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Leopard Reference Library
QuickTime applications can run on Mac OS X and Microsoft Windows. QuickTime content plays on Mac and Windows computers and on many handheld devices. Content can be served by progressive download from any web server or as real-time streams from streaming servers on all major operating systems. QuickTime supports dozens of file and compression formats for images, video, and audio.

A guided introduction and learning path for developers new to QuickTime.   Essential information for developers using QuickTime.   API references organized by framework.
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Intercepting QuickTime Wired Actions (HTML)
QA1095: Demonstrates how to intercept wired actions in a movie controller action filter function.
Movie Basics, Wired Movies and Sprites Technical Q&As 2001-11-14
Determining required components for QuickTime movies (HTML)
QA1093: Shows how to determine if a given QuickTime movie requires a component that's not currently installed on the system.
Movie Basics Technical Q&As 2001-11-07
Quality of QuickTime video effects (HTML)
QA1089: Describes some of the factors affecting QuickTime video effects quality.
Compression & Decompression, Video Effects & Transitions Technical Q&As 2001-10-26
QuickTime and Carbon Events (HTML)
QA1090: Discusses how to ensure smooth movie playback when using Carbon Events in an application.
Design Guidelines, Movie Basics Technical Q&As 2001-10-26
QuickTime Supported YUV Pixel Formats (HTML)
QA1060: Describes which YUV pixel formats are supported by QuickTime.
Carbon, Compression & Decompression, QuickTime Component Creation Technical Q&As 2001-07-19
Exporting TIFF files in little-endian format (HTML)
QA1044: Explains how to export a TIFF file in little-endian format.
Import & Export Technical Q&As 2001-06-26
Using SetMovieGWorld to draw to the window back buffer (HTML)
QA1043: Explains how to draw into the back buffer with SetMovieGWorld.
Movie Basics Technical Q&As 2001-06-26
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, Import & Export Technical Notes 2001-04-17
Creating Sub GWorlds using QTNewGWorldFromPtr (HTML)
QA1014: Using QTNewGWorldFromPtr to create sub GWorlds which reference the pixel data of other GWorlds.
Carbon, Graphics & Imaging Technical Q&As 2001-03-20
Extracting DV Fields using QTNewGWorldFromPtr (HTML)
QA1017: Describes using QTNewGWorldFromPtr to access individual fields contained within a frame of DV source.
Carbon, Graphics & Imaging, Movie Basics Technical Q&As 2001-03-20
LockPixels and DisposeGWorld with QTNewGWorldFromPtr (HTML)
QA1007: Clarifies some issues surrounding pointer ownership when creating GWorlds with QTNewGWorldFromPtr
Carbon, Graphics & Imaging Technical Q&As 2001-02-26
Keyframes and AddMediaSample (HTML)
QTMCC20: Describes setting flags correctly for AddMediaSample to mark keyframes and difference frames.
Compression & Decompression, Movie Creation Technical Q&As 2000-12-01
Graphics Importer -8970 errors & TIFF Support (HTML)
QTMCC18: Discusses the -8970 error when using graphics importers with certain TIFF files.
Compression & Decompression, Import & Export Technical Q&As 2000-11-29
Preview image quality of DV capture (HTML)
QTMCC12: Describes how to get full resolution preview image quality when capturing DV.
Movie Creation Technical Q&As 2000-10-25
Component Definitions (HTML)
QTMCC14: Discusses the differences between components, component instances, component storage, and component RefCons.
QuickTime Component Creation Technical Q&As 2000-09-22
Decompressing MP3 (HTML)
QTMCC15: Discusses decompressing an MP3 file into a buffer using SoundConverter APIs.
Import & Export Technical Q&As 2000-09-22
Importing Sys 7 Snds (HTML)
QTMCC16: Describes how to import System 7 sound files using QuickTime.
Import & Export Technical Q&As 2000-09-22
Track Editing (HTML)
QTMCC17: Discusses different APIs used to edit tracks in QuickTime movies.
Movie Basics Technical Q&As 2000-09-22
Batch Exporting movie sound tracks with ConvertMovieToFile() (HTML)
QTMTB62: Explains how to configure ConvertMovieToFile to use the same configuration information for more than one call.
