Jump To:
Technical Q&As are short question and answer formatted pages that provide answers to questions frequently received at Apple Developer Technical Support.

Document Descriptions
On Off
Display

Sort by
Title
Sort by
Topic
Sorted by
Date
SetSoundMediaBalance balance parameter clarification (HTML) (日本語 HTML)
QTMTB49: Describes correct parameter values for the SetSoundMediaBalance routine.
QuickTime 2004-12-01
My custom item dismisses my Navigation Services dialog (HTML)
QA1381: Gives a workaround for dismissive clicks on items in the custom area of Navigation Services dialogs.
Carbon, User Experience 2004-11-22
Symbol to Library in GDB (HTML)
QA1388: Shows how to find the library containing a symbol in GDB.
Tools 2004-11-15
Sending an Email (HTML)
QA1084: Shows how to create an email in the user's prefered email application.
Apple Applications, Carbon, Cocoa, Networking 2004-11-05
Using Interface Builder's NSOpenGLView or Custom View objects for an OpenGL application (HTML)
QA1167: Describes usage cases for both NSOpenGLViews and Custom Views for Cocoa OpenGL applications
Cocoa, Games, Graphics & Imaging 2004-10-28
Detecting the Debugger (HTML)
QA1361: Shows how to determine whether you're being run under the debugger.
Tools 2004-10-27
Private HITheme APIs in Mac OS X 10.2 should not be called (HTML)
QA1377: Explains why weak-linked API common runtime check is not good enough for the HITheme APIs.
Carbon 2004-10-27
Sorting Like the Finder (HTML)
QA1159: Shows how to sort strings like the Finder's list view.
Carbon, Cocoa, Text & Fonts 2004-10-27
Enabling X11 Forwarding (HTML)
QA1383: Describes how to enable ssh clients to receive X11 communication from a Mac OS X system.
Internet & Web, Mac OS X Server, Open Source, Security 2004-10-25
Preventing sleep (HTML) (HTML)
QA1160: Explains how your application can prevent the system from sleeping.
Carbon, Cocoa, Darwin 2004-10-22
Enabling the Navigation Services default behavior in its dialogs (HTML)
QA1384: Explains how to enable the default behavior of the Navigation Services dialogs.
Carbon 2004-10-15
Fixing the Layout Binding of the Tab control User Panes (HTML)
QA1161: Describes the Tab control hierarchy and layouts of its panes and provides a fix to a common problem.
Carbon 2004-10-14
Managing custom drawing code in a compositing world (HTML)
QA1162: Explains why any custom drawing code must be handled by the kEventControlDraw handler of a custom HIView
Carbon 2004-10-14
Sharing Browser Cookies With Java Applets (HTML) (日本語 HTML)
QA1265: Creating a persistent browser session (cookie) inside Java 1.3 Applets
Internet & Web, Java 2004-10-13
glFlush() vs. glFinish() (HTML)
QA1158: Explanation of the differences between glFlush() and glFinish()
Graphics & Imaging 2004-10-11
How do I determine how much VRAM is available on my video card? (HTML)
QA1168: Using Core Graphics and IOKit to find the physical size of VRAM on installed hardware.
Cocoa, Games, Graphics & Imaging 2004-10-11
Using the latest Mac OS X headers in my CFM project with CodeWarrior (HTML)
QA1379: Describes how to use the latest Mac OS X headers in CodeWarrior by modifying the CFM project access paths.
Tools 2004-10-08
Clickable Static Text Item (HTML)
QA1380: Explains how to make a static text item respond to clicks
Carbon, User Experience 2004-10-05
NSTimers and Rendering Loops (HTML)
QA1385: Using Cocoa timers (NSTimer) to drive a rendering loop
Cocoa, Games, Graphics & Imaging 2004-10-04
SetFontInfoForSelection incorrect prototype (HTML)
QA1375: Describes the incorrect prototyping of the SetFontInfoForSelection API and gives a workaround.
Carbon, Text & Fonts, User Experience 2004-10-04
GetDIBFromPict fails with QuickTime "Minimum" installation (HTML)
QA1294: Demonstrates how to check for any available QuickTime components required by individual QuickTime functions.
