounds for using mutable collection classes in multithreaded applications.
Carbon 2002-09-10
Using Launch Services for discovering document binding and launching applications (HTML) (日本語 HTML)
TN2017: Interface to starting applications, opening documents either with a specific application, or using the default application.
Carbon 2001-04-17
Using Secure Event Input Fairly (HTML)
TN2150: Describes the proper use of EnableSecureEventInput.
Carbon 2007-06-08
Using the 3DMixer Audio Unit (HTML)
TN2112: Discusses how to use Core Audio's 3DMixer version 2.0
Carbon 2004-06-14
Using the Drag Manager to Interact with and Manipulate File System Entities (HTML) (日本語 HTML)
TN1085: Details the data flavors provided by the Drag Manager for interacting with and manipulating file system entities.
Carbon 1996-12-01
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
Version Territory (HTML)
Deprecated - OV12: Please see Technical Note 1132 - Version Territory.
Carbon 1988-04-01
Virtual Memory Application Compatibility (HTML)
Deprecated - TN1094: Provides an introduction to how virtual memory works under Traditional Mac OS.
Carbon 1998-04-01
Weak-Linking to a Code Fragment Manager-based Shared Library (HTML) (日本語 HTML)
TN1083: Describes weak-linking to CFM shared libraries.
Carbon 1996-11-01
Working with Multiprocessing Services (HTML) (日本語 HTML)
TN1071: Discusses some techniques for use with Apple's Multiprocessing Services APIs.
Carbon 2000-08-14
You Want Permission to do What?!! (HTML)
FL37: Provides an-depth discussion of the File Manager and AFP permission models.
Carbon 1999-04-01
Creating an About Panel in Your Cocoa Application (HTML)
TN2179: Describes different ways in implementing your Cocoa application's "About" panel.
Cocoa 2007-01-22
Daemons and Agents (HTML)
TN2083: Describes the most common problems encountered with daemons and agents, and suggests detailed solutions.
Cocoa 2007-11-05
The Enhanced Print Apple Event (HTML)
TN2082: Describes an enhancement to the print Apple event that gives developers more control over scripted printing.
Cocoa 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.
Cocoa 2003-02-18