Audio, Movie Basics Technical Q&As 2000-09-05
BeginMediaEdits -2050 badDataRefIndex error after calling NewMovie (HTML)
QTMTB58: Describes reasons why BeginMediaEdits would return the -2050 badDataRefIndex error code during a media-editing session.
Movie Basics Technical Q&As 2000-09-05
Creating track references when editing movies (HTML)
QTMTB61: Explains how to use the InsertTrackSegment function to copy a track reference rather than the actual media.
Movie Basics, Movie Internals Technical Q&As 2000-09-05
QuickTime .qtx/.qtr/.qt/.mov files defined (HTML)
QTW99: Definitions for the QuickTime for Windows .qtx/.qtr/.qt/.mov files.
QuickTime for Windows Technical Q&As 2000-09-05
Saving changes to modified movies (HTML)
QTMTB60: Describes how to ensure any changes made to a movie are saved.
Movie Basics Technical Q&As 2000-09-05
Using MovieExportSetSampleDescription to specify the format of exported data (HTML)
QTMTB59: Describes using the ConvertMovieToFile routine to export a WAV audio-only movie to an AIFF file using a specific compressor.
Audio, Import & Export, Movie Basics Technical Q&As 2000-09-05
Using Windows GDI for all drawing (HTML)
QTW98: Using the Windows Graphics Device Interface (GDI) for all drawing under QuickTime for Windows.
QuickTime for Windows Technical Q&As 2000-09-05
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.
Virtual Reality Technical Notes 2000-08-14
How do I decompress individual frames into an offscreen? (HTML)
QTMTB57: Describes methods for decompressing individual frames of a video track into an offscreen memory buffer.
Movie Basics Technical Q&As 2000-04-24
Importing image data from memory (HTML)
QTMTB56: Explains using the graphics importer API's to read image data which resides in memory.
Import & Export, Movie Basics Technical Q&As 2000-04-03
QuickTime 4.1.1/4.1.2 (HTML)
Deprecated - TN1197: Changes between QuickTime 4.1 and the update QuickTime 4.1.1 and 4.1.2.
Carbon Technical Notes 2000-04-01
Legacy Devices (HTML)
HW84: Discusses why legacy devices with hard-wired I/O addresses may not work properly with Open Firmware.
Hardware & Drivers Technical Q&As 2000-03-20
Setting Export Quality (HTML)
QTMCC13: Demonstrates how to change the compression factor when exporting a JPEG file.
Import & Export Technical Q&As 1999-12-06
When to use PCMCIA, PC Card, and CardBus (HTML)
HW77: Explains the differences between PCMCIA, PC Card, and CardBus.
Hardware & Drivers Technical Q&As 1999-11-15
Endian Concerns When Playing 'snd ' Resources (HTML)
QTW97: Use the Resource Manager to avoid byte-swapping 'snd ' resources before playing under Windows
QuickTime for Windows Technical Q&As 1999-11-08
QuickTime DirectDraw Surfaces (HTML)
QTW96: How to make QuickTime 4 for Windows draw onto a surface using your custom DirectDraw object.
QuickTime for Windows Technical Q&As 1999-11-01
SGSetSettings unexpected results (HTML)
QTMTB55: Explains why subsequent calls to the SGSetSettings can fail after the first call to SGSetSettings completed successfully.
Movie Basics, Movie Creation Technical Q&As 1999-10-11
QuickTime 4.0.3 (HTML) (日本語 HTML)
TN1183: Changes between the final release of QuickTime 4 and the update release of QuickTime 4.0.3.
Design Guidelines Technical Notes 1999-10-01
Setting the movie background color (HTML) (日本語 HTML)
QTMTB53: Describes how to apply a background color to an entire movie.
Movie Basics Technical Q&As 1999-08-16
Playing memory-resident WAVE data using QuickTime 4 (HTML) (日本語 HTML)
QTMTB52: Explains how to play memory-resident WAVE data in QuickTime 4 or later.