QuickTime 2004-09-28
Adding a movie reference to a movie (HTML)
QA1376: Demonstrates how to add a reference for a movie to another movie
Carbon, QuickTime 2004-09-16
Adjusting the movie brightness (HTML)
QA1382: Demonstrates how to adjust the brightness of a movie for playback.
QuickTime 2004-09-16
Movies - Saving movie playback hints (HTML)
QA1366: Explains how to save and load media play hints from Movie files.
Carbon, Cocoa, QuickTime 2004-09-14
Does Safari support 128-bit encryption? (HTML)
QA1320: Discusses support for 128-bit encryption in Apple's Safari web browser.
Apple Applications, Enterprise IT, Internet & Web, Security 2004-09-10
Avoiding Pauses When Looping Audio files with QuickTime (HTML)
QA1371: Demonstrates how to avoid pauses when looping audio files with QuickTime
Audio, Carbon, Games, QuickTime 2004-09-08
Setting the ColorSync profile for a NSBitmapImageRep object (HTML)
QA1369: Setting the ColorSync profile for a NSBitmapImageRep object
Cocoa, Graphics & Imaging 2004-09-08
Unsolicited About Boxes (HTML)
QA1363: How to properly override the default about and quit behaviors in Java 1.4 and later
Java 2004-08-31
Installing smart card reader drivers (HTML)
QA1359: Updates obsolete information contained in the pcscd(8) man page on Mac OS X Jaguar and Panther.
Hardware & Drivers, Security 2004-08-30
Sequence Grabber - Video capture with multiple IIDC cameras (HTML)
QA1365: Discusses factors which influence the number of IIDC cameras that can simultaniously be used for capture.
Hardware & Drivers, QuickTime 2004-08-25
Bonjour enforces the TXT record format in Panther (HTML)
QA1306: Explains how mDNSResponder enforces the proper TXT record format in Panther.
Carbon, Cocoa, Core Foundation, Darwin, Networking 2004-07-14
Bonjour service types used in Mac OS X (HTML)
QA1312: Provides a list of common Bonjour service types used in Mac OS X.
Hardware & Drivers, Networking 2004-07-14
Updating the TXT record of a Bonjour service (HTML)
QA1302: Explains how to update a Bonjour TXT record while running on either Jaguar or Panther.
Carbon, Cocoa, Core Foundation, Darwin, Networking 2004-07-14
Getting a Packet Trace (HTML) (日本語 HTML)
QA1176: Lists tools available for looking at the network packets on the wire.
Carbon, Cocoa, Core Foundation, Darwin, Games, Hardware & Drivers, Internet & Web, Java, Mac OS X Server, Networking, Printing, QuickTime, Security 2004-07-13
Available FireWire Isochronous Bandwidth (HTML)
QA1356: Discusses attempting to "pre-flight" an isochronous bandwidth allocation request by reading the currently available bandwidth.
Audio, Hardware & Drivers, QuickTime 2004-07-07
Dynamically registering a bundled component (HTML)
QA1083: Describes how to dynamically register a Component which resides in an Application bundle.
Carbon, QuickTime 2004-06-07
Graphics Exporters - Creating 16-bit-per-channel image files (HTML)
QA1354: Discusses how to use QuickTime Graphics Exporters to create 16-bit-per-channel image files.
Cocoa, Graphics & Imaging, QuickTime 2004-06-03
Discovering all advertised Bonjour service types (HTML)
QA1337: Explains how to discover all Bonjour service types being advertised on the local network.
Carbon, Cocoa, Core Foundation, Darwin, Hardware & Drivers, Networking 2004-06-01
New PPD keywords available in Mac OS X version 10.3 (HTML)
QA1352: Describes the new PPD keywords available for CUPS filters in Mac OS X 10.3.
Hardware & Drivers, Printing 2004-05-26
Avoiding the -42 error with DiscRecording (HTML)
QA1292: Explains how to workaround the -42 error when using the DiscRecording API.
Carbon, Cocoa 2004-05-25
Directories Appear as Volume Aliases (HTML)
QA1351: Discusses how VFS plug-ins should handle device numbers to ensure compatibility with Carbon applications.
Carbon, Darwin 2004-05-25
Generating an NMI Without a Programmer's Switch (HTML) (日本語 HTML)
QA1264: Explains how to generate a non-maskable interrupt (NMI) on CPUs without programmer's switches.
Audio, Darwin, Hardware & Drivers, Mac OS X Server, Networking, Printing, Tools 2004-04-26
Signaling the end of data when using AudioConverterFillComplexBuffer (HTML)
QA1317: How to signal the end of data when using AudioConverterFillComplexBuffer to convert audio data.
Audio 2004-04-26
Sequence Grabber - How often should I call SGIdle? (HTML)
QA1349: This Q&A discusses how often SGIdle should be called when capturing using the Sequence Grabber.
QuickTime 2004-04-06
Sequence Grabber - Using the SGDataProc for Sound (HTML)
QA1348: This Q&A discusses how you can use a Sound SGChannel with the Sequence Grabber DataProc
QuickTime 2004-04-06
Audio Unit Resizing (HTML)
QA1343: Discusses the host's responsibilities when resizing Audio Units.
Audio 2004-03-23
Bonjour enforces the service type format in Panther (HTML)
QA1198: Explains why registering a Bonjour service might fail on Panther.
Carbon, Cocoa, Hardware & Drivers, Networking 2004-03-23
QuickTime movies require a valid graphics port (HTML)
QA1345: The QuickTime Movie Toolbox requires a valid graphics port for all movies.
QuickTime 2004-03-19
DDR SDRAM ICs for PowerBooks and iBooks that use Memory bus slewing (HTML)
QA1344: Specifies DDR SDRAM IC optimization for PowerBooks and iBooks that use Memory bus slewing.
Hardware & Drivers 2004-03-18
Use the Computer Name when registering your Bonjour service (HTML)
QA1228: Explains why you should use the Computer Name when advertising a Bonjour service.
Carbon, Cocoa, Networking 2004-03-05
Developer Tools JBoss and Tomcat Do Not Start After Installing Java 1.4.2 Update (HTML)
QA1025: Describes how to re-enable JBoss and Tomcat after installing the Java 1.4.2 update.
Enterprise IT, Internet & Web, Java, Open Source 2004-03-04
Make sure your PPD Plugin calls ppdCloseCompiledPPDFromTicket (HTML)
QA1275: Avoid a potential PPD Plugin bug that can cause problems with the print dialog and applications.
Printing 2004-02-19
Creating an OpenGL texture from an NSView (HTML) (日本語 HTML)
QA1325: Addresses the issues involved with using an NSView as the source data for an OpenGL texture.
Graphics & Imaging 2004-02-13
Clearing mDNSResponder's cached records (HTML)
QA1310: Clearing the Bonjour service cache (mDNSResponder's cached records) for testing purposes.
Hardware & Drivers, Networking 2004-02-11
Duplicate Bonjour services while browsing (HTML)
QA1333: Explains how to work with multiple network interfaces when browsing for Bonjour services.
Networking 2004-02-06
Use empty string for Bonjour domains (HTML)
QA1331: Explains what to specify for the domain parameter when using Bonjour API's.
Networking 2004-02-06
Use NSSound instead of NSMovie for audio only playback on Mac OS X 10.3 and greater (HTML)
QA1335: Why using NSSound may be a better choice than using NSMovie for audio only playback.
Audio 2004-02-04
OpenGL Driver Monitor Decoder Ring (HTML) (日本語 HTML)
QA1334: Describes what each of the parameters available in the OpenGL Driver Monitor measure.
Graphics & Imaging 2004-01-30
Shearing a Coordinate Space with NSAffineTransform (HTML) (日本語 HTML)
QA1332: Describes a simple way to shear coordinate spaces by adding a few methods to the NSAffineTransform class.
Cocoa, Graphics & Imaging 2004-01-29
DV Codec settings and performance (HTML) (日本語 HTML)
QA1149: Discusses the difference between compression quality, decompression quality, and performance with the DV codec.