Audio, Import & Export, Movie Basics Technical Q&As 1999-07-21
ConvertMovieToFile unexpected results (HTML) (日本語 HTML)
QTMTB51: Explains why white frames can occur in a movie that was saved using ConvertMovieToFile.
Import & Export, Movie Basics Technical Q&As 1999-06-14
Difference between using Restart or Shut Down in the Finder's Special menu in Open Firmware (HTML) (日本語 HTML)
HW47: Explains the differences between using Restart or Shut Down on Open Firmware
Hardware & Drivers Technical Q&As 1999-02-15
Playing QuickTime 3 Movie Sound Data (HTML) (日本語 HTML)
QTMTB50: Explains why a movie's sound data can continue to play longer than video data.
Audio, Movie Basics, QuickTime for Windows Technical Q&As 1998-11-09
Decompressing IMA WAVE files (HTML)
QTMCC11: Describes how to use the Sound Manager to decompress and play Window's Microsoft ADPCM-compressed WAVE files.
Import & Export Technical Q&As 1998-10-19
Calling InitializeQTML from DLL Main (HTML) (日本語 HTML)
QTW89: Don't do anything significant in your QuickTime 3 for Windows DLL Main procedure.
QuickTime for Windows Technical Q&As 1998-09-21
Checking For Presence of QuickTime 3 for Windows (HTML) (日本語 HTML)
QTW88: Programatically checking for the presence of QuickTime 3 for Windows.
QuickTime for Windows Technical Q&As 1998-09-21
CreatePortAssociation And WM_QUERYNEWPALETTE Message (HTML) (日本語 HTML)
QTW91: Activating your custom palette under QuickTime 3 for Windows by calling NSetPalette and ActivatePalette.
QuickTime for Windows Technical Q&As 1998-09-21
MSVC++ link error LNK4098 When Building QuickTime 3 for Windows Apps (HTML) (日本語 HTML)
QTW94: Avoid MSVC++ link error LNK4098 when building QuickTime 3 for Windows applications.
QuickTime for Windows Technical Q&As 1998-09-21
Using Mac Toolbox routines Under Windows 98/95/NT (HTML) (日本語 HTML)
QTW87: Some Macintosh Toolbox functions are available with QuickTime 3 for Windows.
QuickTime for Windows Technical Q&As 1998-09-21
Using Mac-style Resources (HTML) (日本語 HTML)
QTW86: Using Mac-style resources in a Windows 98/95/NT or DLL using QuickTime 3 for Windows FSpOpenResFile function.
QuickTime for Windows Technical Q&As 1998-09-21
QuickTime 3.0.2 (HTML) (日本語 HTML)
Deprecated - TN1139: Describes changes between the final release of QuickTime 3.0 and update 3.0.2.
Carbon Technical Notes 1998-09-01
What is SetMovieDefaultDataRef? (HTML) (日本語 HTML)
QTMTB48: Describes the routine SetMovieDefaultDataRef and includes sample code showing how to use it.
Movie Basics Technical Q&As 1997-03-14
Saving QuickTime Movie Files (HTML) (日本語 HTML)
QTMTB47: Explains a few complications one might face in creating and saving QuickTime movie files.
Movie Basics Technical Q&As 1997-01-31
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.
File Format Specification Technical Notes 1996-12-01
ImageDescription Extension Format (HTML) (日本語 HTML)
QTMCC04: Gives a reference for information on image description extensions.
QuickTime Component Creation Technical Q&As 1996-11-27
QuickTime Preview Behavior (HTML) (日本語 HTML)
QTMCC10: Describes the expected behavior of the create/update preview button in the SFPGetFilePreview dialog.
QuickTime for Windows Technical Q&As 1996-11-27
Understanding the Differences Between Apple and Windows IMA-ADPCM Compressed Sound Files (HTML)
TN1081: Details the differences between Apple IMA and Windows IMA (ADPCM) compressed sound files.
QuickTime for Windows Technical Notes 1996-11-01
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 for Windows Technical Notes 1996-10-01
QuickTime For Windows: Resolving Common Installation Issues (HTML) (日本語 HTML)
TN1074: Details install dialog, customizing installation, and uninstalling QuickTime for Windows v 2.1.2.