QuickTime 2004-01-20
Server Processes and the Dock (HTML) (日本語 HTML)
QA1328: Discusses using headless AWT from Java server applications that need to be hidden.
Java, Mac OS X Server, Porting 2004-01-19
Issues with boot time KEXT loading (HTML) (日本語 HTML)
QA1087: Explains how to solve problems with loading KEXTs at boot time.
Darwin, Hardware & Drivers 2004-01-15
Music Player Sequence Destinations (HTML) (日本語 HTML)
QA1330: Provides clarification on MIDI Endpoints and assigning MIDI data flow.
Audio 2004-01-15
Documentation for getattrlist (HTML) (日本語 HTML)
QA1327: The behaviour of getattrlist, and other Apple enhancements to the BSD file system programming interface.
Darwin 2003-12-15
AudioDevice sample rates (HTML)
QA1196: Getting, setting and converting sample rates with Audio Devices.
Audio 2003-12-09
AUGraphs and AudioUnit connections (HTML)
QA1174: Discusses AudioUnit connection issues when using more than one AudioUnit or an AUGraph.
Audio 2003-12-09
QuickTime Effects - How to set up parameter description values when using kParameterTypeDataImage (HTML) (日本語 HTML)
QA1326: Setting up an effect parameter description when using kParameterTypeDataImage as the parameter data type.
QuickTime 2003-12-09
X11 FAQ (HTML) (日本語 HTML)
QA1232: Frequently Asked Questions about using Apple's X Window System (X11) implementation.
Carbon, Darwin, Porting 2003-11-17
Why doesn't my Scrolling Text Box control work in a compositing window? (HTML)
QA1324: Explains why some older controls do not function properly in compositing windows and points to a replacement.
Carbon 2003-11-13
Developing with ZeroLink: small applications and launching on other computers (HTML)
QA1322: Resolving issues caused by the ZeroLink feature in Xcode.
Tools 2003-10-31
Downloading through a proxy server in Mac OS X (HTML)
QA1296: Explains when downloading through a proxy server will work, and when it will fail.
Carbon, Cocoa, Core Foundation, Networking 2003-10-29
Environment Variables (HTML)
QA1255: Describes how a process gets its environment variables.
Carbon, Cocoa 2003-10-29
How to solve '_objc_exception_set_functions' ZeroLink errors in Xcode (HTML)
QA1321: Explains how to eliminate '_objc_exception_set_functions' ZeroLink errors in Xcode
Tools 2003-10-29
URL Access vs. CFNetwork (HTML)
QA1291: Explains when to choose URL Access or CFNetwork when downloading files from within your application.
Carbon, Core Foundation, Networking 2003-10-29
Installing an I/O Kit KEXT Without Rebooting (HTML)
QA1319: Describes the state of the art of installing I/O Kit kernel extensions (KEXTs) without requiring a restart.
Audio, Darwin, Hardware & Drivers, Mac OS X Server, Networking 2003-10-28
Why isn't my edit text box in my Navigation dialog's custom area working on 10.3? (HTML)
QA1315: Explains a bug in the Mac OS X 10.3 Navigation Services Custom Area involving the EditText and its work around.
Carbon, User Experience 2003-10-28
Sequence Grabber - Ensuring the SG TimeBase is being driven by the Sound Clock. (HTML)
QA1314: Ensuring the Sequence Grabber TimeBase is being driven by the Sound Clock when recording audio and video.
QuickTime 2003-10-24
Bonjour TXT record rate limiting in Panther (HTML)
QA1293: Explains how mDNSResponder implements TXT record rate limiting in Panther.
Carbon, Cocoa, Hardware & Drivers, Networking 2003-10-23
Registering a Bonjour service multiple times (HTML)
QA1311: Explains why registering the same Bonjour service twice on the same machine doesn't cause a name conflict.
Carbon, Hardware & Drivers, Networking 2003-10-23
Third party VFS can't unmount on Mac OS X 10.3 (HTML)
QA1308: Describes changes in unmounting behavior for VFS plug-ins under Mac OS X 10.3 "Panther."
Carbon, Cocoa 2003-10-23
How to handle audio data with magic cookie information (HTML)
QA1318: How to handle sound files with magic cookies when using an AudioConverter.
Audio 2003-10-22
Important Java Directories on Mac OS X (HTML) (日本語 HTML)
QA1170: Mac OS X equivalents of common Java runtime and development directories.
Java 2003-10-21
QuickTime 6.4 & AvailabilityMacros.h on Mac OS X 10.2.x (HTML)
QA1316: Fixing compilation issues when upgrading to QuickTime 6.4 on Mac OS X 10.2.x systems.
QuickTime, Tools 2003-10-21
Sharpening Full Scene Anti-Aliasing Details (HTML)
QA1268: Using full scene anti-aliasing (FSAA) in OpenGL applications.
Graphics & Imaging 2003-10-10
Sleep vs. Doze on Mac OS X (HTML)
QA1309: Discusses and demonstrates sleep versus doze detection on Machintosh Mac OS X
Darwin, Hardware & Drivers, Performance 2003-10-09
Exception in JFileChooser.setAcceptAllFileFilterUsed (HTML)
Deprecated - QA1280: Workaround for a known issue in Java 1.4.1 Update 1 on Jaguar.
Java 2003-10-07
paramErr returned from ConvertMovieToFile when exporting to .wav (HTML)
QA1313: Avoid a paramErr returned from ConvertMovieToFile by setting up a Sound Description when exporting to a .wav file.
QuickTime 2003-10-06
PCI/PCI-X slots on the Power Mac G5 (HTML)
QA1307: Discusses installing PCI/PCI-X cards of different speeds in the Power Mac G5.
Darwin, Hardware & Drivers 2003-09-30
Providing QuickDraw with a Known Good Port (HTML) (日本語 HTML)
Deprecated - QA1237: How to use SetPort( NULL) to provide QuickDraw with a known good port.
Graphics & Imaging 2003-09-29
How can I tell if a PCI device has on board I/O space? (HTML)
QA1287: Demonstrates "how to" tell if a PCI device has on board I/O space.
Hardware & Drivers 2003-09-24
Sequence Grabber - Setting the sound channel play through state (HTML)
QA1303: Setting the Sound play though state when previewing and recording a sound channel with the Sequence Grabber.
QuickTime 2003-09-23
Bonjour and wake from sleep (HTML)
QA1290: Explains why applications that use Bonjour should stay registered and continue browsing on sleep.
Carbon, Cocoa, Networking 2003-09-18
NSL and how it relates to Bonjour (HTML)
QA1299: Explains the relationship between NSL and Bonjour.
Carbon, Networking 2003-09-18
Debugging arbitrary applications with Xcode (HTML)
QA1305: Debugging an application with Xcode without requiring the project that built the application.
Tools 2003-09-15
How to add other pasteboard types to an HFS Promise drag in Cocoa (HTML)
QA1300: Explains how to add other pasteboard types to an HFS Promise drag in Cocoa.
Cocoa 2003-09-15
How to remove the "Open Recent" menu item in a Document-based Cocoa application (HTML)
QA1289: Explains how to remove the "Open Recent" menu item in a Document-based Cocoa application.
Cocoa 2003-09-15
How to set a custom drag image when doing an HFS Promise drag in Cocoa (HTML)
QA1200: Explains how to set a custom drag image when doing an HFS Promise drag in Cocoa.
Cocoa 2003-09-15
Spaces in project names: solving "Missing file or directory" errors in Project Builder (HTML)
QA1301: Explains "Missing file or directory" errors when building with Project Builder.
Tools 2003-09-15
Remote or Two-Machine Debugging Applications with GDB (HTML)
QA1279: Explains how to setup a remote or two-machine debugging configuration using gdb and ssh.
Tools 2003-09-09
Sequence Grabber - How do I save user settings as CFPreferences? (HTML)
QA1286: Saving UserData settings returned from the Sequence Grabber as CFPreferences.
QuickTime 2003-09-04