QuickTime for Windows Technical Notes 1996-10-01
Derived Media Handler Components Update (HTML) (日本語 HTML)
QTMCC08: Gives practical limits for data transfer rates under QuickTime 2.5.
QuickTime Component Creation Technical Q&As 1996-08-21
Movie Import Component Selectors (HTML) (日本語 HTML)
QTMCC09: Explains why there is no documentation on the movie import API selectors: kMovieImportGetFileTypeSelect and kMovieImportDataRefSelect.
QuickTime Component Creation Technical Q&As 1996-08-21
QuickTime Music Architecture Header Update (HTML) (日本語 HTML)
QTMA06: Explains missing and changed items in QuickTime 2.5.
Audio Technical Q&As 1996-08-21
Linked Movies with Different Color Palettes (HTML) (日本語 HTML)
QTMRF07: Explains why a QuickTime movie shouldn't contain subMovies that have different color palettes.
Movie Internals Technical Q&As 1996-02-15
Handling of Update Events While a Movie Plays (HTML)
Deprecated - QTMTB45: Describes timing issues that can be caused by applications calling WaitNextEvent while playing a QuickTime movie.
Movie Basics Technical Q&As 1995-09-15
How to Compute Data Rate for QuickTime Movies (HTML)
QTMTB46: Describes two methods of measuring the rate of samples for Quicktime movies.
Movie Basics Technical Q&As 1995-09-15
Incorrect Inside Macintosh Volume V documentation (HTML)
Deprecated - QD15: Identifies incorrect documentation in Inside Macintosh Volume V regarding the formats of PnPixPat and BkPixPat opcodes.
Carbon Technical Q&As 1995-09-15
Compressed and Uncompressed Samples in the Same Track (HTML)
QTMTB43: Recommends not to mix compressed and uncompressed data samples into the same sound track.
Movie Basics Technical Q&As 1995-08-01
Correction to SetMediaDataRef, short, not pointer (HTML)
QTMTB44: Makes a correction to the description of SetMediaDataRef in the QT2.0 CD.
Media Types & Media Handlers, Movie Basics Technical Q&As 1995-08-01
Creating Sample Descriptor Atoms for a Non-Mac Device (HTML)
QTPC06: Lists a reference for information on QuickTime atoms and their formats.
Design Guidelines Technical Q&As 1995-08-01
Image Compression Dialog Options (HTML)
QTICM14: Describes how to display an extra Options button in the normal Image Compression dialog.
Compression & Decompression Technical Q&As 1995-08-01
MPEG Compression in QuickTime (HTML)
QTICM16: Describes extracting information from an MPEG movie file and placing it in a specific MPEG track.
Movie Creation Technical Q&As 1995-08-01
Specifying Chunk Sizes (HTML)
QTPC08: Discusses the meaning of a QuickTime movie atom's chunk value.
Design Guidelines, Movie Internals Technical Q&As 1995-08-01
Setting the option button in the ICM dialog (HTML)
QTMCC02: Describes how your codec can display an extra Options button in the Standard Compression dialog.
QuickTime Component Creation Technical Q&As 1995-06-01
Accessing Decompressed Images (HTML)
QTMTB27: Demonstrates the use of a transfer procedure to access a decompressed image and manipulate it prior to display.
Movie Basics Technical Q&As 1995-05-01
Adding QuickTime Movie Data to Non-QuickTime Files (HTML)
QTMTB31: Describes how to embed QuickTime movies into files, and play back on Windows or Mac.
Movie Basics Technical Q&As 1995-05-01
Choosing the Position Where a Movie is Pasted (HTML)
QTMTB26: Explains how the position of a pasted movie is determined and shows how to force a given location.
Movie Basics, Movie Internals Technical Q&As 1995-05-01
CompressSequenceBegin & Ethernet in QuickTime (HTML)
QTICM13: Describes resolving an issue with missing ImageDescription when sending compressed images over Ethernet using CompressSequenceBegin.
Compression & Decompression Technical Q&As 1995-05-01
Correct Time Values (HTML)
QTMTB32: Demonstrates finding correct time values for GetMoviePict to get all the frames of a QuickTime movie.
Movie Basics Technical Q&As 1995-05-01
Creating Thumbnail PICTs (HTML)
QTICM08: Describes transforming the generic icons of QuickTime PICT-created files into thumbnail icons of these PICTs.
Compression & Decompression Technical Q&As 1995-05-01
Determining QuickDrawVideo Media Pixel Depth (HTML)
QTMTB17: Demonstrates how to retrieve the pixel depth of a QuickTime video media or movie.
Media Types & Media Handlers, Movie Basics Technical Q&As 1995-05-01
Developing a QuickTime Musical Instrument (HTML)
Deprecated - QTMA05: Explains resolving the lack of QuickTime 2.0 API support for creating new music components.
Audio Technical Q&As 1995-05-01
Functions that Modify Movie Properties, QuickTime Track, and Movie Sound Volume (HTML)
QTMTB39: Explains movie volume values, and how to exceed the maximum level using Sound Manager 3.0.
Movie Basics Technical Q&As 1995-05-01
GDGetScale (HTML)
Deprecated - QTICM04: Describes the function call GDGetScale, its parameters, and errors it may encounter.
Compression & Decompression Technical Q&As 1995-05-01
GDHasScale (HTML)
Deprecated - QTICM03: Describes the function GDHasScale; lists what it returns, its main purpose, parameters, and possible errors.
Compression & Decompression Technical Q&As 1995-05-01
GDSetScale (HTML)
Deprecated - QTICM05: Describes the function GDSetScale, its parameters, and the errors it may encounter.
Compression & Decompression Technical Q&As 1995-05-01
How to Get the First Video Frame (HTML)
QTMCC01: Describes how to get the first frame of a movie using GetMovieNextInterestingTime.
Movie Basics Technical Q&As 1995-05-01
How to Tell Whether a Picture is QuickTime-Compressed (HTML)
QTICM02: Details how to determine whether a picture's QuickTime-compressed, contains QuickTime-compressed images, and type of compression used.
Compression & Decompression Technical Q&As 1995-05-01
MCSetClip and Clipping with the Movie Controller (HTML)
QTMTB18: Tells why the movie controller ignores the clip set by SetMovieDisplayClipRgn and shows a correct clipping technique.
Movie Basics, Movie Internals Technical Q&As 1995-05-01
PICT, QuickTime-Compressed Testing (HTML)
QTICM09: Details how to determine whether a picture's QuickTime-compressed, contains QuickTime-compressed images, and type of compression used
Compression & Decompression Technical Q&As 1995-05-01
Preroll Movies (HTML)
QTMTB42: Lists the advantages of calling PreRollMovie to improve the performance of QuickTime movies.
Movie Basics Technical Q&As 1995-05-01
QuickTime & Noise Problems (HTML)
QTPC02: Talks about ways to reduce noise in movies created with the CinePak codec.
Compression & Decompression Technical Q&As 1995-05-01
QuickTime & PutMovieIntoDataFork, Offsets (HTML)
QTMTB34: Explains restrictions on moving movie data around in a file after creation; also gives work arounds.
Movie Basics Technical Q&As 1995-05-01
QuickTime Sound (HTML)
QTMRF04: Explains what the sowt and the twos format is in QuickTime.
QuickTime for Windows Technical Q&As 1995-05-01
QuickTime Toolbox GetMovieTime Call (HTML)
QTMTB38: Provides the calls to change the current time and to reposition a movie to play from the start.
Movie Basics Technical Q&As 1995-05-01
Retrieving Audio from QuickTime Files (HTML)
QTMTB30: Describes how to retrieve audio from QuickTime files in 1 second chunks.
Import & Export, Movie Basics Technical Q&As 1995-05-01
Setting a Movie's Clipping Region (HTML)
QTMTB23: Explains why ShowMoviePoster doesn't honor the clipping region when clipped to the cell size.
Movie Basics, Movie Internals Technical Q&As 1995-05-01
Stepping Through QuickTime-Movie (HTML)
QTMTB28: Describes how to get the first frame of a movie using GetMovieNextInterestingTime.
Movie Basics, Movie Internals Technical Q&As 1995-05-01